Been trying to charge from 200w panel but doesn’t register sometimes or a fault comes up about calibration, the panel is 18v output and the input point is 35 to 150v on BLUETTI, it is brand new but may need a firmware update but couldn’t find a serial number either ok thanks
You state that your panel output is 18V but your Bluetti requires a minimum of 35 volts. Since 18 is less that 35 you will need to increase the voltage by adding another panel in order for charging to occur.
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Thanks Scott will try another panel on it