If that is happening to you, there are several solutions: you can switch over to the latest iPhone, start carrying a battery charger around with you, or — simply replace the battery. To first identify whether your battery is ready for a change, you can check to see what the current health of your battery is by going to “Settings” > “Battery” > “Battery Health.” This is where you can find out your battery’s current maximum capacity. If you’ve decided to replace the battery, you have two choices: doing it yourself or hiring someone else — like Apple — to do it. Some vendors on Amazon even sell iPhone battery replacement kits for this very purpose, which can run around $25 or so. If your iPhone is under warranty or you have AppleCare+ and Apple deems the battery defective, repairs are free.
Source: The Nation September 17, 2021 19:52 UTC