Windows 10: Display dims on battery power, even when fully charged.

Hi All,

An annoying problem here, can you please help me.

My laptop display dims on battery power, even when fully charged. Every time I need to readjust the brightness. I went through the settings I could not get the setting where we set brightness for Battery and Plugged-in separately. I searched through all the Power Options. Probably it is a new upgrade from Microsoft.


Something like this:



I could not find this in my settings.


I am on version: Windows 10 Enterprise version 1903 (OS Build 18362.900). On a Thinkpad T14s Gen 1. Ryzen 7.

Can I go under the hood and do something about this automatic brightness switches.

Any quick help will be greatly appreciated.

:)

 

Battery Won't Charge Fully

Make sure to install all Windows important updates.

Install latest versions of your laptop device drivers you can download the latest device drivers from the device manufacturer or from your laptop manufacturer website.


Step 1

1. Shutdown your laptop.

2. Remove the battery.

3. Connect the AC power adapter to your laptop.

4. Power on the laptop

5. Open the Device Manager by typing Devmgmt.msc into Start Menu or from Control Panel.

6. Under the Batteries category, right-click all of the Microsoft ACPI Compliant Control Method Battery listings, and select Uninstall (it’s ok if you only have 1).





7. Shutdown the laptop.

8. Insert the battery.

9. Power on the laptop.

If above suggestions wont resolve the battery charge issue then follow below steps.




Step 2

1. Shutdown the laptop.

2. Remove the battery.

3. Start the laptop with only AC adapter connected to laptop.

4. When you login to Windows OS connect the battery while Windows OS working.





Step 3

Reset the System Management Controller. Use one of these methods to reset the SMC, which controls battery management, battery status light.

1. Shut down the computer and disconnect the power cord.

2. Remove the battery.

3. Press and hold the power button for ten seconds.

4. Reattach the battery and AC power adapter, then start up the laptop.


Hopefully one of the above suggestions will help you resolve the battery not charging problem. If battery still doesn't charge, you may need to replace your battery.

 

Plugged in but battery does not charge

If the laptop works without the battery then charger is functioning correctly. Take a cloth with a bit of rubbing alcohol on it (or some on-the-go alcohol swabs), and clean the metal contacts that connect your battery to your laptop.

Make sure to install all Windows important updates.

Install latest versions of your laptop device drivers you can download the latest device drivers from the device manufacturer or from your laptop manufacturer website.


Step 1

1. Shutdown your laptop.

2. Remove the battery.

3. Connect the AC power adapter to your laptop.

4. Power on the laptop

5. Open the Device Manager by typing Devmgmt.msc into Start Menu or from Control Panel.

6. Under the Batteries category, right-click all of the Microsoft ACPI Compliant Control Method Battery listings, and select Uninstall (it’s ok if you only have 1).





7. Shutdown the laptop.

8. Insert the battery.

9. Power on the laptop.

If above suggestions wont resolve the battery charge issue then follow below steps.




Step 2

1. Shutdown the laptop.

2. Remove the battery.

3. Start the laptop with only AC adapter connected to laptop.

4. When you login to Windows OS connect the battery while Windows OS working.





Step 3

Reset the System Management Controller. Use one of these methods to reset the SMC, which controls battery management, battery status light.

1. Shut down the computer and disconnect the power cord.

2. Remove the battery.

3. Press and hold the power button for ten seconds.

4. Reattach the battery and AC power adapter, then start up the laptop.


Hopefully one of the above suggestions will help you resolve the battery not charging problem. If battery still doesn't charge, you may need to replace your battery.

 

Battery fully charged, but still charging


My laptop has a battery light which tells me when my laptop is fully charged. When it is fully charged (it is green), Windows still says "05 minutes until fully charged" and then charges for another half hour. In the past the light has been reliable, so I believe that windows 10 is the issue. My laptop has also had significant issues with charging. I can confirm this with two batteries. I have an Asus K55VD which I haven't changed the battery plugs in or anything like that. What could my problem be? Here's what I've tried:

-Disabling and re-enabling Microsoft ACPI-Compliant Control Method Battery (no change)
-Turning power saving off in BIOS (did a bit of help with the charging problem)
-Fixing the fan (turns out it wasn't spinning, which caused a range of issues. Helped the battery charge issue a bit)
-Keeping the laptop shut down (didn't help)
-Keeping it asleep (didn't help)
-Keeping it on with the screen off (did help it charge)

Yet I can't find a fix for the battery charging percentage and time issue. Any help would be appreciated.