Aukey CC-S1 4.8A Dual USB Car Charger for Smartphones - Black The AiPower Adaptive Charging Technology: Detects the input current of the connected devices to maximize both compatibility and charging speed up to 2.4 amps each port or 4.8 amps overall. (Does not support Nexus 5X and 6P or Qualcomm Quick Charge 2.0). Most Powerful: 24W / 4.8A total output with two standard USB output ports enables you to charge two tablets or phones with up to 2.4A simultaneously at their full speed. Guaranteed Safety: DC 12V / 24V supported. Sophisticated circuit design with over-heated, over-current and over-charging protection. Compact Design: The most powerful 2 Port Car Charger with the smallest size in the world (1.4 x 0.9 x 0.9 inches ). Package Contents: 1*AUKEY 24W 2-Port Car Charger, 1*User Manual, and full 18 Month Worry-Free Warranty.