laptop is not charging well.

[Janvi_20]

For the past month, I've noticed that my laptop is not charging properly. Even when it is plugged in, the battery doesn't charge as expected. Initially, the charging would stop at 70%, but over time, the maximum charge level kept decreasing. Now, it only reaches 2% even while the charger is connected.

What could be the possible reasons for this issue?

[BeemerBiker]

Please run the battery report and post the summery include the Installed batteries
you run the battery report by bringing up the administrator command window and running

 powercfg/batteryreport 

as shown below


After entering that explorer line you should see something like the following. You will have to click on it as it is long
https://stateson.net/docs/SP4_battery-report.html
Battery should last about 5 years but less for gaming systems.

Have you done a battery calibration?
If not, then do the battery report both before and after the calibration.
Save the results so you can compare.