These new hard case Lipo packs from Team Orion have a shape that fits the battery openings in the E-Revo and E-Revo VXL like a glove and they come with Traxxas connectors which makes them a plug and play deal. They can also be used in applications where battery size doesn’t matter such as rock crawlers. The hard case features a carbon fiber finish and Team Orion provides you with three different skins to allow you to personalize your packs. The E-Revo pack has a capacity of 4,700mAh, a discharge rate of 45C and a voltage of 11.1. The E-Revo VXL pack has a capacity of1,100mAh, a discharge rate of 35C and just like the larger pack a voltage of 11.1.