This rechargable power pack could output any voltage at any amperage, up to that used by the highest-usage cell phone. It would have an adaptable clamp to attach to the outside of the phone and include a number of wires, each which could be set to a certain output or output pattern. The clamps and power leads would be configurable to fit common phones, or be user-configured for new settings. It would come with a variety of plug-in adaptors, and have a piece of plastic the user could bend to fit a plug.

A wiki-style web site would list necessary configurations. It would be powered by standard batteries, a hydrogen cell, an AC/DC adaptor, or a solar panel. Finally, freedom from the lock-you-in battery selling bastards!
-- Voice, May 02 2008

Sharper Image sells a crank up flashlight that also charges almost all cell phones. There is a battery company that sells one that does laptops and cell phones.
-- MisterQED, May 02 2008


Sounds obvious, but I haven't seen anyone making such a thing, so [+]. I've wondered in the past if I could use the NiCad/NiMH packs radio-controlled cars use, with a voltage converter to power all the electronic gadgets I carry with me these days.
-- Srimech, May 02 2008


//haven't seen anyone making such a thing//

I wonder why...?
-- Jinbish, May 02 2008


Presumably, it would have its own back-lit LCD and keypad to allow you to enter the appropriate parameters.
-- coprocephalous, May 02 2008


You hurt my head.

they have a variation on this, its a USB battery pack. plug any usb charger cable whether it be an mp3 player a phone or a usb light, it'll power it.
-- Arcanus, Jun 09 2009



random, halfbakery