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Mastervolt Li-ion battery - MLS 12/260
Cat. No. MV- 65010020
Weight 6.8 lbs

The MLS series is the MLI Ultra’s smaller brother, for use in a small system where reducing weight/volume and/or increasing cycle life is key. It is specifically designed to be as easy as possible to install. The MLS series comes with an integrated safety disconnect. This saves installation and commissioning time, but reduces the maximum allowable charge/discharge rate. While the MLS series is a little less heavy duty than the MLI Ultra series, it gives an ideal entry to Lithium Ion technology. Perhaps consider replacing your existing lead-acid battery?

  • Easy entry into Lithium Ion technology.
  • Drop-in replacement for lead-acid batteries.
  • Saves up to 70 % in space and weight.
  • Three times the lifespan of traditional batteries (2000 cycles).
  • High cycle efficiency.
  • Fast charging up to one hour.
  • High discharge rate up to 1C.
  • Integrated Battery Management System (BMS) with passive balancing.
  • Integrated automatic safety disconnect.
  • Safest Lithium Ion chemistry available (LiFePO4).
  • Tested and certified according to UN38.3.
  • Two year warranty.


General specifications
Nominal battery voltage12 V
No-load voltage, fully charged12,8 V
Nominal battery capacity20 Ah
Nominal battery energy capacity256 Wh
Max. continuous discharge current20 A (1 C)
Max. short discharge currentfor 30 seconds 40 A (2 C)
Peak discharge currentfor 2 seconds 85 A (4 C)
Cycle life~2000 at 80 % DoD
Max. charge current20 A (1 C)
Battery terminalsM5
Mounting positionupright or either long side
Max. outer dimensions (incl. terminals/grip handles), lxwxh180 x 76 x 161 mm
7.1 x 3.0 x 6.3 inch
Weight3,1 kg
6.8 lb
Technical specifications
Battery chemistryLithium Iron Phosphate
Protection degreeIP65 (electronics cabinet)
Parallel connectionyes, max. 3 batteries
Series connectionno
Protectionsover voltage, under voltage, over temperature
Safety disconnectyes, electronic

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