When using a laptop, are you worried that leaving it plugged in for a long time will shorten the battery life? Does a laptop need to be plugged in all the time? How can you reduce damage to the battery?

Some people are used to keeping their laptops plugged in to keep the battery at 100%. However, most laptop batteries now use lithium batteries. If the laptop is fully charged for a long time, the battery may become passivated and affect the battery capacity.

are used to using their laptops until they are out of power before charging them may worry that deep discharge or even over-discharge will irreparably damage the battery. However, most manufacturers currently usually design battery management systems so that your laptop does not reach the level of deep discharge when it is out of power.

How to switch between laptop power and battery

When our laptop is connected to a external power source, in most cases the laptop will automatically give priority to the external power supply. At this time, the power adapter will provide stable power to the laptop and charge the battery at the same time. During this process, the power management system inside the laptop will automatically detect the power supply connection and automatically switch, which the user cannot perceive. And the use of the laptop will not be affected .

When we unplug the power adapter, the laptop automatically switches to battery power seamlessly. The only noticeable thing is that the screen brightness will decrease slightly.

Different brands of laptops have different switching logics for power and battery in different modes. Some brands have internal software that allows users to directly set the battery charging threshold. For example, you can set it to start charging only when the battery power is less than 50%. Or stop charging when the battery power reaches 80 % or 90%, thus extending the battery life.

Is it better to use a laptop while it is charging ?

Regarding the battery life, I wonder if you have ever wondered: Is it better to use a laptop while charging it, or to charge it when it runs out of power?

lithium batteries after updates and iterations, so deep discharge doesn't make much sense.

On the contrary, if the battery is often below 20%, the battery consumption rate will become faster and the damage to the battery will be greater. And I believe everyone has experienced that sometimes the high performance of the laptop cannot be brought into play without being plugged in .

Can I use the laptop while charging it? It doesn’t matter if it is charged to 100%? Since the laptop cannot be charged until it is completely empty, some people may wonder : If I keep plugging it in and use it, is it okay to continue charging it when the battery is 100% full? In this regard, everyone is simply worried that the laptop will be in an overcharged state, and that if the battery is fully charged and it is still charged, it will cause damage to the battery, or even explode?

There is no need to worry. Most laptops nowadays come with a built-in BMS system, or battery management system. Under the control of this system, once the battery is fully charged, it will automatically switch to AC power and stop charging the battery.

How to store a laptop that is not used for a long time ?

Some friends may own more than one laptop . For spare machines that are not often used, we recommend that you keep the battery level at around 50% before shutting down to protect the battery.

Why do you need to keep the battery level at around 50%? Because even when the device is turned off, the battery will still discharge secretly, so if you store the device for a long time with the battery completely exhausted, the battery may be deeply discharged, causing structural damage and completely unable to be charged.

Why not just fully charge the laptop and shut it down for storage? Because if the laptop is fully charged for a long time, the battery will be easily degraded and the battery capacity will be reduced.

a laptop computer that is not often used at about 50% battery can extend the battery life.

If this article still doesn't help your laptop battery, you can buy a new battery at  BatteryMall.com

If you want to learn more about batteries, please visit: BatteryMall.com/blogs/support