3.7V, 650mAh, Li-Polymer Battery fits Sony, Nwz-820, Nwz-a720, 2.405Wh

Battery Fits Models:- Nwz-820, Nwz-a720, Nwz-a726, Nwz-a728, Nwz-a729blk, Nwz-a826, Nwz-a828, Nwz-a829, Nwz-s738, Nwz-s738f, Nwz-s738fbnc

---

Battery Part Numbers:- 1-756-702-11, 1-756-702-12, 8315a32402, 8917a44167, Lis1374hnpa

---

The replacement battery listed here is developed using the highest quality components.  The battery shown on this page is manufactured using the highest quality parts. 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. Our replacement batteries are designed to replace the models that we list in our tables below.  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. Battery life is dictated by several factors, including temperature, charging frequency, and type of charger. As a rule of thumb, Nimh cells can be charged around 500 times, Lithium-Ion around 400 times, and Lithium-polymer Around 400 times. This can increase or decrease depending on the use 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 Products below should be replaced perfectly by our battery Special Remarks:- 2021.12 Capacity changed from 750mAh to 650mAhConfirm that all the details listed below match your original battery before ordering. Some models have more than one battery type available, and the only way you can confirm the correct battery is to remove the original.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.