Re: A battery bank of 6v and 12v together ?

On Tue, 24 Jun 2008 22:35:15 -0700, "Isaac Gutman M.D."
<igutman1@xxxxxxxxxxxx> wrote:

Hello all.
It may be a stupid question but please bear with me.
I have 2 Trojan 105 6v and no more room in the battery compartment.
Can I connect one 12v parallel to the two 6v?
I charge them with a 2.5 kw inverter/charger, can the charger be "confused"
by this setup?
Will the efficiency (Is it the right word?) be screwed up ?
Any help will be appreciated,

If the batteries are generally of the same chemistry (no mixing wet and AGMs,
for example) and they're in similar condition then it'll work fine.

I'd do this test before final commitment. Charge both sets of batteries
fully. Allow them to sit for a day. Measure their voltages. If they're
within about 0.05 of each other then they're completely compatible. At about
0.1 volts, the lower one may cause a minor amount of discharge of the higher
one. Still no problem unless you let the rig sit for months at a time. Above
that voltage difference, I'd not do it.

John
--
John De Armond
See my website for my current email address
http://www.neon-john.com
http://www.johndearmond.com <-- best little blog on the net!
Tellico Plains, Occupied TN
If the letters PhD appear after a person's name, that person will
remain outdoors even after it's started raining.

.

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