Is it normal for a laptop power adapter to be hot

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Discussion Overview

The discussion centers on the issue of a laptop power adapter becoming excessively hot during use. Participants explore potential causes, including usage patterns, voltage, and the condition of the laptop battery, as well as the implications of high CPU usage.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that the adapter has become very hot recently and questions whether this is related to usage time or voltage.
  • Another participant suggests checking CPU usage, indicating that high CPU usage may lead to the charger overheating.
  • It is proposed that if the adapter has suddenly started getting hot, some change must have occurred, possibly related to the laptop battery nearing the end of its life.
  • A different viewpoint argues that 100% CPU usage may not directly cause the power supply to warm up, emphasizing that the current passing through the adapter is in the range of Amperes, not milliamperes.
  • This participant also suggests checking the battery's condition, as a failing battery could lead to the adapter overheating.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between CPU usage and adapter temperature, with some attributing the heat to CPU load while others emphasize the battery's condition. The discussion remains unresolved regarding the primary cause of the overheating.

Contextual Notes

Participants do not reach a consensus on the specific factors contributing to the overheating of the power adapter, and assumptions regarding the relationship between CPU usage and adapter temperature are not fully explored.

sunjatan
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I bought a ravpower brand laptop power adapter half year ago,it works well before,but this week i find it will become very hot,I don't know why.But I am thinking maybe it is relative with the time of using or the voltage?Or some other problem?Sometimes I play games for all day and I have a bad habbit that I always forget to turn off my laptop.Do I use my laptop too much?And will this lead to laptop power adapter too hot?
 
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Yeah.
 
Check your cpu usage . . . Because normally charger overheats quickly when cpu usage is like near to 100% ...
 
If has suddenly started getting hot, something must have changed to make that happen. Maybe the laptop battery is getting near the end of its life, for example.

Power adapters usually get warm, but they shouldn't get hot enough to cause a risk of injuring people or starting fires.
 
Hello,
I don't think if the processor usage 100% it will make the power supply to warm up. because the processor usage in mA while for adapter to warm up this means that a current in the range of Ampere is passing through it.
Since it was working fine, and you encounter this problem recently, so check if your battery is working fine, since if your laptop battery is not in good state this may cause your adapter to warm up.
 

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