FUJI FILM FINE PIX NP-45 DIGITAL CAMERA BATTERYBattery Type: Li-Ion Li-Ion: A technology that solves many of the nickel technology problems. Lithium ion batteries have a higher capacity than even nickel metal. They have no "memory effect" at all (and thus regardless of their current state they can always be recharged to their fullest capacity).Capacity: 740mAh Voltage: 3.7VCompatible with Batteries Model: Fuji NP-45/NP-45A - Nikon EN-EL10 - Olympus Li-40B/Li-42B - Pentax D-Li63Compatible with Fuji Digital Camera Model: Z Series and J Series digital camera