I bought two 2nd hand 200W 24V panels (they were cheap) with the aim of charging a couple of 12V LiFePO4 batteries and setting up a small PV system in my workshop.
I jumped onto the Renogy store and ordered the batteries, a Rover 20A MPPT controller which should handle the ~8A max output of the panels and a 1000W 12V / 240VAC inverter. After learning a little more about real-world PV I find that a 20A controller is too small to charge a 12V system from 24V input (still don't know why that is) and I should have ordered the 40A one.
My two options seem to be to charge the batteries in series and take the hit on the inverter - I'd have to get a 24V / 240VAC one or get another converter.
What's the best way to go?
I jumped onto the Renogy store and ordered the batteries, a Rover 20A MPPT controller which should handle the ~8A max output of the panels and a 1000W 12V / 240VAC inverter. After learning a little more about real-world PV I find that a 20A controller is too small to charge a 12V system from 24V input (still don't know why that is) and I should have ordered the 40A one.
My two options seem to be to charge the batteries in series and take the hit on the inverter - I'd have to get a 24V / 240VAC one or get another converter.
What's the best way to go?