Laptop Battery T440P for Lenovo ThinkPad T440P T540P

Replace Part Number:
45N1144 45N1145
45N1148 45N1149
45N1150 45N1151
45N1158 45N1159
45N1152 45N1153
45N1149 45N1151
45N1769 45N1779
Compatible Laptop Model:
For Lenovo ThinkPad?T440P T540P W540 W541 L440 L540 Seies

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.