The phone battery is an essential component that may need replacement if:
- it no longer lasts long enough,
- it discharges suddenly after a call,
- it has swollen,
- it does not charge properly.
The process of replacing the battery on modern smartphones can be complicated, as special tools are required. It is recommended to seek assistance from a specialized technician to ensure safe execution of the task and to avoid any potential issues with the device's operation.