COACH BATTERIES

[Don Bradner]

It takes more battery to get more total AH. In my case, the original batteries
were Group 24s, and there was no room to go sideways but plenty of overhead.
6-volt GC batteries are taller, so more battery in the same physical length and
width. Typical Group 24 will be 160-170AH for two, and GC batteries 210-220AH
for two (using two because 6-volt must always be in pairs).

CCA is not particularly related to life or total Amp-hours - depends on how they
engineer the battery. 6-volt GC batteries do not have particularly high CCA
values, but with enough of them that does not matter - 6 of them turn an 8V92
over nicely.

Sealed is a factor of battery type, and 6-volts are made in most (all?) types.
If the type is sealed, the GC battery will be sealed. I have Lifeline AGM
batteries, just as sealed as any other AGM. Never did like checking/topping with
water.

Don Bradner
90 PT40 "Blue Thunder"
Eureka, CA, headed East in a week if the doc gives the OK (fingers crossed!)

On 8/8/2008 at 9:24 PM wilfreddrabble wrote:

>Jack, The reason for using a pair of 6 volt golf cart batteries as
>house batteries to replace a 12 volt battery is that the golf cart
>batteries are supposed to be more robust and also able to take more
>charge/discharge cycles.
>
>Most of the time, the pair of 6 volt batteries wired together in
>series have a higher amp hour rating than the battery they replaced
>as well, a nice bonus.
>
>So far as I know (not that I have any personal experience here), most
>RV'ers who have tried this setup have been more satisfied with it
>than with their previous 12v house battery.
>
>The only downside I know of, aside from extra cost and trying to find
>the extra room for those big batteries is maintenance: you have to
>top up the golf cart batteries with distilled water regularly. As far
>as I know, they aren't "sealed".
>
>John Alldredge
>
>
>--- In WanderlodgeForum@yahoogroups.com, "Jack & Donna Smith"
> wrote:
>>
>> I need some info for the Batteries in our 1973 Gas Coach.. When we
>> bought it, there were 2 WalMart Maxx 29 Deep Cycle Marine
>Batteries,
>> 875 cranking amps & 675 cold cranking amps. One was installed in
>the
>> front battery compartment by the drivers seat & one in the Gennie
>> Compartment. I installed another of the same "Up Front", and
>another
>> under the entry steps, in the places provided. These are all 12V
>units.
>> Now they are about ready to be replaced.
>> Question is: Replaced with what?
>> My Coach is stored in a Storage area without connections of any
>kind,
>> and all the batteries have the knife type disconnect switches.
>> Would several 6V type be better for my use? AND WHY???
>> Also, is a smaller size battery, (of same cranking amps) any
>different
>> from a physically much larger unit.. Will the larger one have
>> more "Innerds" and last longer between charges, or have a longer
>> battery life.??
>> Most of the camping will be with hookups, but occasionally we will
>> DryCamp for a couple of days.
>> Jack Smith
>> 1973FC31
>> SoCal
>>
>
>
>
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