COACH BATTERIES

[Henry Jay Hannigan]

Hey Michael!
You are right.........it is Hotter in Phoenix.

What we need is new battery technology to help with this energy
crisis.
In the meantime, when those four 12 volt house batteries in your FC
crap out....just replace them with TWO six volt TROJANS T105's....you
will be very happy! LOL
I bet you like that FC...I really liked my 80FC31!!! They are
bulletproof!
Take care.
Hank
90SP36



--- In WanderlodgeForum@yahoogroups.com, "Michael" <mike.putz@...>
wrote:
>
> Now Hank.. I used that many words so you'd know I did NOT say 12v
is
> better than 6v. I said 12v batteries would be more appealing to
> older coaches with less room for batteries. They are easier to
deal
> with in terms of weight, maintenance, etc.. Unless you have a big
> nice tray that slides out to inspect your batteries...
>
> Michael
> 78FC35
> (hotter in Phx) hee hee hee
>
> --- In WanderlodgeForum@yahoogroups.com, "Henry Jay Hannigan"
> wrote:
> >
> > After 25 years as an elctro whizbang, u learned KISS and then
> > proceeded to take five paragraphs to say 12 volt bat's were mo
> betta.
> >
> > Reagardless, after my 67 yrs on earth, I/m sticking to my TROJAN
T-
> > 105 six volts for my "house," LOL
> > Regards,
> > Hank
> > 90SP36 still in hot Vegas
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Michael" <mike.putz@>
> > wrote:
> > >
> > > Very interesting Thread. Being an Electro-Mechanical
Technician
> > for
> > > Motorola for 25 years has taught me several things, as well as
> > owning
> > > bus conversions for over 20 years.
> > >
> > > 1) The definition of a Technician - an Engineer's only link to
> > > reality.
> > >
> > > 2) KISS - Keep It Simple Stupid.
> > >
> > > 3) The nice things about "standards" is there are so many to
> choose
> > > from. :-)
> > >
> > > I'm no battery expert but do know a thing or two about keeping
> > > equipment running for long periods of time. Some designs have
> > built
> > > in weaknesses (series circuits), and some have built in
> redundancy
> > > (parallel circuits). So 12v parallel systems are superior if
you
> > > view them from a "survival" stance. Sure you can throw more
> money
> > > and more batteries into a 6v battery system, but then there's
my
> > > point.
> > >
> > > Some batteries do have memory, some don't. Some can be damaged
> > just
> > > by charging with your engine's alternator, some don't. The
more
> > > expensive and high tech the battery, the more expensive and
high
> > tech
> > > the maintenance and charging system. Thin plates on starting
> > > batteries, thick on deep cycle, etc I do say stick to one or
the
> > > other; hybrids do both fair but is not specialized as the
> starting
> > > and deep cycle.
> > >
> > > I'm not a fan of putting thousands of dollars in battery banks,
> > huge
> > > inverters, and special chargers just to avoid running a
generator
> > to
> > > use my AC's down the road. That's what generators were
designed
> to
> > > do. What our Engineer friend was trying to say is that ANY
> > > connection is not as good as a straight wire. And if the
> straight
> > > wire is not the correct gauge even it can be an issue.
> > >
> > > Running 20 amps on an inverter is at least 200+ amps on the DC
> > side.
> > > I'm not going into details about efficiencies, etc.. but it is
> > > probably more like 220+ amps. At those currents even a small
bit
> > of
> > > corrosion, dirt, wrong wire size, or any other contaminant that
> > might
> > > cause resistance is devastating. Do you realize it would only
> take
> > a
> > > resistance of .005 ohms to loose an entire volt! It's very
easy
> to
> > > have that kind of resistance and not be able to find it,
> especially
> > > with the added connections of a 6v system.
> > >
> > > Running multiple batteries in a series/parallel config is
> superior
> > to
> > > running the 12v counter parts in parallel... IF..IF.. you only
> look
> > > at performance! If you do believe it is the BEST choice then
you
> > too
> > > are living in an ideal Engineers' world! There are Mean Time
> > Between
> > > Failure (MTBF) numbers that needs to be looked at. Even if the
> 6v
> > > golf battery is superior to a cheap 12v deep cycle it does make
> > > itself vulnerable simply by design. A bad 6v battery will
bring
> > you
> > > down. A bad 12v battery simply needs to be removed and you can
> go
> > on.
> > >
> > > If you compare EVERY THING, the cost, size, weight, and design
> > > limitations it doesn't make 6v batteries very appealing in my
> book
> > > for the small spaces available on the older coaches. Plus,
> unless
> > > you have special needs (long dry camping or running an AC) then
> > your
> > > bank will only be a few batteries.
> > >
> > > Using cheap Walmart MAXX-29 batteries for $76 a piece allows
you
> to
> > > have 3 batteries in parallel for a rating of 375 ah. The cost
is
> > > low, the space and weight are low. The area the battery
consumes
> > is
> > > 636 cu in each. The 6v equivalent (2 batteries) has an area at
> > > closer to 4003 cu in, over 6 times more area and how much more
> > > weight? How much more cost? I know you can try to justify
cost
> > over
> > > time, but with the prorating on batteries these days, we're
just
> > > renting them anyway so that has little meaning now.
> > >
> > > Bottom line is for most people who will not take the time to do
> the
> > > proper maintenance, invest big dollars in expensive
> > > monitoring/charging systems, or have special needs, then 12v
> > parallel
> > > systems ARE superior to their 6v counter parts.
> > >
> > > Hope I didn't put too much fuel on the fire?
> > >
> > > Michael & Tami
> > > 63FC35 - "Freedom Bus"
> > > 78FC35 - "Putz'n Around"
> > > 82FC35 - parts
> > > 82 GMC RTS
> > > Mesa, Az
> > >
> > >
> > >
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, Ron Thompson

> > > wrote:
> > > >
> > > > I can't help but comment on this one.
> > > >
> > > > Old and new batteries mixed would most likely have eddy
> currents
> > > flowing between the batteries due to deterioration of th
internal
> > > currents and would definitely have reducing effect on the AH
and
> > > therefore the cranking amps too.
> > > >
> > > > There are good points on both sides of this discussion. No
> need
> > to
> > > beat each other up.
> > > >
> > > > Oh by the way my qualifications are over 30 years experience
> > > electronics with an engineering background. Not a graduate
> > engineer
> > > but definitely schooled in several good engineering schools.
In
> > > summary I was a practical applications electronic tech.
> > > >
> > > > Just my two cents.
> > > >
> > > > Ron Thompson
> > > > 1995 WLWB 42'
> > > >
> > > > hippieforever3 wrote: >
I
> > > am not an engineer ( nor did I play one on TV) but what you are
> > > > > suggesting goes against avery article I have ever read.
Some
> > > were
> > > > > written by battery mfr. engineers.
> > > >
> > > > Show me one.
> > > >
> > > > > You are never supposed to mix old
> > > > > and new battreies in a battery bank!
> > > >
> > > > Why??? Please use science, physics or electronics or
> references.
> > > >
> > > > > 6 volt golf cart batteries will
> > > > > give you longer life than any common wet cell deep cycle
12
> > > volt.
> > > > They
> > > > > are sturdy and made to handle frequent discharge.
> > > >
> > > > It is very likely that the manufacturers design almost all 6
> > volt
> > > > batteries to withstand more abuse like 100% discharge,
> > temperature
> > > > extremes and vibration. However if you get a 12 volt battery
> > from
> > > the
> > > > same manufacturer, built to the same design spec and use it
in
> > the
> > > > same application, the 12 volt system will last longer and
> > > outperform
> > > > the 6 volt with less maintenance.
> > > >
> > > > Regards,
> > > > GPSGary
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Ron Thompson -Waller, Tx.
> > > > 1995 WLWB 42'Blue Bird
> > > > (cockyfox@)
> > > >
> > >
> >
>