11.1V, 3850mAh, Li-ion Battery fits Clevo, P640hj, P640hk1, 42.735Wh

Battery Fits Models:- P640hj, P640hk1, P640re, P640rf, P641hj, P641hk1, P641rf

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Battery Part Numbers:- CS-THP407NB

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Our batteries from Cameron Sino are built using the highest quality components manufactured by the world's leading factory. This battery will function the same as the OEM battery. Our battery should have the exact dimensions and fitment as the original battery; the fit and finish are checked before dispatch. Choosing the correct battery can be an absolute nightmare and very difficult for those of you less technically inclined. We recommend that you remove the old battery before ordering if possible. This is the best thing to do. Quite a few manufacturers have 2 or 3 different batteries fitted in one model. We can usually confirm fitment from the battery model number for you.  Choosing the correct battery can be an absolute nightmare and very difficult for those of you less technically inclined. We recommend that you remove the old battery before ordering if possible. This is the best thing to do. Quite a few manufacturers have 2 or 3 different batteries fitted in one model. We can usually confirm fitment from the battery model number for you.  If you cannot confirm the battery number before ordering, it may be best to contact us before placing your order. A 12 Months warranty is usually standard on our Cameronsino products. It will be stated in the information box if it is different. Different chemistries of batteries have other cycle lives; Li-Ion usually lasts for around 400 to 500 cycles, Lithium Polymer is the same. Nimh batteries will usually last for about 500 cycles. A cycle is a full discharge and recharge of the battery. Our ISO 9001 certified factory uses the best quality components and manufactures its products to the exact high specifications as the OEM factory battery. We Endeavour to make our batteries meet or exceed the original batteries' specifications. The products that this replacement battery is designed to replace are shown below. Special Remarks:- None at this timePlease make sure that the device manufacturer, The model number, and the battery part number are all listed in our product details. Some manufacturers have more than one battery type fitted in like models. We recommend that you remove the original battery before ordering to confirm this. If you are not sure, we may verify for you.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.