2015 Macbook Pro loosing 10% battery per 24 hours

[shaunsheppard]

I have a 2015 Macbook Pro, it's not used heavily and from what I can tell the battery has been cycled around 113 times.

Lately, I've noticed that if I log out of my account, close the lid and return to open it the next day, it's lost 10% of it's battery power. So after just over a week of no use it's lost all of it's battery.

Does this mean it needs a new battery? The battery condition is showing as Normal.

UPDATE:

I checked the Macbook @ 10:19 this morning, it was at 76%. I closed the lid and I've checked it again at 13:54, it's down to 73%. That's 3% lost in just over 2 hours!!!

 

[Fishrrman]

What does Coconut Battery show as the overall battery "health"?

For overnight, I'd power it down.
Then... reboot in the morning.
That's what I do with my own 2015 MBPro 13".

 

[shaunsheppard]

It shows;

Current Charge: 4268 mAh
Full charge capacity: 6265 mAh
Design capacity: 6559 mAh
Cycle count: 113
macOS Battery status: Good
Battery temperature: 22.9c

 

[jerryk]

What is applications are running? More than likely an app is preventing the system from sleeping or waking it up.

 

[shaunsheppard]

I've closed all applications and quit everything in the bar at the top, i.e. Docker, Google Drive, disabled bluetooth and disabled location services. I've even turned off wi-fi too.

 

[shaunsheppard]

Quick update. I shut down the Macbook earlier today (3 hours again). I've just booted it up and it's lost 3% in 3 hours while switched off!! How on earth does that work?

 

[frou]

Does it have an SD card inserted? I remember reading something about an SD card being inserted stopping Macs from being able to go into the deepest sleep state.

 

[shaunsheppard]

Nope, nothing at all plugged in.

I've just reset the SMC to see if that might make a difference.

 

[nerowolfe19]

My 2012 rMBP had given me enough headache because of battery drain during sleep until I forced it to hibernate after going into sleep mode as per this post. Now it stays at 100% when hibernating provided automatic sleep is turned off (a bug of sorts).

My advice is don't rely on % as a measure since it can be misleading when restarting. Instead check the current charge in mAh and see if that shows a discernable change.

Better yet, see if keeping it shut down for an extended period of time eg 12h+ affects its battery life for the remainder of the charge, which is the litmus test pertaining your concern.