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joppe-hagg avatar image
joppe-hagg asked

Mppt 75 15 no charge. 19v PV, 12v on battery

160w solarpanel. Brand new regulator. Was working fine with other regulator. 3xbatteries. As soon as I connect PV the voltage drops to same ad battery on PV. 12.4 on battery and 19.4 on PV

battery charging
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JohnC answered ·

Hi Joppe. Any chance you've the polarity round the wrong way? On either batts or panel..

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