USB-CP-12i : USB Power and Charging Cord for ICOM radios. Plugs into USB2.0 Port (5V). Output is 12VDC (1A max). Provides Power to radio (low-watt transmit and full receive), and can also charge battery packs thru the radio. This device plugs into a standard USB2.0 port (wall cube, PowerBank, computer, etc.), with recommended output of 2A.  It uses built-in smart integrated circuitry to upconvert 5.0VDC from a USB2.0 port to 12VDC @ 1A max output. Fits radios such as ID-52A, ID-51A, ID-51A Plus, ID-50A, ID-31A, ID-51E, IC-W32A, IC-W32H, IC-W31A, IC-W31H, IC-T7A, IC-T7H, IC-Z1A, IC-T22A, IC-T2A, IC-T2H, IC-F3, IC-F4, IC-T8A, IC-T8H, T81A, IC-T81H, IC-A25, IC-A24, IC-A6, IC-A23, IC-A5, IC-A4, IC-24AT, IC-2SRA, IC-3SRA, IC-4SRA, IC-W21A, IC-2GXAT, IC-V21AT, IC-T21A, IC-T41A, IC-W21A, IC-W21E, IC-2GXA, IC-2GXAT, IC-V21AT, IC-F10, IC-F20, etc. The output coaxial plug is 3.5mm x 1.5mm, center hole polarity POS(+), so it correctly fits in a wide variety of ICOM handheld radios that have the DC Input jack, center POSITIVE(+).  
Picture shows the USB-CP-12i, and a sample ICOM radio that it plugs into