220-1201 Practice Question: A customer complains that their laptop battery no…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Update the battery driver in Device Manager.

  Why it's wrong here

  A battery driver primarily facilitates communication between the operating system and the battery's internal controller, reporting status like charge level and health. Updating this software driver cannot reverse the physical chemical degradation or capacity loss that occurs as a lithium-ion battery ages. If a battery no longer holds a charge, it indicates a hardware failure or end-of-life, which no software update can rectify. The issue is physical, not a communication error.

• ✗

  Run a battery calibration utility from the manufacturer.

  Why it's wrong here

  Battery calibration utilities are designed to resynchronize the battery's internal fuel gauge with its actual full and empty charge states, correcting inaccurate percentage readings. While useful for addressing instances where the operating system reports an incorrect charge level, calibration cannot restore the lost chemical capacity of a physically degraded battery. If the battery genuinely fails to hold any charge, its internal cells are likely compromised, requiring replacement rather than recalibration.

• ✓

  Power off the laptop and remove the battery.

  Why this is correct

  Before performing any internal hardware service, such as replacing a laptop battery, it is crucial to power off the device completely and disconnect all external power sources. Removing the battery while the system is powered down eliminates the risk of electrical shock, prevents potential short circuits, and protects sensitive internal components from damage during the physical removal and installation process. This is the fundamental safety protocol for hardware replacement.

• ✗

  Replace the AC adapter to see if the charging circuit is faulty.

  Why it's wrong here

  The customer's complaint states the laptop battery 'no longer' holds a charge, implying the laptop functions correctly when connected to the AC adapter. This specific symptom indicates that the AC adapter is successfully providing power to the laptop and its internal charging circuit is likely operational. Replacing the AC adapter would be an incorrect troubleshooting step, as the problem lies with the battery's inability to retain a charge, not with the power delivery system itself.

Go deeper

Related to this question