Справочник Пользователя для Samsung NP365E5CS02US

In the Settings program, click Power Management and set the 

Battery Life Extender to ON or OFF. 

This mode maintains 100% of the battery 

charge when using the computer on AC power. 

In this case, although the battery use time 

increases, the battery life is reduced.

This mode maintains 80% of the battery charge 

when using the computer on AC power. In this 

case, although the battery use time decreases, 

the battery life is extended. 

Alternatively, to extend the battery life
Press the F2 key when the Samsung logo appears in the 

booting sequence to enter the BIOS Setup, select Advanced 

> Battery Life Cycle Extension, and set it to Enable.  

Then you can use the battery life cycle extension mode.