Laptop Battery L21L4PG1 for Lenovo ThinkPad L13 Gen 3 (Type 21B3, 21B4, 21B9, 21BA) Series

Replacement Battery:
L21L4PG1 SB10W51952 5B10W51851 SB11H56238 5B11H56337
L21M4PG1 SB10W51949 5B10W51848 SB11H56235 5B11H56334
L21C4PG1 SB10W51950 5B10W51849 SB11H56236 5B11H56335
L21D4PG1 SB10W51951 5B10W51850 SB11H56237 5B11H56336

Compatible Laptop Models:
For Lenovo ThinkPad L13 Gen 3 (Type 21B3, 21B4, 21B9, 21BA) Series
For LenovoThinkPad L13 Gen 4 (Type 21FG, 21FH, 21FN, 21FQ) Series
For Lenovo ThinkPad L13 Yoga Gen 3 (Type 21B5, 21B6, 21BB, 21BC) Series
For Lenovo ThinkPad L13 Yoga Gen 4 (Type 21FJ, 21FK, 21FR, 21FS) 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.