Hi Glenn and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, how is the camera battery being charged please? ...USB cable + AC adapter? ...or USB cable to computer?
Have you tried any other charger?
Let's try checks by process of elimination:
Please post back results / observations of the above once tried.
These are the only easy user doable attempts as all others would most likely be internal to the camera.
Additionally, can you please try careful cleaning of the battery contacts using foam swab lightly dipped in household alcohol?