DigiPower PGR-CNE8 Power Grip for Canon Rebel T2i/T3 (Black) Power your Canon EOS T2i or T3i D-SLR camera with two Digipower BP-LPE8 or Canon LP-E8 Li-ion batteries AA BATTERY cartridge allows you to power your compatible Canon camera with 6 x AA batteries BATTERY grip design improves stability when capturing vertical scenes Built in vertical shutter release & camera controls Extend shooting session