1 Esource Technology Co., LTD is a Professional OEM/ODM manufacturer of Power Bank, Jump Starter, Portable UPS, Solar Chargers and Battery PCM/BMS/PCB…1 Esource Technology Co., Ltd was founded in 2002 in ShenZhen, China. An ISO certified factory and also approved as China Hi-Tech Enterprise. At present, 1 Esource Technology owns an industrial area nearly 3,000 square meters, more than 350 employees. With its integrated