If you have no idea to choose a quality manufacturer for iPhone battery , so then you can take Shenzhen Xinruiming Technology Co.Ltd (XRM) into consideration. XRM specialized in iPhone battery production for 10 years. The square of factory is around 2000m2, and there are 5 automatic assembly lines which are the most advanced in the industry of mobile phone lithium-ion polymer battery, the daliy output of battery is about 40000pcs. Mission statements: to bring safe, environmentally friendly, stable and reliable batteries to customers. There are many suppliers of iPhone battery in China, reasons for you to choose XRM as below: https://drive.google.com/open?id=0B4IGue8gDbYaSmtFeEtjRlJZQlU Product catalog from XRM Lynne Zhang Shenzhen Xinruiming Technology Co.,Ltd Email: lynne@xrm888.com Ph/Whatsapp: +86 13509687512 Skype: Lynne XRM http://www.xrm888.com https://www.facebook.com/Huarigor/ https://youtu.be/5kjt6DJ