Now, when you use an iPhone for 4-5 years, you will see that despite using the diagnostic features to save the battery life, the overall health of the battery will reach an all-time low. In such cases, the best solution is to get the battery replaced. In most non-Apple smartphones, it is sometimes possible to open the back panel and simply replace the battery, however, in the case of iPhones, it is not possible.
The unibody design prevents iPhone users from replacing the battery at home, and as such, the only way for the iPhone battery to be replaced will have to visit the authorized service center and submit your device for the procedure.
There are special tools that allow the technicians at Apple service to pry apart the iPhone without damaging the internal components, and it is highly advisable that you go to them for the battery replacement. When it comes to replacing the battery unit also, the Apple service centers offer a genuine replacement, and this ensures that your iPhone performs to the best of its capabilities, without an issue.
