For 850mAh AA battery, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 850mAh AA battery has been well received by many customers and enjoyed a good reputation in many countries. JYH Technology Co., Ltd. 850mAh AA battery have characteristic design & practical performance & competitive price, for more information on the 850mAh AA battery, please feel free to contact us.