The ProTek R/C 2S 150C Stock Spec 5600mAh Shorty LiPo Battery is a great choice for anyone looking for a reliable, low IR shorty-style pack. Its increased capacity and advanced cell design provide consistent power delivery, cooler operating temperatures, and improved efficiency — keeping you in the fight all the way to the last lap. With lower internal resistance and extended cycle life, this pack delivers both performance and durability.