... LiFePO4 Battery, LiFePO4 Battery Pack for Power Tool, RC Toy, Electric Vehicle 3.2V 18650 Cylindrical LiFePO4 Rechargeable ... life, would be over 8 times life of Lead Acid and 3 times of NIMH, 2 times ... size and light in weight 1/3 weight of Lead Acid and 65% weight of NIMH.9. No ... system. 3. Military equipment: IR telescope4. Medical devices5. RC car, boat, aircraft toy6. Solar, wind power energy storage ...