Laptop Battery L20D4P71 L20M4P71 for Lenovo ThinkPad X1 Carbon Gen 9

Replacement Battery:
L20M4P71 SB10T83216 5B10W13973
L20C4P71 SB10T83217 5B10W13974
L20D4P71 SB10T83218 5B10W13975
L20L4P71 SB10T83215 5B10W13972

Compatible Laptop Models:
For Lenovo ThinkPad X1 Carbon Gen 9 (X1 Carbon 2021) Series
For Lenovo ThinkPad X1 Carbon Gen 10 (X1 Carbon 2022) Series
For Lenovo ThinkPad X1 Yoga Gen 6(X1 Yoga 2021) Series
For Lenovo ThinkPad X1 Yoga Gen 7(X1 Yoga 2022) Series
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.