2.5Ah 40 Volt Max Replacement Black and Decker 40V Lithium Battery LBX2040 LBXR36 LBXR2036 LST540 LBX1540 LST136W + LCS40 Battery Charger for Black Decker 40V MAX Battery Fast Charger - Walmart.com
HART 40-Volt Lithium-Ion 4.0Ah Battery (Charger Not Included) - Walmart.com
Kobalt 40-Volt Max 4 Ah Rechargeable Lithium Ion (Li-ion) Cordless Power Equipment Battery at Lowes.com