The Canon BG-E7 Battery Grip is the proper battery grip for the Canon EOS 7D. The BG-E7 holds two Canon LP-E6 Batteries that deliver double the number of shots or video time from the 7D. Alternatively, use 6 AA batteries in the included Canon BGM-E7 Battery Magazine. Six Alkaline AA batteries are rated for 400 shots (a single LP-E6 is rated for 1,000 shots).
|Power Source||1-2 x LP-E6 Li-ion Batteries or 6 x AA Batteries|