Each FlightPower EVO 20 pack is manufactured in Malaysia exclusively from the worlds highest performance 20-30C type cells developed by Enerland Co. Ltd. of Korea. The FlightPower EVO 20 manufacturing process results in packs that are optimized for performance RC applications by extremely tight matching for Voltage and IR, very low-resistance joints and 100% quality control at the cell level from arrival to dispatch as Quality-Assured completed pack. Each FlightPower EVO 20 product is therefore the highest quality and performance implementation of the highest performance cells available.