ULTIMATE POWER! ULTIMATE PERFORMANCE! Now ROAR approved, LiHV batteries provide an extra edge over standard LiPo chemistry, by allowing you to charge them to 4.35 volts per cell, providing you with the ultimate voltage, capacity, and flatter discharge curve! This extra voltage gives you blistering performance on the track! Our LiHV batteries also feature proprietary Silicon Graphene technology, which stabilizes the cells and increases their cycle life & efficiency. For the Ultimate Power and Performance, Fantom Racing Pro HV Silicon Graphene LiHV’s set the standard for high-performance HV technology!