On Sun, 16 Mar 2008 08:52:09 -0700, Gunner Asch
wrote:

On Sun, 16 Mar 2008 09:47:13 -0500, Ignoramus4762
wrote:

A marine battery is not well suitable for starting motors, I am
speaking from experience. It may even work sometimes, fooling you into
thinking that you can just use it. until you find that sometimes it
cannot.

I would go with a pickup truck battery.

i
Now Ive got a battery question for the group.

My Lincoln Ranger 9 welder doesnt have a battery yet. Ive not had the
time to resolve the charging issue yet, but will shortly.

What size battery is proper for an 18hp engine? I put an Autozone
garden tractor battery on the 4000 watt Onan a couple weeks ago, when
I skid mounted it and set it up for home backup power. It starts the
Onan pretty well, and also the Ranger 9. But Id like to know what is
the proper size.

Gunner

If space permits, use the most common size of automotive battery.
That'll have ample capacity and will be the most battery for the buck
because they sell a bazillion of 'em.

Keep it charged with a trickle charger. Automotive batteries don't do
well if not kept charged. If that is impractical, then I'd go with a
marine dual-purpose battery for about $69. They're sorta deep-cycle,
will tolerate discharge much better.