Battery Charging not reaching more than 76%

[Mayank-au626tx]

I bought the computer 1 year ago,

since last 1 month, battery does not charge reach more than 76%, and the battery charger estimates it will be fully charged at a time when the battery reaches 76%.

I  am a cse BTech student that's why I need a laptop with high battery performance. actually, if I am right it happens after when I have started the using of android studio on my laptop.

and my laptop has a non-removable battery.

I would highly appreciate it if someone helps me to fix this problem!

[Huffer]

We need to have you test the battery. Go into HP Support Assistant and look for the battery test under My Devices/Troubleshooting.../HP battery check. Run the test and report or take a screenshot of the full advanced results. This will tell us how healthy the battery is. The battery is removeable it just requires opening the case and observing some standard antishock precautions. Piece of cake for a BTech student with maybe a little help from the Forum. 

[Mayank-au626tx]

it said for "calibrate" . can you tell me basic steps .

[Huffer]

Click on the "Advanced" link next to the word "Results" and show us under the hood on the battery. 

https://www.youtube.com/watch?v=7YqzTmqMcjg

[Mayank-au626tx]

[Huffer · Accepted solution]

Its getting gray hair at a minimum. Lots of cycles and it has lost about 25% of its full charge capacity so my advice is if you depend on your battery get a new one. If that is not in the cards, then follow the video and do a calibration on it.