Ask Honest John

Most recently answered battery drain questions
My wife has the Toyota C-HR Hybrid and we have just returned from a long holiday (11 weeks) and the battery is flat. Would a solar charger be sufficient to keep the battery in good order? Does the C-HR...
My mother-in-law is 82 and every other week her hybrid Toyota e-CVT is going flat in the Autumn. Yes, maybe a new battery is in order (it's coming up to five years old) however I wondered if there is...
I have owned a Fiesta hybrid, bought as a pre-reg, since November 2021. It went back to the main dealers in January because the touch sensitive locking stopped working. I was told this was due to the 12V...
Which is the best car for short journeys? My Ford Puma isn’t apparently driven enough to recharge so twice the battery has drained in the eight months I’ve had it. I need something comfortable, big enough...
I have just taken delivery of my Kia Niro PHEV. I have a wallbox charger and intend to top up the battery each night so I have 100 per cent charge for local trips. Will this damage the battery?
When I collected my new lease car last October the salesman told me not to leave the doors or boot open as it would trigger the low battery warning. I had not noticed this on my test drive and the dealership...
My daughter has a 2009 Honda CR-V 2.2 Diesel. Every few weeks the battery goes completely dead and the car has to be jump-started. The local garage cannot find the reason. The battery is only a few months...
What's the ticking noise behind the dashboard when I turn the ignition? The car is a Volvo S40.
Is there a problem with the battery in my 2017 Discovery? It's losing voltage when left parked for two weeks.
The battery in my BMW has failed after 24,000 miles and the car is still in warranty. As an experienced driver, I've made sure the car has had regular runs of 20 minutes or more. BMW says there is no warranty...