45N1742 Battery 44Wh 3900mAh Replacement for Lenovo ThinkPad T550 T550s T560 W550 W550s P50S Series 45N1743 45N1740 45N1741 00NY639 SB10K12721 11.4V 3-Cell

SpecificationsBattery Model: 45N1742 // Voltage:11.4V // Capacity:44Wh 3900mAh // Color:Black // Condition:Brand New.
Replacement for Part Number45N1742 45N1743 45N1740 45N1741 00NY639 SB10K12721
Compatible with Machine Modelsfor Lenovo ThinkPad T550 (Type: 20CJ 20CK)Series; for Lenovo ThinkPad T550s Series; for Lenovo ThinkPad T560 (Type: 20FH 20FJ)Series; for Lenovo ThinkPad W550 Series; for Lenovo ThinkPad W550s (Type: 20E1 20E2)Series; for Lenovo ThinkPad P50S (Type: 20FK 20FL)Series. (NOTE: These laptops are compatible with batteries of various capacities (44Wh, 24Wh, 48Wh, 72Wh). The 44Wh battery has a different shape from other capacities battery. To avoid purchasing the wrong battery, please open your laptop's back cover to check the original battery and its capacity.)
SafetyAll FCZFCZ products are Certified by CE, UL for safety. Each battery is factory tested before shipment and at good condition, and have its mark. Built-in circuit protection ensures both safety and stability. Each battery has high capacity to provide enduring, continual use.
InstructionsPlease open the back cover of the laptop before purchasing and confirm that the original battery type is the same as the picture. Please read the battery instruction manual carefully before installing the battery. Please install the battery correctly and ensure that the battery interface and the motherboard are firmly connected. Please use the original charger to charge the laptop. After battery installation, discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery.