Battery, Battery Capacity 31.1 Ah, Battery Chemistry Li-Ion, Charger Included No, Number of Batteries Included 1, Voltage 36V DC, Cordless Tool Kit Contents (1) Battery, Charger Input Voltage Not Applicable, Cordless Tool Battery Platform 525i Series, Overall Height 4 3/4 in, Overall Width 14 1/2 in, Wireless Tracking System Husqvarna Fleet Services Enabled