DEWALT 18-Volt 2-Pack 2.4 Amp-Hour; 2.4 Amp-Hour Nickel Cadmium (Nicd) Power Tool Battery Kit in the Power Tool Batteries & Chargers department at Lowes.com
DeWalt's 18v Battery Fits Old and New Tools - FineWoodworking
DEWALT 20V MAX XR Lithium-Ion Cordless Premium Brushless 1/2 in. Hammer Drill and 20V MAX XR Premium Lithium-Ion 4.0Ah Battery DCD996BW204 - The Home Depot
Amazon.com: DEWALT 20V MAX Cordless Drill and Impact Driver, Power Tool Combo Kit with 2 Batteries and Charger, Yellow/Black (DCK240C2) : Home & Kitchen
Upgrade Dewalt 14.4v Drill to Use 18v Battery : 3 Steps - Instructables
DEWALT 18-volt 1/2-in Cordless Drill (2 Li-ion Batteries Included and Charger Included) at Lowes.com
DEWALT 20V MAX XR Cordless Brushless 3-Speed 1/2 in. Hammer Drill with (2) 20V 5.0Ah Batteries and Charger DCD996P2 - The Home Depot