【Product Parameter】Battery Type: Li-ion, Voltage: 20V, Capacity: 3800mAh, Quantity: 2 pack. Work with original charger, no need to buy new chargers. 

【Compatibility】Replacement battery 100% compatible with Black and Decker 20V cordless power tools, like LBXR20, LBXR20-OPE, LB20, LBX20, LBX4020, LB2X4020-OPE, LBXR2020-OPE, LBXR20B-2, LBXR20-OPE BDCDMT120, CHH2220, LDX120C, LDX120SB, LGC120, LHT2220, LST120, LST220, LST300, LSW20, etc. 

【Professional certification】CE/RoHS/FCC certified and 100% brand new. Safeguard features against incorrect voltage, battery overload, short circuit, internal overheating. tested by manufacturer to match OEM products. 

【Storage method】1.Keep battery away from heat and metal accessories. 2.Give a full discharge and charge every month during storage time. 3.Please don't stay battery in charger unless in charging. 4.Don't store in the damp and direct-sun exposure.