220-1002 · Question #31
A user's mobile device appears to be losing battery life rapidly and often feels warm to the touch, even when it is put away. The device is relatively new, so the user is concerned it is defective…
The correct answer is B. Display - Brightness. The display is the single largest power consumer on a mobile device. An extremely high brightness setting causes continuous heavy GPU and backlight power draw, which generates significant heat and drains the battery even during light use. While warmth when the device is 'put…
Question
A user's mobile device appears to be losing battery life rapidly and often feels warm to the touch, even when it is put away. The device is relatively new, so the user is concerned it is defective. A technician inspects the device and see the following:
Which of the following should be changed to resolve this issue?
Exhibit
Options
- APrivacy - Maps
- BDisplay - Brightness
- CStorage - Photos
- DMail - Work
How the community answered
(28 responses)- A4% (1)
- B75% (21)
- C14% (4)
- D7% (2)
Explanation
The display is the single largest power consumer on a mobile device. An extremely high brightness setting causes continuous heavy GPU and backlight power draw, which generates significant heat and drains the battery even during light use. While warmth when the device is 'put away' might suggest background activity, on a new device the most common and easily overlooked culprit is maximum or near-maximum screen brightness. Reducing brightness addresses both the heat and battery-drain symptoms without any hardware replacement. The other options (Maps location access, Photos storage, Mail sync) can contribute to battery drain but are not the primary cause indicated here.
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