First time posting in this form, so first off hello and thanks in advance for any assistance provided.
I have the following so far:
2 180 watt 24v panels
Outback mx60 charge controller
The panels have been installed, and have them in series so it will run via a 10 gauge wire, 15 feet to the battery bank at 48 volts.
Thats where I am at so far, dont have the batteries or inverter yet.
Here is the biggest issue im concerned with - I am going to have a 500 watt inverter set up on this, will only be used to run a flatscreen and a 50 watt computer. Will never exceed 500 watts.
I plan on getting 8 batteries for the bank (would like to do 24 volt setup with 24 volt inverter if I can find a 24 volt for 500 watts).
Since the charge and inverter load will be so small, can I use smaller gauge wire for the battery bank? Everywhere I have seen it looks like 2 gauge or bigger wire is used, but thats pretty expensive for that many batteries.
I have no problem buying the larger wires, dont want to "skimp out" BUT I dont want to buy huge battery wire when I dont have to.
So ya, what size of wire could I get away with, when using 24v and approx 15 amp dc to charge, and then max load of 24v and 20 amps?
Seems like linking the batteries that same 10 gauge wire should work with such low charge and load. Is my logic correct on this?
Another couple of side questions:
If I use two 10 gauge wires to connect one battery to another, that is the same as using a single 5 gauge wire correct?
Im about to pick up my batteries. I was thinking of using the costco 6 volt 210 AH batteries for the bank. I found that Interstate down the street from me sells deep cycle 12 volt 110 HR batteries for 35 dollars. They are reconditioned though. Would these be fine to use, especially in such a small system? I could get double the bank for the same price as the costco batteries just dont know about the reconditioned part.
Ok thanks again!