Smartrade has a full energy storage power supply test lab with internal resistance test, battery comprehensive test, energy feedback charge and discharge test, capacity separation cabinet, working condition simulation test, temperature tesy, salt spray test, drop test, shock test, vibration test, and more. Our goods are popular in North and South America, Europe, Southeast Asia, Japan, South Korea, Africa, and the Middle East, where we provide OEM/ODM services to 42 countries.