My wife has an iPhone 3GS and she's lost the AC charging adapter. I told her I thought all AC adapters for USB devices were equivalent (we have several others lying around the house). She is afraid of ...

So I've tended to assume, possibly stupidly, that if a device relies on a USB power connection at all then any old AC->USB power adapter is fine to use for it and substitutable for a computer USB port ...

A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and ...