Tap to select brightness level. If Power Save is activated, the front light turns off. 3. When finished, tap OK. Note If the remaining battery power decreases, the brightness level may be lower than the selected setting. Chapter 2: Basic Skills Setting Power To confirm and control power usage: 1. Tap , then Settings. On the System tab, tap Power. 2. Set Power Options. 3. When finished, tap OK. Displays remaining battery power. When the AC Adapter is used, the battery charging mode is displayed,