When to act urgently
Do not handle damaged, leaking or swollen batteries.
Common possible causes
- Ageing battery
- Alternator fault
- Poor cable connection
- Electrical drain while parked
What you can safely check
- Check whether a light was left on
- Note how long the vehicle was parked
- Look for loose terminals without touching damaged cables
What not to attempt
Avoid dismantling safety-critical, pressurised, hot or high-voltage systems without suitable training and equipment. Generic symptoms are not enough to choose a repair.
How a workshop diagnoses it
A technician will confirm the symptom, review relevant vehicle information and use physical, electronic or measured tests as appropriate. The aim is to separate the underlying cause from related symptoms.