BTS is mainly used on performance testing and cycle testing of rechargeable batteries in battery producing factories, scientific research institutes and QC department. BTS (connected with net port) is composed by host computer, middle-subordinate machine and lower-subordinate machine, and BTS (connected with serial port) is composed by host computer and lower-subordinate machine. We are able to make for a range of current from 1mA to 1000A, a range of voltage from 2V to 500V to meet customers' special needs. wooden box.