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My system that I want to build in my 12v/120v RV...
Four 315 watt mono panels
Eight 280ah LiFePo4 cells
What solar controller would I need for these setups below?
I also want a 3000 multiplus but I have no idea if I should order a 12/3000 or a 24/3000?
Does a 24 charge 24v batteries and output 12v to the RV or do you need a 12v for that?
How would you setup this system? Comments appreciated. Thanks.
Hi @Lukevader
Run your panel specs and Vbat options through this calculator. https://mppt.victronenergy.com/
What you'll find is that the recommended mppt size will halve @24V. There's a $$ saving there alone, along with smaller wires.
Spend some of the savings on an Orion 24/12 dc converter for your 12V loads. Like one of these: https://www.victronenergy.com.au/upload/documents/Datasheet-Orion-Tr-DC-DC-converters-isolated-100-250-400W-EN.pdf
I'd go 24V. In a heartbeat..
