Description: The M18™ Power Source, compatible with both M18™ Compact and XC™ Battery Packs, features a powered USB port to charge cell phones, mp3 players, digital cameras, and other portable electronic devices. This adapter is also compatible with M12™ Heated Jackets, providing up to 18 hours of continuous heat on a single charge with an XC™ Battery Pack. Features: • Compatible with M18™ Compact and XC™ Batteries • Powered USB Port Charges Portable Electronic Devices • Compatible with M12™ Heated Jackets with the Expandable Battery Pocket Includes: (1) M18™ Power Source (49-24-2371)