wrote:
On Wed, 12 Nov 2008 11:03:51 GMT, Tom Francis - SWSports
wrote:

On Tue, 11 Nov 2008 20:53:34 -0800, "Calif Bill"
wrote:

"Tom Francis - SWSports" wrote in
message ...
Stumbled across this:

http://home.comcast.net/~ddenhardt20...esulfparts.htm

Pretty cool.
My chargers got one built in.
So do mine, but I thought it was pretty interesting.

Many smart chargers that have a "desulfanator" feature really just
charge at an unusually high voltage for a period to "cook" the battery
a bit. Not the same as pulsing, and not nearly as effective.

I wonder if either method has the potential to destroy electrical or
electronic devices attached to the battery.
I had a camper that had the high voltage type and it boiled the water
out of the batteries quickly. I didn't have the problems that you might
expect like burned out lamps. Progressive Dynamics was the brand.