Have you tried a different charging cord to see if it works? If your cord is damaged (and you don't have to see the damage) that could be your problem.
If that isn't it, then I would be looking at a battery replacement.
Have you tried a different charging cord to see if it works? If your cord is damaged (and you don't have to see the damage) that could be your problem.
If that isn't it, then I would be looking at a battery replacement.