Lenovo SL410 User Manual - Page 61
Voltage V dc, If the backup battery discharges quickly after replacement, replace the system - battery replacement
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4. Remove the backup battery (see "1130 Backup battery" on page 102). 5. Measure the voltage of the backup battery. See the following figure. Red (+) Black (-) Wire Red Black Voltage (V dc) +2.5 to +3.2 Ground v If the voltage is correct, replace the system board. v If the voltage is not correct, replace the backup battery. v If the backup battery discharges quickly after replacement, replace the system board. General checkout 53
4.
Remove the backup battery (see “1130 Backup battery” on page 102).
5.
Measure the voltage of the backup battery. See the following figure.
Red (+)
Black (-)
Wire
Voltage (V dc)
Red
+2.5 to +3.2
Black
Ground
v
If the voltage is correct, replace the system board.
v
If the voltage is not correct, replace the backup battery.
v
If the backup battery discharges quickly after replacement, replace the system
board.
General checkout
53