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I'm having a problem with 2 solar change controllers. I have 2 75/10 and each one is in its own shed. And both stop charging
The batteries are dropping to 11v before I noticed
Both say PV voltage is 21 volts and both go into balk mode but both show 0 amps.
Each one is changing a 12v 100 AH battery
I have to unplug and replug both the PV and battery in order to get it going again.
I would appreciate any help. I have been searching for 2 days for a solution and now I need to ask for help now
What batteries do you have and how old are they?
If they are lead based they may be dead.
looks like my problem is related to temperature. I put a thermometer in the shed and when it said it was 108f i realised my mistake. I had to cut down some diseased trees right next to the shed that was providing shade. as the day cools off the charges start working again. i will look into venting my sheds
