At 12:23 AM 3/10/2005, Randall R Schulz wrote:
Mike,
On Sunday 02 October 2005 06:45, Mike wrote:
...
I wish they were available here. I've been wanting a hand crank laptop since I saw the wind up radio, wondering when or if they'd produce a wind up power supply for other devices..
Old meets new, eh?
I've heard that the Eton Grundig FR200 can charge a cell phone, but I can't see mention of that capability on their Web site catalog. Even if it's true, it's pretty clear it could not power a laptop. They say 180 rotations of the crank over 90 seconds charges the internal lithium-ion battery enough for 40 to 60 minutes of operation. You'd probably have to operate the dynamo constantly to power a device like a laptop.
It has been done for an old monoscreen toshiba (two or three years ago) was on the Australian Inventors program for use in P.N.G. as most of P.N.G. has no power and the teachers / Health workers needed something to hold their basic records (dos system from memory)