12-13-2017 02:18 AM
Sorry, the question seemed a bit vague. Did you mean will the GoPro work if it's connected to it's charging cable even without batteries?
The answer is, surprisingly, yes!
Maybe it would be a good idea if you're shooting time lapse or something. Downside is that the ports are exposed.
If your question is can you charge the gopro with the same cable used to view videos (HDMI), I'm not sure. Don't have one of those cables yet. Probably won't charge.