A laptop runs normally on its adapter and shuts down quickly on battery. The battery health reading says the battery is worn out. Which part should be replaced?
Select an answer to reveal the explanation.
Short Explanation
On the adapter the laptop is fine, and on the battery it falls over, and the health reading already says the cell is worn. You replace the battery. The screen, the operating system, and the fan are not that cell.
Full Explanation
A laptop that runs on the adapter and dies quickly on battery, with a health reading that says the battery is worn, has a failed battery. Replacing it is the repair. The display does not store the charge. The operating system can show the health reading. Reinstalling it does not restore a worn cell. The cooling fan moves heat. It is not the battery sensor, and the laptop is not described as overheating. Exam caveat: a swollen battery is a different hazard. This stem is a worn pack that will not hold a charge, with no swelling. Do not puncture either kind. Operational check: install the new battery, disconnect the adapter, and confirm the laptop stays up for a normal work stretch. Confirm the health reading on the new pack is healthy before you return the laptop.