Technical data: Voltage: 10.8 Volt, Capacity: 2600 mAh, Power: 28 Wh, Type: Li-Ion, Color: Black. The AS 2 battery is versatile and compatible with almost all devices in the STIHL AS system. It is compatible with the HSA26 and GTA26 devices. An exception is the STIHL battery hedge trimmer HSA 25. Compatible charger: STIHL standard charger AL 1. Our offer includes a high-quality battery that is ideal as a replacement for your old or defective tool battery, but also serves as an additional spare battery for on-the-go use. Warning: Batteries that come with a charger should only be charged with that charger. Only new quality brand cells are used. A protective electronics system and the use of high-quality components provide a high level of safety against overcharging and short circuits. This allows the battery to achieve a higher number of charge-discharge cycles, resulting in a longer lifespan for your new battery.