Solar charge controller weird voltage reading
Hello, I have 2 x solar panels installed. Each with 25V and 3,7 amps. The solar charge controller is called "CMT 30" and is supposed to be PWM. Now, if I read the voltage on the controller on ...
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OP, the concept is both battery and panel voltage should rise to 14.4v. Then battery voltage is held there for 10 mins (per info in above link), then the battery is allowed to drop to 13.6v and held constant. Measured panel voltage after the battery gets to 14.4v will rise as the panel is now operating at battery voltage and panel Voc On and off rapidly.
Adding loads at any time to the above charge cycle may extend any mode and/or not allow the controller to change modes for instance if battery v never gets to 14.4v then the next 2 modes never happen. A draw down from 13.6 float to 13.2v restarts the charge cycle.
Adding loads at any time to the above charge cycle may extend any mode and/or not allow the controller to change modes for instance if battery v never gets to 14.4v then the next 2 modes never happen. A draw down from 13.6 float to 13.2v restarts the charge cycle.
