Polishing up my Solar System
So I currently have 300w(2 each 150w panels), a Samlex 30a Controller. It feeds 4ea. 6v batteries in series and paralleled. My rig came prewired for Solar. It has the Samlex panels and the Samlex w...
Forum Discussion
"Ass-uming" 12V panels...
#1: It depends on your criteria of "good" and your budget. Off the top of my head, EP 30 will do, subject to input volts limit (BFL probably remembers that number). Morningstar Tristar 45 will be nice, for much more money.
#2: Controllers normally have ONE input for panels, i.e. Pos and Neg. Any combining of panel wires is normally done on the roof waay before the controller. In case of series it's just plugging panels pigtails one into another.
#3: Normally, panel pigtails are #12 or #10. Plenty thick for series, not enough for parallel 3*150W.
#4: Did you mean "MC4 extension cables"? Yes. Panel pigtails - not really, because they are normally soldered to the panels. Yes, there are #8 extension cables with the same MC4 connectors (again, "assuming" you have MC4 since you didn't tell this). No, #8 is not necessary for series 3*150W, but for parallel you might need to combine pigtails into #8 or #6 before routing into the trailer.
#5: Will hardly affect in series. In parallel you might need combiner box and #6-#8 cable.
#1: It depends on your criteria of "good" and your budget. Off the top of my head, EP 30 will do, subject to input volts limit (BFL probably remembers that number). Morningstar Tristar 45 will be nice, for much more money.
#2: Controllers normally have ONE input for panels, i.e. Pos and Neg. Any combining of panel wires is normally done on the roof waay before the controller. In case of series it's just plugging panels pigtails one into another.
#3: Normally, panel pigtails are #12 or #10. Plenty thick for series, not enough for parallel 3*150W.
#4: Did you mean "MC4 extension cables"? Yes. Panel pigtails - not really, because they are normally soldered to the panels. Yes, there are #8 extension cables with the same MC4 connectors (again, "assuming" you have MC4 since you didn't tell this). No, #8 is not necessary for series 3*150W, but for parallel you might need to combine pigtails into #8 or #6 before routing into the trailer.
#5: Will hardly affect in series. In parallel you might need combiner box and #6-#8 cable.
