Laptop Battery L20D4P75 L20M4P75 for Lenovo ThinkPad X1 Extreme Gen 4 (2021) Series

Replace Part Numbers
L20D4P75 SB11B79216 5B11B79218
L20M4P75 SB11B79215 5B11B79217
Compatible Laptop Models
For Lenovo ThinkPad X1 Extreme Gen 4 (2021) Series
For Lenovo ThinkPad X1 Extreme Gen 5 (2022) Series
For Lenovo ThinkPad P1 Gen 4 (2021) Series
For Lenovo ThinkPad P1 Gen 5 (2022) Series

For Lenovo ThinkPad P1 G4 Series
ThinkPad P1 G4 20Y30003GE
ThinkPad P1 G4 20Y30005MX
ThinkPad P1 G4 20Y3000AGE
ThinkPad P1 G4 20Y3000EMX
ThinkPad P1 G4 20Y3000WGE
ThinkPad P1 G4 20Y30017MZ
ThinkPad P1 G4 20Y3003MUS
ThinkPad P1 G4 20Y30017GE
Installation and usage instructions:

1. Before replacing the battery, be sure to turn off the power first and then remove the charger plug. Replacing the battery during the startup process may pose a safety hazard.
2.After removing the original battery, press the power button continuously for 10 seconds without releasing it. Release the remaining power and static electricity on the motherboard before replacing the new battery.
3. Before installing a new batter
y, confirm the positive and negative poles of the battery, especially the built-in battery, and be careful not to plug it in incorrectly.

Regarding Capacity:

Lithium batteries are consumables, and it is normal for their capacity to fluctuate by around+5% due to factors such as inventory time and usage environment.