220-802 · Question #304
The technician is dispatched to look at a user's laptop. The user reports the system shuts down after 30 minutes of field use. The technician notices the battery is not fully charging. Which of the…
The correct answer is D. Replace the battery. A battery that fails to fully charge and causes the system to shut down prematurely is a degraded battery that must be replaced.
Question
The technician is dispatched to look at a user's laptop. The user reports the system shuts down after 30 minutes of field use. The technician notices the battery is not fully charging. Which of the following should the technician perform to resolve this?
Options
- ARemove the battery and connect it to a commercial battery charger.
- BDischarge the battery using a static mat.
- CChange the power setting on the laptop to use less power.
- DReplace the battery.
How the community answered
(36 responses)- A3% (1)
- B6% (2)
- C3% (1)
- D89% (32)
Why each option
A battery that fails to fully charge and causes the system to shut down prematurely is a degraded battery that must be replaced.
A commercial battery charger cannot reverse internal cell degradation in a lithium-ion laptop battery and will not restore full charge capacity.
A static mat is used for ESD (electrostatic discharge) protection and has no function in diagnosing or resolving battery charging issues.
Adjusting power settings can extend usage time on a healthy battery but cannot compensate for a battery that is no longer accepting a full charge.
A battery that no longer holds a full charge is exhibiting end-of-life degradation, a hardware failure that cannot be corrected by software settings or external chargers. Replacing the battery is the correct resolution because the battery's internal cells have lost capacity. No configuration change can restore degraded electrochemical cell capacity.
Concept tested: Laptop battery failure diagnosis and replacement
Source: https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/powercfg-command-line-options
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