{"title":"Alternators\/Regulators","description":"\u003ch2\u003eMarine Alternators \u0026amp; Voltage Regulators for Boats\u003c\/h2\u003e\u003cp\u003eHigh-output marine alternators and smart voltage regulators for efficient battery charging. Our alternators\/regulators collection features products from \u003ca href=\"\/collections\/victron-energy\"\u003eVictron Energy\u003c\/a\u003e, \u003ca href=\"\/collections\/mastervolt\"\u003eMastervolt\u003c\/a\u003e, and other manufacturers:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Output Alternators\u003c\/strong\u003e - Efficient battery charging from engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Voltage Regulators\u003c\/strong\u003e - Multi-stage charging for AGM and lithium batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Regulators\u003c\/strong\u003e - Upgrade existing alternators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternator Accessories\u003c\/strong\u003e - Pulleys, belts, and mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSmart regulators provide optimal charging for modern battery banks with temperature compensation and multi-stage charging algorithms.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eComplete Charging System:\u003c\/strong\u003e Part of our \u003ca href=\"\/collections\/power-managment\"\u003ePower Management collection\u003c\/a\u003e. Essential for charging \u003ca href=\"\/collections\/agm\"\u003eAGM\u003c\/a\u003e and \u003ca href=\"\/collections\/lithium\"\u003elithium batteries\u003c\/a\u003e. Use with \u003ca href=\"\/collections\/battery-isolators\"\u003ebattery isolators\u003c\/a\u003e, \u003ca href=\"\/collections\/battery-chargers\"\u003eshore power chargers\u003c\/a\u003e, and \u003ca href=\"\/collections\/monitoring\"\u003ebattery monitors\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"mastervolt-alpha-24-110-iii-alternator-with-3-stage-charge-regulator-48624110","title":"Mastervolt Alpha 24\/110 III Alternator with 3-Stage Charge Regulator","description":"\u003cp\u003eThe Mastervolt Alpha 24\/110 III is a high-output 24 volt, 110 amp marine alternator built to charge starter and service batteries quickly and completely while powering every consumer on board. It is supplied as standard with the Alpha Pro III charge regulator, turning the alternator into a fully temperature-controlled three-stage charger for optimal performance and longer-lasting batteries.\u003c\/p\u003e\u003cp\u003eWhere a standard alternator only delivers its rated capacity at high engine speed, the Alpha is purpose-built for powerful charging even at low rpm. Forced cooling from the pulley fan keeps output high in temperatures above 40 degrees, making it well suited to installation close to the engine. Combined with a Battery Mate or battery isolator it can charge two or three separate battery banks at the same time.\u003c\/p\u003e","brand":"Mastervolt","offers":[{"title":"Default Title","offer_id":55973184373076,"sku":"48624110","price":2232.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/legacy-653c4286.jpg?v=1781904590"},{"product_id":"mastervolt-alpha-pro-iii-45513000","title":"Mastervolt Alpha Pro III","description":"\u003cp\u003eThe Mastervolt Alpha Pro III is an advanced three-step charge regulator that turns any standard or high-performance alternator into a fully temperature-controlled charger. It lets you use the boat or vehicle engine to charge service batteries quickly and safely, whether under way or at rest, while protecting both the engine and the batteries.\u003c\/p\u003e\u003cp\u003eThe Alpha Pro III measures battery temperature and voltage to prevent overcharging, and monitors engine load to reduce sound variations, wear and tear. Its smart keep-alive feature ensures reliable tachometer readings, and via MasterBus it shares rpm, alternator status and charge status to build intelligent power systems. With up to 20 amps of field current it can control alternators rated as high as 400 A, and it suits every battery type including lithium ion on both 12 V and 24 V systems.\u003c\/p\u003e","brand":"Mastervolt","offers":[{"title":"Default Title","offer_id":55973195678036,"sku":"45513000","price":461.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/legacy-ebb99d8f.jpg?v=1781903778"},{"product_id":"mastervolt-alternator-temperature-sensor-41500400","title":"Mastervolt Alternator Temperature Sensor","description":"\u003cp\u003eThe Mastervolt alternator temperature sensor is used with the Alpha Pro charge regulator when it is connected to a non-Mastervolt alternator. Fitted to the alternator, it provides additional protection against overheating by allowing the regulator to monitor the alternator temperature. Refer to the Alpha Pro manual for fitting and configuration instructions.\u003c\/p\u003e","brand":"Mastervolt","offers":[{"title":"Default Title","offer_id":55973200068948,"sku":"41500400","price":29.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/legacy-ce6a49c0.jpg?v=1781903778"},{"product_id":"mastervolt-alpha-12-130-iii-alternator-with-3-stage-charge-regulator-48612130","title":"Mastervolt Alpha 12\/130 III Alternator with 3-Stage Charge Regulator","description":"\u003cp\u003eThe Mastervolt Alpha 12\/130 III is a high-output 12 volt, 130 amp marine alternator engineered to charge starter and service batteries quickly and completely, while powering every consumer on board. It is supplied as standard with the Alpha Pro III charge regulator, turning the alternator into a fully temperature-controlled three-stage charger for optimal performance and longer-lasting batteries.\u003c\/p\u003e\u003cp\u003eUnlike standard alternators that only deliver their rated capacity at high engine speed, the Alpha is purpose-built for powerful charging even at low rpm. Forced cooling from the pulley fan keeps output high in temperatures above 40 degrees, making it ideal for installation close to the engine. Combined with a Battery Mate or battery isolator, it can charge two or three separate battery banks at once.\u003c\/p\u003e","brand":"Mastervolt","offers":[{"title":"Default Title","offer_id":55973262885204,"sku":"48612130","price":1805.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/legacy-fbc873e7.jpg?v=1781903786"},{"product_id":"balmar-24v-max-charge-advanced-regulator-mc-624-h-incl-wiring-harness","title":"Balmar 24v MAX Charge advanced regulator. MC-624-H. incl. wiring harness","description":"The Balmar Max Charge MC-624 is the 24-volt member of Balmar's latest generation of smart, multi-stage Max Charge voltage regulators. It provides precise voltage control for Balmar high-output 24-volt alternators and other externally regulated P-type alternators, with user-selectable programs for deep cycle flooded, standard flooded, gel, AGM, spiral wound AGM and LiFePO4 batteries. A universal default program that is safe for most battery types is also provided, along with a dedicated program for vessels running voltage-sensitive halogen equipment. On start-up the regulator gently ramps the alternator up to full bulk voltage, then steps down through absorption and float for a complete, controlled charge.\n\nAlongside its preset battery programs, the MC-624 offers a wealth of advanced programming modes so charging can be tailored to almost any environment, all accessible through the supplied magnetic programming tool. When used with the optional MC-TS-A alternator and MC-TS-B battery temperature sensors, the regulator monitors ambient temperature and reduces or discontinues charging should a catastrophic over-temperature condition occur at the alternator or the batteries. It also features Balmar's Belt Load Manager for limiting field output to protect drive belts. This version is supplied complete with the 54 inch wiring harness, a fused battery sense pigtail and the magnetic programming tool.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272512549204,"sku":"MC-624-H","price":606.53,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/c4f1425b-5d38-4b47-ba58-f1dbc34b6aed.png?v=1783590733"},{"product_id":"kit-smart-ready-for-valeo-ars-5-regulator-tsensors","title":"Kit, Smart Ready for Valeo, ARS-5 Regulator, TSensors","description":"The Balmar ARS-5-VL-01 is a Smart Ready retrofit kit that lets owners of Yanmar engines fitted with a factory Valeo 120A\/12V alternator add Balmar multi-stage regulation without replacing the alternator. Balmar's patented Smart Ready design converts the standard single-stage internal regulator so the Valeo alternator can be driven by the external ARS-5 regulator, delivering the faster, more complete, battery-specific charging normally associated with shore-power chargers. Should the external regulator ever fail, the internal regulator continues to provide basic charging as a come-home backup.\n\nThe kit contains the 30-SR12-02 internal regulator retrofit, an ARS-5-H external regulator with wiring harness, and the alternator and battery temperature sensor cables needed to complete the conversion. The ARS-5 provides user-selectable programs for deep cycle flooded, gel, AGM and spiral wound batteries plus a universal default program, along with advanced programming modes and over-temperature protection. Installation is straightforward and requires only common hand tools, and the kit includes the tool needed to install the brushes. It suits recent Yanmar 2YM, 3YM, 3JH and 4JH engines equipped with the Valeo alternator.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272770335060,"sku":"ARS-5-VL-01","price":704.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/53d66782-79cb-48fb-8cd0-e096d1e72a22_fffb9451-56a8-4816-85f5-d54a89b347c9.jpg?v=1783590704"},{"product_id":"universal-belt-buddy-w-o-adjustment-arm","title":"Universal Belt Buddy, w\/o Adjustment Arm","description":"The Balmar BBU is a universal Belt Buddy tensioning mechanism designed to fit onto an existing alternator adjustment arm, converting a standard tensioning arm into the Belt Buddy system. It is precision cut and powder coated for corrosion protection, and gives a controlled, repeatable way to set belt tension during alternator installation.\n\nUnlike the complete UBB assembly, the BBU is supplied on its own for owners who already have a suitable adjustment arm and simply want to add Belt Buddy functionality. It provides a positive stop that helps prevent belt slip once tension is set.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272770466132,"sku":"BBU","price":86.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/5af19f73-03ee-4e7b-9e2b-795ce192a576.png?v=1783590703"},{"product_id":"balmar-centrefielder-allows-two-alternators-to-charger-one-battery-bank-when-used-with-balmar-external-regulators-cfii-12-24","title":"Balmar Centrefielder - allows two alternators to charger one battery bank when used with Balmar external regulators CFII-12\/24","description":"The Balmar Centerfielder II is a charge balancer for twin-engine vessels that use two alternators and two Balmar external regulators to charge a single battery bank. It senses when only one engine is running, and when the second engine starts it determines which regulator's field current is dominant and directs that field current to both alternators. This even distribution ensures both alternators deliver comparable percentages of their available capacity, so the combined output of both machines charges one house bank in a balanced, controlled way. For best performance the two regulators should be identical.\n\nBeyond balancing charge across both alternators, the Centerfielder II adds valuable redundancy: should either the port or starboard regulator fail, the unit ensures both alternators continue to supply charging current from the remaining regulator. It works in both 12-volt and 24-volt systems and is designed for use with Balmar MC-612 or MC-624 regulators. Installation is straightforward, and the unit is supplied with the spade and wire-tap connectors needed for wiring, along with two fused 12-gauge replacement power wires for the regulator harnesses.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272770859348,"sku":"CFII-12\/24","price":381.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/2dcb31a6-347a-4786-98ec-860e6a4bfbfa.jpg?v=1783590704"},{"product_id":"kit-smart-ready-for-valeo-mc-618-regulator-tsensors","title":"Kit, Smart Ready for Valeo, MC-618 Regulator, TSensors","description":"The Balmar MC-618-VL-01 is a Smart Ready retrofit kit that lets owners of Yanmar engines fitted with a factory Valeo 120A\/12V alternator add Balmar's most capable multi-stage regulation without replacing the alternator. Balmar's patented Smart Ready design converts the standard single-stage internal regulator so the Valeo alternator can be driven by the external MC-618 Max Charge regulator, delivering faster, more complete, battery-specific charging. Should the external regulator ever fail, the internal regulator continues to provide basic charging as a come-home backup, making the kit well suited to AGM or lithium battery banks.\n\nThe kit contains the 30-SR12-02 internal regulator retrofit, an MC-618-H external regulator with wiring harness, and the alternator and battery temperature sensor cables needed to complete the conversion. The MC-618 provides user-selectable programs for deep cycle flooded, standard flooded, gel, AGM, spiral wound AGM, Carbon Foam and LiFePO4 batteries, integrates with the SG200 Battery Monitor over SmartLink, and supports full programming from the Balmar smartphone app when the optional Bluetooth gateway is added. Installation is straightforward and requires only common hand tools, and the kit includes the tool needed to install the brushes. It suits recent Yanmar 2YM, 3YM, 3JH and 4JH engines equipped with the Valeo alternator.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272771252564,"sku":"MC-618-VL-01","price":918.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/ff731350-7892-4338-89ba-6d8e9e6a1fcb.jpg?v=1783590706"},{"product_id":"temperature-sensor-alternator-54-inch-length","title":"Temperature Sensor, Alternator 54 inch Length","description":"The Balmar MC-TS-A is an alternator temperature sensor with a 54 inch lead, used with Balmar MC series external voltage regulators such as the Max Charge and ARS-5. It lets the regulator monitor alternator case temperature and automatically reduce output if the alternator runs hot, protecting it during heavy charging. Balmar require alternator temperature sensing on all externally regulated installations, so this sensor, or the longer 80 inch version, should be fitted whenever a Balmar external regulator is used.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272771416404,"sku":"MC-TS-A","price":66.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/d068abcd-4b4f-40d8-91e1-dd46de04c34b.png?v=1783590706"},{"product_id":"battery-temperature-sensor-20ft-6m-length","title":"Battery Temperature Sensor - 20ft (6m) Length","description":"The Balmar MC-TS-B is a battery temperature sensor with a 20 foot (6 metre) lead, used with Balmar MC series external voltage regulators such as the Max Charge and ARS-5. It reports battery temperature to the regulator so charging voltages are adjusted for warm or cold conditions, keeping charging accurate and safe. If battery temperature rises beyond safe limits the regulator can reduce or discontinue charging and signal a warning, helping to protect the bank. The longer 30 foot version is available where the batteries are further from the regulator.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272772006228,"sku":"MC-TS-B","price":82.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/f79413e8-a3b8-4f96-b89c-f63d7236d789.png?v=1783590707"},{"product_id":"spike-ground-protector-24v-only","title":"Spike Ground Protector, 24v Only","description":"The Balmar TSP-24 is a transient spike and ground protector for 24 volt charging systems, built to shield an alternator and regulator from damaging voltage spikes. It mounts directly to the alternator between the positive and negative connections, and uses fused diodes that are designed to fail before the alternator diodes are damaged, giving a safe path to ground should an AC or DC spike hit the charging system. A common cause of alternator failure is switching the ignition or battery switch off while the alternator is still running; the TSP sacrifices itself to protect the more expensive alternator and regulator.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272772694356,"sku":"TSP-24","price":57.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/e50a4306-eb6a-4309-a2b0-c564ca2cd613.png?v=1783590707"},{"product_id":"alternator-at-series-165a-12v-singleft-1-2in-k6pul-isogrd","title":"Alternator, AT Series, 165a, 12v, SingleFT, 1-2in, K6Pul, IsoGrd","description":"The Balmar AT-SF-165-K6 is a compact, high-output marine alternator rated at 165 amps on a 12 volt system. Part of Balmar's AT (Advanced Technology) Series, it uses a hairpin-wound stator with densely packed square copper wire to generate exceptional output from a small case, delivering up to around 125 amps even at idle speeds. The design runs efficiently and stays cool thanks to dual internal fans, a high airflow frame and generous heat sinking, making it a strong charging solution for cruising vessels with large battery banks.\n\nThe AT-SF-165-K6 fits a 1 inch or 2 inch single foot (spindle) mount and comes with a K6 serpentine pulley. It uses a dedicated grounding terminal (isolated ground) and is designed for external multi-stage regulation with a Balmar regulator such as the MC-614. Certified to USCG Title 33, ISO and SAE ignition-protection standards, it should be run only in Dual Vee or multi-groove serpentine belt configurations.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272772759892,"sku":"AT-SF-165-K6","price":1765.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/d382e9e0-962e-4bbb-bcf0-29b2b44ead3e.png?v=1783590710"},{"product_id":"universal-adjustment-arm","title":"Universal Adjustment Arm","description":"The Balmar UAA is a Universal Adjustment Arm for marine alternator installations, offering a longer, more positive arm for setting and holding belt tension. It is precision cut and powder coated to resist corrosion, and is a common upgrade over short or flimsy factory tensioning arms.\n\nThe UAA can be used on its own for alternator adjustment, or combined with a Belt Buddy mechanism to build the complete UBB Belt Buddy system. Its extra length gives better leverage and a more secure hold when tensioning the drive belt.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272772825428,"sku":"UAA","price":60.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/3225f6f1-78bb-4c6e-af4e-0ac3d7fc731d.png?v=1783590711"},{"product_id":"alternator-60-series-100a-12v-saddlemt-3-15in-singpul-isogrd","title":"Alternator, 60 Series, 100a, 12v, SaddleMT, 3.15in. SingPul, IsoGrd","description":"The Balmar 60-100-SV is a 100-amp, 12-volt marine alternator from Balmar's top-selling 6-Series, engineered to deliver high-output charging performance in a compact, small-case package. It uses a 3.15 inch saddle (dual-foot) mount in the Hitachi style that suits many Yanmar, Westerbeke, Lehman and Perkins-Sabre diesels, and it is fitted with a single half-inch deep-vee pulley and an isolated-ground terminal for clean continuity to the vessel's system ground. Dual-fan cooling and a high-airflow frame help the alternator sustain output in the confined, warm spaces typical of an engine room.\n\nThe 60-100-SV features Balmar's patented Smart Ready internal regulator. Where battery loads are modest and the engine runs frequently, the internal regulator can support the electrical system on its own, while vessels with larger deep-cycle banks or a lighter engine duty cycle can add a Balmar ARS-5 or Max Charge multi-stage external regulator for fully programmable, battery-specific charging. Built to USCG Title 33, ISO, SAE and CE requirements, it draws roughly 4.0 horsepower at full 100-amp output and is rated for a maximum of 12,000 alternator RPM.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272772956500,"sku":"60-100-SV","price":787.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/a9a75561-1168-4585-b5c2-41a743c3471f.png?v=1783590711"},{"product_id":"belt-buddy-w-uaa-universal-adjustment-arm","title":"Belt Buddy, w\/UAA Universal Adjustment Arm","description":"The Balmar UBB is the complete Belt Buddy assembly, combining the Universal Adjustment Arm (UAA) with the Belt Buddy tensioning mechanism in one unit. Designed to reduce installation time and frustration, it lets you adjust alternator belt tension accurately and then locks in a positive stop so the belt does not slip.\n\nBoth parts are precision cut and powder coated for corrosion protection. Because it ships as a matched arm and mechanism, the UBB is the simplest way to add the full Belt Buddy tensioning system to an alternator installation without sourcing components separately.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272773022036,"sku":"UBB","price":123.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/5c9b1642-cb61-4ff0-aab4-0f5c2d70f2a5.png?v=1783590706"},{"product_id":"alternator-60-series-120a-12v-saddlemt-3-15in-k6pul-isogrd","title":"Alternator, 60 Series, 120a, 12v, SaddleMT, 3.15in K6Pul, IsoGrd","description":"The Balmar 60-120-K6 is a 120-amp, 12-volt marine alternator from Balmar's top-selling 6-Series, delivering strong charging output from a compact, small-case frame. It mounts on a 3.15 inch saddle (dual-foot) bracket in the Hitachi style used by many Yanmar, Westerbeke, Lehman and Perkins-Sabre diesels, and is fitted with a K6 serpentine pulley plus an isolated-ground terminal for reliable continuity to the vessel's system ground. Dual-fan cooling and a high-airflow frame help the unit hold its output in the warm confines of a typical engine space.\n\nThe 60-120-K6 uses Balmar's patented Smart Ready internal regulator. When battery loads are modest and the engine runs frequently, the internal regulator can carry the electrical system alone; for larger deep-cycle banks or a lighter engine duty cycle, pair it with a Balmar ARS-5 or Max Charge multi-stage external regulator to tailor charging to the battery chemistry. Built to USCG Title 33, ISO, SAE and CE standards, it draws roughly 4.8 horsepower at full 120-amp output and is rated for up to 12,000 alternator RPM.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272773153108,"sku":"60-120-K6","price":877.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/4a921f37-9805-41b8-9b68-204bbde0916a.png?v=1783590712"},{"product_id":"alternator-621-series-100a-12v-singleft-1-2in-singpul-isogrd","title":"Alternator, 621 Series, 100a, 12v, SingleFT, 1-2in, SingPul, IsoGrd","description":"The Balmar 621-100-SV is a 100-amp, 12-volt marine alternator from Balmar's top-selling 6-Series. It shares the compact, small-case design of the saddle-mount 60 Series but uses a 1 to 2 inch single-foot spindle mount in the Motorola and Delco style, making it the natural high-output upgrade for engines fitted with a common single-foot alternator. It comes with a single half-inch deep-vee pulley and an isolated-ground terminal, while dual-fan cooling and a high-airflow frame help it maintain output in the heat of an engine compartment.\n\nThe 621-100-SV features Balmar's patented Smart Ready internal regulator. If battery loads are relatively small and the engine runs frequently, the internal regulator may be all that is required; vessels with larger deep-cycle banks or a lighter engine duty cycle can add a Balmar ARS-5 or Max Charge multi-stage external regulator for fully programmable, battery-specific charging. Built to USCG Title 33, ISO, SAE and CE requirements, it draws roughly 4.0 horsepower at full 100-amp output and is rated for up to 12,000 alternator RPM.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272773382484,"sku":"621-100-SV","price":787.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/5e343bb4-68c3-486b-af1b-a364dba9fcfd.png?v=1783590668"},{"product_id":"alternator-621-series-120a-12v-singleft-1-2in-k6pul-isogrd","title":"Alternator, 621 Series, 120a, 12v, SingleFT, 1-2in, K6Pul, IsoGrd","description":"The Balmar 621-120-K6 is a 120-amp, 12-volt marine alternator from Balmar's top-selling 6-Series. It combines the compact, small-case design of the range with a 1 to 2 inch single-foot spindle mount in the Motorola and Delco style, so it drops in as a high-output upgrade on engines fitted with a common single-foot alternator. It is supplied with a K6 serpentine pulley and an isolated-ground terminal, and dual-fan cooling with a high-airflow frame helps sustain output in a hot engine space.\n\nThe 621-120-K6 uses Balmar's patented Smart Ready internal regulator. Where battery loads are modest and the engine runs frequently, the internal regulator can carry the system alone, while larger deep-cycle banks or a lighter engine duty cycle can be served by adding a Balmar ARS-5 or Max Charge multi-stage external regulator to match charging to the battery chemistry. Built to USCG Title 33, ISO, SAE and CE standards, it draws roughly 4.8 horsepower at full 120-amp output and is rated for up to 12,000 alternator RPM.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272773579092,"sku":"621-120-K6","price":877.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/23a7feb7-6823-4ef9-9a81-0025622acc32.png?v=1783590669"},{"product_id":"regulator-ars-multi-stage-12v-w-harness","title":"Regulator, ARS Multi-Stage, 12v, w\/Harness","description":"The Balmar ARS-5 is a multi-stage voltage regulator that provides precise charging control for Balmar high-output 12-volt alternators and other externally regulated P-type (positive field) alternators. It sits in the middle of the Balmar regulator range, delivering the core benefits of smart, multi-stage regulation, faster and more complete charging, better battery life and reduced alternator wear, at an accessible price. User-selectable programs are provided for deep cycle flooded, gel, AGM and spiral wound (Optima) batteries, along with a universal default program that is safe for most battery types.\n\nIn addition to its preset battery programs, the ARS-5 includes a range of advanced programming modes so charging can be tailored to a wide variety of installations and battery banks, all set through the supplied magnetic programming tool. When used with the optional MC-TS-A alternator and MC-TS-B battery temperature sensors, the regulator monitors ambient temperature and reduces or discontinues charging voltages should a catastrophic over-temperature condition occur at the alternator or the batteries. This version is supplied complete with the 54 inch wiring harness for a straightforward installation.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272774267220,"sku":"ARS-5-H","price":452.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/53d66782-79cb-48fb-8cd0-e096d1e72a22.jpg?v=1783590695"},{"product_id":"regulator-dual-mc612-multi-stage-12v-w-o-harnesses","title":"Regulator, Dual MC612 Multi-Stage, 12v, w\/o Harnesses","description":"The Balmar Max Charge MC-612-DUAL is a multi-stage voltage regulator designed for single-engine, dual-alternator installations where both alternators charge the same large battery bank. It provides two field output connectors, two power input connectors and two system ground connections, so a pair of standard wiring harnesses can be used to drive two 12-volt externally regulated P-type alternators from a single regulator, without splitting and splicing field wires. Its microprocessor-controlled charging ramps gently to full bulk voltage, then reduces to absorption and float for a complete, controlled charge.\n\nUser-selectable programs cover deep cycle flooded, standard flooded, gel, AGM, spiral wound AGM and LiFePO4 batteries, along with a universal default program and a program for vessels running voltage-sensitive halogen equipment. When used with optional MC-TS-A alternator and MC-TS-B battery temperature sensors, the regulator monitors temperature and adjusts output accordingly, and the flexible sensing configuration lets you monitor either two alternators and one battery bank, or one alternator and two battery banks. It also features Balmar's Belt Load Manager to limit field output and protect drive belts. This part number is the regulator only, supplied without wiring harnesses.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272774299988,"sku":"MC-612-DUAL","price":613.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/4827c233-f035-46dd-88bc-8f73d911b475.png?v=1783590712"},{"product_id":"offshore-repair-kit-at-series-165a-12v-incl-bearings-brushes-rectifier","title":"Offshore Repair Kit, AT Series, 165a, 12v, (incl bearings, brushes, rectifier)","description":"The Balmar 70-AT-165 Offshore Repair Kit provides the parts most likely to be needed to service a 165A 12V Balmar AT-Series alternator while cruising. It is intended for offshore sailors who rely on a high-output alternator and want to be able to repair it without shoreside support.\n\nThe kit includes replacement bearings, brushes and a rectifier for the AT-Series (165A). With these spares aboard, a competent owner or engineer can rebuild the alternator and bring charging back online rather than waiting for parts.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272780198228,"sku":"70-AT-165","price":346.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/1ff9e604-c255-415e-93de-636d68081cdf.png?v=1783590732"},{"product_id":"offshore-repair-kit-60-series-12v-incl-bearings-brushes-regulator-rectifier","title":"Offshore Repair Kit, 60 Series, 12v, (incl bearings, brushes, regulator\/rectifier)","description":"The Balmar 7060 Offshore Repair Kit brings together the parts most commonly needed to service a 12V Balmar 60-Series alternator while cruising, so a fault far from a workshop need not leave you without charging. Recommended for offshore and long-distance sailors, it carries the wear items and electrical components that most often fail in service.\n\nThe kit includes replacement bearings, brushes and a complete regulator and rectifier assembly for the 60-Series (12V). Keeping one aboard alongside your spares means a competent owner or engineer can rebuild the alternator and restore charging without waiting for parts.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272780165460,"sku":"7060","price":312.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/0ce5792f-ea68-4f26-b30a-5d45b934190a.png?v=1783590698"},{"product_id":"offshore-repair-kit-60-series-24v-incl-bearings-brushes-regulator-rectifier","title":"Offshore Repair Kit, 60 Series, 24v, (incl bearings, brushes, regulator\/rectifier)","description":"The Balmar 7060-24 Offshore Repair Kit is the 24V version of Balmar's 60-Series service kit, gathering the parts most likely to be needed to repair a 24V 60-Series alternator away from port. It is aimed at cruisers who want the security of onboard spares for their charging system.\n\nThe kit includes replacement bearings, brushes and a complete regulator and rectifier assembly matched to the 24V 60-Series. With it aboard, a competent owner or engineer can rebuild the alternator and get charging running again without a long wait for parts.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272780329300,"sku":"7060-24","price":312.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/c775b12f-0180-47e8-8dce-e5b0b210d7a1.png?v=1783590699"},{"product_id":"offshore-repair-kit-at-series-200a-12v-incl-bearings-brushes-rectifier","title":"Offshore Repair Kit, AT Series, 200a, 12v, (incl bearings, brushes, rectifier)","description":"The Balmar 70-AT-200 Offshore Repair Kit provides the parts most likely to be needed to service a 200A 12V Balmar AT-Series alternator on passage. It suits cruisers running a high-output AT-Series alternator who want the ability to carry out a repair far from a workshop.\n\nThe kit includes replacement bearings, brushes and a rectifier for the AT-Series (200A). Kept aboard with your other spares, it lets a competent owner or engineer rebuild the alternator and restore charging without a long wait for parts.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272780362068,"sku":"70-AT-200","price":346.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/18ee3c62-1d91-4c35-840c-5ef408a757bf.png?v=1783590704"},{"product_id":"alternator-xt-series-170a-12v-saddle-mount-dual-foot-3-15in-j10-altmount-serpentine-pulley-case-ground","title":"Alternator, XT Series, 170A, 12V, Saddle Mount (Dual Foot), 3.15in, J10 AltMount Serpentine Pulley, Case Ground","description":"The Balmar XT-DF-170-J10 is a small-case, high-output marine alternator rated at 170 amps on a 12 volt system. As part of Balmar's flagship XT-Series, it uses a state-of-the-art braided-wire stator with 96 slots to pack exceptional charging power into a compact frame, producing more output than the previous AT-Series while running cooler. It delivers up to 128 amps at idle speed, which makes it well suited to large battery banks, including lithium, where strong charging at low RPM matters.\n\nThis variant fits a 3.15 inch dual foot (Hitachi-style saddle) mount and is supplied with a J10 AltMount serpentine pulley and case ground termination. It is typically used on Yanmar, Westerbeke, Lehman and Perkins-Sabre engines. The XT-Series includes an internal Smart Ready voltage regulator for added fault tolerance and is also compatible with Balmar external multi-stage regulation. Dual internal fans and a high airflow frame keep it cool, and it carries USCG Title 33, ISO 8846 and SAE J1171 certification.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272780755284,"sku":"XT-DF-170-J10","price":932.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/91bf9c16-2070-4264-b99a-8f98ea2ca4fe.png?v=1783590698"},{"product_id":"offshore-repair-kit-90-series-12-24v-incl-bearings-brushes-pos-neg-diodes-7090","title":"Offshore Repair Kit, 90 Series, 12\/24v, (incl bearings, brushes, pos\/neg diodes) - 7090","description":"The Balmar 7090 Offshore Repair Kit holds the parts most commonly needed to service a Balmar 90-Series alternator on passage, covering both 12V and 24V versions of the series. It is recommended for cruisers who want to be able to restore charging without depending on shoreside supply.\n\nThe kit includes replacement bearings, brushes and positive and negative diodes for the 90-Series. Carried with your other engine spares, it lets a competent owner or engineer rebuild the alternator and bring the charging system back online at sea.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272780788052,"sku":"7090","price":214.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/feb1fa3e-8f35-4f9e-b2df-b54581225118.png?v=1783590732"},{"product_id":"offshore-repair-kit-94-series-12-24v-incl-bearings-brushes-pos-neg-diodes","title":"Offshore Repair Kit, 94 Series, 12\/24v, (incl bearings, brushes, pos\/neg diodes)","description":"The Balmar 7094 Offshore Repair Kit gathers the components most likely to be needed to service a Balmar 94-Series alternator while cruising, suitable for both 12V and 24V versions of the series. It is aimed at offshore sailors who want onboard spares for their charging system.\n\nThe kit includes replacement bearings, brushes and positive and negative diodes for the 94-Series. With it aboard, a competent owner or engineer can rebuild the alternator and restore charging without waiting for parts to be shipped.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272781345108,"sku":"7094","price":312.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/92a5c88e-fcf4-43e7-ae78-a138fb47209d.png?v=1783590733"},{"product_id":"offshore-repair-kit-95-series-12-24v-incl-bearings-brushes-pos-neg-diodes","title":"Offshore Repair Kit, 95 Series, 12\/24v, (incl bearings, brushes, pos\/neg diodes)","description":"The Balmar 7095 Offshore Repair Kit gathers the wearing parts needed to service a 95 Series alternator without sending it to a workshop. It contains the front and rear bearings, a replacement brush set and the positive and negative rectifier diodes, so a competent engineer can refresh the charging end of the alternator while under way or at a remote anchorage.\n\nBalmar packages these kits as onboard spares insurance for offshore and long-distance cruisers running a 95 Series, 12 or 24 volt alternator. Fitting the kit restores original charging output and reliability and extends the working life of the alternator.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272781738324,"sku":"7095","price":388.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/36c7438a-5863-4295-a71e-a16590d27b2a.png?v=1783590733"},{"product_id":"regulator-dual-mc-612-multi-stage-12v-w-harnesses","title":"Regulator, Dual MC-612 Multi-Stage, 12v, w\/Harnesses","description":"The Balmar Max Charge MC-612-DUAL is a multi-stage voltage regulator designed for single-engine, dual-alternator installations where both alternators charge the same large battery bank. It provides two field output connectors, two power input connectors and two system ground connections, so both 12-volt externally regulated P-type alternators can be driven from a single regulator without splitting and splicing field wires. Its microprocessor-controlled charging ramps gently to full bulk voltage, then reduces to absorption and float for a complete, controlled charge.\n\nUser-selectable programs cover deep cycle flooded, standard flooded, gel, AGM, spiral wound AGM and LiFePO4 batteries, along with a universal default program and a program for vessels running voltage-sensitive halogen equipment. When used with optional MC-TS-A alternator and MC-TS-B battery temperature sensors, the regulator monitors temperature and adjusts output accordingly, and the flexible sensing configuration lets you monitor either two alternators and one battery bank, or one alternator and two battery banks. It also features Balmar's Belt Load Manager to limit field output and protect drive belts. This version is supplied complete with two wiring harnesses for connecting both alternators.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272781902164,"sku":"MC-612-DUAL-H","price":679.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/b0871855-26f4-4931-8b58-126452292b49.png?v=1783590695"},{"product_id":"belt-buddy-kit-includes-the-universal-adjustment-arm-uaa2","title":"Belt Buddy Kit; Includes the Universal Adjustment Arm (UAA2)","description":"The Balmar UBB2 is a complete Belt Buddy kit built around the offset Universal Adjustment Arm (UAA2), which carries a 1\/2 inch offset to suit certain alternator mounting applications where the standard arm will not line up. It combines that offset arm with the Belt Buddy tensioning mechanism for accurate, slip-free belt adjustment.\n\nLike the standard UBB, the components are precision cut and powder coated for corrosion protection and provide a positive stop once tension is set. Choose the UBB2 over the UBB when your installation needs the extra 1\/2 inch of offset for proper alignment.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272786653524,"sku":"UBB2","price":153.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/267b09e6-57a1-4545-b9d1-03ec67023ce8.jpg?v=1783590698"},{"product_id":"universal-lamp-relay","title":"Universal Lamp Relay","description":"The Balmar ULR is a universal lamp relay that uses the alternator stator output to drive a charge indicator lamp, letting a traditional dashboard warning lamp work alongside a modern electronic voltage regulator. When the alternator is turning and producing stator voltage the relay operates, so it can light a charge lamp or complete another circuit whenever the alternator is running. It is supplied complete with the relay and wiring harness.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272787308884,"sku":"ULR","price":36.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/0a277f81-e086-4789-889e-f14ca48af55b.jpg?v=1783590724"},{"product_id":"regulator-mc-620-h-multi-stage-for-48v-applications-w-harness","title":"Regulator, MC-620-H Multi-Stage, for 48V Applications, w\/Harness.","description":"The Balmar Max Charge MC-620 is a multi-stage voltage regulator developed specifically for 48-volt charging systems. It is intended for exclusive use with Balmar's 96-Series 48-volt alternators, the 60 amp 96-48-60-K6 and the 100 amp 96-48-100-K8, and gives these high-output machines the same intelligent, battery-specific regulation found across the Max Charge range. Its microprocessor provides individualised charging profiles for universal, lead-acid starting, lead-acid deep cycle, gel, AGM, spiral wound AGM (such as Optima) and halogen loads, ramping smoothly through bulk, absorption and float for a complete, controlled charge.\n\nBecause the 96-Series alternators produce so much power, the MC-620 requires the MC-TS-A alternator temperature sensor, which is not included in the harness and must be purchased separately. The sensor lets the regulator monitor alternator temperature and use active temperature regulation to limit output and protect the alternator if safe operating levels are exceeded. For lithium banks the MC-620 disables charging at or below freezing and both the MC-TS-A and MC-TS-B temperature sensors are required. Note that although this is a 48-volt charging system, the regulator's field input operates at 12 volts, so 48 volts must never be applied to the regulator. This version is supplied complete with the wiring harness.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272792355156,"sku":"MC-620-H","price":765.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/8c7bcd65-9621-4e2e-b182-c8bd5fd12098.png?v=1783590702"},{"product_id":"48-volt-60-amp-alternator-2-9kw-j-180-4-dual-foot-mounting","title":"48 Volt, 60 Amp Alternator (2.9kW) J-180 4\" Dual Foot Mounting","description":"The Balmar 96-48-60-K6 is a 60-amp, 48-volt marine alternator that delivers 2.9 kW of charging power, part of the 96-Series that Balmar developed for the growing number of 48-volt battery banks and inverter systems. Moving to 48 volts allows more efficient chargers and inverters, smaller cable sizes and strong alternator output in a reasonable package, and it suits lithium banks that can accept very high charge rates. A low 1,325 RPM turn-on threshold means the alternator starts making power early in the rev range, limiting the need for complex pulley schemes or over-throttling the engine at idle.\n\nThe 96-48-60-K6 uses a large-case, positive field excitation design with dual internal cooling fans, sealed heavy-duty bearings and a ventilated cast-aluminium case with a clear-anodised finish. It mounts on a 4 inch dual-foot saddle in the J-180 style and drives a K6 serpentine pulley, handling up to 8 horsepower of power take-off. This version uses a case-ground termination. It runs exclusively with the Balmar MC-620 multi-stage regulator, which requires its own 12-volt supply and cannot be powered from the 48-volt source; the alternator will not operate without it. For lithium charging the MC-620 disables output at or below 0 C using the MC-TS-A and MC-TS-B temperature sensors.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272792387924,"sku":"96-48-60-K6","price":4579.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/70ff1b27-4653-46bc-8bfb-afd6e11534de.jpg?v=1783590725"},{"product_id":"regulator-mc-618-multi-stage-12v-w-o-harness","title":"Regulator, MC-618 Multi-Stage, 12v, w\/o Harness","description":"The Balmar MC-618 is the latest generation of Balmar's smart, multi-stage Max Charge voltage regulator, developed to deliver precise, battery-specific charging control for Balmar high-output 12-volt alternators and other externally regulated P-type alternators. It replaces the long-serving MC-614 and adds a new Carbon Foam AGM battery profile, improved high-temperature alternator control, and protection that prevents lithium batteries from being charged below freezing. User-selectable programs cover deep cycle flooded, standard flooded, gel, AGM, spiral wound AGM, Carbon Foam and LiFePO4 batteries, plus a universal default program for vessels running voltage-sensitive halogen equipment.\n\nBeyond its preset battery programs, the MC-618 offers a full suite of advanced programming modes so charging can be tuned to almost any installation. It communicates with the Balmar SG200 Battery Monitor over the SmartLink network, letting you view real-time charging stage, target versus actual voltage and field output percentage on the SG200 colour display, and when the optional Bluetooth gateway is added, full basic and advanced programming is available from the Balmar smartphone app. Used with the optional MC-TS-A alternator and MC-TS-B battery temperature sensors, the regulator monitors ambient temperature and reduces or discontinues charging if a catastrophic over-temperature condition occurs. This part number is the regulator only, supplied without a wiring harness.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272793305428,"sku":"MC-618","price":530.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/bb79ebb6-8830-4543-88ce-7279f883986b.png?v=1783590699"},{"product_id":"48-volt-60-amp-alternator-2-9kw-j-180-4-dual-foot-mounting-isolated-ground","title":"48 Volt, 60 Amp Alternator (2.9kW) J-180 4\" Dual Foot Mounting, Isolated Ground","description":"The Balmar 96-48-60-K6-IG is a 60-amp, 48-volt marine alternator delivering 2.9 kW of charging power, from the 96-Series that Balmar designed for emerging 48-volt battery banks and inverter systems. A 48-volt architecture supports more efficient chargers and inverters, smaller cable sizes and strong alternator output in a reasonable package, and it is well matched to lithium banks that accept very high charge rates. A low 1,325 RPM turn-on threshold lets the alternator make power early in the rev range, reducing the need for complex pulley schemes or over-throttling at idle.\n\nThis version, the K6-IG, adds an isolated-ground terminal so the charging output can be kept electrically separate from the alternator case and engine block. It uses a large-case, positive field excitation design with dual internal cooling fans, sealed heavy-duty bearings and a ventilated cast-aluminium case with a clear-anodised finish, mounting on a 4 inch dual-foot saddle in the J-180 style with a K6 serpentine pulley and handling up to 8 horsepower of power take-off. It runs exclusively with the Balmar MC-620 multi-stage regulator, which requires its own 12-volt supply; the alternator will not operate without it, and for lithium banks the MC-620 disables charging at or below 0 C using the MC-TS-A and MC-TS-B temperature sensors.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272793338196,"sku":"96-48-60-K6-IG","price":5024.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/71f56d45-32e8-40a5-969f-3da00ca666bb.jpg?v=1783590728"},{"product_id":"regulator-mc-618-multi-stage-12v-w-harness","title":"Regulator, MC-618 Multi-Stage, 12v, w\/Harness","description":"The Balmar MC-618 is the latest generation of Balmar's smart, multi-stage Max Charge voltage regulator, developed to deliver precise, battery-specific charging control for Balmar high-output 12-volt alternators and other externally regulated P-type alternators. It replaces the long-serving MC-614 and adds a new Carbon Foam AGM battery profile, improved high-temperature alternator control, and protection that prevents lithium batteries from being charged below freezing. User-selectable programs cover deep cycle flooded, standard flooded, gel, AGM, spiral wound AGM, Carbon Foam and LiFePO4 batteries, plus a universal default program for vessels running voltage-sensitive halogen equipment.\n\nBeyond its preset battery programs, the MC-618 offers a full suite of advanced programming modes so charging can be tuned to almost any installation. It communicates with the Balmar SG200 Battery Monitor over the SmartLink network, letting you view real-time charging stage, target versus actual voltage and field output percentage on the SG200 colour display, and when the optional Bluetooth gateway is added, full basic and advanced programming is available from the Balmar smartphone app. Used with the optional MC-TS-A alternator and MC-TS-B battery temperature sensors, the regulator monitors ambient temperature and reduces or discontinues charging if a catastrophic over-temperature condition occurs. This version is supplied complete with the plug-in wiring harness and magnetic programming tool for a straightforward installation.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272793370964,"sku":"MC-618-H","price":562.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/6fe56ac9-bacf-427a-8451-c42742154f99.png?v=1783590701"},{"product_id":"alternator-96-series-100a-48v-saddlemt-4in-dualpul-isogrd","title":"Alternator, 96 Series, 100a, 48v, SaddleMT, 4in, DualPul, IsoGrd","description":"The Balmar 96-48-100-K8-IG is a 100-amp, 48-volt marine alternator delivering 4.8 kW of charging power, from the 96-Series that Balmar designed for emerging 48-volt battery banks and inverter systems. A 48-volt system supports more efficient chargers and inverters, smaller cable sizes and high alternator output in a reasonable package, and it is well matched to lithium banks that accept very high charge rates. With a turn-on threshold near 2,250 RPM, the 96-Series makes power earlier in the rev range, reducing the need for complex pulley schemes or over-throttling at idle.\n\nThis version, the K8-IG, adds an isolated-ground terminal so the charging output can be kept electrically separate from the alternator case and engine block. It uses a large-case, positive field excitation design with dual internal cooling fans, sealed heavy-duty bearings and a ventilated cast-aluminium case with a clear-anodised finish, mounting on a 4 inch dual-foot saddle in the J-180 style with a K8 serpentine pulley and handling up to 11 horsepower of power take-off. It runs exclusively with the Balmar MC-620 multi-stage regulator, which requires its own 12-volt supply; the alternator will not operate without it, and for lithium banks the MC-620 disables charging at or below 0 C using the MC-TS-A and MC-TS-B temperature sensors.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272793567572,"sku":"96-48-100-K8-IG","price":5024.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/9f09fe0b-7995-4e82-978a-418df0561a10.jpg?v=1783590698"},{"product_id":"48-volt-100-amp-alternator-4-8kw-k8-pulley-j-180-4-dual-foot-mounting-standard-case-ground","title":"48 Volt, 100 Amp Alternator (4.8kW), K8 Pulley J-180 4\" Dual Foot Mounting - Standard\/Case Ground","description":"The Balmar 96-48-100-K8 is a 100-amp, 48-volt marine alternator that delivers 4.8 kW of charging power, part of the 96-Series that Balmar built for the growing number of 48-volt battery banks and inverter systems. A 48-volt architecture allows more efficient chargers and inverters, smaller cable sizes and high alternator output in a sensible package, and it suits lithium banks that accept very high charge rates. With a turn-on threshold near 2,250 RPM, the 96-Series begins making power early in the rev range, limiting the need for complex pulley schemes or over-throttling the engine at idle.\n\nThe 96-48-100-K8 has a large-case, positive field excitation design with dual internal cooling fans, sealed heavy-duty bearings and a ventilated cast-aluminium case with a clear-anodised finish. It mounts on a 4 inch dual-foot saddle in the J-180 style and drives a K8 serpentine pulley, handling up to 11 horsepower of power take-off. This version uses a case-ground termination. It operates exclusively with the Balmar MC-620 multi-stage regulator, which itself requires a 12-volt supply and cannot be powered from the 48-volt source; the alternator will not run without it. For lithium charging the MC-620 disables output at or below 0 C, using the MC-TS-A and MC-TS-B temperature sensors.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272793928020,"sku":"96-48-100-K8","price":4579.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/3772244b-4336-4261-b78e-c0418f161e53.jpg?v=1783590699"},{"product_id":"pulley-k6-2-26-serpentine-17mm-bore-for-yanmar-common-rail-engines","title":"Pulley, K6 2.26\" Serpentine, 17mm Bore for Yanmar Common Rail Engines","description":"The Balmar 61-0050 is a six-groove K6 serpentine alternator pulley with a 17mm bore, machined from anodised steel for corrosion resistance. Its 2.26 inch outside diameter is sized specifically for Yanmar common-rail engine installations, where it pairs with Balmar common-rail charging systems to give the correct belt speed and output.\n\nA serpentine belt wraps around six grooves for far more contact area than a vee pulley, letting the alternator carry high power loads with less slip and noise. Because common-rail Yanmar installations are geometry-sensitive, confirm this pulley matches your engine and charging kit before fitting.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272807887188,"sku":"61-0050","price":92.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/ef686b18-813e-4aa9-ad96-520a84d08c35.jpg?v=1783590728"},{"product_id":"12-98-air","title":"12-98-AIR","description":"The Balmar 12-98-AIR is an air intake accessory for Balmar's 98-Series high-output alternators. It mounts on the back of the alternator and allows fresh air to be ducted to the unit from a remote blower, giving enhanced cooling in hot or enclosed engine spaces where a large alternator can otherwise run warm. Better cooling helps the alternator hold its output and protects the windings and diodes over long charging runs.\n\nSupplied as a kit with the necessary mounting hardware, the 12-98-AIR is intended for installations where forced-air cooling is beneficial, such as tightly packed engine rooms or high-duty-cycle charging. It is an accessory for the 98-Series alternator and is not a standalone charging device.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272807919956,"sku":"12-98-AIR","price":181.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/f18a4a35-f4df-4277-9419-79fb366aa598.png?v=1783590728"},{"product_id":"pulley-single-2-7-x-1-2-deepv-17mm-bore","title":"Pulley, Single, 2.7\" x 1\/2\" DeepV, 17mm Bore","description":"The Balmar 61-0010 is a single-groove DeepVee alternator pulley with a 17mm bore, machined from anodised steel for corrosion resistance. With a 2.7 inch outside diameter and a 1\/2 inch belt groove, it is the standard single-vee (SV) pulley supplied on Balmar 6-Series alternators and accepts a common 1\/2 inch vee belt.\n\nThe DeepVee groove seats the belt deeply for secure grip on single-belt installations. A single vee pulley is suited to lower power draws, so for high-output charging Balmar recommends stepping up to a dual-vee or serpentine pulley. Confirm belt width and pulley diameter against your engine before fitting.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272808214868,"sku":"61-0010","price":94.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/d8169fd3-79ab-4f2b-b7e6-bf674382a8ce.png?v=1783590729"},{"product_id":"rectifier-kit-6-series-12v-smart-ready-isogrd","title":"Rectifier Kit, 6 Series, 12V, Smart Ready, IsoGrd","description":"This Balmar rectifier kit is a genuine service part for rebuilding Balmar 6-Series alternators. The rectifier converts the alternator's AC stator output into the DC current your batteries need, and over time heat and vibration can degrade it, so replacing the rectifier is a common step when servicing or repairing a high-output alternator. This kit is specified for 12-volt, Smart Ready, isolated-ground 6-Series alternators, restoring reliable charging output when fitted by a competent alternator technician.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272808247636,"sku":"17-A-201-1","price":70.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/c9e80f4f-adfd-4880-86a9-9543bec370b7.png?v=1783590729"},{"product_id":"pulley-yanmar-jh-idler-pulley","title":"Pulley, Yanmar, JH Idler Pulley","description":"The Balmar 48-YP-IDL is an AltMount serpentine idler pulley for Yanmar JH engines, with a 2.75 inch diameter. It is used as part of a Balmar AltMount serpentine conversion on JH-series installations to route and tension the serpentine belt and keep it clear of adjacent engine components.\n\nAn idler pulley maintains correct belt wrap and tension across the drive, helping the serpentine belt run true and quietly. Fitting this idler on some engines may call for a longer serpentine belt, so check belt length against your specific installation.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272808378708,"sku":"48-YP-IDL","price":382.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/102c6d7d-34a6-43b9-8fb3-40cd3d163efd.png?v=1783590667"},{"product_id":"pulley-k-8-2-4-serp-17mm-bore-short-std","title":"Pulley, K-8 2.4\" (Serp), 17mm Bore, Short (STD)","description":"The Balmar 1310 is an eight-groove K8 serpentine alternator pulley with a 17mm bore, machined from anodised steel for corrosion resistance. It is the standard short-shaft (STD) serpentine pulley fitted to Balmar 6-Series and 94-Series alternators, and its 2.4 inch outside diameter is chosen to deliver the correct belt speed and charging output for those charging systems.\n\nA serpentine belt gives far greater contact area between belt and pulley than a single or dual vee, allowing the alternator to transfer much higher power loads without belt slip, dust or noise. Correct pulley selection is essential to matching alternator output to your engine, so confirm groove count and belt width against your existing installation before ordering.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272809066836,"sku":"1310","price":147.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/950a250f-ec39-44ec-8757-e55961ae80f2.png?v=1783590667"},{"product_id":"alternator-94-series-210a-12v-singleft-2in-dualpul","title":"Alternator, 94 Series, 210a, 12v, SingleFT, 2in, DualPul","description":"The Balmar 94-12-210-IG is a 210-amp, 12-volt large-case marine alternator built to support substantial house battery banks of up to roughly 800 amp hours. Designed for mid-duty-cycle service on diesel engines, it carries extra heavy-duty custom-wound stators, high-amperage diode packs and heavy-duty brushes, all housed in a ventilated cast-aluminium case with a corrosion-resistant white powder-coat finish. From ocean racers to commercial fishing and patrol vessels, the 94-Series has a proven record supporting demanding electrical loads in tough marine conditions.\n\nThe 94-12-210-IG uses a 2 inch single-foot spindle mount in the Delco style, with a dual half-inch deep-vee pulley and an isolated-ground terminal that provides sure continuity to system ground. It is engineered for use with an external Balmar multi-stage voltage regulator, so charging voltage can be tailored to the battery chemistry for the best balance of speed and safety. Bi-directional external cooling fans, sealed ball bearings and a threaded M8 stud positive output round out a design built to USCG Title 33 ignition-protection standards. This model is part of the 94-Series, which Balmar discontinued in 2024.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272809197908,"sku":"94-12-210-IG","price":2233.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/d7337022-01e1-4d26-9516-5f7cb230feff.png?v=1783590667"},{"product_id":"pulley-k-8-2-4-serp-17mm-bore-cummins","title":"Pulley, K-8 2.4\" (Serp), 17mm Bore, (Cummins)","description":"The Balmar 1311 is an eight-groove K8 serpentine alternator pulley with a 17mm bore, produced in anodised steel to resist corrosion in the marine environment. It shares the 2.4 inch outside diameter of the standard 1310 pulley but is configured for Cummins engine installations using Balmar 6-Series and 94-Series alternators.\n\nSerpentine drive provides greater belt-to-pulley contact than a vee pulley, letting the alternator carry higher power loads while running quieter and cleaner. Confirm the pulley geometry suits your engine and belt before fitting, as pulley choice directly affects charging output.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272809263444,"sku":"1311","price":147.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/a937265f-bb82-4e94-83e7-56c283ee7aa1.png?v=1783590732"},{"product_id":"pulley-k-8-2-7-serp-875-bore-cummins","title":"Pulley, K-8 2.7\" (Serp), .875\" Bore, (Cummins)","description":"The Balmar 5537-B is an eight-groove K8 serpentine alternator pulley with a 0.875 inch bore, machined from anodised steel for durability in marine service. Its 2.7 inch outside diameter and small-case bore make it the correct serpentine pulley for Balmar 95-Series, 97-Series, 97EHD-Series and 98-Series alternators, and it is well suited to Cummins engine applications.\n\nThe K8 serpentine profile spreads the drive load across eight grooves, giving the belt more contact area than a vee pulley and allowing the alternator to handle higher output without slipping. Match the pulley diameter and bore to your alternator and engine to keep belt speed and charging output correct.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272809820500,"sku":"5537-B","price":108.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/3401f350-d1de-4d4d-af78-6a9912aae4a2.png?v=1783590733"},{"product_id":"alternator-94-series-140a-24v-singleft-2in","title":"Alternator, 94 Series, 140a, 24v, SingleFT, 2in","description":"The Balmar 94-24-140-IG is a 140-amp, 24-volt large-case marine alternator built for mid-duty-cycle service on diesel engines and sized to support 24-volt house banks of up to roughly 400 amp hours. It shares the rugged construction of the 94-Series: extra heavy-duty custom-wound stators, high-amperage diode packs and heavy-duty brushes in a ventilated cast-aluminium case with a corrosion-resistant white powder-coat finish. The series has a long track record on ocean racers, commercial fishing boats and patrol vessels operating in demanding conditions.\n\nThe 94-24-140-IG uses a 2 inch single-foot spindle mount in the Delco style and an isolated-ground terminal that provides sure continuity to system ground. It is engineered for use with an external Balmar multi-stage voltage regulator, allowing charging voltage to be matched to the battery chemistry for safe, efficient replenishment. Bi-directional external cooling fans, sealed ball bearings and a threaded M8 stud positive output complete a design built to USCG Title 33 ignition-protection standards. This model belongs to the 94-Series, which Balmar discontinued in 2024.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272809886036,"sku":"94-24-140-IG","price":2377.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/f2a3d9d3-f167-4d03-b790-9c569faa0fad.png?v=1783590732"},{"product_id":"alternator-97xd-series-240a-12v-saddle-mount-dual-foot","title":"Alternator, 97XD Series, 240A, 12V, Saddle Mount (Dual Foot)","description":"The Balmar 97XD-12-240-IG is an extra-large case, high-output marine alternator rated at 240 amps on a 12 volt system. Part of Balmar's heavy-duty 97-Series, it uses the latest braided-stator technology to generate exceptional charging power at low engine speeds, making it ideal for large diesel installations such as Caterpillar, Cummins, MTU and John Deere engines that must service extensive house battery banks. External multi-stage regulation lets you tailor the charge profile to the battery chemistry for safe, efficient replenishment.\n\nBuilt for extended duty cycles, the 97XD-12-240-IG mounts on a 4 inch dual foot (J-180 style) saddle and ships with a K6 serpentine pulley as standard (K8 available on request). Isolated ground termination provides a dependable, dedicated return path to system ground, and the alternator is rated for operation up to 8,000 rpm. It requires a Balmar external voltage regulator and carries USCG Title 33 ignition protection compliance.","brand":"Balmar","offers":[{"title":"Default Title","offer_id":56272810344788,"sku":"97XD-12-240-IG","price":2271.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/293baa49-5f34-4d8c-8bf0-1d25b2de8279.png?v=1783590702"}],"url":"https:\/\/hme.sprechen.dev\/collections\/alternators-regulators.oembed?page=4","provider":"Hudson Marine Electronics","version":"1.0","type":"link"}