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Mastervolt Lithium Ion Battery 12v/5000Wh

Mastervolt Lithium Ion Battery 12v/5000Wh
Our Price:  £6,643.99(Inc. 20% VAT)

Part Number:  66015000
Brand:  Mastervolt


Standard UK Delivery for this Product is 5-10 days.

Mastervolt Lithium Ion Battery 12v/5000Wh

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

The Mastervolt Li-ion battery is equipped with an integrated Battery Management System with active cell balancing. Ensuring that the available energy is automatically divided between cells guarantees efficient and safe functioning of the battery.

As speed and performance are crucial aspects, a Lithium Ion battery – which takes up 70% less weight than similar lead acid batteries – offers considerable benefits. A vessel or vehicle with a capacity of 20 kWh on board, can easily save up to 500 kg and achieve a substantially better performance.

Mastervolt Lithium Ion batteries have a lifespan of over 2000 cycles at a depth of discharge (DOD) of 80%. This is three times longer than lead acid batteries thanks to features such as battery management, the almost complete absence of self discharge and the minimal build-up of the infamous ‘memory effect’.

The Lithium Ion Ultra batteries are ideal for electric and hybrid applications, and can be connected in parallel unlimited. The built-in common-rail technology offers an easy series connection of multiple batteries.

The elegant design of the Li-ion Ultra in the characteristic Mastervolt colours includes two integrated handles with a recess for the correct and practical installation of the cables. As the battery poles are easily accessible and completely protected, extra isolation covers are not needed.


 Nom. battery voltage 13.25 V
 Battery capacity range 360 Ah
 Nom. battery power 5 kWh
 Battery monitoring integrated
 Battery terminals M8
 MasterBus powering yes
 Max. outer dimensions (incl. terminals/grip handles), lxwxh

622x197x355 mm

24.5 x 7.8 x 14.0 inch


58 kg, 127.9 lb


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