Lenovo ThinkPad L14 Gen 4 Hardware Maintenance Manual page 32
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Also See for ThinkPad L14 Gen 4:
- User manual (82 pages) ,
- Regulatory notice (37 pages) ,
- Manual (12 pages)
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5. Measure the voltage of the battery. See the following figure.
• If the voltage is correct, replace the system board.
• If the voltage is not correct, replace the coin-cell battery.
• If the coin-cell battery discharges quickly after replacement, replace the system board.
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ThinkPad L14 Gen 4 and L15 Gen 4 Hardware Maintenance Manual
Wire
Red
Black
Voltage (V dc)
+2.5 to +3.2
Ground
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