Forum Discussion
Salvo
Mar 08, 2016Explorer
Yep, that's what I've been saying. A big series string resulting in a big voltage differential between a 12V battery and the operating Vmp is not a good design. You get poor efficiency. The charge controller will get hot.
Better to go with a series-parallel string (if using 4 panels) or just parallel when using 3 panels.
Better to go with a series-parallel string (if using 4 panels) or just parallel when using 3 panels.
JiminDenver wrote:
I've been testing the 3 250w's in series and two things. The controller gets hot bucking down those voltages and I'm losing amps in the process. Each panel peaks at 18.5a alone but peak in series is 45-50a.
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