When Should I Charge My Laptop Battery. This post explains why you should plug your modem and router into a battery backup device. Answer 1 of 3.

A laptop is designed to work with a battery. Windows also says that your computer might shut down suddenly because theres a problem with your battery in other words your battery cant hold enough of a charge to power your laptop for long when its not connected to an outlet. Say you let your battery run dry before recharging it back to 100 percent.
After the battery discharges a bit the charger will kick into gear again and top the battery off.
Overcharging any kind of device is bad for its battery health. Basically if you charged your laptop to 85 to 90 instead of to 100 you could improve your battery lifespan by 6 months to a year. This option is available either on a custom tab inside the. This memory effect lowered the useful life of a charge dramatically requiring the purchase of a new battery long before it should have reached the end of its useful life.

