Question : If you leave your laptop connected to the power outlet with the battery inserted, the battery will be ruined "> Wikipedia in the" Guide to extending the life of a Li-Ion battery "section. According to the article, the lithium battery should be detached from the laptop when used at home and kept in a cool place with a 40% charge.
However, the benefits of removing the battery are quite limited.
For a fully charged battery, even if it remains attached to a laptop connected to the power, there are no problems from a technical point of view.
As soon as the charge level reaches 100%, it can be seen that the light or the LED that signals the recharge (this also applies to mobile phones), goes off, then the battery stops receiving energy, which is directly passed to the system power supply.
The only problem in keeping the battery in its compartment when the laptop is turned on and powered by the plug to the electrical outlet can be excessive hardware heating.
When it's hot and, for example, the laptop is used for video games or graphics programs that take advantage of the resources of the computer, the overheating that is felt in the back could ruin the battery .
So, to conclude : in normal use, if the CPU and hard disk do not exceed about 40ºC in temperature, the battery can remain in the computer.
During intensive use, however, the battery should be removed from the socket to prevent it from heating up.
Heat is the big enemy of the lithium battery, not the plug, as many might think.
There are several programs to keep the temperature of the laptop under control and, in another guide, we have seen how to cool the pc in hot weather.
In other articles we have also seen several guides for:
- Check if the laptop battery is still good and the state of charge
- Calibrate the battery of the laptop for maximum charge
- Increase the duration of the laptop battery charge
- Optimize the battery life of a laptop with energy savings in Windows 7
