This ESC is capable of 2S LiPo to a maximum of 6S LiPo, and is now waterproof. This upgrade allows users to run their vehicles through the morning dew, across the soggy snow or just about anywhere else you d be interested in running a 1/8th scale RC buggy or truck. We ve updated the case, allowing users easy access to fan changes, if necessary. Additionally, we ve added solder posts to permit users to change battery wire length and direction as needed for an even more custom install. Industry Leading Software Functions allow access to the full programming suite of adjustable settings that tune and tweak your vehicle to your preferences, resulting in an incredible RC driving experience. Castle Link adjustable settings include: Throttle/Braking curve Drag brake Auto LiPo cutoff Punch Control