Used Canon DC Coupler DR-E8 for T2i, T3i, T4i, and T5i

The Canon DR-E8 DC Coupler When used in conjunction with a compatible AC adapter allows you to power your Canon EOS Rebel T2i Digital Camera directly from an AC Power source. This is a preferable means of powering the camera when shooting in a studio environment, when shooting tabletop product photography, or any photo situation where the camera may need to be powered up for long periods of time.

For EOS Rebel T5i, Rebel T4i, Rebel T3i, Rebel T2i