11.4V, 3900mAh, Li-Polymer Battery fits Lenovo, Thinkpad T550, Thinkpad T550 15.5", 44.46Wh

Battery Fits Models:- Thinkpad T550, Thinkpad T550 15.5", Thinkpad T550 I7-5600u, Thinkpad T550s, Thinkpad T560, Thinkpad W550, Thinkpad W550s

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Battery Part Numbers:- 00ny639, 45n1740, 45n1741, 45n1742, 45n1743, Sb10k12721

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Cameron Sino is one of the world's most successful third-party battery manufacturers; check out our products and service reviews. All are verified and genuine. Our battery should have the exact dimensions and fitment as the original battery; the fit and finish are checked before dispatch. Contact us if there is any doubt about the fitment of the battery for your device. We can select the correct battery for you. If we make the selection, you can be assured that if there are any fitments, the exchange or return falls to us, and we will cover any costs involved. Contact us if there is any doubt about the fitment of the battery for your device. We can select the correct battery for you. If we make the selection, you can be assured that if there are any fitments, the exchange or return falls to us, and we will cover any costs involved. The models that this battery will fit are shown in the tables below. Check that both the model of your device and battery number match your original battery. Our warranty is valid for one year unless otherwise stated. The warranty covers the product against any manufacturing defect.   Lithium-Ion and Lithium-polymer cells usually last for between 400 and 500 cycles; Nimh cells can be charged for around 500 cycles, cycle life will vary according to several different factors. There is no set life cycle of any of these cells. Factors that influence their lives include temperature, humidity, and charges.  Being an ISO 9001 certified factory means that the Cameron Sino range of batteries must be manufactured with only the highest quality components. You can rest assured that the batteries we supply are thoroughly tested in the devices they are designed for and built with the same safety protocols as the original OEM battery. All of the known fitments for this product can be seen in the table below. Special Remarks:- None at this timeThe manufacturers supply all information regarding fitment as a final check; it's worth comparing your original battery with the one shown. We keep our records as up-to-date as possible, but new fitments come on stream every week due to the launch of new products.Sometimes there may be a variance in the capacity of our batteries compared to the original. Usually, this depends on the availability of the cells contained within.