Apple PowerBook (Duo 270C) - Manual (Page 82)

Open the Battery desk accessory
The Battery desk accessory tells you approximately how much
power is left in the battery as you use the computer.
To open the Battery desk accessory:
n
Choose Battery from the Apple (K) menu.
You can leave the Battery desk accessory open to keep track of
the battery charge while you work. The desk accessory works like
a fuel gauge (the solid bars indicate how much power is left).
For more information on how to use the Battery desk accessory,
go to the power management chapter in Part III of this book.
Open the PowerBook control panel
The PowerBook control panel lets you control the balance
between power consumption and system performance (it also lets
you control other PowerBook features).
To open the PowerBook control panel:
1. Choose Control Panels from the Apple (K) menu.
66 Chapter 4: Learning More About Your PowerBook