As mentioned in an earlier post, I had installed a three way switch in my chassis dedicated 40W Solar panel harness so that, while traveling on the road, I could direct the Solar production to the house batteries. I have also made changes to the other Solar runs so that they could be isolated to any single or combination of the 3 battery banks. As noted above and on other posts, if you have a charge controller in the line, once the alternator is producing, the charge controller will shut your Solar panel off as the controller receives the 'charged' signal.
This past year, for extended family reasons, my CLIPPER has spent a lot of time at home hooked up to shore power which defeats the purpose of the 'House' Solar Systems.
I have now again changed the OEM 2 X 53 Watt Solar panels so that I have an option of directing that production to the chassis batteries if on shore power. As posted previously, I can separate all three battery banks, and there is no real need for the Heart Inverter/Charger working to charge the other two battery banks if they are not being used.
In the winter months at my home base, I don't get much sun so I need to use all the Solar production so I can to try to recover some of my $ invested.
I also have now installed a new 3 way switch,( TOGGLE SWITCH HD #765034 50AMP) at the controller on this 2 x 53 Watt harness. This allows me to,
1: set in normal position,
2:shut the panel production down for any maintenance,
3: and the other side allows me to bypass the controller for maximum production in the off season. These panels are already equipped with diodes so no back feed will happen.
By bypassing the controller, I can get that last extra .5 to 1 volt of the system and also allows a little bit of equalizing on few those bright sunny days in the off season here on the west coast.
The toggle switch makes it easy rather than pulling the harness apart to accomplish the same task.