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reijo_ruotsala@hotmail.com avatar image
reijo_ruotsala@hotmail.com asked

Why is my MPPT not charging?

Why is not my solar panel charging for last to days? When I disconnect the panel I have over 22V from it and when I connecting it back to the regulator the voltage drops to a little bit over 1V measuring whit a multimeter. The app is telling me about the same voltage that's in the batteries. Last two days it's been a lot of sunshine so that can't be the problem.

voltage
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klim8skeptic avatar image klim8skeptic ♦ commented ·

One would suspect a high resistance joint/terminal/fuse somewhere.

I have over 22V from it and when I connecting it back to the regulator the voltage drops to a little bit over 1V measuring whit a multimeter

Perhaps reverse polarity connection, or faulty solar panel?

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markus avatar image
markus answered ·

Hi,

if you did not change anything on your installation and see these symptoms, there is a chance that the unit is broken unfortunately. It would be best to talk to your dealer.

Best Regards,

Markus

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