DEWALT 20-Volt 4-Pack 2 Amp-Hour; 2 Amp-Hour Lithium-ion Power Tool Battery Kit (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com
DEWALT 12V/20V MAX 2-Tool Combo Kit, with (1) 12V Battery, (1) 20V Battery, Charger and Tool Bag in the Power Tool Combo Kits department at Lowes.com
Dewalt DC9181 Battery Li-ion Replacement
DEWALT DCB210 20V MAX XR® 10.0Ah Lithium Ion Battery - - Amazon.com
ExpertPower Replacement Battery for DeWalt DC9182, DC9181, DC9180, 18V XRP Lithium Ion fits All Dewalt 18 Volt Tools - - Amazon.com
2 Pack ExpertPower Replacement Battery for De-Walt DC9182, DC9181, DC9180, 18V XRP Lithium Ion fits All Dewalt 18 Volt Tools - - Amazon.com
Dca1820 20v Battery Adapter For Dewalt 18v Tools 18v-20v Lithium Battery Portable Replacement Professional Charger Tool With Usb - Power Tool Accessories - AliExpress