Victron
Victron Skylla-TG 48/50 Battery Charger - 230 VAC
£1,554.00
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SDTG4800501
The Victron Skylla-TG 48/50 is a 48 V, 50 A marine battery charger with a 230 VAC input. It uses IUoUo three-step charging with temperature compensation and a stabilised output for reliable charging of 48 V banks.
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Collection or delivery in 1-2 weeks
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Victron Skylla-TG 48/50 is a robust, microprocessor-controlled 48 V marine charger that delivers up to 50 A from a 230 VAC supply. The stabilised output also allows it to be used as a DC power supply.
Charging follows an IUoUo three-step characteristic (bulk, absorption, float) that protects the batteries against overcharging. The supplied temperature sensor reduces the charge voltage as the battery temperature rises, while battery voltage sense compensates for cable voltage loss so the batteries always receive the correct voltage.
Housed in a sea-water-resistant aluminium enclosure and force-cooled to an IP21 rating, the 48/50 is built for the marine environment. Because the float stage prevents overcharging, the charger can remain connected to the batteries throughout seasonal storage.
PRODUCT DETAILS
- 48 V charging at up to 50 A from a 230 VAC supply
- IUoUo three-step charge characteristic with selectable 4, 8 or 12 hour absorption
- Supplied battery temperature sensor for temperature-compensated charging
- Battery voltage sense to compensate for cable voltage loss up to 2 V
- Can be used as a stabilised DC power supply
- Sea-water-resistant aluminium case, force-cooled, IP21 rated
- Potential-free alarm contact and remote on/off capability
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Key specifications
| Battery voltage | 48 V |
| Charge current | 50 A |
| Number of outputs | 1 |
| Maximum efficiency | 85 % |
Charging
| Charge algorithm | IUoUo (three step: bulk, absorption, float) |
| Charge voltage 'absorption' | 57 V |
| Charge voltage 'float' | 53 V |
| Recommended battery capacity | 250 - 500 Ah |
| Temperature compensation | External battery temperature sensor (supplied) |
Input
| AC input voltage range | 185 - 264 VAC (230 V nominal) |
| DC input voltage range | 180 - 400 V |
| Input frequency | 45 - 65 Hz |
| Maximum input current setting | 16 A at 60 V (full output) |
| Power factor | 1 |
Connectivity & control
| Battery temperature sensor | Yes, external sensor supplied |
| Programmable relay | Potential-free alarm contact 60 V / 1 A (1x NO and 1x NC) |
| Battery voltage sense | Yes, compensates up to 2 V cable loss |
| Remote on/off | Yes, via remote panel or switch |
Protection
| Protection | Output short circuit, battery reverse polarity detection, battery voltage too high, temperature too high |
Environmental
| Operating temperature | -40 to +50°C (full output up to 40°C) |
| Cooling | Forced air cooling |
| Humidity | Max 95% (non-condensing) |
Physical
| Colour | Blue (RAL 5012) |
| Material | Aluminium, sea-water resistant, epoxy powder coated |
| Protection category | IP21 |
| Terminals | M8 studs (battery), screw-clamp 2.5 mm² / AWG 6 (AC) |
| Weight | 10 kg |
| Dimensions (h x w x d) | 368 x 250 x 257 mm |
Conformance
| Safety | EN 60335-1, EN 60335-2-29 |
| Emission / Immunity | EN 55014-1, EN 55014-2, EN 61000-3-2, EN 61000-3-3 |
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What battery voltage and charge profile does the 48/50 use?
The 48/50 charges a 48 V bank using an IUoUo three-step characteristic (bulk, absorption, float) with an absorption voltage of 57 V and a float voltage of 53 V. The absorption time is selectable at 4, 8 or 12 hours.
Can the charger stay connected to the batteries permanently?
Yes. The three-step IUoUo algorithm drops to a float voltage of 53 V once the batteries are charged, so the unit can remain connected during seasonal storage without overcharging the batteries.
How does the charger compensate for temperature and cable losses?
A battery temperature sensor is supplied and reduces the charge voltage as the battery temperature rises. Battery voltage sense measures the voltage at the battery and compensates for up to 2 V of cable voltage loss.
Can the Skylla-TG 48/50 be used as a DC power supply?
Yes. The microprocessor-controlled output is stabilised, so the 48/50 can be used as a DC power supply as well as a battery charger.
What charge current does the 48/50 deliver?
The Skylla-TG 48/50 delivers up to 50 A to a 48 V battery bank from a 230 VAC supply.
