Right, I realize that, but that wasn't really my question. I know I can plug any ipod into a computer or into the wall, I want to know the voltage range though. Thanks.
The voltage range of what? The iPod? or the charger?
iPods come in three flavors:
Early ones that use FireWire to charge accept 12 volts DC over the appropriate pins on the dock connector, or the FireWire connector (on non-dock-connector-equipped iPods).
Later ones accept USB charging, which is 5 volts DC, again, over the appropriate pins on the dock connector (and they are not the same as the FW pins).
Somewhere in the middle, some (most?) iPods can accept either charging method through the dock connector. I don't know the whole list, but my 8GB "fat" nano, and my 40GB 4th gen iPod seem to go seamlessly between FW charging and USB charging...
No matter where you bought your iPod, it accepts power as above, by model. So the 1st gen Nano you bought in the US, is the same as the 1st gen Nano bought in the UK.
There were several different
chargers over the years, for the different FireWire and USB requirements, from a miniature white block (like what comes with MacBooks and MacBook Pros, but smaller), with either a FireWire or USB connector, and the latest one, which is the little 1" cube with USB on one side & 120v US prongs on the other. It's compatible with all iPhones, and Dock-connector-equipped iPods, and is worldwide AC power compatible 120-240 Volts AC, 50/60 Hz. And, no matter where in the world you plug it in, it'll put out 5 volts DC on the USB connector to charge your iPod/iPhone.
All power adapters have this information on them, either molded into the plastic, or on a label, and I'm 90% sure they also are all worldwide AC power compatible. I can't recall the last time Apple produced any product that was only power compatible in a single market, or made different ones for different markets. Even my old Mac SE can be switched to 240v...
Enough info?

