There's not a System Icons icon in the Control Panel (icons view), but you should also be able to click on the Notification Area Icons icon in the Control Panel (icons view) to see that as well.
You could use this tutorial to turn off the "Power" icon, or set the "Power" icon to Hide icon and notificationsto not have it displayed. However, there's not an option to have the "Power" icon noy display except for when there's a battery detected.