Husqvarna BLi950X Battery - Highly durable 36V backpack battery with 31.1 Ah capacity, for maximum runtime in demanding professional applications.Husqvarna BLi950X is a heavy duty 36V backpack battery that offers maximum runtime and by this high productivity. Truly durable, high capacity (31. 1 Ah) battery with robust design that guarantees for daily outdoor work in all weather. LED charge indicators on battery pack, plus exact battery charge percentage readable from adapter simplifies work planning for the operator. Harness not included. Compatible Chargers: 40 C500X 40 C750X 40 C80 40 C1000X4