Battery Upgrade Time
Our fifth wheel came with a single Interstate group 27 battery, that we unfortunately neglected (left plugged in, in storage, for three months while we were too busy to get to it) and boiled all the e...
Forum Discussion
Ok so the WFCO might be putting out higher voltage than it is supposed to. Sometimes a converter will do that when a part inside it fails.
IMO before leaving any new battery on that converter, just run the rig with no battery so only the WFCO is making the 12v. Check the 12v system voltages with your meter. Should be 13.6v. If you see that, leave it for a day or two so you can trust it. ( iIt might take a little time to go funny voltage--I am no tech, but that is what I would do just to be sure)
If you get over 15v stop-unplug the WFCO and just use battery for 12v until you get a new converter--you can harm some 12v things in the rig with high 12v voltage. Eg. Lights can burn out sooner and the fridge is not supposed to see over 15.4v
Another thought. If the converter sees a low battery it is supposed to go to 14.4v until the battery charges up some and then drop to 13.6 again. Since the battery was charged up, is there anything else in the 12v system that could have been on that might fool the converter into thinking the battery was low? I don't know if the converter would, but if it did, 14.4v for very long would make the battery lose water for sure. In that case the converter would not be the culprit.
IMO before leaving any new battery on that converter, just run the rig with no battery so only the WFCO is making the 12v. Check the 12v system voltages with your meter. Should be 13.6v. If you see that, leave it for a day or two so you can trust it. ( iIt might take a little time to go funny voltage--I am no tech, but that is what I would do just to be sure)
If you get over 15v stop-unplug the WFCO and just use battery for 12v until you get a new converter--you can harm some 12v things in the rig with high 12v voltage. Eg. Lights can burn out sooner and the fridge is not supposed to see over 15.4v
Another thought. If the converter sees a low battery it is supposed to go to 14.4v until the battery charges up some and then drop to 13.6 again. Since the battery was charged up, is there anything else in the 12v system that could have been on that might fool the converter into thinking the battery was low? I don't know if the converter would, but if it did, 14.4v for very long would make the battery lose water for sure. In that case the converter would not be the culprit.
