3 100% Brand new and high quality Capacity: 3.8V, 1510mAh Lithium-ion Polymer Battery is light-weight and ensures improved safety. Protective IC chip prevents short-circuits and overcharging, lengthening the battery life. Take advantage of additional talk and standby time with the high-performance standard battery. Fits your iPhone 5S perfectly. Note: When you use it, please potential for fire or burning. Do not disassemble, puncture, crush, heat or burn. This is not an easy job for someone who has no technical skills with Disassembling or Assembling Cellphones/mobile phones, so only purchase this item if you know how to install it Highly recommend professional installation. We will not be held responsible for any damages to your cell phone/mobile phone that you may cause during the changing of replacement parts. Compatible With: iPhone 5S Package Includes: 1 x Internal Replacement Battery for Apple iPhone 5S