**Specification**
Voltage: 11.4V.
Capacity: 44Wh 3900mAh.
Battery Type: Li-ion.
Condition: 100% New from Manufacturer.
Condition: Brand new, made from high quality materials, top circuit boards and smart chip. **Compatible Part Number** 45N1740 45N1741 45N1742 45N1743 SB10K12721 00NY639. **Compatible Laptop Models** Fit for Lenovo ThinkPad P50s (20FLA005CD), ThinkPad T550(20CJ-J001SAU), ThinkPad T550(20CK-K0029AU), ThinkPad T550(20CJ-J0009AU), ThinkPad T550(20CJ-J001VAU), ThinkPad T550(20CK-K002CAU), ThinkPad T550(20CJ-J000HAU), ThinkPad T550(20CJ-JA002AU), ThinkPad T550(20CJ-J000XAU), ThinkPad T550(20CK-K002FAU), ThinkPad T550(20CJ-JA00EAU), ThinkPad T550(20CK-K002JAU), ThinkPad T550(20CJ-J0011AU), ThinkPad T550(20CJ-JA00VAU), ThinkPad T550(20CJ-J001CAU), ThinkPad T550(20CK-K002MAU), T560-0CCD, ThinkPad T550(20CJ-J0019AU), ThinkPad T550(20CJ-JA01HAU), ThinkPad T550(20CK-K002QAU), T560-0FCD, ThinkPad T550(20CJ-JA027AU) Series. Every replacement battery is tested under strict quality control standards to ensure true capacity, stable current and low self-discharge. All batteries are UL / CE / FCC / RoHS Certified for safety, offering reliable performance as a replacement battery