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
Makita 18V LXT Lithium-Ion High Capacity Battery Pack 5.0 Ah with LED Charge Level Indicator (2-Pack) BL1850B-2 - The Home Depot