Forum Discussion
Canadian_Rainbi
May 26, 2013Explorer
Took advantage of a cloudy and rainy afternoon at a Vancouver Island Chapter of FMCA rally in Duncan BC to remove a little extra wire between the solar panels and the controller input.
The "tech" who installed the two additional panels and new controller had not wired directly to the controller but had simple added some more #10 to the wire that went to the original controller then back up the inside of the galley wall to the new controller, ignoring the fact that the original wire ran right past the location of the new one. I now have over 12 feet of #10 wire and calculate that I have reduced the voltage drop to the Blue Sky controller by .489 volts.
The entire job took about 30 minutes.
Why I didn't chase this down at least a year earlier I can't explain. :S
Next step is to see if I can reduce the length and/or increase the gauge between the controller output and the batteries. There is about 8' of #10 going from the controller to the connections that connected the batteries to the former converter. From there I believe (but cannot see clearly) is #6, and I guess at least 15 to 20 feet of that.
For those that are interested in the details, I have 420 watts of solar panel and 484 AH of GC batteries.
The "tech" who installed the two additional panels and new controller had not wired directly to the controller but had simple added some more #10 to the wire that went to the original controller then back up the inside of the galley wall to the new controller, ignoring the fact that the original wire ran right past the location of the new one. I now have over 12 feet of #10 wire and calculate that I have reduced the voltage drop to the Blue Sky controller by .489 volts.
The entire job took about 30 minutes.
Why I didn't chase this down at least a year earlier I can't explain. :S
Next step is to see if I can reduce the length and/or increase the gauge between the controller output and the batteries. There is about 8' of #10 going from the controller to the connections that connected the batteries to the former converter. From there I believe (but cannot see clearly) is #6, and I guess at least 15 to 20 feet of that.
For those that are interested in the details, I have 420 watts of solar panel and 484 AH of GC batteries.
About Motorhome Group
38,770 PostsLatest Activity: Apr 12, 2026