with so many knock off nikon batteries now that dont hold a charge i bought this to enable the use of aa panasonic enneloop aa bateries that work in most any condition, i was super happy with the grip too as it has the rubberised texturing that matches the one on the camera, i have bought a grip from another company that was supposed to work with aa batteries and ir didnt and not only that it didnt have the rubberised texture like this one did, i may be buying another one of these for my other camera as it is much better quality and will work with the oem batteries as well as the aa ones :)