Shenzhen Golden Crown Industrial Co., Limited, Engaged in the battery industry in 1998, since then, we specialize in researching, designing, manufacturing, and marketing in laptop batteries, laptop adapters and Smart Automatic laptop battery Detector(NEW). We have five modernization production lines, more than 200 skilled workers. We can supply high quality compatible laptop batteries and adapters with competitive price. Our company has passed ISO: 9001 certificate. All our goods are CE, MSDS & ...