Ask Honest John

Most recently answered battery life questions
I have a SEAT Leon, the engine stops at traffic lights etc and restarts automatically when you are free to go. Recently the car does not restart and a message says restart manually. Is this a sign that...
At my 4 year service on a Renault Zoe, I was advised to replace a secondary battery, not the one which drives the engine. The staff could not explain why this was necessary. Can you advise please?
Why does my 2018 BMW 120D Sport (with 21,000 miles) seem hesitant to start on icy cold mornings?
I recently read, to my surprise, the batteries on self-charging hybrids only last about five years. Then the owner has a big bill to replace the battery, that cost thereby negating any bonus they had been...
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?
I'm thinking of buying a new Honda Jazz Hybrid. My only concern is the lifespan of the batteries powering the motors. I intend to keep the car for 10 or more years so what's the likelihood of the batteries...
We're looking at the MG ZS EV to replace our 2014 Nissan X-Trail. We're not keen on paying interest on a lease when we could afford to buy outright and are happy to keep a vehicle for more than 3 years,...
The new battery on my Range Rover Vogue will not hold a charge overnight.. The main dealer who fitted the battery claim nothing is wrong with the car. I was charged £700.
I bought a Meriva from a Vauxhall main dealer less than three months ago, but the battery has now failed. Are they responsible for replacing it?
I always used to ask my dad these questions but sadly he passed away last year. I'm looking at possibly buying a secondhand Renault Zoe and wondered if the battery life would be affected with age. I don't...