HP Compaq Series Hardware Manual page 42

Displaying Charge Information on a
MultiBay Battery Pack
You can determine the percentage of a full charge remaining in a
battery pack that is not inserted into the MultiBay by using the
battery Quick Check feature. MultiBay battery packs have battery
Quick Check. Primary battery packs do not.
To display the percentage of a full charge remaining in a
MultiBay battery pack, press the Quick Check button 1 on the
MultiBay battery pack.
The Quick Check lights 2 indicate the amount of charge
remaining in the battery pack. The greater the charge, the more
lights that turn on when you press the Quick Check button. When
all of the lights are on, the battery pack has a great deal of charge.
When only one light is on or blinking, the battery must be
charged.
Hardware Guide
Battery Packs
3–10