Progo EN-EL14 Rechargeable Li-Ion Battery for Nikon D5100, D3100, P7000 DSLR Cameras, Fully Compatible Retail Package Progo Brand Battery, 100% Compatible with original manufacturer equipments, guaranteed! Integrated microchip prevents overcharging, overheat & provide short circuit protection. High quality Li-Ion battery cell. 7.2/7.4v, 1030 mAh Capacity Absolutely no memory effect so that you can charge battery at anytime 12 months manufacturer warranty