The Nikon EN-EL14A battery is an original battery from Nikon for several Nikon series cameras Df, D3100, D3200, D3300, D5100, D5200, D5300, etc. This type of battery is made from environmentally friendly Lithium-Ion type material. This battery can be recharged when the battery runs out. So you can save money on your battery budget. The Nikon EN-EL14A battery has a capacity of 1230mAh, with a voltage output of 7.2 volts and Watt Hours of 8.9 Wh. Spek : Original Nikon EN-EL14A Battery Features Chemistry : Lithium-ion Capacity: 1230 mAh Output Voltage: 7.2 V Watt Hours: 8.9 Wh Compatible: Df, D3100, D3200, D3300, D5100, D5200, D5300, etc.