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All I run is a fridge and two fans, only one fan when the fridge is running, guess I will just run the fridge and no fan until it cools down a bit. Probably the excess heat making the fridge work harder, any idea on the heat sink idea?

Wired in parallel voltage never goes above 19v my cheap ass multimeter is fused at 10 Amp I have checked each panel and in max sun 4.8 amps max, the cheap controller has an Amp meter, I do not trust it either but it never shows over 19.4 amps

Thank you

Yes they are hooked to a 1500 w inverter never pull more then a 5 Amp spike with 3 Amp steady.

Yes wired on parallel

Sorry 4 pannels pushing 23 amps max 30 amps charge controller 390 watts at 12 volt

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...

Thank you

Makes sense, thank you

They are old large clamp style 2000 watt power drive came out of my semi. I have the connections hooked to the same battery but not the one that are connected to the charge controler

Oops sorry 3 12v lead acid batteries in parallel

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...

UPDATE Moved the system today, used 20 ft of #8 went from 14.9 amps to 19.5 amps, I am dancing a jig, Thank you all for your input.

I have only figured it out as one direction, as dc current only travels in one direction, as opposed to AC current that travels both ways

Ancient 8 year old lead acid deep cycle batteries, that are reaching the end of their life span, I have two inverters I 1500 watt roadwork inverter and a 2000 watt power drive, both are reminants of my trucking days, the 2000 watt uses to much power at idle so I use the 1500 watt most. To be...

Wish I could but 24v inverter is our of budget

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...