[ still if you can't fix this Or have some problem - please comment i will be glad to help ]
It didn't work? Try these tricks : -
1. Reset the bios settings to default.
2.Go to bios settings
i . Battery info
ii. Now connect the charger
if battery is getting charged normally without any problem
iii. Reinstall windows.
3.press CTRL + R type "msinfo32.exe" and hit enter
i. system information windows will open
ii. Note down the Bios version and release date and processor
iii. download the bios driver from official website of your laptop manufacturer, the bios driver version should be newer than installed on your system(don't install if it's older or same) and for the same operating system you're using and processor. (you may need product number of your laptop model to search the driver on manufacturer's website)
v. Update bios driver
vi.Be careful with this connect the laptop charger before you double click on the downloaded file to install.
vii.Don't restart\shutdown \ disconnect AC supply.
4. start using your laptop on battery till it hibernates
i. again power on and use it until it reaches 2 - 3 percent.
ii. now when it hibernates
iii. Remove the battery
iv. Plugg in the charger
v. power on laptop and uninstall the driver mentioned in above video.
vii. again put the battery back into laptop
viii. charge it and don't power on your laptopn untill (1-2 hrs) the battery is fully charged.
ix. after that power on.
I hope one of these works for your computer.
If doesn't then there may be some problem with your laptop charger Or Battery.
[ i'm saying MAY BE not WILL BE ] ;)
Comment please if you have some problem.