I'd like to do multi-day time lapses to show the growth of some of my plants. My question is this: how do I deal with camera power for a time lapse lasting multiple days?
Naturally, the camera only needs to be on for the actual taking of the photo. Ideally, I wouldn't need to disturb the camera to turn it on, as then I would be photographing the scene from a slightly different perspective. Are there intervalometers capable of powering the camera on and off as needed? I've read around and hadn't seen anything on that.
I have a Canon EOS Rebel T3i, and I know about external hardware and Magic Lantern as options. I read that Magic Lantern can keep the camera in a low power state between photos, which should help. I'm not sure whether any external intervalometers do the same.
What are the ideal strategies for consistent camera position in long-term time-lapse photos? Do you have your camera continuously charging, or are you just very careful when repositioning it after picking it up to power it on? If the latter, what are your strategies for ensuring it's in the same place as before?
It was proposed that this question was a duplicate of one on how to provide continuous power. While that is one possible solution to my problem, there were other aspect of my question not included in that. For example, I also asked if there are intervalometers capable of controlling camera power, and asked for other ideas that can reduce wasted electricity between shots.