... Cylinder 3.2V 1700mAh 22650 Rechargeable LiFePO4 Battery Pack for Electric Bike, Power Tools, EV Battery Cylindrical 3.2V 26650 High ... within half hour10. Perfect for building up battery pack for medical equipment Back-up or EPS Emergency Power, Good performance at ... Medical devices5. RC car, boat, aircraft toy6. Solar, wind power energy storage devices 7. Digital camera, laptop/notebook, GPS devices ...