12/24v Solar Controller --> 6v Batteries
Background: Purchased a used coach, came with a solar panel/controller setup that's connected to Two 6-volt house batteries. I got no paperwork for any of it but scouring the interwebs I at least fou...
Forum Discussion
You can disconnect the solar with a switch on one of the two wires going to the "Array" or "Solar" (whatever they are marked as) terminals of the controller. Leave the "Battery" terminals connected. Ignore the "load" terminals entirely.
You have 12v panels with your 12v battery system (two 6s in series is 12v) so all is well. If you had big 24v panels, you would have an MPPT controller.
Check the settings on the controller with the buttons for that to see what the voltage is set for. Mid-14s is good. Once it says the batteries are at that 14.x voltage, check what the real voltage is using your DMM. On my Solar30, it overshoots by 0.3v, so to get my 14.8, I have to set 14.5.
If yours is overshooting and getting the batts to 15.x, that would also explain the bubbling.
You have 12v panels with your 12v battery system (two 6s in series is 12v) so all is well. If you had big 24v panels, you would have an MPPT controller.
Check the settings on the controller with the buttons for that to see what the voltage is set for. Mid-14s is good. Once it says the batteries are at that 14.x voltage, check what the real voltage is using your DMM. On my Solar30, it overshoots by 0.3v, so to get my 14.8, I have to set 14.5.
If yours is overshooting and getting the batts to 15.x, that would also explain the bubbling.
