Compatible with
Models: WA3012, WA3520, WA3525, WA3571, WA3575^^Battery
kind: Li-ion, Voltage: 20.0V, Capacity: 4000mAh / 80.00W h.
Specification: 121.80 x 84.70 x 60.70 mm, Weight: 790.0 g. ^^No memory effect, over-charge, over-discharge, over-heat, over-current and short-circuit protection. ^^Our products have passed strict quality inspection. if you have any questions, you can contact us. ^^365 days warranty