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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.)...
ktmrfs's avatar
ktmrfs
Explorer II
Apr 06, 2022
LittleBill wrote:
your best bet, is to wire the panels in series, and put the controller as close to the battery as possible. that's the best your going to do.


only if you have a MPPT controller, with a PWM controller series panels are a NO NO NO all you will do is waste the power from the additional panels.

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