MacBook Pro keeps losing charge- HELP!

[Elphabe]

Hi. Recently, my 2017 MacBookPro (Mac OS mojave v. 10.14.3) has started losing all battery charge overnight and after a few hours. I've checked all the recommended items (battery cycle (221 or something) is normal, no significant power energy drains- well, now Google Chrome-, I've lowered screen brightness- but when I go to bed, power is at 88%, and when I wake up it's at 1% and the laptop is closed, although not shut off.

Any recommendations? The laptop is losing power at an abnormal rate.

I've also done an apple diagnostic at startup (press D), and the diagnostic came back fine. Any ideas?

 

[Audit13]

Could it be that an app is preventing the Macbook from going into hibernation mode?

 

[Natzoo]

Could it be that an app is preventing the Macbook from going into hibernation mode?

How would you check for something like that?

 

[Audit13]

Here a thread about battery drain: https://forums.macrumors.com/threads/why-do-macbook-pros-drain-battery-while-sleeping.2111961/

Hibernatemode=25 causes the Macbook to write the ram contents to the SSD and power off.

This article may also help: https://www.chriswrites.com/mac-refusing-sleep-figure-whats-keeping-macos-awake/

 

[Elphabe]

Could it be that an app is preventing the Macbook from going into hibernation mode?

How would I check that?

 

[Audit13]

How would I check that?

Have you had a look at activity monitor?

https://support.apple.com/en-ca/HT201464