Macbook Pro 2015 'Big Sur' Drains battery completely when I close

[appleluva]

I have a MacBook 2015 Big Sur; if I close it for a few hours, the battery dies completely. Please note- I already tried most of the solutions Google suggested; please how do I fix this?

 

[DeltaMac]

Is this the original battery?
How good is your battery life?
Can you use it most of the day before you need to charge?
Or, do you only get a couple of hours, or less?

If you go to your System Information, then to Power, what is listed for Full Charge Capacity, also Cycle Count?

 

[mikzn]

I’ll second @DeltaMac - good chance the battery is failing - if it is over 700 cycles might be good to replace the battery?

I had the same issue - see my post here

 

[appleluva]

I’ll second @DeltaMac - good chance the battery is failing - if it is over 700 cycles might be good to replace the battery?

I had the same issue - see my post here

I just read your post - my experience is quite different considering my system is in perfect working condition and it doesn't freeze.

Earlier this morning after working I closed the system at about 2am with 100% - but I woke up to 26%

 

[mikzn]

Yeah that might no be the same

when you say closed the system - do you mean you "shut down" in the apple menu and the battery is draining when completely off?

I did not mention on that post that I knew the battery was going because when I used the MacBook Pro "without" connecting to a power outlet the battery would die very quickly

On the other hand "your comment "When I close" may mean that you are not shutting down and perhaps "closing the lid" - which means the system may be running and using energy and not charging ?

Still worth checking how many cycles you have - you are at the right time frame for a new battery - assuming it is a 2015 MBP ?

 

[DeltaMac]

I just read your post - my experience is quite different considering my system is in perfect working condition and it doesn't freeze.

Earlier this morning after working I closed the system at about 2am with 100% - but I woke up to 26%

hmm... "Perfect working condition" does not mean that the battery is still good.
Can you post the info that I asked about in my post #2? That will tell you a lot about the health of the battery (perhaps that is all good -- or not), low numbers (or high Cycle Count) may tell you that the battery, although it "works", can be at a point where you might consider replacing the battery