Need help configuring batteries right

[somawheels]

I need to make a 24v bat bank with 8 12v batteries.
I was thinking of doing it like this, does it look okay?



If anyone knows a better way of doing it, without using long pieces of cable, i love to know.
Thanks so much for reading.

[sensij]

What you have illustrated is essentially Method 2 described here:

http://www.smartgauge.co.uk/batt_con.html

Methods 3 or 4 would be better. Better yet, Make 24 V from 4 x 6 V batteries in series.

[somawheels]

ah, thanks for the link.
method 3 doesnt look worth the trouble, method 4 uses quite alot of cable (costs £££) and 3 connections/lugs on the terminals that go to load.
Dont think I have enough cable for method 4, hopefully, method two wont be too bad.

[Mike90250]

Which is less expensive, cables you buy 1 time, or
ruined batteries due to poor cable technique that need frequent replacing ?

[jflorey2]

ah, thanks for the link.
method 3 doesnt look worth the trouble, method 4 uses quite alot of cable (costs £££)

Method 3 just requires two additional busbars, and cable is cheaper than batteries.

[somawheels]

"cable is cheaper than batteries"

Ofcourse it is, but is it cheaper in the long run to to go with mehod 4, or method 2 when each of my 8 btterries costs £94?
also I am unsure whether its a good idea to be butting 3 batterry lugs on one terminal (and the most important terminals at that). There id a risk you will get a buildup of high resistance/poor connections there.

[SunEagle]

IMO it will be a crap shot to keep all eight of those batteries charged and discharged equally no mater if you use method 2 or 4. If this is your fist set the go with method 2 and be aware that your battery system may last 2 years but may not last anywhere close to what the manufacture has claimed they would. 4 set of batteries wired in parallel is a death sentence.