SEA LIFE DC1400 Digital Camera Battery Lithium-Ion (850 mAh) - Replacement for Nikon EN-EL10 Battery Replacement battery for the Nikon EN-EL10, Lithium-Ion (Li-ion) 3.7V (850mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark