eForCity Battery x 2 for Nikon EN-EL10 ENEL10 EN-EL-10 ENEL-10 High capacity, rechargeable DC 3.7V Li-Ion battery with premium cell. Latest Lithium Ion battery technology gives the best performance possible compared to other battery technologies such as Nickel Metal Hydride (Ni-MH). Never run out of battery power when you're just about to capture the perfect moment! Time to get extra power for your digital video camera/camcorder. Best replacement for the original Nikon EN-EL10 / Olympus Li-40B / Li-42B / Pentax D-Li63 / Fuji NP-45 / NP-45A / Kodak KLIC-7006 battery pack.