The Husqvarna BLi20 is a high-performance 36V 4.0Ah Lithium-ion battery, part number 967091701, designed for professional and demanding use with Husqvarna's 36V battery-powered equipment. This robust battery provides excellent runtime and power, ensuring consistent performance across various applications. Featuring an intuitive 3-LED charge indicator, users can easily monitor the battery's status. Its active cooling system ensures efficient operation and extends battery life, making it a reliable power source for blowers, chainsaws, trimmers, and other compatible Husqvarna tools. The BLi20 offers 144 Wh of energy, combining durability with a lightweight design for enhanced user comfort.