IBM PS/2 CL57 SX Hardware Maintenance Reference page 21

5.2 Checking the Battery Packs
1. Remove each battery pack and measure the voltage at the battery
terminals between (+) and (-).
PICTURE 4
+------------------------------------------------------------------------+
¦ Terminal
+------------------------------------+-----------------------------------¦
¦ (+)
+------------------------------------+-----------------------------------¦
¦ ( T )
+------------------------------------+-----------------------------------¦
¦ ( - )
+------------------------------------------------------------------------+
If the voltage is less than +12 V dc, the battery pack is
discharged or defective.
If the voltage is more than +12 V dc, go to the next step.
2. Using a low-power ohm meter, measure the resistance at the battery
terminals between
(T) and (-). The resistance must be
500 ohms to 20 kilohms.
If the resistance is out of range, replace the battery pack.
IBM PS/2 Model CL57 SX HMS
Checking the Battery Packs
¦ Voltage (V dc)
¦ +12 to +18
¦ Thermal Detection
¦ Ground
¦ Copyright IBM Corp. 1992
5.2 - 1
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