Long Cycle Life: LP EN-EL3e rechargeable lithium-ion battery can be charged and discharged 300-500 times and has excellent sustained lifespan, free from memory effect. Battery capacity: 2600mAh, voltage: 7.4V.EN-EL3e Battery meets or exceeds the OEM Nikon EN-EL3e EN-EL3 EN-EL3a Battery. Works with Nikon D50, D70, D70s, D80, D90, D100, D200, D300, D300s, D700PORTABLE: Made of ABS material, light and durable. A small backup battery can be carried anywhere in your handbags or pockets. Ideal for travel or other indoor/outdoor activities.