Putting the finishing touches on the lawn of lithium-Worx GT 2-in-1 cordless lawn trimmer. Comfort and easy adjustment developed, which converts 2-in-1 tool easily from a trimmer to a walk behind edger, care for your lawn is a breeze. . The 18-volt lithium-ion batteries much power and free you from cables and sockets. .right boundary: Read customer review 
From the Manufacturer The Worx 18-volt lithium-ion replacement battery is designed for use with battery Worx WG151 developed models. 5, WG251. 5 and WG540. It is ultra lightweight, fast charging, and provides prolonged duration than standard NiCd batteries. 18V Li-Ion battery repl. 18V / 1 3AH Li-Ion Battery for Worx WG151 model. 1 battery lawn trimmer. Read customer review