The USB Charger's revolutionary design allows you to charge your Palm prganizer's battery from a USB(Universal Serial Bus) Port on any PC Or Macintosh. Whether you are in the office or accros s the country, your batteries will always be charged. Simply connect the USB Charger from your palm to your USB port, and charge your batteries from practically anywhere. There is no need to be concerned with draining your notebooks battery power. The USB Charger Draws minimal power from your notebook's battery while recharging your Palm's batteries.