Hi there and welcome
We can check if you have this installed Bob. Go to the list of all apps and look for Power Management
Do you see this app?
ok, then this is not causing it.
Are you charging via computer or wall socket? And with the original cable?
ok, but you can still tell me the answer?
ok, then the next step is to reset it, this will remove all data and return it to new, so backup anything first.
Then go to settings, backup & reset, Factory Data Reset
Run this, set it up and see how it now charges.