Li-Po HV Car 3S 11.4V Advanced 6500mAh 100C with EC5Advanced 4. 35V HV Series, New generation of RC Smart batteries. The Advanced series design concept is based on being a more convenient, user friendly and safety oriented series of batteries. We produce the high quality LiHv cells, hard case, internal circuitry, power indicator lights and other smart features. The first concept of 4. 35V high voltage allows higher energy density and longer battery life. Each cell with 3. 8V nominal voltage. Features: