iPhone 4s Battery Replacement : New Zero Cycle 1430mAh 3.7V Li-Ion Battery Replacement for iPhone 4 with ToolsCompatible with Models of the iPhone 4s: A1387 and A1431, CDMA and GSM- by HanNeng Why should I replace my battery? Batteries in iPhones work like any other battery - they wear out with time. After about 6 months usage a decrease in battery life by 10-20% is usual. Another 6 months later it's obvious that the battery needs to be charged more frequently than before. Furthermore, when the battery is really worn out, it's common that the percentage jumps or switches quickly. In some cases the phone switches off when the battery is running low (at 10-30%) or when a high performance application, such as GPS, is being used. To correct all these problems, a battery replacement can do the trick! Good to know: - No information on the iPhone will be lost if done as instructed - Designed to work with all iPhone 4S(not iPhone 4) - Helpful tips attached to get the maximum out of your new battery - The battery is a high capacity 1440 mAh li-ion designed for iPhone 5 The Package includes: 1 Battery (3.7V 1430mAh Li-ion) 1 Philips Size PH 00 x 40 Screwdriver 1 Plastic Opening Tool 1 Set of Adhesive 1 Suction Cup 1 Pentalobe (Five-Star) Screwdriver World Famous Warranty At HanNeng,we back them all with an 18-month warranty and provide friendly ,easy-to-reach support,and Free Lifetime Technical Support also.
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