Battery Charger Input Voltage Too High

Common symptoms

What you'll notice

• Check the battery voltage and ensure it is within the normal range.
• Inspect the battery terminals
• Check the battery charger itself for any malfunctions and consider replacing it if necessary.

Common causes

Most likely first

1. Faulty battery charger
2. Incorrect power supply to the battery charger
3. Defective charging circuit in the vehicle

How to diagnose & fix

Work through it in order

1. Overheating of the battery charger unit
2. Burning smell coming from the charger
3. Inconsistent charging or slow charging of the battery
4. Automatic shut
5. off of the charger due to high temperature
6. Damage to the battery charger unit