Test the charger on a different device. If it works fine on the other device, then you know to try replacing the battery. If it doesn't work on the other device either, then new or not the charger may be the problem.
Test the charger on a different device. If it works fine on the other device, then you know to try replacing the battery. If it doesn't work on the other device either, then new or not the charger may be the problem.