12v vs 6v battery question
I've got to replace my 2 batteries on my TT. We typically camp with power so we don't boondock. We do have a residential fridge, with an inverter, and the batteries to get a little charge from the ...
Forum Discussion
SoundGuy wrote:babock wrote:
The difference in internal resistance between 2 6V in series and 2 12V in parallel is negligible assuming the overall capacity is the same.
It's as easy test to do. Take both types and put a constant load on them and measure what the voltage drops from a fully charged battery.
Therefore, not a reason to choose 12V over 6V batteries.
Prove it ... as I can clearly prove otherwise. ;)
As this article clearly proves 12 volt jug internal resistance IS considerable lower and therefore suffer less voltage drop under heavy inverter load than a similarly rated pair of 6 volt jugs. Hard to argue with facts. :Z
sadly the author is not comparing apples to apples.. his comparison is that of two deep cycle golf cart batteries vs an SLI battery.. of course the 12V battery wins.. it's designed to discharge at high current, the golf cart batteries are not..
the intended use is different. the author is full of chit.
