Power dongle

Cameron Frazier frazier.cameron at gmail.com
Thu Jun 11 17:43:41 CEST 2009

On Thu, Jun 11, 2009 at 11:33 AM, Helge Hafting<helge.hafting at hist.no> wrote:
> The Digital Pioneer wrote:
>> Yeah, I'd kinda prefer one that's nigh unto infinitesimal and only lasts
>> a few seconds, but I'll search for emergency phone chargers.
> I guess the market for 15s power supplies is too small for anyone to
> make a product.
> You may want to improvise something like this:
> * Get a usb connector that fits
> * Stack up enough button-size batteries to get between 4.0 and 5.0 volts
> * Cut most of the wire off that usb connector. Bare the two wires needed
>   for power, and tape them to opposite sides of the stack of batteries.
> * More tape around everything, for electrical insulation.

Maybe use capacitors?  if you only need a few seconds... and you never
have to worry about replacing them.

Cameron 'Toaster' Frazier

More information about the community mailing list