Shenzhen Yongnai Power Co., Ltd is a subsidiary company of Jiaxing Huarong Holding Group Co.,Ltd, is a professional battery supplier who integrates researching, producing and selling. From a small company who produced battery accessories only, now it develops into a major production-oriented manufacturer who produces every spare parts and composes those parts to finished products by oneself.Our main product is Alkaline batteries, Zinc carbon batteries(Super heavy duty,extra super heavy duty battery,heavy duty battery) Alkaline button cells (AG) Lithium button cells (CR) NI-MH rechargeable battery and battery pack. Last year, our company acquired the Ningbo "BW POWER" battery.Now we have three brands "DUREDAY","YN" and "BW POWER". we manage our enterprise strictly in accordance with ISO9001 and 6S and adhere to comprehensive administration policy