Allowing the use of continuous, uninterrupted AC power with select Canon DSLRs, this AC Adapter and DC Coupler from Power 2000 is ideal for long stationary recording situations, such as for time-lapse shooting, long exposures, and extended video recording. This bundle comprises an AC adapter, for connecting to a wall outlet, and a DC coupler (dummy battery) that replaces the standard battery inside the camera.
This was a lifesaver for recording videos on my Canon t6i because I didn't have to worry about my battery dying. But suddenly, after using it once a week or so for about 7 months, it died. My camera no longer recognizes it when I put it in.
I've been using this to power my Canon 70D, which I set up to use for videoconferencing with my online students. I've had no problems nor any misgivings about the product. Every time I use it, the camera detects that it is not a real or correct battery and asks if I want to proceed with using it. I click yes, and no more burning through batteries during the school day!