An interesting one for heavy-duty uses, Harvey. However, being a cynical
old cuss, I wonder whether it works! They are heavy on words and light
on reproducible facts and figures. What worries me is that they are
talking of using the same technology for other battery types, such as
NiCd, which don't suffer from sulfation. Another potential problem that
I hypothesise is that, for a given average charging current, there will
be losses due to the Debye-Falkenhagen effect which will cause an
increase of temperature for a given number of Ah of actual charge. The
higher the pulse frequency and the lower the mark:space ratio of the
pulse, the greater this problem may be. Always a big problem with non-DC
ionic conduction! Just a thought...

Brian

Harvey Miller wrote:
>
> Two benign battery technologies: zinc-air and lead acid.  The latter fits
> because it is so easily recyled.  But there is a new development that
> improves life expectancy 66% or more.  It is called the Can-PULSE System.  It
> uses high frequency, high current pulses during charging to break down
> hardened, crystalline lead sulfate.   Information is available at
> <www.canadus.com>.  I have no personal interest, just intrigued by a
> constructive approach to conservation.  Also it another blow against the
> misbegotten anti-lead bugaboo.
>
> Harvey Miller