To isolate a charging or a battery problem, complete the following steps:
- Charge the battery overnight to guarantee a full charge.
- If it does not charge, the power supply (charger) is most likely at fault.
- If it doesn’t charge completely, the battery contacts may be at fault.
- Look inside the battery cavity for any obstruction or bent contacts.
- If the battery loses it charge very quickly, the battery may be deteriorating and may need to be replaced.