#66013000 Mastervolt MLI Ultra 12/3000

Code: #66012750
  • Heavy Duty, Extreme Performance

    • Extreme performance, heavy duty Lithium Ion batteries.
    • BMS and LiFePO4 chemistry according to highest safety standards.
    • Saves up to 70 % in space and weight.
    • More than three times the life span of traditional batteries.
    • Fast charging within 60 minutes.
    • Self-learning balancing algorithm for optimized performance and longer battery lifetime.
    • High charge / discharge rate up to 2.5 C.
    • Integrated battery monitoring (Ah consumed, state of charge).
    • Series connection up to 10 batteries possible.
    • MasterBus communication with any Mastervolt battery charger.
    • CZone and NMEA 2000 compatible.
    • Waterproof electronics compartment.

3,460.00 3,249.00 exc. VAT

In Stock


For additional safety, Mastervolt stipulates the use of a safety relay as mandatory part of the battery installation.
  • safety relay 12 volt, product code 7700B-BSS

Mastervolt MLI Ultra 12/3000

The MLI series delivers extreme Lithium Ion performance even under the harshest conditions, such as high charge and discharge currents, wet environments, mechanical shocks or vibrations. This is realized by combining our best Lithium-Iron Phosphate (LiFePO4) cells with a proprietary Battery Management System (BMS) inside a sturdy, waterproof housing.

The sophisticated Mastervolt BMS ensures optimal use of each individual cell. Integrated battery monitoring provides you with accurate and up-to-date information on the state of your battery. Integrated NMEA 2000, CZone or MasterBus communication allows complete system integration, to ensure the best possible recharging, while maximizing the lifetime of your battery.

Self-learning balancing algorithm

The MLI Ultra batteries are equipped with a self-learning balancing algorithm that predicts the behavior of each individual battery cell and balances proactively, resulting in a faster and more efficient charge cycle. The self-learning system eliminates unnecessary stress on the cells, resulting in an even longer Battery Cycle Life.

General specifications
Nominal battery voltage13.2 V
Nominal battery capacity200 Ah
Nominal battery energy capacity2750 Wh
Cycle life3500 cycles at 80 % DOD at 25 ⁰C, max. C3 charge and C2 discharge
Max. charge current200 A
Recommended charge current≤ 60 A
Max. continuous discharge current500 A
Continuous charge current200 A
Peak discharge current1800 A (10 sec.)
Battery monitoringintegrated
MasterBus communicationyes
CZone / NMEA 2000 communicationyes
Mounting positionupright (recommended) or either long side
Max. outer dimensions (incl. terminals/grip handles), lxwxh341 x 197 x 355 mm
13.4 x 7.8 x 14.0 inch
Product weight27 kg
59.5 lb
Shipping weight30 kg
66.1 lb
ComplianceCE, E-Mark / DNV-GL planned for end 2021
Technical specifications
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 to prevent access to high voltage parts
Protectionsover voltage, under voltage, over temperature
Safety relayto be added mandatorily, product code 7700B-BSS
Safety relay controlsintegrated


Additional information


Batteries, Lithium batteries, Mastervolt