The RL78/G1C USB Charger Solution Kit (R0K578G1CD010BR) is an evaluation kit containing an RL78/G1C microcontroller with built-in USB host/peripheral function, a charge control IC, serial EEPROM, a character LCD, ambient light and temperature sensors, and more. Using this kit, development and evaluation of rapid-charging products that use the USB Battery Charging Specification Revision 1.2 (henceforth, USB BC 1.2) and USB application products can be carried out with ease. Users who adopt this solution can shorten the planning to design stages of system development as well as reduce the number of prototype iterations for more efficient development.