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.Key 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