Checkout guide
Note: If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
To check the battery pack, do the following:
1.Power off the computer.
2.Remove the battery pack and measure the voltage between battery terminals 1
(+) and 7 (−). See the following figure:
Terminal | Voltage (V dc) |
3 4 5
1(+) 2(+)
1 | + 0 to + 12.6 |
|
|
7 | Ground (−) |
3.If the voltage is less than +11.0 V dc, the battery pack has been discharged.
Note: Recharging will take at least 3 hours, even if the indicator does not turn on.
If the voltage is still less than +11.0 V dc after recharging, replace the battery.
4.If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 4 and 7. The resistance must be 4 to 30 K .
If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.
28MT 8922
