· Compatible with Greenworks 40V G-MAX power tools 29472, 29462, 29252, 20302, 20672, 25302, 24252, 20202, 22262, 20322, 25312, 25322, 25223, 21302, 22272, 27062, 21242, 24282, 21332, 21362, 22342, MO40L410. (Not applicable 21inch lawn mover MO40L02).· Battery Type: Li-ion, Voltage: 40V, Capacity: 4.0Ah.· Built with LED display and indicator - Allows you to monitor the battery status intuitively.· Battery uses the high quality cells, safe with rapid-charge technology while providing overcharge and over discharge protection to increase the life of the battery.· Note: 1, Keep battery away from heat and metal accessories. 2, Don't store in the damp and direct-sun exposure.3, Give a full discharge and charge every month during storage time.