PORTER-CABLE 8823 19.2-Volt 2.0 Amp Hour NiCd Slide Style Battery High capacity 19.2v battery delivers 18% more runtime than standard batteries Powers entire line of Porter Cable 19.2-volt tools allowing users to run multiple tools off of the same battery pack 19.2-volt NiCd battery Remember to recycle your old NiCad battery packs One year warranty/30 day performance certification