Notebook Hardware and Upgrade Questions

Product : HP Pavilion Notebook – 15-ab257ng (ENERGY STAR)
Operating System : Windows 10 (64bit)
Brief summary:  My battery doesn't charge when connected to the charger. 
Problem :  The battery display shows "0%  available ( plugged in, not charging )" .   

I ran the Hardware diagnostic test and I got the following error: 

Test: Component test ( Power source test) 
Battery Check: Primary - Replace (40)
Primary : Logic State - Bad Cell (40)
Charge State - Not Available
Failure ID : 9C42TF-894AJ1-MFPX6J-CA3D03

Test : Component test (Charging Port test) 
Charging Port Test : FAILED 
Failure ID: 9C42TF-894AJ1-MFPX6J-08AH03

Things I did: Before ordering a new battery I tried every possible way I could to locate the source of this problem. 
I checked the mother board and AC adapter thoroughly. The laptop works fine without battery. I couldn't find any problem there. 

I am now completely clueless about what the failure ID says. It is cryptic to me.
 Could someone explain what that failure IDs mean? 

I am extremely grateful to you!
Thanks in advance!

UPDATE:
Here are some additional things I did: 
1) Complete re-installation of Windows 10 (64-Bit)
2) Updating all the diver modules, including BIOS update
3) Checked the date and time
4) Removing the battery and 15 second power button press to drain and putting back the battery etc., 

Unfortunately, none of the above procedures solved the issue.