The Hyperion G5 Radio & Receiver packs are an excellent alternative for your Nitro model aircrafts and radios operating on 8xAA cells. Now enjoy extended flight time on a single charge and say goodbye to old technology, adapt environment friendly LifePO4 cells! If you are the one that hates or forgets to charge your Nicd/Nimh batteries, the Hyperion G5 Receiver Pack with LifePO4 technology has come to your rescue!