Battery

[lgvdriver]

Hi folks, it's been a long time since I last put anything on the forum,
but can anyone tell me, when charging a leisure battery do you leave
the caps on or do you remove them. Much obliged Dougie.

 

[JTQ]

You never remove them whilst charging but you might slacken them. Spitting acid risk. However with a well sorted charger you ought not need to do anything. Your car battery stays as it is when the alternator charges it and that is generally charging at higher currents.

 

[lgvdriver]

Thanks for the quick reply JQT, will take your advice.

 

[ChrisUK]

I agree with JTQ you need not do anything with a well sorted / inteligent charger (Lidl / Aldi being a good cheap solution) but with the much older chargers they can eventually take the volts up somewhat higher than on a car and the battery can start gassing (hydrogen), so loosening the plugs is a good idea then.
A friend's son overcharged a battery with one of these older chargers, then did the stupid thing of disconnecting the leads without switching off first. A big bang resulted which split the battery in two. Fortunately with no damage to himself.