When your battery is draining so fast, you only browse while the battery is charging or your phone is just shutting down on its own from time to time, that is a sign that your iPhone battery has issues. When such occurrences start happening to you, what you should consider doing is replacing your battery right away. You can choose a third-party repair shop to do the replacement for you or you can visit an Apple Repair Centre for your iPhone battery . replacement Sometimes iPhone battery replacement makes the phone behave worse than it was. If that happens to you, here are some of the things that you should consider doing
Perform a hard restart or consider a DFU restore
This is the first thing that you can do after replacing your iPhone battery but it is still giving you problems. For starters, you can just try restarting your phone first. If restarting your phone will not work, you can then try performing a hard restart. This is a trick that has been used for a very long time especially when the phone won’t turn on. How you can perform a hard restart will depend on the type of iPhone that you have. If you are having an iPhone 6 and earlier models, you can press and hold your power button and home button. Do that for at least ten minutes until an Apple logo appears. If you are having iPhone 7, press and hold down the power button and the volume buttons. Do this for around ten seconds until the Apple logo appears. If you are having iPhone 8 and the newest versions, you will have to press and release the volume up button then do the same to the volume down button. After which you are required to press and hold the power button until the Apple logo appears.
Calibrate the new battery
Another reason why your battery is not having problems or is not working well even after replacement may be because the battery is not calibrated. The good thing about calibration is that you can easily do it on your own. If you replaced the iPhone battery by yourself, you will have to calibrate that battery as well. Even if apple replaced your battery, sometimes they won’t calibrate the battery for you. Calibrating an iPhone battery is very simple and easy but you will need to be very patient while doing so. What you have to do is drain your phone until your battery completely dies. You will then charge your battery to 100% without any interruptions. At 100% your battery will have been calibrated. It is very important to do this very often for the sake of keeping your battery percentage as accurate as possible.
Replace the replacement If you have done everything but your battery is still giving you a headache, you can still consider replacing the replacement. This is a very rare situation and circumstance but it happens.