Dependable battery with increased performance over the previous model.

The redesigned AK 20 battery features increased performance over the previous model and runs at full power over the entire battery run time. Easy-to-read LED display lights indicate battery charge. Compact and lightweight, this battery provides optimal power and performance for your AK System tools with minimal loss of charge during storage. Ideal for select AK System tools, the AK 20 battery provides optimal run times for the MSA 120 C-B, FSA 60 R, HLA 56, HTA 50, BGA 57, and SHA 56.

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AK 20 Lithium-Ion Battery Features & Benefits

  • Constant Power
    CONSTANT POWER, REGARDLESS OF BATTERY CHARGE STATUS. With other brands of battery tools, the performance usually decreases during work as the battery discharges. This is not the case with STIHL cordless power tools with CONSTANT POWER. Thanks to the intelligent electronics, your STIHL power tool works with consistently high power.

AK 20 Lithium-Ion Battery Specs & Compare

Rated voltage36 V
Max. voltage40 V
Battery cell technologyLITHIUM-ION
Battery weight1.2 kg
Rated capacity as per IEC 619604 A·h