Product descriptionIf you want to extend the battery life, please drain all the battery power until the phone turns off automatically, then fully charge, and repeat 3-5 times to achieve the best battery use.Package Included1 x 2200mAh iPhone SE battery1 x Pentalobe (Five-Star) Screwdriver1 x Tri-point Screwdriver1 x Phillips screwdriver1 x Triangle opening tool1 x Suction cup1 x Spudger1 x Adhesive Strips1 x Installation manualNote:1. Please do not use the mobile phone when charging.2. Please kindly check your phone model on the back of your phone before purchasing it.3. Please discharge the battery below 20% and power off your iPhone before disassembling. The original battery maybe will catch fire if accidentally punctured.4. If it's the first time you've replaced a battery?we strongly recommend you to watch the installation video before you replace the battery.