On Mon, 3 Apr 2006 00:49:24 -0700, "Wet-n-Wild Bill"
wrote:

Planning to install a 3000watt inverter (not inverter/charger) on a boat
with twin outboards. The House batteries are maxed out with the
electronics. I thinking of installing a dedicated battery bank for the
inverter or utilize one of the starting batteries on the outboard. What do
you think

Bill

Personally I think that you should sit down and analyse what you need
an inverter for? Do you really, really need 3kw.
3000w is 300A after efficiency. a 300A load is 573A Peukert corrected
and will flatten a 450AH bank in .78hrs..
Recharging time with your setup ..... enjoy the boating!
First asses your maximum needs then do the calcs.
Pound to a penny (Sorry Dollar to a doughnut) that you need XXXWatts
for short periods of time. Work out the times and the loads. Do not
even contemplate Air Con, moving to England would be cheaper and
easier!!!!

Richard

Nb "Pound Eater" Parkend G+S UK