Premium Rapid Car Charger (with IC CHIP) for Samsung SGH-A437 / A436, SGH-A727, SYNC SGH-A707, UpStage M620, SCH-U740 Alias Intelligent IC chip inside recognizes a fully charged battery and automatically switches to a saver. Plug never heats or overcharges the battery. LED charging indicator light shows charging status. Quickly charges most batteries. High Quality Durable Unit and Cord. Comfortable ergonomic design.