Key Features- Inherently safe chemistry will not explode or catch fire- Twice the cycle life of competitive Li-poly batteries- 50% more power (up to 60C burst) than competitive Li-poly batteries- Fast charge capable - reach 100% state-of-charge in 15 minutes using the - Hypersonic ChargeSafeÖ balancing fast charge system.- Balancing connector (compatible only with Sonic Charge (AQR400088))OverviewHypersonicÖ is a high power density battery pack safely providing up to 30C continuous output and 60C burst rates. Unlike traditional lithium-ion, HypersonicÖ packs have exceptional safety characteristics with no risk of spontaneous combustion. All component cells are UL-1642 compliant. Designed for exceptional power output, durability, and safe operation, HypersonicÖ Lithium Ion is the next generation battery for the R/C market. Using a unique, patented, revolutionary lithium-ion chemistry developed at A123Systems, HypersonicÖ packs provide high performance and abuse-tolerance unmatched by any other battery chemistry. With its ultra low-impedance design and high power capability, HypersonicÖ offers high performance and long cycle life characteristics in a robust, safe package, able to deliver up to 60C burst rates. HypersonicÖ packs can also be connected together to create custom configurations for almost any electric propulsion application. Experience a new level of battery performance in R/C vehicles with A123Systems HypersonicÖ Lithium Ion.