PORTER-CABLE PCC685L Rechargeable Battery Pack, 20 V Battery, 4 Ah, 1.5 hr Charging

The 20 V max lithium-ion 4 Ah pack battery delivers maximum run-time for heavy-duty applications. We engineered this battery for no memory and minimal self-discharge, so it's ready when you need it. Use it with all Porter-Cable 20 V max power tools.