Battery questions

Just commenting here because I read and commented on another post about battery safety. Waiting on a clear answer. I have these little 2500 mAH batteries that I have been running my Xenons on. They don’t sleep but they turn off the radio for 30 minutes and turn on to publish.

Just curious if this experiment will ruin my batteries or start a fire by letting them run till shutting off.

@murmsk Dear Steve , Excuse me for the inconvenience, have you been able to develop this project/design? If so, could you share it? I’m also wanting to design something similar. I would appreciate it very much , it is of vital importance to me .