Big League Battery is a leading Radio Control Lithium Polymer (LiPo) and Sealed Lead Acid (SLA) battery and battery pack manufacturer and distributor. We stock various batteries and battery packs widely used for radio control airplanes, helicopters, boats, cars and other toys. Big League Battery LiPo Battery Packs have been well accepted by customers for their outstanding performance in safety, flexible design, low self discharge and excellent charging performance. It is also environmental friendly. Our batteries and battery packs are long shelf-life units perfect for your high-tech use. We use high quality cells that are packed with power and are designed to withstand the rigorous charge and discharge profiles that are typical of an RC radio control enthusiast.