Replace Black and Decker 20V MAX Lithium Battery 5.0Ah LBX20 LBXR20 LBXR20-OPE LB2X4020-OPE High Capacity SUN POWER Wide Compatible with all B&D 20v power tools and chargers Suitable for Black + Decker 20v battery,LBXR20 LBXR20-OPE LB20 LBX20 LBX4020 LB2X4020-OPE LST220 cordless tools. Finish your job at once , without having to change batteries,with power to spare.One battery lasts the entire yard Top A Grade Battery cells,built-in integrated microchip prevents overcharging and self-discharge. 5000mAh High capacity 20v Battery,more last long time and more powerful,more than triples the run time of the original.