I have been home from my 2 weeks off grid camping to Wyoming for about a week now.
When I was off grid the cycling of the volt meter had stopped the next day and started working properly. I did not know why. I only had Solar and generator.
When we left our dry camping spot and got to our next location which had hookups my batteries were fully charged when we arrived from the solar and they remained that way till we got home so I did not notice anymore cycling.
When I got home the trailer sat for about a week and I thought I would lower the batteries down to 80% and see what happens. Yep, the cycling in the battery monitor was cycling again.
I checked connections all was good, battery acid levels were at the top.
I noticed on my trip that the 30amp shore power plug, the wire was exposed at the bottom of the plug? The plug is molded to the battery cable. So, today I decided to replace the plug. After replacing the plug the voltage cycling stopped and the battery monitor worked as it should?
Do you think it could have been a defective plug all along?
Now the next problem..
My battery monitor is shunted. Why was it showing lower voltage in relation to battery percentage.
I fully charged the batteries to 100% and reset the battery monitor. After a few hours the monitor continued to read 100% but voltage level was at 12.45v That was not right.
I have four batteries 12v Lead acid batteries in my bank. The battery monitor was wired to battery #3. I moved the monitor leads to battery #1. Battery #1 Is the battery that has all the positive leads from trailer and solar. The monitor started reading the correct voltage? 12.85v.
The batteries are wired in parallel and I tested voltage at each battery and as you would expect all read 12.85v. I have no explanation for why the monitor read a lower voltage when connected to battery #3?
But for now, all is working as it should????
