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Howdy, I am a novice solar junkie, I moved in to a house that has 4×100 watt panels, the panels are on a ground mount over 45 ft away from the solar charger, they had the system under wired with 10 awg and the charge controler had burnt out, I got a new pwm controller 40 amp and ran 8 awg...

Howdy, it is HOT I have a cheap 30amp pwm charge controller hooked to 4x100 watt panels running 12v and three ancient lead acid batteries, hooked up. It has been over 100 for the last four days, the charge controller has started heating up a lot, I unhooked it when it reached 120f with a fan on...

Not sure if it matters, I searched and did not see a post about it. I have a 300ah lead acid battery bank, when running the cables from the charge controller, should I connect the + and - to the same battery or connect + to one battery and - to the farthest battery, or does it even matter? And...