High capacity 36 V, 41.2 Ah Lithium-Ion backpack battery with long working times. Includes USB port and Bluetooth® interface for connection with STIHL connected. Sturdy housing with integrated carry handle and charge-level indicator (six LEDs). Can be directly connected with RMA 765 V. In combination with the AR L carrying system and AR L connecting cable, suitable for tools with a socket and in combination with an AP adapter for tools with a battery slot. Can be used in the rain. The battery has an integrated LED charge indicator, clearly displaying as and when the battery needs charging. Compatible with the AL 101, AL 300 and AL 500 charger unit.