The Husqvarna BLi200X is a powerful 36V Lithium-Ion PRO battery with optimised performance and excellent power to weight ratio for demanding applications in all weather conditions. It is designed for domestic, heavy-domestic, professional and continuous use alike. It is ideally suited for use with Husqvarna 500 Series battery powered top-handle chainsaws (T540/T540i XP) in particular and other Husqvarna battery products whose performance would benefits from the faster and more consistent power generation produced by the BLi200X from initial start-up to the end of runtime. The Bli200X can also be used to power Husqvarna 100, 200 & 300 Series battery powered products too. It has a robust construction and features an intuitive 4-LED charge indicator, active cooling together with an integral battery management system for extended product life. BLi200X (Li-ion) - 36V. 5.2Ah. 180Wh. Up to 1500 cycles. 1.3kg. Optimised performance Continuous use All weather use Active cooling Batt