New from Dewalt, the DCB203 lithium ion battery pack features an extended run-time battery and 3-LED fuel gauge system, which allows immediate feedback on state of charge. The Dewalt DCB203 offers up to 33% more capacity than standard 20V MAX battery packs. This lithium ion battery pack has a lightweight design and quick 35-minute charge time. Virtually no self-discharge provides maximum productivity and less downtime. The DCB203 works with the Dewalt DCN660B and DCN660D1 cordless finish nailers.