Is it worth disconnecting the laptop from the 220v network?

Question

laptops

Hello! Tell me, is it worth disconnecting the laptop from the power supply? Is a constant connection to 220v really bad for the battery?

Answer 1

If you have a Li-ION battery, then the more battery discharge, the fewer cycles.
In short, keeping it in the outlet, on the contrary, is strictly useful. Search the internet for a battery life study for screwdrivers.
a seemingly logical conclusion follows - since the battery life is measured by the number of cycles, it means that it is better to use them completely. Here, too, everything is not so simple. Firstly, a full charge and a full discharge wear out the battery faster, so do not be afraid of incomplete cycles - on the contrary, they prolong its life.
Secondly, lithium-ion batteries age and lose capacity even without use. Already after a year "on the shelf" 5-10% of the battery life is lost, after 2 years - up to 30%. Therefore, when purchasing a new portable device, pay attention to the release date of the power supply.
In general, a laptop may have a smart charge controller and it turns on when needed. That is, the laptop is powered by a wall outlet, not a battery.

Answer 2

In 3 years you will completely kill the battery, it will only hold for 20 minutes