Checking the Backup Battery
Checking the Backup Battery
- Power-off the computer and unplug the AC Adapter
from the computer.
- Open the keyboard, and remove the battery pack and the
diskette drive.
- Remove the backup battery from the system board.
- Measure the voltage of the backup battery.
| Wire |
Voltage (Vdc) |
| Red |
+2.5 to +3.7 |
| Black |
Ground |
- If the voltage is correct, replace the system board.
- If the voltage is not correct, the backup battery has been
discharged. Replace the backup battery.
- If the backup battery discharges quickly after replacement,
replace the system board.
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.