MPPT controllers work just like a converter/charger. A 45 amp charger takes 120 volts at 5.25 amps and converts it to 14 volts at 45 amps.(excluding power factor and other losses). A MPPT controller will take 24 volts at 5 amps and convert it to 14 volts at 8.6 amps. Watts in=Watts out. No magic. No smoke and mirrors.
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