Husqvarna 40-B540X is a 36V battery with 15 Ah capacity that offers outstanding runtime and performance for highly demanding professional applications. Like all Husqvarna BLi-X batteries, it’s built with efficient high-power cells. 40-B540X provides best weight-to-capacity ratio within the Husqvarna 36 V battery segment. The robust design fulfils IPX4 for all-weather use with all professional Husqvarna 36V equipment. The ActiveCool system cools down the battery during both operation and charging. Compatible with all products within the flexible Husqvarna BLi-X 36 V battery system with battery-through-body design. Ready to connect with Husqvarna Fleet Services™.