18V Nickel Cadmium Slide Battery, 1.2A Hours, High Output Battery Cell, No Memory Technology, Provides Up To 500 Recharges, For Use With All Spring Loaded Battery Style Firestorm & Black & Decker 18V Products.

36-Volt battery for the BLACK and DECKER 36V string trimmer. This battery offers gas-powered equipment performance, with the ease of use and convenience of cordless. Spring-loaded slide pack design provides for quick and easy changes. Extended-life battery delivers hundreds of recharge cycles to last for years.