The Master Nikon Battery is a replacement for the Nikon EN-EL10, Fuji NP-45, Olympus Li-42B Battery. As a high-capacity, rechargeable Li-ion battery, it can be recharged hundreds of times and lasts a long time. The Master Nikon Battery is made of high-quality materials to ensure its durability. It also has low internal resistance, which ensures fast charging and discharging speed. Product Features in Detail Master Nikon EN-EL10 / Fuji NP-45 / Olympus Li-42B BatteryMaster batteries are a high-quality, long-lasting power source for your digital camera.