"philo" wrote in message
> I just wired up a 12volt dc to 120vac sine wave inverter
> and connected five 12v sealed batteries
<font color=purple> > see pix <a rel="nofollow" style='text-decoration: none;' href="http://www.plazaearth.com/philo/battery.jpg</font" target="_blank">http://www.plazaearth.com/philo/battery.jpg</font</a>>
> I calculate that I have about 24 hours of computer backup.
> Of course...that's nuts because I can live without my computer for 24
> but now realize I could not live without coffee for more than 8 hours.
> My inverter is only 750VA and my coffee maker is 900watts (gasp).
> So its back to the drawing board!
What you need is one of the Trace 3600VA inverter/charger units sold for RV
usage. They are available for 12V, 24V, and (I believe) 48V battery packs
with 24V being the most common on big bus-type RVs. One of these will easily
run a window-type AC which you see mounted in the fiberglass housings on the
top of so many conversions.
[Knoxville, TN, USA]
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