This new Replacement Battery compatible with the iPhone 6s Plus is what you need to bring that dead iPhone back to life.
This battery is brand new! Each one has been tested to confirm that there are no cycles on the cell and that the capacity is 95% or higher.
For optimal performance, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.
Installation adhesive is not included.