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profdant139's avatar
profdant139
Explorer II
Apr 06, 2022

Break-even point between cable length and voltage drop?

I have two cables for my portable solar panel – one is 40 feet long, and the other is 70 feet long. (We boondock, and we like to park the trailer in deep shade and put the panel out in the open sun.)...
BFL13's avatar
BFL13
Explorer II
Apr 06, 2022
BFL13 wrote:
PWM controller passes batt V to the panel so that is the V seen at the panel,less Vdrop not the controller's Vabs voltage of say 14.4

The IV curve for the panel uses batt V

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