3.7V, 3400mAh, Li-Polymer Battery fits Bq, Aquaris 5.7, 12.58Wh

Battery Fits Models:- Aquaris 5.7

---

Battery Part Numbers:- B21, Bt-4000-259

---

The battery shown will replace your original and provide you with an economical alternative to expensive OEM batteries; we also guarantee the battery to be fresh and free from defects.  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. 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.  Our replacement batteries are designed to replace the models that we list in our tables below.  If for any reason, the product develops a manufacturing defect during the 12 month warranty period, we will replace the defective item free of charge. If you look after your new battery and only charge the battery when it gets low, This will extend the battery's life. If the battery is charged too often, you will quickly use up the cycle life. 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. This replacement battery is designed to replace the models shown below. Special Remarks:- None at this timeYou must check that you are going to order the correct battery. To be certain of fitment, make sure that the battery number, device model, and manufacturer are listed in the description. This is the only guarantee that this is the correct battery. Contact us if you would like us to confirm 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.