Ask Honest John

Most recently answered battery charging questions
Recently, the fan belt, tensioner and battery light came on in my 2004 Ford Mondeo. I had belt and tensioner replaced, but battery light still. I checked the battery voltage for charging, with the engine...
I'm the happy owner of a 2013 Toyota Prius. I'm leaving the UK for two months in winter and wonder what actions you recommend I take with leaving the car on the drive? The longest I've left the car unused...
I've just bought a Honda CRV. I've heard of, and experienced (mother-in-law's Honda Jazz), rapid battery drainage. I have seen various solar-powered trickle battery chargers which connect either via the...
I need a car to do a round trip of five miles per day. I definitely do not want an electric car, but I would buy a small hybrid if it was any good. Would the starter battery or hybrid battery continually...
I'm having battery charge problems with my Rover 75 CDTi. I get dashboard warnings that all go away when you charge the battery, but return twenty miles afterwards.
A dealership sold us a Nissan Leaf. We didn't have many requirements beyond the basic spec (Acenta 30kw) but did specifically ask prior to order to have the ability to plug into a car charger at a specific...
I'm considering buying a hybrid vehicle but have been advised by a friend that because I only drive once or twice a week, distances of about 20 miles, a hybrid vehicle may prove problematic. Something...
I read a recent reply of yours to a Honda CR-V owner whose stop/start isn't working, where you advised a new battery. We recently bought a 2013 CR-V with a 12 month warranty from a main dealer and the...
BMW quote up to 148mpg, battery mileage up to 25 miles for my BMW 330e. I can only attain 58 mpg and battery range between 6.8 and 12 miles. I feel I have been misled badly by BMW. I would value your opinion...
I have a classic but every (fairish) day use Triumph Spitfire. The battery deteriorates in reliability if left unused for a while. Should I get a standard lead acid battery, as fitted by the original manufacturer,...