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Old 03-26-2017, 12:45 PM   #20
foggysail
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Quote:
Originally Posted by FlyWright View Post
I wired 6 GC into a 660 AH bank via series-parallel. These 6 batteries fit in the boxes formerly used by 2 8Ds. This makes up my house bank. The third 8D box that formerly held an 8D start battery now only holds a single G31 start battery.

I thought I understood and started to reply. I understand 6 GCs and two 8Ds.

If you truly did as stated, I am still lost. 2 GCs are needed for 1 8D, 4 GCs are needed for 2 8D replacement

Yes, You can wire two GCs in parallel and series those two with another GC for 12v BUT YOU ONLY HAVE 230 AMP HOURS CAPACITY/BANK. If you have this wired as I just described, you are wasting 2 GC batteries. They are doing no good what so ever.

Now of course if you have 3 banks of GCs, that is just fine!!!

Also you could have just one big bank where there are three pairs of GCs connected in parallel for 690 amp hours

Whatever you have, if you're happy with it ..........
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