I got a screen replacement on my Xiaomi Mi 8 a couple of weeks ago and lately have been noticing what seems to be my battery sliding around inside the phone and am wondering if it was not stuck down properly. In order to get the screen replacement I had to order the screen myself for the repair technician and the kit that the screen came with just came with the screen, cleaning wipes and adhesive for the actual screen itself but I don't think there's was battery stickers and in the videos I've seen of a screen replacement for the phone they all involve taking off the back and taking out the battery.
TL;DR - My Mi 8 battery is loose in my phone and I want to know if it is bad