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busterbrown73's avatar
busterbrown73
Explorer
Apr 16, 2019

Dual 6 volt GC2 batteries and charging characteristics

We just returned home to Michigan from a 24 day trip around the southwest. This was the first big test of our new dual 6 volt battery bank (upgraded from a single group 24 12 volt). As I have real...
2oldman's avatar
2oldman
Explorer II
Apr 16, 2019
3 tons wrote:
My two 6v Costco GC’s are rated at 210 amp/hrs per (other makes vary a bit)
Two times 210 = 420 - So you and I both agree Sir!!
BUT, once connected in series to arrive at 12v, the 420, is reduced by 1/2, so I’m now at 210 amp/hrs total.
Which is easier to remember:

Series adds voltage, parallel adds amps..or

Add them all, if series divide amps by two.?

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