shuangdeng group was founded in 1986.there are more than 1,000 staffs in group.our factory takes up about 1,065,600 square meters. We are specialized in making lead acid battery like OPzS Battery,OPzV Battery , GFM Battery, SUPER CAPACITOR,which are applied in the field of telecommunication,UPS, bicycle ,emergency light,energy storage for solar/wind power generation system and so on. Our products have been passed the certification of CE , UL, ISO9001 ,ISO14001.