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Lithium Ion Ultimate 12/2500
Cat. No. MV-66012500
Weight 68.3 lbs

Lithium Ion batteries have a high energy density and are perfect for cyclic applications. They offer savings of up to 70% in volume and weight compared to traditional lead-acid batteries, with three times as many charging cycles (2000 full cycles). Another major benefit of the Mastervolt Li-ion battery is that it is equipped with a Battery Management System (BMS), which automatically compensates for any imbalance between the cells. This guarantees you a constant high capacity and longer battery lifespan. The Lithium Ion Ultra series includes integrated battery monitoring.

Having perfected the legendary Lithium Ion battery in a few key areas, Mastervolt has developed an unrivalled 2500 or 5000 Wh powerhouse. The MLI Ultra has an ultra-long lifespan that offers over 2000 cycles; a recharge time of less than an hour; active cell balancing for efficient and safe use of the Li-ion cells; and integrated battery monitoring to further simplify your system. What’s more, the Ultra communicates directly with your Mastervolt battery charger via MasterBus to ensure the best possible recharging. Add in the fact that it takes up 70% less space and weight compared to lead acid batteries, and you’ll see why this battery is the best choice. 

  • Highly advanced technology.
  • Multifunctional battery of 2.5 kWh or 5 kWh.
  • Saves up to 70% in space and weight.
  • Three times the lifespan of traditional batteries (2000 cycles).
  • Ultra-fast charging and discharging.
  • High efficiency.
  • MasterBus communication with every Mastervolt battery charger.
  • Integrated Battery Management System (BMS) and monitoring.
  • Series balancing technology optimizes string connection.
  • Safest Lithium Ion technology available.
  • Tested and certified according to UN38.3.
  • Two year warranty.


 General specifications 
 Nom. battery voltage 13,25 V
 Battery capacity range 180 Ah
 Nom. battery power 2,5 kWh
 Battery monitoring integrated
 Battery terminals M8
 MasterBus powering yes
 Max. outer dimensions (incl. terminals/grip handles), lxwxh<>339 x 197 x 355 mm
13.3 x 7.8 x 14.0 inch
 Weight<>31 kg
68.3 lb
 Technical specifications 
 Technology LiFePO4
 Parallel connection yes, unlimited
 Series connection yes, up to 10 batteries (series balancing up to 2 batteries)
 Switch off relay controls integrated
 Mandatory safety relay yes, product code 79007700

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