EEL company specializes in lithium battery field more than 8yearsfactory have 4 production lines in workshop and over 100 workers.,brOur bms engineers have 12 years experience on smart bms development>they are familiar with CANBUSSMBUS,RS485RS232,UART communication system.The workshop was equipped with advanced automatic spot welderlaser welding machine,ultrasonic welderbattery energy analysis tester,aging testing machinesto make sure that battery assembling well.We promise our batteries all with grade A and 100, new brand cellsalso use advanced BMS with best IC which imported.