Is it good for the battery to keep the laptop plugged in?
In fact, there is no problem, you can always plug in the power supply.
1. Lithium batteries have a limited lifespan, and constant charging and discharging will damage the battery life. Usually the test standard of notebook manufacturers is 500 complete charge and discharge cycles, and the battery capacity loss cannot be less than 80% of the total capacity. In other words, if you charge and discharge the battery once a day, the battery capacity will decrease by 20% in less than two years, and it will be more prone to damage. If you really want to talk about storage, in fact, it is not good to charge the battery too much. Usually the battery is 60% of the power when it is shipped and transported.
2. When the laptop battery is fully charged, the laptop will stop charging the battery, so plugging in the power supply will not affect the battery. Some students’ computers have pluggable batteries, and they like to remove the batteries for use, but it’s actually unnecessary.
3. It should be noted that the battery will self-discharge. That is to say, the battery will automatically decrease when it is left alone, although it is minimal. However, when the battery is low and not used for a long time (for half a year or a year), overdischarge may occur. Over-discharge is irreversible to the lithium battery, which basically means it is scrapped.