Power Properties (Battery Tab) Screen
The Power Properties window only shows the battery charge level if you are using the battery pack. If you have connected the AC adapter, the window shows the recharging status of the battery.
NOTE: If you have just powered on your Aero 2100 Series, or disconnected it from AC power, the battery gauge may appear blank. Wait a few moments before checking the battery pack charge.
Low Rechargeable Battery Indicators
When the charge level in the battery pack becomes low, the battery icon appears in the taskbar. The battery icon gives a graphic representation of the amount of charge remaining in the battery pack.