Sorry man, but it ain't happening. Conservation of energy still applies to
us ordinary folks.

dh@. wrote in message ...
On Wed, 21 Nov 2007 11:16:23 -0800 (PST), Tim wrote:

That's like discovering perpetual motion...

That's what I told the dude that mentioned it. But he insisted
it's a common practice, so I thought about how it possibly
"could" work...maybe. IF the electrons in the battery are
just being moved from one side to the other, which is the
impression I got of how a battery works when I read about it
in detail years ago, then it seemed possible that maybe the
method would just move them back around to the positive
side again if there was any truth to it. Whether it would work
or not my impression is still that a battery charger doesn't
really add electrons to the battery, but just shifts them back
around to the other side of some barrier...I forgot what it's
called over the years.

It's not going to happen.

Some of the best inverters are only about 75% efficient, plus losing
efficiency though a battery charger. You'll actually be draining the
batteries ... at a quick rate.

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?