I have a multi charger from APC which came with a laptop backpack or case a
couple of years ago, it actually has a variable voltage output (user set not
circuitry) and a usb slot on the brick portion which also came with a short usb
splitter cable allowing two usb powered devices to be charged from the brick,
it has powered my R-40 for at least 5 years, and came with multiple adapters
for Air/Car/Home, as well as multiple tips for the laptop end. I don't know if
it is still made, but I assumed that their experience in battery backup and
power conditioning made theirs a safe replacement for the standard Thinkpad
brick.
Steve Finkelstein
_______________________________________________
Thinkpad mailing list
[email protected]
http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
