Troubleshooting Symptom Charts/Power - 7
Power
Low-power warning
appears
1 Recharge battery or attach power adapter.
2 Verify that peripherals are low-power.
3 Remove external devices or connect power adapter.
4 Try known-good, charged main battery.
5 Try known-good power adapter.
6 Replace motherboard.
Computer runs when
plugged into wall
outlet but not on
battery power;
battery voltage is
within tolerance
1 Reseat battery to make sure it is mating with contacts on
motherboard.
2 If motherboard includes removable fuse, replace fuse.
3 Replace motherboard.
4 Return computer to Apple.