... High Capacity 3.2V 1500mAh 18650 Rechargeable LiFePO4 Battery, LiFePO4 Battery Pack for Power Tool, RC Toy, Electric ... Up to 2000 cycle life, would be over 8 times life of Lead Acid and 3 times ... extremely hot weather will not effect its performance 8. Flexible Form Factor, Small in size and ... charge within half hour10. Perfect for building up battery pack for medical equipment Back-up or EPS Emergency ...