11.1V, 4400mAh, Li-ion Battery fits Clevo, Aquado M1519, Nexoc B509ii, 48.84Wh

Battery Fits Models:- Aquado M1519, Nexoc B509ii, W155eu, W155u, W540eu, W545eu, W550eu, W550su, W550su1, W550su2, W550tu, W551su1, W650kk

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Battery Part Numbers:- 6-87-w540s-427, 6-87-w540s-4271, 6-87-w540s-4u4, 6-87-w540s-4w41, 6-87-w540s-4w42, W540bat-6

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The battery shown on this page is manufactured using the highest quality parts. Canadian Batteries have supplied the replacement batteries from Cameron Sino for nearly a decade. We have had zero instances of a product being damaged while using one of our batteries in that time. Finding the correct battery for your product can be difficult. There are so many models and part numbers it can be confusing. It's easier to reach out to us first than to return the product later. Please get in touch with us if you are unsure which battery you need. Finding the correct battery for your product can be difficult. There are so many models and part numbers it can be confusing. It's easier to reach out to us first than to return the product later. Please get in touch with us if you are unsure which battery you need. Please compare the data below with the models that you see in the tables. If you cannot match both the model and battery number, contact us to confirm fitment for you. We offer a one-year warranty to guarantee against manufacturing defects unless otherwise stated; the warranty covers against defects from manufacture but not if the battery has been misused or modified. As a rough guide, lithium Ion batteries can be charged around 400 times, Nimh usually around 500 times, and Lithium-polymer around 400 times.  ISO 9001 certification ensures that strict manufacturing standards are adhered to. Safety is a primary concern, and we use only high-quality components to ensure that stringent standards are met. The batteries we supply should perform as well as your original. This replacement battery is designed to replace the models shown below. Special Remarks:- None at this timeThere are so many different models of batteries available today for so many other products. It's easy to make a mistake. It may be worth confirming with us if you are unsure which battery to order. We try to keep our records updated to the best of our ability, but manufacturers can change fitment without notice.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.