dckaldwell12
New Member
I put a solar system on my schoolie and i feel like I'm just riiight there but I'm missing something. I was just hoping someone on here might be able to point me in the right direction. I have 8 195 watt max 18 v and 10.83 amps. 2 strings of 4 wired in series parallel connecting at a 4 string 4*10A combiner box. The single string goes to a 60A charge control, That is wired up to a 3500 watt 24 volt 50-60 Hz inverter. I am using 4 12v 100 AH lithium batteries wired in series parallel. The problems i see are is the voltage goes from 40 to 24 as soon as you put in in the combiner box. The charge controller doesn't let me go higher than 17 on the over discharge voltage or the over discharge return voltage setting. Ive done alot of residential electric so i thought this would be easy but im way over my head so any ideas. Even if its just rewiring them in series or parallel instead of series-parallel. Id just bite the bullet and buy some more wire and try it but the solar thing as ended up costing alot more than i thought so im trying to to over buy if i don't have to. Thanks everyone and like i said any advice is very appreciated.