Questions on series/parallel battery bank

[Damehomestead]

Good morning all,

I have 4 100ah agm about 8 mos old. Currently my bank is wired in series, 24v 200ah. Have 2 charge controllers connected to the system with 3 315w panels in series on each controller.

would It be a bad idea to wire my batteries series/parallel to get the full capacity out of my batteries or would I be doing myself a disservice?

I’d like not to spend the extra 3k right now on more batteries and just use what I have as they are basically new, I also on the other hand don’t want to drastically reduce their life span.

thank you in advance for any light you can shed on the situation.

[Ampster]

You are getting the full capacity out of your batteries. Four 100 Ahr batteries is 4800 Watt hours. (48 x100=4800) if you wire them in parallel you have 400 Amphours but only at 12 volts so the power is the same 4800 Watthours (12 x 400 = 4800)

[Mike90250]

Leave it at 24V. less overall losses in the the system & same amount of power

[chrisski]

Can you confirm this is four batteries, 6 volts each wired in series? At first I did the math as 12 volts, but that did not work out. I’m just now starting to understand what mike is saying about the losses. I’m wondering if you redid the batteries if you would need to get thicker battery cables.