How do I adjust the

Not exactly sure what it is you were hoping for besides exact directions. You left no comment as to what operating system you were using. Desktops by the way don't have a battery. I gave you the best answer available, and have been backed up by the next person who answered ( gave you the same fix ) let us know what it is your trying to do and maybe we can help. Giving a not appropriate and not saying why in my opinion is just rude.