SODIAL(TM) Rubberized Retractable Car Charger for Apple iPhone 4 (Black) Rubberized Retractable Car Charger for Apple iPhone 4 (Black) Apple iPhone 4 can be used during charging. Smart IC chip recognizes a fully charged battery and automatically switches to a saver mode. Powerful: 12V, 1 A. Short circuit protection. LED shows power status.