Certified to ISO-9001 Koyo Battery Co Ltd is one of the world's leading manufacturers of lead acid batteries. Koyo is heavily engaged in product R&D, with a focus on motorcycle and automotive rechargeable, sealed lead-acid batteries. We have been importing and distributing Koyo batteries for years and are continuously impressed with the commitment to quality and value. With a return rate of less than 2%, we are very happy with the reliability of these batteries and are sure you will be too.