36 V lithium-ion battery with an energy content of 72 Wh.Special featuresCompact lithium-ion battery compatible with the STIHL COMPACT Battery System With a capacity of 72 Wh Autonomy depends on the machine used With charge indicator (LED) Compatible with chargers AL 101, AL 100, AL 300 and AL 500 Suitable forHsa 56 Hedge trimmer Fsa 56 Trimmer Bga 56 Leaf blower Rma 235 Lawn mower Rma 339C Lawn mower Hla 56 Pole pruner Msa 120 C-B Chainsaw Msa 140 C-B Chainsaw Technical specificationsBattery weight - 0.8 kg Energy content - 72 Wh  Nominal voltage - 36 V Battery cell technology - LITHIUM-ION