REPLACEMENT FOR BLACK&DECKER: Compatible with Black & Decker 20V MAX lithium-ion batteries such as LBXR20, LBX20, LBXR2020, LB2X3020, LB2X4020, LBX4020, LBXR2020-OPE, etc. REPLACEMENT FOR PORTER-CABLE: Compatible with Porter-Cable 20V lithium battery Pcc685L Pcc685LP Pcc680L Pcc682L,etc； and Black and Decker 20V Lithium Battery LBXR20, LBXR2020, LBXR2020-OPE, LBX4020,etc LED INDIRECT：The charger is equipped with an LED indicator that allows you to monitor the battery is charging status at all times. The charging status can be determined based on the LED light, including whether the battery is fully charged, charging, damaged, or experiencing overheat or cold conditions SAFE AND RELIABLE：Batteries are CE, FCC & ROHS certified.Intelligent Protection against potential damage caused by over-charging, over-discharging, over-voltage, over-current, short-circuit VANTTECH SERVICE：Please feel at ease to contact our 24-hour online customer service if you have any questions during the use of the battery( on "YOUR ORDER" options click the "contact seller")