Good day,
I have a single panel with the following specs:
Pmax: 260W
Voc: 38.4V
Vmp: 30.72V
Imp: 8.47A
I am looking to get a SmartSolar MPPT 100/20 charge controller to charge a single 12v 100A Gel battery for my caravan. I was told by the technical support chap at the local distributor that the Vmp of 30.72V is too low for the MPPT charger to work effectively at charging a 12V battery and that I would require a Vmp of at least 60 - 70V to make the SmartSolar 100/20 work efficiently - is this correct?