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 ...

Unless you’re particularly fond of having multiple types of batteries and chargers, you’d do well to make sure all your portable power tools are made by the same company. But what do you do if ...

Apple has removed the power adapter from all iPhones it sells, so you need to bring your own. If you’ve been using Apple’s feeble old 5W adapter, it’s a perfect time to upgrade. Apple now ...