Griffin PowerJolt Plus 2.1 Amp for AT&T iPhone 4

The Griffin PowerJolt Plus plugs into your cigarette lighter or 12V accessory socket and connect the coiled dock cable to your iPhone or iPod. While it's charging, PowerJolt Plus pops open to reveal another 12 volt socket, built right in.

Features:

• Charges your AT&T iPhone 4 from your 12V accessory socket
• Includes its own 12V socket to use for other devices while charging
• Built-in SmartFuse for circuit protection
• Coiled cable avoids tangles

Technical Specs:

• Input Voltage: 12 to 16V DC
• Output Voltage through connector: 5V DC
• Output current through connector: 2.1 Amp
  
• PowerJolt Plus Power Port output voltage: 12 to 16 volts DC