Laptop Battery Replacement?

1. Safety preparation steps
Turn off the computer and disconnect the power:
Turn off the computer → Unplug the power cord
Press and hold the power button for 30 seconds to release residual current
2. Anti-static measures:
Use an anti-static bracelet
or touch a metal surface to discharge the electricity
3. Quickly identify the battery model
 Check the battery information by command:
powershell
powercfg /batteryreport
Report path: C:\Windows\System32\battery-report.html
Key Information: DESIGN CAPACITY, BATTERY ID
4. Physical check (for removable batteries)
Flip the notebook over to view the battery compartment
Look for similar code: L18M3PG (Lenovo) / 02DL001 (Dell)
5. Calibration steps after replacement
Fully charged: Connect to power source until 100%.
Deep Discharge:
Unplug the power supply → Use until automatic shutdown
Leave for 2 hours
Recharge fully:
Charge to 100% without interruption
Press Win + X → Terminal (Administrator) → Execute:
powershell
powercfg /batterysaver on