The Traxxas 8527 jumper plug allows a dual-battery 24.2V ESC to run off a single 14.8V battery. use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Traxxas vehicles; consult your user's manual for exact parts listings.