How to wire 6x12v batteries in series parallel

[Dayrobber]

I just need a diagram if possible on how to wire 6 12v batteries in series parallel to 24v system with minimal voltage drop.
Thanks again. LATE.
Dayrobber.

[Mike90250]

i don't have a way to sketch it, but you will end up with 3 parallel strings which is tough to get equal loading of all batteries. 2 strings is much easier.

If you have not yet bought batteries, consider using four 6v batteries in series for 24V Simplest is golf cart batteries, cheap. 3-5 year life, and you get 24v 200ah. If you need more, parallel a 2nd series string and you get 400ah. Need More ? go with larger batteries, floor scrubber is another, cheap common 6V 400ah battery, and you can get that in one series string

here's the link to the parallel battery wiring issues http://www.smartgauge.co.uk/batt_con.html

[chrisski]

Some of my lessons learned from my first wiring I did for batteries was keeping the cables short as possible I found that the 2/0 welding wire bent better then the THHN 2/0. One thing I wished I’d done is look at using 90 degree terminals instead of standard terminals. Some of the connections could have been 4 inches of 2/0 wire instead of the 12” of cable it took to go the same distance.

For my configuration I used 5 feet of 2/0 wire for 2 series 2 Parallel four six volt batteries to 12 Volts total. It’s the 400 ah configuration with golf cart batteries talked about above. I think with those 90 degree terminals it would have cut the wire distance to a total of two or three feet.

I found it amazing how much voltage loss there is in low voltage higher amperage DC.