1670w of Solar

I have 6 panels 270watts. I pretty much have to set up a battery bank as 48v correct.

wpmaura said:

I have 6 panels 270watts. I pretty much have to set up a battery bank as 48v correct.

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Not necessarily. You could do 12v or 24v too. It all depends on which solar charge controller (SCC) you get. The key will be to keep the amps and volts lower than the input limits specified by the SCC.

What are your batteries and/or SCC if you have them already?

4 12v 100 amp. The panels are 30v 9 amp. I read somewhere you size your solar charger by dividing watts of the panels by battery. So 1670/12 would be 128 amps. Or am I reading this wrong

Trying to hook this up to a 1200watt 12v inverter.

And I have a 60 amp epever mptt charge controller

wpmaura said:

The panels are 30v 9 amp.

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If this is your SCC:

then you have quite a few options. I would think that since your inverter is 12v you will want to have your batteries setup as 12v (otherwise your inverter is a doorstop).

Here are your SCC specs in the amazon ad:
Max Input Current: 60 amp; Max Input Solar Power: 1225W(12V); 2250W(24V); 3375W(36V); 4500W(48V); Max input Voltage: 150V;

If you setup your 4 batteries in parallel (all + connected, all - connected together)
you will have a 12v battery with the combined AH (not amps!) .. 400AH @ 12v.

For input to your SCC, you need to arrange the panels to be less that 150v (Voc) and amps less than 60. This is a hefty SCC so it will not be hard to meet the input requirements.

You cannot have all 6 panels in series as that would be 6 x 30 = 180v.

So lets look at 2 strings of 3 panels in series, then joined in parallel:
90v @ 9amps + 90v @ 9amps in parallel = 90v @ 18amps.

Does that make sense? Daisy chain 3 panels together (twice, and then combine in parallel).

Yep

^ what was posted above is the correct way to go about this. Dont worry about "over powering" the charge controller. EPever states in the manual you can go go up to 3x the wattage rated without damage as long as the max input voltage isn't exceeded.