LONG-LASTING BATTERY LIFE- With 11.4V capacity ( 44Wh/ 3900mAh ), The ( 45N1742 ) battery ensures all-day power for your laptops in a factory-fresh, Never-used battery pack designed for maximum performance.
PERFECT-FIT BATTERY MODELS- Support for 45N1740 45N1741 45N1742 45N1743 00NY639 SB10K12721.
GUARANTEED FIT THESE LAPTOP MODELS- Compatible with Lenovo ThinkPad T550 T550s Notebook, ThinkPad T560 Notebook, ThinkPad W550 W550s Notebook, ThinkPad P50s Mobile Workstation.
SAFE AND RELIABLE- Our products have built-in multiple circuit protections to eliminate the risk of overheating/overcharging, And have been UL certified. No debugging or driver identification is required, And it can be used immediately after installation.
ANGEL SERVICE- Comes with installation tools, Which is an ideal choice for business travelers/students/office workers. Backed by a 12-month worry-free warranty, So you can buy with confidence.