The answer is yes. When you first use your laptop charge the batt when the batt is full unplug and use laptop until the batt icon tells you to plug back in. You do this about three times charge and dis-charge this conditions the batery for opt performance. When you injtend not to move the laptop undo battery when fully charged (turn of laptop first) and run from the mains. constantly running from mains with batt attached will shorten the life of the batt.