Laptop dies while battery is still at 40%

[Femke2]

Hello

Since a few days, my laptop started shutting down even tho the battery still had 40%. Then, when I restart, it says the battery is completely drained.

Now, my laptop is about two years old so it is possible that the battery is getting weaker. But to me this does not imply that it should shut down like that. Also when I test the battery capacity, it says it's very weak and only about 30-40% of the original capacity. I somehow find this hard to believe, as I had no problems back in august and I remember the battery lasting me quite a long time.

Recent laptop usage: 
In august everything worked fine. Battery life was still very good! Wouldn't dare to estimate how long I could use it for when fully charged, but I noticed no extreme drainage.

Then the first weeks of September I played some games. For this I always remove my battery because otherwise the laptop gets way too hot. I feel like, maybe this is where it went wrong. But still, I feel like there should be a solution for it shutting down like this.
Now this week I had a lot of online classes and I noticed the battery going down rapidly. I blamed it on the classes, thinking it needed a lot of power. Now the last few days, the laptop started shutting down with no warning whatsoever.

Is there anything I can do to stop the unannounced shutting down? Also, if I'm sure its just the battery being bad I have no issues buying a new one, but I won't buy one until I'm sure this would solve the issues.

Thank you in advance

[Dragon-Fur · Accepted solution]

@Femke2 

If the battery test indicates the battery is weak,

If the battery is two years old (certainly a candidate for replacement based on age),

If the battery no longer works and your computer "dies",

You should likely replace the battery.

We cannot, in any circumstances at all, guarantee results.

The evidence certainly suggests that the battery needs to be replaced.

"Just because it worked yesterday, does not mean it works today."

None of the service guides for your system are showing up in my search...

Suggestion:  Use PartSurfer and your Serial Number to track down the necessary part number.

If all else fails, open the case and look at the part number on the battery...

Reminder!

Please do NOT post the serial number or any private information – we are a public resource.

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Good Reference

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• Use Categories and / or enter your request in the search bar to narrow the search. 

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Select Category Computing and Mobile Devices > Battery and Power

Select Category Computing and Mobile Devices > Parts Replacement and Upgrades

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Use your search engine to find a compatible replacement at your favorite online store.

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References

Run Component Tests – How to

TKB Article contributed by HP Wes_notebooks 

Clear and easy to understand "how-to" instructions for completing component testing

Testing for Hardware Failures

TKB Article contributed by HP Expert Erico

What is going on with the battery installed in my computer?

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