DEWALT 20-Volt MAX XR Lithium-Ion Premium Battery Pack 4.0 Ah (4-Pack)

The 20-Volt MAX XR lithium-ion battery outperforms every DEWALT battery that came before it and that's saying a lot. Get long-lasting power and prolonged life from this 4 Ah battery that weighs just 1.42 lbs. Each battery has a built-in charge meter so you know how much power remains. DEWALT delivers huge value with this multi-pack, priced only marginally higher than a single device.