Ask Honest John

Most recently answered batteries questions
Can you charge a battery by connecting it to another car by jump leads?
My husband will shortly be having a Nissan Leaf for a 24-hour test drive. Have you driven one? If so, what is your considered opinion as to its merit against normally-engined cars.
Two years ago I removed a virtually new battery from a car I was scrapping to keep it as a spare. I have recently had it on charge for about two days, but it still isn't fully charged. Is it likely to...
Is the battery covered by a used-car statutory 3 month warranty? It failed about 4 weeks after purchase and of course the garage says "no".
My Ford Galaxy will not start. I turn the key and the ignition lights up, but nothing else happens. It won't turn over and its been like it all day. Yesterday it took a few turns of the key but it started...
If I leave the car for approx five days the battery normally is flat and the car will not start. With the current technology and consequent drain on the battery is this to be expected? I do lock it when...
I have a Prius series three and we will be away for about four weeks. I am concerned about the battery holding up for that period of time as I do know there is a continuous drain. What would your recommendations...
I'm having trouble starting my Ford Focus in the mornings. I've changed the battery, but it sounds like the engine is struggling to turn over. However, once it has started (jump leads), it will start every...
I own a Ford Focus 05 1.6 90bhp, I recently changed the battery and mpg has risen via EMC can I get it back to the lower figure by reconecting battery again, or is it a dealer issue. Also do you know if...
I recently called a well-known breakdown assistance service for help. My car had been left with lights on which had flattened the battery. The patrolman quickly started the car with a battery booster,...
 

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