11.1V, 4250mAh, Li-Polymer Battery fits Lenovo, Thinkpad T431s, 47.175Wh

Battery Fits Models:- Thinkpad T431s

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Battery Part Numbers:- 45n1120, 45n1121, 45n1122, 45n1123, Asm 45n1122, Asm P/n 45n1122, Fru 45n1123, Fru P/n 45n1123

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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. If you are worried about the quality or the performance of the products from Cameronsino, take a look at the reviews from our customers. Sound quality is assured as the products are manufactured to a very high standard  There can be occasions when the battery model number or the model of your device is not listed in the information below. Don't despair contact us via live chat or email, and we can confirm fitment for you. If we tell you that a battery will fit and it does not, we will cover all expenses to get the battery returned for an exchange or a full refund. There can be occasions when the battery model number or the model of your device is not listed in the information below. Don't despair contact us via live chat or email, and we can confirm fitment for you. If we tell you that a battery will fit and it does not, we will cover all expenses to get the battery returned for an exchange or a full refund. If both your device's battery and model number are shown in the table below, you should be good to order. Our warranty period is usually stated here on the product page; Most products come with a 1-year warranty, Some products do have six months. Details of what is included in our contract can be seen on our information pages. The average life of a Li-ion battery is around 400 cycles; This is the same for Lithium Polymer. Nimh should last for about 500 cycles. (A cycle is a discharge and recharge.) Please remember that a cycle will still be used, even if only partially discharged, then recharged. It's always best to run the battery low and recharge when it reaches about 10% of its charge left. This will extend the life of the battery. All the batteries we supply by Cameron Sino are designed to be as long-lasting as the original OEM battery. Our ISO 9001 certified battery uses high-quality components, and each cells rating can be seen in the table above. Actual capacity and voltage may vary slightly from the original due to cell availability. The devices that this battery is known to fit can be seen in our listing 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.If the battery's capacity is different from that of your original, this does not mean that ours does not match; it just means that our replacement battery will store slightly less or slightly more charge than the original.