CCS2 to GB/T adapter is used for connecting the charging cable on a CCS charging station to a GB/T vehicle that enables for DC charging, Engines: Only choose high quality engines with excellent quality parts like P type injectors, Bosch fuel pump etc, Alternators: Only choose 100% copper wires alternator, with China top brand breakers & AVR.High quality parts like Schneider breaker, Omron relay, ComAp controller etc. Professional 8 Hours test on 25%, 50%,75%, 100%, 110% load before delivery.