The Worx 18-Volt Replacement Battery WG150 and WG250 is designed for use with cordless trimmer models. E 'charges quickly and powers your lawn trimmer or your cordless trimmer battery through the whole work, without reducing or discharge. Worx, 18V, replacement battery trimmer, 1 7AH, for use with Model # s WG150 and WG250. All Read customer review 