Forum Discussion

OregonTRX4's avatar
OregonTRX4
Explorer
Mar 25, 2014

Solar panels wire to controller: Length of wire?

I keep my trailer parked on private property and the spot where I keep my trailer is just out of range from where I can get direct sun most of the day. I have 2 80w panels on a stand and a charge con...
red31's avatar
red31
Explorer
Mar 27, 2014
PWM
I'm sticking with the theory that the panel is directly connected the battery during bulk of 13.5v and the controller doesn't limit voltage till Vabs. Volt drop (controller-panel)may be a concern under those conditions but the current should taper till it is no longer a big deal. .08v @ 14.6, 4' 10 awg.

Full, the controller would limit to float with low current.

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