A traveling user connects a high-performance laptop to a 15W smartphone USB-C power wall adapter. While the battery icon displays a plugged-in charging status, the battery percentage steadily decreases during active use, and system performance slows significantly. Which of the following best explains this behavior and provides the correct resolution?
- The power adapter does not provide sufficient wattage to cover active power draw, causing the system to supplement power from the battery and throttle performance; the user should connect a higher-wattage USB-C Power Delivery charger.Cevap
- BThe Lithium-ion battery fuel gauge has lost calibration and requires a full deep discharge cycle by completely draining the battery to 0% before recharging to 100%.
- CThe physical USB-C port on the laptop is limited to standard USB 3.2 data transfer and cannot negotiate any battery charging unless upgraded to a Thunderbolt host controller.
- DThe system motherboard power regulation circuit has suffered internal component failure, requiring an immediate replacement of the system board.
Cevap
The power adapter does not provide sufficient wattage to cover active power draw, causing the system to supplement power from the battery and throttle performance; the user should connect a higher-wattage USB-C Power Delivery charger.
The correct answer highlights that connecting a low-wattage charger (such as a 15W smartphone adapter) to a high-draw laptop results in auxiliary battery discharge to cover operational load, accompanied by system power throttling. Replacing it with a charger matching the laptop's required wattage rating completely resolves the issue.
Adım Adım Çözüm
Anahtar Kavram
USB-C Power Delivery Wattage Requirements and Power Supplementing
Tahmini Süre:1m 15s