Increase Battery Lifespan Of Your Laptop:

If you normally use the power adapter and only occationally use the battery (the battery is at 100% capacity at most of the time), this may accelerate the attenuation of the battery lifespan.
So if you use to charge your laptop battery within 0-80%, it will help you to extend the battery Lifespan.
And always use to charge the battery when you are operating your laptop (Or the laptop is on).