DEWALT 20V MAX POWERSTACK Compact Lithium-Ion Battery (2 Pack) DCBP034-2 - The Home Depot
DeWalt to Ryobi 18-20V Battery Adapter – Badaptor
Amazon.com: Adapter for DeWalt to Milwaukee Battery, Aikeec Battery Adapter for DeWalt 18 20V Lithium Battery Convert to for Milwaukee 18V M18 Battery Use for Milwaukee M18 Cordless Power Tool (Adapter only) :