3 parallel Lead Acid strings

[dapago]

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i was asking that if the dot lines are not necessary, will the bank be well balanced?
if not, can we use method 4 and if so what will be the diagram?
sorry to bother you again

[dapago]

Those dotted are typically not used for lead acid
Typically, used for lithium ion

So I don

[NEOH]

Those dotted lines (bank balancing wires) are not used for lead acid
Typically, the balancing wires used for lithium ion, only

[dapago]

The EXAMPLE diagram below shows 8S3P ...
8 Batteries in each series string
and then 3 strings connected in parallel with equal length cable or copper bus bar

You will have 4S3P ...
4 Batteries in series for 24 volt = 4 x 6 volts each
and then 3 strings connected in parallel with equal length cable or copper bus bar

http://solarhomestead.com/deep-cycle-battery-maintenance/

Great! As I answered SunEagle, I think the diagram you shared correspond to the method 3 I shared (see my reply to suneagle) but lot more clearer for me Thank you very much!
What I can see as well on your diagram is that the batts are as well tied together (dot lines). That makes a lot of cables but if that will allow my bank to balanced properly then I will go for it.

[SunEagle]

hello. Neoh just sent me a diagram after you post. With the diagram I do understand it better now. The diagram NEOH just sent is similar to the method 3 I have shared but with 12 batts instead of 24. . The only difference with NEOH diagram (if I well understand it) is that the ends cables (thick red and black ones) will connect to a bussbar if I want to use them. Am I correct?

You are correct about the bussbar connection location.

[SunEagle]

+1 Nice diagram NEOH.

[dapago]

To clarify both of those diagrams you provided are 4 "batteries" wired in PARALLEL not in series.

To wire your 12 x 6v batteries you would wire 4 batteries in series and then do it again for the next 4 batteries and then the final 4 batteries.

You would then wire those 3 sets of 4 in parallel similar to what is in your diagrams but only having 3 "batteries" in parallel instead of the 4 shown.

You can either use a bus bars or the same length wire for the parallel connections.

Does that help you understand how to wire your 12 batteries?

hello. Neoh just sent me a diagram after you post. With the diagram I do understand it better now. The diagram NEOH just sent is similar to the method 3 I have shared but with 12 batts instead of 24. . The only difference with NEOH diagram (if I well understand it) is that the ends cables (thick red and black ones) will connect to a bussbar if I want to use them. Am I correct?

[NEOH]

The EXAMPLE diagram below shows 8S3P ...
8 Batteries in each series string
and then 3 strings connected in parallel with equal length cable or copper bus bar

You will have 4S3P ...
4 Batteries in series for 24 volt = 4 x 6 volts each
and then 3 strings connected in parallel with equal length cable or copper bus bar

http://solarhomestead.com/deep-cycle-battery-maintenance/

[SunEagle]

Hi there. Sorry I did not get your message. It seemed to me the diagrams I shared showed 1 string of 4 batts in serie. My issue here is to apply one of those diagram to wired 12 x 6V batts as 4 en serie and 3 parallels.

Maybe instead of applying on of those diagrams I shared I could use bus bars and balanced properly the bank. If the busbar method is acceptable for a perfect balancing, I just need someone to send me the wiring diagram to achieve it.

To clarify both of those diagrams you provided are 4 "batteries" wired in PARALLEL not in series.

To wire your 12 x 6v batteries you would wire 4 batteries in series and then do it again for the next 4 batteries and then the final 4 batteries.

You would then wire those 3 sets of 4 in parallel similar to what is in your diagrams but only having 3 "batteries" in parallel instead of the 4 shown.

You can either use a bus bars or the same length wire for the parallel connections.

Does that help you understand how to wire your 12 batteries?

[dapago]

Each on of those "batteries" in your diagram should be treated as one String of "4 batteries in series".
Each block is a 24 Volt Pack.
The picture shows 4 strings in parallel, you would have 3 strings in parallel.

Hi there. Sorry I did not get your message. It seemed to me the diagrams I shared showed 1 string of 4 batts in serie. My issue here is to apply one of those diagram to wired 12 x 6V batts as 4 en serie and 3 parallels.

Maybe instead of applying on of those diagrams I shared I could use bus bars and balanced properly the bank. If the busbar method is acceptable for a perfect balancing, I just need someone to send me the wiring diagram to achieve it.

[NEOH]

Each one of those "batteries" in your diagram should be treated as one String of "4 batteries in series".
Each block is a 24 Volt Pack.
The picture shows 4 strings in parallel, you would have 3 strings in parallel.

[dapago]

hello to the community,

I have a battery bank composed of 12x6V batts for a 24V solar system wired 4S3P.
I am a bit worried not to be able to balance properly the second serie of 4 batts (in the middle).

I have found 2 diargrams that allow to perfectly balance a serie of 4 + batts but do not know how to apply those diagrams to batts wired in parallel. Someone could help?

i have attached a picture to show the 2 options proposed. For the full article relating to those wiring, please refer to http://www.smartgauge.co.uk/batt_con.html 37340560-A503-40FA-8AC5-74075504847E.gif
37340560-A503-40FA-8AC5-74075504847E.gif

thank a lot.