Sunwind battery factory,established in 2009, a leading high-tech enterprise specialized in R&D, design, manufacture, technological improvement, sales and service of Mac book battery. With the professional and the focus. 10 years of persistence only for each best battery, we got a wealth of experience in the production process, we focus on technological innovation, continuous improvement, best quality control processes to make each piece product more perfect. All of our products have passed CE, FCC, ROHS, UL certificate. Our Mission:Produce the best quality laptop battery for all of our customers! Our Faith:Quality for life, Customer-centric, Employees as family; Integrity, Confidence, Unity, Innovation!