Digital Energy 7.4V/1020mAh Li-ion Battery for Canon LP-E8 Delivers 7.4 volts with a capacity of 1020mAh For: Canon LP-E8: EOS 550D, 600D, Rebel T2, Rebel T2i, Rebel T3i, Kiss X4, X5, Rebel T4i Great to replace a battery or have a spare for long shoots when you can't charge your other