Greetings,
If your battery (when mounted) is not secure, jiggles or has play, etc. the mount or battery itself is damaged.
Check that the little tabs on the battery are not missing or broken. If they aren't, inspect the retention mechanism on the camera. One or the other likely needs service or replacement.
~Rick
Bay Area - CA
~R5 C (1.1.2.1), ~R50v (1.1.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, ~RF 200-800 +RF 1.4x TC, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve Studio ~ImageClass MF644Cdw/MF656Cdw ~Pixel 10 ~CarePaks Are Worth It
