Shanghai Bolder Battery Co., Ltd is one of China??????s leading researchers, manufacturers and sellers of maintenance free starter battery and High capacity, Low-maintenance deep cycle and traction batteries. Bolder lead-acid batteries cover automobiles, electric vehicle, traction vehicle and various industries, and have been recognized by CE and UL. Bolder has both ISO 9001 and ISO 14001 certification as well. We have excellent sales in China and also exports to Japan, USA, UK and other countries ...