We are a large scale and professional manufacturer engaged in the design, manufacture and sales of laptop batteries. We can supply various laptop batteries and adapters compatible with brand laptops, including IBM, DELL, SONY, LENOVO, ASUS, SAMSUNG, BENQ, FUJITSU, HP, COMPAQ, TOSHIBA, ACER and APPLE laptops. Our professional R&D and QA teams keep Chengyuan in the forefront of laptop battery technology line. We have developed many kinds of new products independently through our own efforts. As one of the Chinese leading Manufacturers of laptop batteries, we always attach importance to our products. All of our batteries adopt the imported, original and high-capacity cells, and the batteries have the protection function of over charge and over discharge. We have passed CE authentication of Europe, and our firm produces goods according to UL standard. All of our batteries easily passed