Amazon.com: DEWALT Powerstack 20V MAX Battery, Rechargeable, 5Ah, Lithium Ion, 2-Pack (DCBP520-2) : Tools & Home Improvement
DEWALT 12-Volt 2-Pack 3 Amp-Hour; 5 Amp-Hour Lithium-ion Power Tool Battery (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com