VANTTECH LBXR36 4.0Ah Replacement for Black and Decker 40V Battery Lithium-Ion MAX LBX2040 LBXR2036 LBX2540 LBX1540 LST540 LCS1240 LST136W Compatible for Black and Decker Cordless Tool(2Pack) - Amazon.com
Amazon.com: Hoover ONEPWR 4.0 Ah Lithium Ion Battery, BH25040, Black : Home & Kitchen