Laptop Battery L20M4P73 for Lenovo ThinkPad X13 Gen 2 (2021) Series

Replace Part Numbers:
L20D3P72 L20M4P73 SB10W51919 5B10W51818
L20D4P73 SB10W51921 5B10W51820
L20C4P73 SB10W51920 5B10W51819
5B10W51817

Compatible Laptop Models:
For Lenovo ThinkPad X13 Gen 2 (2021) Series
For Lenovo ThinkPad X13 Gen 3 (2022) Series
TP00131A? TP00131C
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.