Mastervolt

Mastervolt MLI Ultra Lithium Ion Battery (12V / 460Ah / 6000Wh)

£6,678.82
Tax included.
66016000
Heavy-duty 12V 460Ah (6000Wh) LiFePO4 lithium battery with integrated BMS, monitoring and a self-learning balancing algorithm. Ideal for running heavy loads, saving up to 70 per cent in space and weight, with MasterBus, CZone and NMEA 2000 communication. A safety relay must be fitted as a mandatory part of the installation.

Available for collection or delivery in ~1 day

Pickup available at Mercury Yacht Harbour

Usually ready in 2-4 days

Description

The Mastervolt MLI Ultra 12/6000 is a heavy-duty 12V Lithium Ion battery engineered for ultimate performance under the harshest conditions, including high charge and discharge currents, wet environments, mechanical shock and vibration. It pairs premium Lithium Iron Phosphate (LiFePO4) cells with a proprietary Mastervolt Battery Management System inside a sturdy, waterproof housing. With 460Ah of capacity and 6000Wh of energy, it is ideal for running heavy loads for long periods and delivers more than three times the lifespan of traditional batteries while saving up to 70 per cent in space and weight.

A self-learning balancing algorithm proactively balances each cell for faster, more efficient charging and longer service life, with fast charging possible within 60 minutes. Integrated battery monitoring tracks consumed Ah and state of charge, and MasterBus, CZone and NMEA 2000 communication allows full system integration. For safety, Mastervolt requires a safety relay to be fitted as a mandatory part of the installation.

PRODUCT DETAILS

  • Heavy-duty Lithium Iron Phosphate (LiFePO4) cells with proprietary Mastervolt BMS
  • 12V nominal, 460Ah capacity, 6000Wh nominal energy
  • More than three times the lifespan of traditional batteries; saves up to 70 per cent in space and weight
  • Self-learning balancing algorithm for optimised performance and longer life
  • High charge / discharge rate up to 2.5 C; fast charging within 60 minutes
  • Integrated battery monitoring (Ah consumed, state of charge)
  • Series connection up to 10 batteries; unlimited parallel connection
  • MasterBus, CZone and NMEA 2000 communication
  • Waterproof electronics compartment; safety relay mandatory

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General

Nominal battery voltage12 V
Nominal battery capacity460 Ah
Nominal battery energy capacity6000 Wh
Cycle life3500 cycles at 80 % DOD at 25 °C, max. C/3 charge and C/2 discharge
Max. charge current460 A
Recommended charge current≤ 160 A
Recommended continuous discharge current≤ 300 A
Maximum discharge current (20 mins @ 25 °C)500 A
Peak discharge current1800 A (10 sec.)
Battery monitoringIntegrated
MasterBus communicationYes
CZone / NMEA 2000 communicationYes
TerminalsM8
Mounting positionUpright (recommended) or either long side
ComplianceCE, E-Mark, RVIA compliant

Technical

Battery chemistryLithium Iron Phosphate
Protection degreeIP65 (electronics cabinet)
Parallel connectionYes, unlimited
Series connectionYes, up to 10 batteries; systems over 48 V require a separate battery box
ProtectionsOver voltage, under voltage, over temperature
Safety relayTo be added mandatorily; controls integrated

Physical

Max. outer dimensions (l x w x h, incl. terminals/grip handles)622 x 197 x 355 mm (24.5 x 7.8 x 14.0 inch)
Product weight46.7 kg (103.0 lb)

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Does the MLI Ultra 12/6000 require a safety relay?
Yes. For additional safety, Mastervolt stipulates the use of a safety relay as a mandatory part of the battery installation. The relay controls are integrated in the battery.
How many MLI Ultra 12/6000 batteries can be connected together?
Parallel connection is unlimited and up to 10 batteries can be connected in series. Systems over 48 V require a separate battery box to prevent access to high-voltage parts.
What is the MLI Ultra 12/6000 best suited to?
With 460Ah and 6000Wh of energy it is ideal for running heavy loads for long periods, while saving up to 70 per cent in space and weight compared with traditional batteries.
How does it communicate with other Mastervolt equipment?
It offers integrated MasterBus, CZone and NMEA 2000 communication, allowing full system integration with Mastervolt chargers and monitoring displays.
How long does the MLI Ultra 12/6000 last?
It is rated for 3500 cycles at 80 per cent depth of discharge, giving more than three times the lifespan of traditional lead-acid batteries.