Thread: Deep Cycle 12V Caravan Battery

Originally Posted by Bos

Appreciate all the comments and advice.
As it was given to me, got nothin to lose in trying to restore it.
I was told that a 24v charge into it for the first 12 hours would restore it enough to then handle a 12 v charger. At any rate, I'll give a few of the above options a go and see what happens

Havent read past this, so someone else might've suggested the same: I've had good results connecting a large, fully-charged battery to the dead one, then a charger onto the good one for a couple of days. Once it accepts charge (and charges up), work it hard ie wind over something in 1stgear. Run it down a bit, then hard-charge again before putting into service. I have 2x 400cca batteries going strong a year after they were deemed scrap. This was advice given to me , specifically for gel-mat batteries, but worked equally well on the lead-acid. Worth a shot

Went to start the mighty Outlaw up, and dead flat battery. 2 volts. Gel. Smart charger didn't recognise it. So did your trick and jumpered it in parallel to a 200ahr I have at full charge. Overnight it rose to 10 volts. Now on trickle charge in the smart charger. Wonderful! Will see how it fares tomorrow at the Kuratau quad bike ride. Go the might ktm RFS 525 motor