I recently noticed that my GoPro Hero 7 Black has a problem. It doesn't turn on when I install the battery, yet it turns on and displays the message "no battery" while simultaneously heating up when I attach electricity. The GoPro remains dead unless I attach it to a power source, even though I have charged and changed the battery. mrwhitegoespro asked a question. May 13, 2019 at 12:27 PM. Gopro hero 7 black getting really hot and battery life very short. I'm using the gopro hero 7 but i have noticed that the battery is draining relatively fast compared to previous models, and it's getting really hot when using or charging or while being connected to phone. gjNO8v.