Stihl AP 300 S BatteryAP 300 S Battery: Lithium Ion 281 Wh battery with STIHL connected 36 V, 7. 2 Ah Lithium Ion battery. The AP 300 S is a high capacity battery that powers tools within the STIHL AP System. With an energy capacity of 281 Wh, this battery offers an impressive 25% increase in capacity compared to the AP 300, meaning this battery will consistently power AP System tools for longer. The battery has an integrated LED charge indicator, clearly displaying as and