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Powerextra 3.0Ah 40-Volt MAX Replacement Battery Compatible with Black&Decker LBX2040 LBX36 LBXR36 LBXR2036 40V Lithium Ion Battery - Amazon.com
Amazon.com : ORHFS Upgraded 2 Pack 20v Max 3000mAh Replace Battery for Black and Decker,LBXR20 Replacement Battery LB20 LBX20 LBX4020 Extended Run Time Cordless Power Tools Series : Tools & Home Improvement