Nikon Coolpix S3600 Digital Camera Battery Lithium Ion (1000 mAh 3.7v) - Replacement For Nikon EN-El19 Battery Replacement battery for the Nikon ENEL19, Lithium-Ion (Li-ion) 3.7V (1000mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark