Is It Good To Charge Laptop To 100. If you have a fairly modern laptop it will have either a Li-ion lithium-ion or LiPo lithium polymer battery. 4 years later when I replaced it the battery still lasted almost as long as it did when new despite being plugged into AC power almost the entire 4 years.
They say that this will help prolong the life of the battery in the laptop to as much as quadruple than if you were to charge to 100 and drop it to 0. Battery charging is as Steve Schafer said a complicated issue. Also since most modern laptops use lithium-ion batteries theres no need to worry of your laptop being overcharged since lithium-ion batteries stop charging.
They say that this will help prolong the life of the battery in the laptop to as much as quadruple than if you were to charge to 100 and drop it to 0.
Battery charging is as Steve Schafer said a complicated issue. In practice it means that the battery charged to 100 will lose its ability to store electric charge faster than the other battery. Some companies will show 100 even if it is only maxing out at a lower number to prevent complaints due to unavoidable battery life issues. The laptop will just run directly off the power cable.
