... Capacity 3.2V 1500mAh 18650 Rechargeable LiFePO4 Battery, LiFePO4 Battery Pack for Power Tool, RC Toy, Electric Vehicle 3.2V ... fast charge within half hour10. Perfect for building up battery pack for medical equipment Back-up or EPS Emergency Power, ... equipment: IR telescope4. Medical devices5. RC car, boat, aircraft toy6. Solar, wind power energy storage devices 7. Digital camera, laptop/notebook ...