Amazon.com: X-Adapter 1x Adapter for DeWalt 20v MAX XR Cordless Tools Works On Ridgid 18v (Not Advanced) Batteries- Adapter Only, Black (LQ-DW) : Tools & Home Improvement
DEWALT 18V 20V Original Lithium Ion Battery 1.7AH 2AH 4AH 5AH DCB182 DCB184 DCB203 DCB204 DCB205 DCBP034 Battery