The M12 Compact Charger and Power Source is a way to charge your M12 batteries, as well as other electronic devices while “on-the-go”
Maximizing the portability and convenience of the M12 system, the product charges M12 Batteries through Micro-USB, and provides portable power to charge electronic devices. Using the included 3ft Micro-USB cable, the charger makes it easier to use and recharge M12 Batteries for a wide range of products on and off the jobsite. When combined with any M12 pack, the 2.1A USB output works as a portable power source for phones, tablets, and other electronics.
Found out more about the Portable Charger by visiting Milwaukee Tools’ website.