Power Management Monitoring Battery Power Monitoring Battery Power The primary source of power for the OmniBook is its rechargeable battery pack. You can use the ac adapter to recharge the battery—or to run on ac power to preserve the battery. Important Running external connections is a power-intensive operation that significantly shortens the length of a battery session. Whenever possible, connect the ac adapter when using external connections. This section describes how to ♦ Check the battery status. ♦ Update the battery status indicator. ♦ Respond to a low-battery warning. ♦ Recharge a battery. ♦ Replace the main battery. ♦ Install a secondary battery. 4-3