11.1V, 6600mAh, Li-ion Battery fits Imperio, 4000, 4000a, 73.26Wh

Battery Fits Models:- 4000, 4000a, 4500, 4500a

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Battery Part Numbers:- CS-FU1640DB

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Our equivalent battery is made with premium cells and is rated as shown in the specifications on the product page. Our battery should have the exact dimensions and fitment as the original battery; the fit and finish are checked before dispatch. If you are not sure which battery you need to order, contact us first. We can confirm the fitment for you. Please be prepared to give us as much data as possible to decide the best product for your device. If you are not sure which battery you need to order, contact us first. We can confirm the fitment for you. Please be prepared to give us as much data as possible to decide the best product for your device. Usually, we can confirm fitment for you. If you are not sure how to locate the correct information on your device, please get in touch with us, and we will identify the correct battery for you. Our warranty is valid for one year unless otherwise stated. The warranty covers the product against any manufacturing defect.   How long will my new battery last? This is tough; many factors will determine your new battery's longevity. As a rough guide, you should get around four to five hundred charges out of your new battery. The batteries we supply are manufactured to a very high standard. To keep our ISO 9001 certification, strict protocols need to be followed. This ensures that the replacement batteries are safe to use in the device they were designed for. This battery should meet or exceed the specifications of the original OEM battery. Check that your product is shown below in the products table. 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.Mah is the figure that estimates the charge that a battery will hold. The higher the Mah, the longer the runtime.