Trojan battery

Hi Gv- don't chuck it out just yet. The Trojan in our camper trailer has suffered some pretty serious abuse and accidents over the years and only now(5years old) is it in a state to consider replacement. I would top up your water levels, charge it up and see how you go. It may take a few 'cycles' until you really know if it is stuffed or not. (Helps if you have another battery in the camper as a back up if it is stuffed). doc.

You have probably murdered it.
But it may come back if your charger has an equalisation setting on it.
This will put 15 to 16 volts through the battery.
Make sure it is topped up and the lids are off the cells when you do the equalisation.

Hi gv, PLEASE DONT TOP UP TROJAN WITH TAP WATER ! Top up with rain water only or clean creek water. Chloirne in mains supply WILL stuff your battery.

Sorry, sounds dead to me. I've been in the same situation before - if you've recharged it on the Ctek for a few days and its still losing charge, then I have doubts you'll be successful.

Lots of people telling you to top up the water, but a thoroughly flattened battery will have the level drop below the plates. Then as its recharged, the level will rise again. The problem with topping it up with extra water, is that if you are successful in resurrecting the battery, you might find yourself having to remove acid because the battery is then overfull.

Also a totally flattened battery will take at least a week to recharge. The problem is that its internal resistance rises heaps, so it will be slow to accept charge. I can remember one battery being restored after if was flattened dead by a 3-way fridge, but I've seen others since that never get back to normal no matter how long they are charged.

Now that you're back home, give it another go on the Ctek on and off for a week and see what happens, but my guess is that its a lost cause. I have a switch to isolate my camper battery when not in use and hook it up to the charger every few weeks to keep it healthy.