Ericsson T-28/ T-28z/ T28-world/ T29/ T29s/ T29sc/ T66/ T200/ T300/ T306 car charger cigarette lighter adapter for cell-phone and cellular Phones. It's assembled with a Dynamic Integrated Circuit Chip (IC chip) which ensures that the unit does not overheat and your battery is not overcharged, thus prolonging the useful life of your battery. This car charger works with virtually all kinds of cellular phone batteries, including Lithium Ion, Ni MH, and Ni-Cad type batteries. One of it's great features is that it performs two functions simultaneously, i.e. provides power to the phone and recharges battery at the same time (thanks to the "smart chip" inside). What this means is that you get to use the phone while battery is b