12V or 6V
I have a 5er that came with a single 12V RV battery. I am thinking of replacing it. What I don't know, given the same amperage, would I get better service from 2 12V batteries in parallel or 6 6 V b...
Forum Discussion
rlw999 wrote:
Why is that? What's the difference between 2 6V batteries in series and 2 12v batteries in parallel for running an inverter?
6V batteries are usually "golf cart" batteries. They are designed specifically to provide power for a longer period of time compared to an "engine starting" battery which just has to give a burst of power for a short time.
You will have a hard time finding this data but, 12V batteries, even one that are labeled "RV/Marine deep charge" have a shorter life than 6V "true" deep discharge batteries when you repeatedly discharge them to <80% and then re-charge them. It is worse, if you discharge them to <60%.
There are "true" deep deep discharge 12V batteries, but they are difficult to find and expensive. You will likely only find them at a golf cart store or at a solar power store.
