ChiliPower EN-EL9, ENEL9 1500mAh Battery for Nikon D3000, D5000, D40, D60, D40X, D3X 100% Compatible with all Nikon EN-EL9 compatible cameras and chargers This ChiliPower 1500mAh battery is made with high quality Japanese cells and exceeds the Original battery 3-year Warranty, CE Safety Certification, All safety features integrated Fully decoded version with micro(info)chip which can show remaining time on camera, No memory effect Integrated microchip prevents overcharging & lengthens battery life