"William Sommerwerck" wrote in message
...
"Ian Field" wrote in message ...

Aggressive pulse charging is spectacularly good at curing memory effect
in
Ni-Cd cells -- my experiments with Ni-Mh were somewhat less impressive.

Motorola introduced a pulse charger for Honeywell Strobonar
electronic-flash packs back in the '60s. "Modern Photography" hailed it as
a miracle -- it could actually bring near-dead packs back to life, and
significantly increase the capacity of "wilted" packs.

Several years later, I asked Bert Keppler why the product had disappeared.
"Uh... the battery packs blew up too often."

I have a pulse conditioner for Ni-Cd published in the current July/August
summer circuits issue of Elektor.

Its somewhat less aggressive than my original converted AT PSU, but the
cells remain cool throughout the treatment.