650mAh 2.41Wh Battery Replacement for Sony NWZ-820, NWZ-A720, NWZ-A726, NWZ-A728, NWZ-A729BLK, NWZ-A826, NWZ-A828, NWZ-A829, NWZ-S738, NWZ-S738F, NWZ-S738FBNC fit Part No. 1-756-702-11, 1-756-702-1

PREMIUM QUALITY BATTERY - Premium cell,True capacity,Grade A+ rated battery cells,Build-in with IC chip to prevent the battery from over-charging, over-discharging short-circuiting and over-heating, with UL, FCC, CE, ROHS certification. which can protect both users and devices. COMPATIBLE MODELS -Sony NWZ-820, NWZ-A720, NWZ-A726, NWZ-A728, NWZ-A729BLK, NWZ-A826, NWZ-A828, NWZ-A829, NWZ-S738, NWZ-S738F, NWZ-S738FBNC COMPATIBLE BATTERY PART NO. - 1-756-702-11, 1-756-702-12, 8315A32402, 8917A44167, LIS1374HNPA EASY INSTALLATION-Please watch the installation videos on YouTube for a battery replacement guide carefully. Keep in mind that its full performance and lifetime can only be achieved after 3 to 6 full charge and discharge cycles. WARRANTY & SERVICE-12 months warranty,15 days return and exchange,If you have any questions, please contact our customer service by email