Shenzhen Yongnai Power Co., Ltd is a subsidiary company of Jiaxing Huarong Group Co., Ltd, a professional battery manufactory which engaged in researching, producing and selling. With a complete management system, adcanced production facilities and abundant technology,our annual output is more than 1,000,000,000 pieces including Alkaline batteries, super heavy duty battery, Lithium button cells (CR), Alkaline button cells (AG),  NI-MH rechargeable battery and battery pack.We own the English brand "DUREDAY",having good ....