The centaur 12/40 charger fan hums all the time when plugged into the mains. Is it a feature or a fault?
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Can the MPPT function of a charge controller be turned off?
Can the Centaur charger be used as power supply without batteries?
Is it possible to connect two DC chargers in series to charge at a higher voltage?
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Pheonix Smart IP43 charger connection to temperature sensor?