Nikon D5500 Digital Camera Battery Lithium Ion (1250 mAh 7.4v) - Replacement For Nikon EN-EL14 Battery Replacement battery for the Nikon EN-EL14, Lithium-Ion (Li-ion) 7.4V (1250mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark