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Need help understanding series parallel

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  • Need help understanding series parallel

    I have four 6 volt 225 ah batteries right now in series. I'm gunning to get set up in series parallel and i've read and watched a bunch of articles and vids trying to get a handle on it. every time i think i get it I see something a bit different that throws me off. My system is a 24 volt inverter and i'm going to get 4 more batteries for a total of 8. Can anyone show me exactly how these batteries should be set up for 24 volts in series parallel?


    take this video for example, https://www.youtube.com/watch?v=VYhH...etailpage#t=94

    if i just set up all 8 batteries like what they're doing, i would get the results i want right? Or is there more to it than that?

  • #2
    I didn't watch the video, but the series parallel wiring you are describing (diagonal wiring) is also illustrated here. One of the illustrations shows exactly the 8 x 6V configuration you are interested in, yielding 24 V. Gory details on the effects of unequal resistance are explained here.

    With four new batteries and four older ones, I would guess you want to split them up so that you have two of each in each series, but others with more experience may have other ideas.
    CS6P-260P/SE3000 - http://tiny.cc/ed5ozx

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    • #3
      Originally posted by sensij View Post
      I didn't watch the video, but the series parallel wiring you are describing (diagonal wiring) is also illustrated here. One of the illustrations shows exactly the 8 x 6V configuration you are interested in, yielding 24 V. Gory details on the effects of unequal resistance are explained here.

      With four new batteries and four older ones, I would guess you want to split them up so that you have two of each in each series, but others with more experience may have other ideas.
      24vsystem.gif

      From the diagram and what they're saying, this set up would only get me 450 ah, granted this may very well be enough for my needs if i play it smart until the bank kicks the bucket but if it's at all possible to get more ah i'd like to take a shot at it. If this is the case, would there be any way to bump up the ah a little more like by connecting all the positives to positives on the left of the pic and negatives to the negatives on the right? or would that case a major problem?

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      • #4
        450 Ah at 24 V is the most you can get from your batteries.
        CS6P-260P/SE3000 - http://tiny.cc/ed5ozx

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        • #5
          Originally posted by sensij View Post
          450 Ah at 24 V is the most you can get from your batteries.
          I see. Looks like I misunderstood how the ah stacked.thanks alot, you saved me from screwing up. I'll be getting batteries with more ah after these set go down.

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