question

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scotfor asked

mppt 75/15; bulk voltage going to over 16v when 2nd panel added

Happens when panels are parallel or series. Ambient temp is about 25C.

Connected to an AGM battery which starts to boil as soon as voltage goes over 14.4

If 2nd panel is disconnected, voltage will not drop. Both panels have to be disconnected to reset and then when one panel is again connected it goes to normal bulk voltage.

battery charging
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1 Answer
Paul B avatar image
Paul B answered ·

Check the voltage setting using the bluetooth app Victron connect as the regulator maybe set to 24 volts

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