In Joel R. Donalson's article "How to Select the Right Battery" reprinted
at
http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind9708&L=vanagon&P=R16592&D=0&H=0&O=T&T=1

He writes,

Deep-cycle batteries are designed to deliver moderate amperage over long
periods of time between recharges. They are designed to be cycled
(discharged and charged) hundreds of times, with plates that are more
robust than engine-starting batteries to withstand the frequent deep
discharging they must endure.

Engine-starting batteries, on the other hand, must deliver high amperage
for relatively short bursts during cranking. Their design includes more
numerous but thinner and more porous plates (compared to deep-cycle units)
to present more surface area for higher current output over short periods.
Starting batteries used in deep-cycle service will typically last only 50
or fewer cycles.

--
Mike "Rocket J Squirrel" Elliott
71 Type 2: the Wonderbus
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
KG6RCR

On 5/19/2008 10:49 AM Jamie Fitterer wrote:

> Hello,
>
>     I am looking for a new battery for the replacing the main battery.  I have been reading and some places say to use deep cycle and some say only use deep cycle battery for the auxillary battery.
>
> Can anyone simplify this for me?  I am having trouble finding a replacment battery anywhere in my town.
>
> 1.  What is a good battery for the main battery?
>
> 2.  Why use a deep cycle battery for the auxillary?
>
>
>
>
> "Prohibition will work great injury to the cause of temperance. It is a species of intemperance within itself, for it goes beyond the bounds of reason in that it attempts to control a man's appetite by legislation, and makes a crime out of things that are not crimes. A Prohibition law strikes a blow at the very principles upon which our government was founded."