Featuring 36V output, 4.0Ah capacity and 144Wh of stored energy, the AK 20 provides an ideal balance between runtime, weight and performance, making it suitable for more demanding lawn care, hedge trimming, pruning and garden maintenance applications.

Part of the STIHL AK System, the battery is designed to power a wide range of compatible cordless tools using a single interchangeable battery platform, providing flexibility and convenience across multiple machines.

The integrated LED charge level indicator allows users to quickly check the current battery status at the touch of a button, helping reduce unexpected downtime and making job planning easier.

A built-in cold start function ensures reliable operation in low temperatures by warming the battery cells in a controlled manner before delivering full power. This allows the AK 20 to operate in temperatures down to -20°C, making it suitable for year-round use.

The AK 20 also features STIHL’s advanced Intelligent Battery Management System, which delivers a consistent level of power throughout the discharge cycle. Unlike many cordless systems that gradually lose performance as the battery drains, STIHL’s Constant Power technology maintains strong performance from full charge right through to low battery levels.

Compatible with the STIHL AL 101, AL 301 and AL 501 chargers, the STIHL AK 20 is an excellent choice for users seeking longer runtimes and dependable cordless performance.