Apple Macintosh PowerBook 150 - Manual (Page 113)

The battery can’t be recharged.
m There may be a loose connection. Take the battery out and put it back in
the computer.
m If all connections are OK, then the battery is probably damaged or dead.
You’ll need to obtain a replacement battery from an Apple-authorized
dealer.
The computer goes to sleep too often.
m Open the PowerBook control panel and move the Battery Conservation
slider to Better Performance.
The PowerBook won’t run off the battery or the battery won’t charge.
m Make sure your PowerBook is running system software version 7.1.1 or
later.
m There may be a loose connection. Take the battery out and put it back in
the computer.
The computer doesn’t go to sleep automatically.
m You may have dragged the System Sleeps slider to Never in the Custom
view of the PowerBook control panel. Drag the slider to a lower setting.
m You may be connected to a shared disk on the network. If you are not using
the information on the shared disk, disconnect from it.
m The printer port or the internal modem (if one is installed) may be in use.
Quit your telecommunications program or delay printing in the Chooser (if
the documents you’re printing can wait until later).
m When application programs are working in the background, the computer
doesn’t go to sleep. In this case, choose Sleep from the Special menu.
m The computer does not go to sleep if AppleTalk is active and the power
adapter is plugged in. Turn AppleTalk off in the Chooser or in the
AppleTalk Switch module of the Control Strip.
See Chapter 6 for more information about batteries and power consumption.
105 Tips and Troubleshooting