I have 3 batteries but only one have this problem , this means that camera it’s okwonder if the actual camera and charge curcuitry to blame
As @Kofla points out, bats get swollen for reasons. will not go into detail, if the bat is swollen, best not be sitting in the house. Number of reports, were the camera, and not staying near in person when camera charges, people go to sleep leave charge all night. The camera takes up to 4 hours on a depleted battery via the laptops 3 types of Amps it pushes out, Also PD charges to. cell charges, I. Uses a .5Amp. Takes the same time to charge. My bat up Less isssuesI have 3 batteries but only one have this problem , this means that camera it’s ok