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Main image of 45N1742 45N1741 45N1743 Laptop Battery for Lenovo ThinkPad T550 T550s T560 45N1740 44Wh for ThinkPad W550 W550s P50S Type 20CK 20CJ 20FH 20FJ 20E2 Series SB10K12721 00NY639 3ICP/7/61/70 3ICP7/62/66

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Alt view image 6 of 7 - 45N1742 45N1741 45N1743 Laptop Battery for Lenovo ThinkPad T550 T550s T560 45N1740 44Wh for ThinkPad W550 W550s P50S Type 20CK 20CJ 20FH 20FJ 20E2 Series SB10K12721 00NY639 3ICP/7/61/70 3ICP7/62/66

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45N1742 45N1741 45N1743 Laptop Battery for Lenovo ThinkPad T550 T550s T560 45N1740 44Wh for ThinkPad W550 W550s P50S Type 20CK 20CJ 20FH 20FJ 20E2 Series SB10K12721 00NY639 3ICP/7/61/70 3ICP7/62/66

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**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

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**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

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First Listed on Newegg	October 08, 2026

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Return for refund within: 30 days
Return for replacement within: 30 days
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Item#: 9SIC8EAM868727