Energup 20v 2500mAh Lithium-Ion Replacement Battery for Black&Decker LBXR20 LB20, LBX20 Cordless Tool Battery Lithium Ion Battery, Capacity 2500mAh, Voltage 20V Max,50Wh Perfectly compatable with BLACK+DECKER 20 Volt Max lithium ion cordless tools No memory effects. Overcharging protecter built in. Longer runtime and improved performance, Holds a charge for up to 500 days, Easy to install and remove. 30 Days Money Back and 1 Year Warranty. On-time customer service.