FAQ

What's the reason that the fangpusun MPPT 100 50D controller can't be charged suddenly after being used for a period of time?

2021-01-28

The solar charging controller can't charge. You can use a multimeter to measure whether the two MOSFETs are short circuited. There are many reasons why the controller can't charge. You can consult our technical consultant to better help you.

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