Don't wait to charge your devices on the go. Each USB port on the Energizer 38W car charger offers fast charging for most devices. Power Delivery adds more intelligence to the charger, allowing it to detect the connected device. This enables the charger to deliver exactly the amount of energy needed for charging in the shortest time possible. The Quick Charge™ technology, developed by Qualcomm, allows phones and devices with Qualcomm Snapdragon™ processors to charge at lightning speed. It can charge the batteries of enabled devices up to twice as fast as conventional charging, giving you enough energy and time to do more.