Upgrade 7.4V 4100mAh Replacement Lipo Battery Part Compatible with Holy Stone HS100 SJRC S70W RC Dorne Quadcoptereature:Designed For Holy Stone HS100, SJRc S70WFly more 8 minutes than original 2500mah batteryHigh power and high capacityHigh quality lipo rechargeable batteryStable output current, pro..