The STIHL AK 20 battery is a light and powerful lithium-ion battery, designed for use with all machines in the STIHL AK system. With a nominal voltage of 36 V, an energy content of 144 Wh, and practical charge indicators, this battery offers excellent autonomy and versatility for all gardening tasks. Special features: Light 1.2 kg lithium-ion battery with 144 Wh energy content, compatible with all machines in the STIHL AK battery system, 4 LED indicators for charge status and energy level, long service life and high autonomy for demanding gardening jobs, rechargeable with standard charger STIHL AL 101 or STIHL quick charger AL. Other AK batteries in the series: AK 10 (72 Wh, 0.8 kg), AK 30 (180 Wh, 1.3 kg). Technical data: Nominal voltage 36 V, battery cell technology Lithium-ion, battery weight 1.2 kg, nominal capacity according to IEC 61960 4.0Ah, nominal cell capacity (according to manufacturer's specifications) 2 AH. Standard delivery: 1 STIHL AK 20 Battery