8ga wire large enough?
Hi, I am going to eventually add one more 150w Samlex panel to the existing array of 2 Samlex 150w panels. From the controller to the battery the trailer came equipped with an 8 gauge wire. Right a...
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The charge acceptance rate varies considerable with applied voltage. 0.36 volts may mean you'll need days for the batteries to reach full charge. Not sure if the OP has 8 ga wire on the ground path? If so the problem is much worse. I have 720 watts of solar and i see about the same 0.36 volts drop at > 30 amps charge rate. And I have paralled two strands of 8 ga effectively making it 5 ga wire on both the live and ground wires. Wish I had even larger wire. I have seen my 40 MPPT controller max'd at at 40.0 amps after leveling and putting out all three slides.
