Hell I just got the boat in the water last week. I haven't run the engine
(3126 Cat) for more than a couple minutes so far. One battery is a month
old, the other was bought in November but connected at both terminals all
winter.
I've never charged either of them so too early to tell if I've got a short
or something.

Is it common knowledge that this engine requries a walloping amount of juice
to turn it over?
I've come from the gas V-8 world where a single car type battery worked
fine.

"Denny" wrote in message
ps.com...

Jim and Becky wrote:
I have two big 8D batteries (1550cca) each for a CAT 3126.
Is there a reccommeded battery charger for them?
My trusty Sears jobby doesn't seem to get them charged.

Either the batteries are bad, there is a constant drain on the
batteries, or the charger is bad.. Look, I keep 980 CCA batteries on
our bulldozers topped off with a 1 amp trickle charger... Your Sears
cheapie should boil th electrolyte right out of those batteries... Time
to get out a VOM and do some sleuthing... Get someone to help if you
are not familiar wiht electricity...

cheers ... denny