For Black & Decker 20V lithium battery LBXR20 LBXR20-OPE LB20 LBX20 LBX4020 LB2X4020 LBXR2020-OPE LB2X3020-OPE LBXR20BT. For Black&Decker 20V Li-Ion Batteries. Only suitable for Li-ion batteries. Not for Ni-MH / Ni-Cd batteries.
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