How to prevent Macbook pro 2015 battery loss in sleep mode?

Question

macOS

Good afternoon. I have a Macbook pro retina 13 (2015), the last month there was a problem that after closing the lid or going into sleep mode, it actively drains the battery, it can lose up to 30-40% overnight.


Disabling all cloud services, applications, wi-fi, etc. does not solve this problem. Power Nap is disabled. 

Number of battery recharge cycles 97 (works mainly from the adapter). Battery capacity, etc. in order.

The problem was not solved even after updating to Mojave.


Help advice, in which direction to look and can someone come across a similar one?

Answer 1

The same model, the same problem, 30-40% goes away overnight. And sometimes only 20, I didn’t understand what it was connected with. PowerNap is disabled.
And now, a couple of days later, an even bigger problem appeared - the battery began to discharge very quickly during operation, and the poppy, after working a little, spontaneously turns off - it was 27% twice and now 56% once. After disconnecting, it turns on only when I connect the adapter.
The number of recharge cycles is 726, the laptop is two years old. I noticed that the "Service Required" indicator appeared on the battery. I don’t know how long ago he appeared, he could have simply ignored it before.
I found an article about resetting SMC - https://wi-fi.ru/desktop/news/7/2263000
The author strongly recommends trying this 5 times.
UPD:
Everything, a day later the battery died, writes "Replacement required" and works only on charging ... How fast everything is with them (

Answer 2

Most likely some of the running applications do not let the poppy fall asleep.
Which application can be recognized by console commands:
pmset -g and in more detail pmset -g assertions
For example, Chrome often blocks sleep if it has tabs with active Web RTC sessions or the eqMac2 equalizer also prevents the poppy from falling asleep.