Selling your classic car? It's FREE to list your car on Honest John Classics | No thanks

The battery on my car has run down even though it's just been parked up - what's the cause?

The battery on my Opel Omega has run down even though it's just been parked up. What's the cause?

Asked on 19 September 2018 by Alfred Wright

Answered by Keith Moody
How old is the battery? It's either worn out and needs replacing or you have a 'leak' - a live feed from something that's staying on that's draining the battery after you've turned the ignition off. If you don't have a way of testing the battery's health, your local auto electrician may be able to give it a health check.
Similar questions
My 2018 Citroen C3 only does short journeys on average, say, 10 -15 miles. With the advent of the recent colder weather, the stop-start no longer operates at traffic lights and elsewhere. Any information...
Can you suggest how to care for a long-standing car because of Covid-19. I know about moving the vehicle to stop the tyres getting flat spots, but what trickle charger do you recommend to keep the battery...
My 2010 Nissan Juke will not start. The keyfob works but the ignition doesn't work at all. When pushing start button as usual, it just doesn't start. What could it be?
Related models
Comfortable, well-equipped, big cruiser with balanced rear-drive handling. Improved throughout its life so later ones are better.
 

Ask Honest John