"ASAAR" wrote in message
...
On Wed, 28 Sep 2005 11:08:05 -0700, Chuck Olson wrote:
Thanks for the information. Now I'm curious as to how Flex
Negative Pulse Charging actually works. I imagine that since it has
a name, it should also have a description somewhere. Do you know if
it's a somewhat generic term, of if it's only used by one charger
manufacturer?

Have built a so-called reflex charger (that's the term to google for) myself
some years ago, based on the ICS1702 chip made by www.galaxypower.com (can't
reach their website today). In the datasheets of their ICs, the reflex
charging principle is described in detail. As far as I remember, a cycle
takes around 1 second and is made up of about 950ms forward (charge) current
and about 20ms reverse (discharge) current. In between there are short
pauses to make sure one source is shut off before the other one is
activated. These pauses are also used to measure the open-circuit voltage of
the cell. The reverse current is around 2.5 times the forward current. My
results with reflex charging were good. Today I'm using a commercial charger
made by www.orbitronic.de that can also do reflex charging.