Flaky 12v service
I have a 2012 Puma Palomino TT and have an issue with 12v electrical. Upon opening up the unit the slideouts opened normally and the weather was cold around 35 degrees or so. Last weekend, 2-weeks after opening the unit, I turned on a light switch and the low voltage beeping came on, the light was dim and so were all the other lights. It was like being in a brown out condition at the extreme. This is all while hooked up to shore power and the battery in place. I tried it with battery removed and still on shore power and condition was sameÖdim so it isnít a bad battery correct? 12v battery isnít necessary to run 12v devices as long as Im on shore power correct? Shore power and battery in place is how it has been throughout winter as Iím at a seasonal campground. Yesterday I returned with a multimeter to check voltages but for grins, first thing I did was flip a light switch. The light was bright. I continued throughout the TT and all lights worked, bathroom fan and microwave worked, all 12v devices worked normally. My question is: Why low current to 12v 3 days ago and then normal now? Converter issue? Battery?
Thanks in advance!