For powering the STIHL's cordless range. LED charge level indicator. The AP 300 is 36v / 6 Ah & is Stihl’s most powerful battery. Machine run-times will vary depending on the tools & working conditions. Charging Time (to 100% capacity):AL 101 charger: 250 mins AL 300 charger: 75 mins AL 500 charger: 35 mins Specification: Battery Type: Lithium Ion Battery Battery Voltage: 36 V Battery Capacity: 6.0 Ah / 227 Wh Weight: 1.7kg Warranty: 2 year