The M12 Cordless Power Port from Milwaukee Electric Tool Corp. charges up to five small electronic devices, two at a time, on a single battery pack. The portable charger and power supply is compatible with most small electronics such as cell phones and MP3 players that draw up to 3 amps through a DC outlet or 750ma via USB port. The M12 Cordless Power Port runs on the Milwaukee M12 Lithium-Ion battery, and is compatible with the entire M12 platform.