Big Iron wrote:
> I'm about to instal dual Optima yellow top batteries in my sweet young
> bride's 06 Rubicon
> (Kate).
>
> My question is, do I run them paralell or do I seperate them out, using
a
> charging system
> isolator, running the jeep on one battery and the accessories on the
> other?
Biggest issue I have with the parallel setup is the charge problem - it's
hard to get two batteries with identical charge curves so one or the other
will never get a full charge or one will be over-charged and gassing
badly.
The only advantage to a straight parallel setup is increased starting
current (max drain). Years back, I had a dual lead-acid battery setup in
a
jet airplane where the batteries were paralleled for start then charged
individually. The switching system failed after start and the gas from the
over charged battery blew - left a large open hole in the nose. The
engine
compartment of a Jeep is no where near as enclosed as this was and I'm
sure
batteries have improved a bit in the last 45 years, but why tempt Murphy?
And like Mike said, direct parallel means BOTH batteries go dead at the
same
time - oops!
--
Will Honea
--
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