Macbook Pro 2015, began to discharge in 1-2 hours?

Question

macOS

Before that, I used the same programs as always, a couple of IDE consoles, chrome.
Worked 5-6 hours. Literally in a month, the work time began to decrease to 3x, then to 2x, now it takes 1 hour to sit down.
Began to make noise and get warm.
There are two options, either it's a virus and someone is mining something, or it happened after upgrading to 10.12.5 Sierra
. What could be the matter, maybe someone encountered the same? Computer less than a year old

Answer 1

System Monitor -> Energy,
look who is eating energy. If you can see it there, kill the process. Also pay attention to the CPU tab, there, too, someone harmful / buggy can burn.
On the health of the battery - put Battery Health. It actually displays the current maximum battery. If it is like 50-60% of the original - the battery has degraded, change it.

Answer 2

Batteries degrade.
Why not smoothly: a critical voltage drop has only now begun to appear. Lithium almost to full discharge gives current without much voltage drop.

Answer 3

2 years for lithium is a normal period. After that, a sharp subsidence begins.
This is the norm.

Answer 4

If the computer is less than a year old - drag it to the service, they will replace it under warranty! Well, it’s not a sin to buy an apple car with a retina.