Positec Industrial Ltd Worx MaxLithium Battery - For Trimmer/Edger - Battery Rechargeable - 20 V DC - 4000 mAh - Lithium Ion (Li-Ion) - 1 WA3578

Harness Even More Power Our most powerful 20V battery--4.0 Ah delivers up to double the run time of the 2.0 Ah battery Delivers increased runtime and powers your 20V cordless WORX tool through the entire job Professional grade, gas-like power with none of the emissions Efficient MaxLithium technology charges quickly and lasts longer Compact and lightweight - helps reduce fatigue while you''re working Part of the 20V Power Share platform that lets you save money by sharing batteries among multiple 20V tools Recommended for use with WA3742 20V charger or WA3868 20V quick charger