Windows 10: What is the purpose of laptop battery charging limit?

Hello Team microsoftI use an ACER laptop with windows10. I recently enabled an option that limits my battery charging. My question is that what is the purpose of it? and if it is good for my laptop , can i keep it plugged in all the time because thats what i could understand out of it. I hope keeping my laptop plugged in all the time doesnt do any harm to it. Also the battery only charges till 80% so i think my laptop is using power through electricity and not the battery : Thanks

:)

 

Toshiba Laptop Not Holding Battery Charge  

attached is a pic of the internal of the laptop there does NOT appear to be a CMOS battery what should my next steps be? - fully charge existing battery and see if i remove it and install back teh next day whether its still fully charged? - charge the battery for 18 hours to charge the internal CMOS battery? - suggestions please as Im not sure

 

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.

 

Laptop battery charging limiter software?

Is there any software for Windows that could limit charging of the battery on laptop to a desired percentage in order o extend its life?