IBM-AUSTRIA - PC-HW-Support    30 Aug 1999

Testing the Rechargeable Battery (8543)

1.  Remove the keyboard.
2.  Set the rechargeable battery in place without  connecting any external power devices.
3.  Measure the voltage between terminals 1 (+) and 2  (-) and note the voltage.
    
   
4.  Using the AC adapter, apply external power to the computer.  Make sure that a charge arrow appears in the system-status display.
5.  Measure the voltage again between terminals

     1 (+) and 2 (-).

    If the voltage is not greater than the one measured in Step 3,  replace the AC adapter.
    If the voltage is greater than  the one measured in Step 3, go to the next step.

6.  Remove the rechargeable battery from the computer.
7.  Measure the voltage at the battery terminals.
    
   

   Pin	Voltage (Vdc)
   1	+8.5 to +12.6
   3	Ground

    

    If the voltage is not correct, the rechargeable battery is  discharged or defective. If the voltage is correct, go to the next step.

8.  Using a low-power ohm meter, measure the resistance at the  battery terminals between

    2 (T) and 3 (-).

     The resistance must be 4 kilohms to 30 kilohms.

    If the resistance is out of range, replace the rechargeable battery.

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