• Excess heat during laptop recharging?

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    Fred Langa
    AskWoody MVP
    January 25, 2021 at 1:30 am #2337299

    LANGALIST Excess heat during laptop recharging? By Fred Langa A reader is concerned: His laptop’s CPU temperature rises during battery-charging sessio
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    abbodi86
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    • PeterR
      AskWoody Plus
      January 25, 2021 at 10:11 am #2337473

      Another possible cause of the temp rise when plugged in is that some laptops have different performance settings for On Battery or Plugged In.  When on battery, the CPU may be throttled, the screen dimmed, and the hard drives and screen may turn off after shorter times without use.  Once plugged in, the CPU may run faster and hotter.  Look under Control Panel > Power Options > Change Plan Settings > Advanced Power Settings > Processor Power Management > Max Processor State.

      –Peter–

      -- Peter R --

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    • anonymous
      Guest
      January 25, 2021 at 10:48 pm #2337710

      I’m sorry but I’m not a paying member so I can’t read the full article.

      One of the byproducts of charging a battery is heat. So anytime you are charging the laptop battery there is additional heat that has to be dissipated from the inside of the laptop.  Assuming your laptop has a fan, dirt accumulates inside the laptop and makes the cooling fan/CPU heat sink less efficient over time.  Add to that the heat from the battery charging and you can have elevated temperatures.  CPUs have had thermal protectors in them for years. When you exceed the max operating temperature for the CPU it will shut down and crash the operating system. That is not to say you should keep letting it “over heat”.  Make sure you know what “over heating “ is.

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      • Susan Bradley
        Manager
        January 25, 2021 at 10:49 pm #2337739

        You do realize you can become one by picking what you want to pay?

        Susan Bradley Patch Lady/Prudent patcher

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      • anonymous
        Guest
        January 27, 2021 at 2:07 pm #2338069

        Really most laptops will just throttle the CPU clocks back if the CPU reaches the thermal limits so you will just lose performance until the CPU cools down sufficiently! But right before my HP Probook’s battery died I noticed that the battery was getting hot and staying hot but that battery was well past its lifetime anyways.

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    • Save_Us_from_MS
      AskWoody Lounger
      January 27, 2021 at 8:05 am #2338026

      I have a hard time trusting any freeware that makes grand promises such as “prevent PC overheating”. How could it possibly achieve that?

      The only things you can do are: make sure nothing is hogging resources in the background, proper cooling/ventilation, and not charging your battery to 100% and keeping it at 100% all the time (apart from generating excess heat, this will destroy batteries faster).

       

       

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      • Paul T
        AskWoody MVP
        January 27, 2021 at 9:04 am #2338050

        There are no grand promises, just a user created shutdown when the temperature is close to a point the user decided is too high.
        The app itself does nothing to lower the temperature.

        cheers, Paul

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