Specification:
Battery model:45N1742
Voltage:11.4V
Capacity:3990mAh/44WH
Battery Type: Li-polymer
Cell: Made in China
Color: Black
Condition: Replacement Battery (100% Brand New,2 years warranty!)
Replace Part Numbers:
45N1740 45N1741 45N1742
45N1743 00NY639 SB10K12721
Compatible Laptop Models:
For Lenovo ThinkPad T550 Series
For Lenovo ThinkPad T550s Series
For Lenovo ThinkPad W550 Series
For Lenovo ThinkPad W550s Series
Notice:
Not all compatible laptop models are listed or included here.
You can open the back of your laptop to check the original battery model number.
Please contact us online if you have any question for the compatibility.