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New system 3 months old. I have 8 Renogy AGM 200 AH wired in a diagonal pattern at 24V. When the sun goes down my "battery" capacity quickly drops to 80-85% in just a matter of hours, but then will only drop maybe another 5% by morning 8 hours later. Since these are AGM and I should only...

Cant figure out why my charge controller has an alarm light and will not register incoming PV voltage. 12 V Batteries are 2S 4P, with 25.9V output with my voltmeter. When I connect the battery bank to my CC I get the following on my screen. Not sure why I am getting 4V from my PV when its not...