This versatile battery powers all your 36V MAX* and 40V MAX* outdoor tools, simplifying charging and reducing clutter in your garage or toolshed. Lithium Ion technology delivers long battery life without a lot of weight. And with no "memory" effect, performance stays consistent over time. Compatible with 36V and 40V MAX* outdoor tools to save space and reduce storage clutterLightweight Lithium Ion battery technology helps you transport toolsLong battery life with no "memory" effect ensures consistent performance over time