Tired of packing multiple adapters? Tessan's Voyager 205 combines an AC outlet with seven USB ports, allowing you to charge ...

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 ...

If you want to charge your iPhone 12 using MagSafe, Apple recommends using certain 20W AC adapters — and they don't need to come from Apple, despite what you may have heard. We explain what the ...

Ventev recently introduced its EcoCHARGE wall charger that uses a tenth of the standy power while of the Energy Star no-load requirement: .03W vs .3W. Its list price on the Ventev site is $29.99 Let’s ...

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 ...

Design considerations for battery charging from USB include how fast a device with a discharged battery must operate with full functionality when plugged into a USB port; time allowed for battery ...