Xtreme Racing Project 4X Pro flex battery hold down kit
Following the release of the flex battery hold down kit for the Xray T4, Xtreme Racing now also have a variant for the Serpent Project 4X Pro available. The set replaces the standard battery mounting system and does away with the need to use tape to hold down the battery pack in favour of a quick release system that only lightly tabs the battery pack, resulting in quicker battery swaps and less influence in chassis tweak. The set includes two battery hold downs, two LiPo battery supports and 6 shooter thumb fasteners along all needed mounting hardware.
Source: Xtreme Racing [xtremeracing.com]