The AT T Zero Charger knows when to say when: sensing if its not connected to a phone, it can cut off the power supply from an electrical outlet. It will also work with phones from different manufacturers, ideally including Apple, Nokia and Samsung, eliminating the need for each new phone to ship with a charger.
– This May, “top green carrier” AT amp;T will begin selling the Zero Charger, an energy- and resource-saving charger for a variety of mobile phones.

The charger not only charges devices with better power efficiency, but
it can sense when its plugged into a wall but not also a phone, and
conseq…