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) :
DEWALT 20V MAX Battery Charger, 4-Ports, Simultaneous Charging for 12V and 20V Max Batteries (DCB104) - Amazon.com
DEWALT Powerstack 20V MAX Battery Starter Kit, Rechargeable, 5Ah, Lithium Ion (DCBP520C) - Amazon.com
Amazon.com: XANAD Batteries Case for Dewalt 20v/60v Max XR Battery and Charger - Holds 20V 60V 2.0/3.0/4.0/5.0/6.0/9.0-Ah Battery, Charger - Carrying Storage Bag : Electronics
Amazon.com: DEWALT 20V MAX XR Cordless Ratchet Set, 3/8" and 1/2" Sealed Head Ratchet, Battery and Charger Included (DCF510GE1), Black : Tools & Home Improvement