On Wed, 21 Nov 2007 14:08:45 -0500, dh@. wrote:

Someone told me it's possible to charge an inverter
system's batteries using a battery charger plugged
into the inverter that's being run by the batteries
you want to charge. Is there any truth to that, and
if so, how does it work?

It doesn't.

Perpetual motion.

In short - bull feathers as my maternal Grandfather used to say in
polite company.