A Hahnel Battery Grip is simply a must have power accessory for every Nikon D80 digital SLR owner. This battery grip includes x1 Li-ion rechargeable batteries offering double the power for longer uninterrupted camera use. With the battery grip in place you can avoid running out of power at that critical moment. The Hahnel battery grip also offers a very flexible power solution, power your Nikon D80 camera from the x1 included Li-ion batteries or in an unexpected situation from additional rechargeable Ni-MH or alkaline AA batteries (Not included). Built-in Power Management regulates the power output to your Nikon D80 camera for maximum efficiency. The Power Management also detects use of Li-ion or AA This battery grip also allows for vertical shutter release as well as aperture and shutter speed adjustments. - Includes 1 Li-ion Battery - Flexible power solution, choice of Li-ion or AA mignon batteries - Built-in power management, regulates output to camera - Stylish design, matches perfectly with the camera - Improved handling, designed to lower the point of gravity - Storage compartment, for camera battery door when Battery Grip is in use. Includes x1 HL-EL3HP 7.4V 1500mAh Li-Ion Hahnel branded batteries & AA adapter for Ni-MH batteries