From the work site to home, our Cat power packs are made rugged and guaranteed to last, with an all-round bump guard for maximum protection. The yellow back-lit ports help with fumble-free connections in low light and LED status indicator light is easily visible. Equipped with Adaptech smart technology, this smart chip automatically detects the power requirements of your device and adjusts output accordingly. When your device reaches full battery, Adaptech automatically stops the flow of power, helping prolong the life of your battery. Take it with you. Get it a little dirty. Maybe even rough it up a bit. Don't worry, these adapters are BUILT FOR IT.