... 3.2V 1500mAh 18650 Rechargeable LiFePO4 Battery, LiFePO4 Battery Pack for Power Tool, RC Toy, Electric Vehicle 3.2V 18650 Cylindrical ... 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 ...