Hi @maneetkahal ,
Create a [link|https://www.windowscentral.com/generate-battery-report-windows-10|battery report] to check the condition of the battery.
When you have the report, compare the ''Design Capacity value'' versus the ''Full Charge Capacity value'' as seen in the report. For a good battery they will nearly be the same value.
You can determine the condition of the battery as as percentage by using the formula ''Full Charge Capacity value x 100 ÷ Design Capacity value.''
If the percentage is <10% you may wish to consider replacing the battery.
If you decide to do this, here's a [link|https://www.youtube.com/watch?v=L2AoaQl8H7U|video] that may help.
Search online for ''18APE17M battery'' o find battery suppliers that suit you best. This is the model number for the battery. It should be located somewhere on your battery if you wish to verify.