question

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I have a MPPT 75/10 producing an output of 16.3 volts ?

I have a MPPT 75/10 connected to 2x40 watt 12v solar panels in parallel, and then to 2 x 12 lead acid batteries. It seemed to be running fine for the last 2 years , but It has just started producing an output of 16.3 volts - why would this have happened ?

overvoltage
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2 Answers
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pontus answered ·

It happened me once when I connected the solar panels before the battery. It was easyliy fixed by disconnecting everything and let it sit for 10 minutes before connecting the battery first and then the panels.

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james-pask answered ·

Thanks , I disconnected both panels and batteries, left it off for 20 minutes - reconnected , now supplying 13.4 volts , all sorted .

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