The charger will charge for a few minutes then stop. The Xtreme is a great speaker with a couple cool extras. Der fermentierte Pfeffer von Ankerkraut ist dabei der beste den ich bis dato probiert habe! This is an awesome charger. Just reviewing bc I want to clarify sizing is in US sizes. I gave it another star after reading the entire book. THEY HAVE A VERY SQUASHY FOOT BED SO THAT MAKES EVERY STEP NICE AND CUSHIONED. The case that stores the earphones is also a battery pack that could be used to charge the earphones wirelessly. Rack is not difficult to put on the car, and stays on nicely. If you have a wider foot they would be fabulous for you