What is the best battery replacement kit for the iPhone 6s? Should I use a generic battery or an Apple battery? - Quora
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Amazon.com: Battery for iPhone 6s Plus, uowlbear 3900mAh Replacement Battery for iPhone A1634 A1687 A1699 with Complete Replacement Kits, Two Set Adhesive Strips and Waterproof Seals -High Capacity 0 Cycle : Cell
![Original Apple IPhone 6S Battery With 1715mAh (With Warranty), Battery Type: Lithium-Ion, Voltage: 3.82 V, | ID: 22689103791 Original Apple IPhone 6S Battery With 1715mAh (With Warranty), Battery Type: Lithium-Ion, Voltage: 3.82 V, | ID: 22689103791](https://5.imimg.com/data5/ANDROID/Default/2020/10/LI/QG/EI/19013013/product-jpeg-500x500.jpg)