I have a main starter battery and a leisure batter in my van. They have been left unused for around a year with my van off the road. I am now trying to get it up and running however I am unable to charge either battery.
The main battery is around 14 months old and the leisure is around 3 years old.
I have a main charger which I have connected, however the charge gauge does not move when I connect the positive and negative leads to the batteries. When I touch the positive and negative leads together, they spark and the charge gauge moves. I therefore believe that the charger is working OK.
Could there be something wrong with both batteries that is not allowing the current to flow around the battery from positive to negative and therefore stopping them from being charged?
Any ideas would be greatly appreciated. Thank you.