Nikon D7000 Digital Camera Battery Lithium Ion (2100 mAh 7.0v) - Replacement For Nikon EN-EL15 Battery Replacement battery for the Nikon ENEL15, Lithium-Ion (Li-ion) 7.0V (2100mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark