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Intro History: Samsung Galaxy S9 Battery Replacement

Edit by Alex Diaz-Kokaisl

Edit approved by Alex Diaz-Kokaisl

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To reassemble your device, follow these instructions in reverse order.
'''***If possible'''***, turn on your phone and '''***test your repair'''*** before installing new adhesive and resealing the phone.
For optimal performanceFollow ++[link|https://www.ifixit.com/Guide/How+to+Perform+a+Battery+Cycle+Reset/152044|this guide|new_window=true]++ to perform a battery cycle reset, and ++[link|https://www.ifixit.com/Wiki/Battery_Calibration|calibrate] your newly -installed battery: Charge it to 100%, and keep charging it for at least two more hours|new_window=true]++. Then, use it until it shuts off due to low battery. Finally, charge it uninterrupted to 100%
Take your e-waste to an [[E-Waste|R2 or e-Stewards certified recycler|new_window=true]].
Repair didn’t go as planned? Check out our [link|https://www.ifixit.com/Answers/Device/Samsung%20Galaxy%20S9|Answers community] for troubleshooting help.