Forum Discussion

carl2591's avatar
carl2591
Explorer III
Dec 26, 2017

out what size charge controller for solar panels.??

I was gifted a couple of 335 watt solar panels the produce 46.3V Voc, 37.9V Vmp, 8.8A Imp, 9.36A Isc. I have a 20 amp MPPT controller that might work but not sure as the info show 12 or 24 v opera...
pianotuna's avatar
pianotuna
Nomad III
Jan 22, 2018
Hi,

You would be far better off with the Grape 40 amp PWM controller from Home Depot, as opposed to the Bogart. It is a best buy item.

I would use 4/10 which would allow 2 #10 wires for positive and 2 #10 wires for negative.

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