Milwaukee M18 18-Volt Lithium-Ion High Output Battery Packs (1) 12.0 Ah and (2) 6.0 Ah Batteries 48-11-1812-48-11-1862 - The Home Depot
Amazon.com: Powilling 6.0Ah 18V Lithium HPB18 Battery Compatible with Black and Decker HPB18 HPB18-OPE 244760-00 A1718 FS18FL FSB18 Firestorm Battery Black and Decker 18 Volt Battery Include Charger : Tools & Home