Sudden battery capacity drop Extensa 15 EX-215-53

SivtaTres
SivtaTres Member Posts: 3 New User
edited October 2021 in TravelMate and Extensa
Noticed that my battery power dropped rather quickly today and decided to check it.
It dropped by 50% in span of half a year and by 20% today (last line is when my laptop at 100% charge). This seems alarming. What's wrong?



​//Edited the content to add model name.   ​

Answers

  • JackE
    JackE ACE Posts: 44,897 Trailblazer
    Please post  a screenshot of the first part of the report showing the full remaining  capacity vs. full design capacity. Looks like you need to uninstall all the current battery related drivers in Device Manager's batteries folder. Then shutdown Windows. Then turn it on again and let Windows automatically re-install fresh copies of the drivers. Once that's done, you should also re-calibrate the battery by starting with a blue battery charge LED, then unplug the charger and let the battery drain till it reaches the 10% Windows low battery warning. Then plug the charger back in.

    Jack E/NJ

  • Easwar
    Easwar Member Posts: 6,727 Guru
    SivtaTres,

    Try these steps,
    1. Activate battery saver mode. ...
    2. Unplugged unused peripherals. ...
    3. Plug it in before it dies. ...
    4. Keep your laptop out of hot and cold. ...
    5. Have enough RAM. ...
    6. Don't keep your laptop plugged in. ...
    7. Turn down screen brightness. ...
    8. Turn off Wi-Fi and Bluetooth when not in use.
  • JackE
    JackE ACE Posts: 44,897 Trailblazer
    Please post  a screenshot of the first part of the report showing the full remaining  capacity vs. full design capacity. Looks like you need to uninstall all the current battery related drivers in Device Manager's batteries folder. Then shutdown Windows. Then turn it on again and let Windows automatically re-install fresh copies of the drivers. Once that's done, you should also re-calibrate the battery by starting with a blue battery charge LED, then unplug the charger and let the battery drain till it reaches the 10% Windows low battery warning. Then plug the charger back in.

    Jack E/NJ

  • SivtaTres
    SivtaTres Member Posts: 3 New User
    edited October 2021
    JackE said:
    Please post  a screenshot of the first part of the report showing the full remaining  capacity vs. full design capacity. Looks like you need to uninstall all the current battery related drivers in Device Manager's batteries folder. Then shutdown Windows. Then turn it on again and let Windows automatically re-install fresh copies of the drivers. Once that's done, you should also re-calibrate the battery by starting with a blue battery charge LED, then unplug the charger and let the battery drain till it reaches the 10% Windows low battery warning. Then plug the charger back in.

    I also found battery capacity history, with full charge capacity in left column

    Also, what do you mean by "blue battery charge LED"? Does it mean "turn on laptop with charger plugged in"?
  • ttttt
    ttttt Member Posts: 1,947 Community Aficionado WiFi Icon
    @SivtaTres

    Your battery is going. Fully charged capacity is way below the designed capacity.

    When the battery is fully charged, the LED light will turn from orange color to blue.

    Time to shop for a new battery.
  • JackE
    JackE ACE Posts: 44,897 Trailblazer
    Yes, if the battery charge LED must turn from steady orange to steady blue. If the battery was allowed to drain below the critically low charge of less than 5% and was not permanently damage, it may take at least 8 hours for the battery charge LED to turn blue. If it never turns blue, the battery has an internal short and must be replaced. Cost about $40usd.

    Jack E/NJ

  • billsey
    billsey ACE Posts: 34,246 Trailblazer
    It's a bit early for the battery to be showing that type of wear. Most likely either the battery or Windows (or both) have corrupted numbers. Jack has the best solution, force a Windows recalibration, but you might want to do a battery reset first. There should be a reset pin hole on the bottom of the laptop. Use something like a bent paperclip to press and hold the reset button with power removed and the laptop off. Hold it for 15-30 seconds, then wait 15-30 minutes before plugging power back in. Wait for the full battery indication (blue light) before turning it back on, then do the calibration for Windows. I bet it'll be back to the state before this weird stuff started.
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • SivtaTres
    SivtaTres Member Posts: 3 New User
    I calibrated battery twice and got to 33k, which is still not the amount that was before weirdness began, but good enough. I'll keep an eye on battery. Thanks to JackE and others for answers