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Hello, the purchased MPPT 80A solar charge controller has not been used. What is the reason for the direct connection PV not working?

Hello, the purchased MPPT 80A solar charge controller has not been used. What is the reason for the direct connection PV not working?

2021-02-25

There are two reasons for this: 1. You may have adjusted the potentiometer; 2. The MOS tube is burning.


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