The EN-EL7 is a rechargeable lithium-ion battery for use exclusively with Nikon digital cameras. It can be recharged repeatedly using the MH-56 Battery Charger. With this battery you can take approximately 250 images on your COOLPIX camera.1.Rated capacity is 7.4V / 1100mAh 2.Dimensions (W x D x H) are approx. 36mm x 16mm x 56mm (1.4" x 0.6" x 2.2") (excluding protections) 3.Weight is approx. 70g, excluding carrying case