Battery expansion kit (allows for installation of taller multi-cell battery packs) The battery expansion kit from Traxxas allows the installation of larger format battery packs into the Velineon powered Rustler VXL and Stampede VXL. The package includes hardware to raise the electronic speed control mount and battery posts allowing clearance for taller battery packs. Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas RTR 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.
This is the 3725X Battery Expansion Kit Rust/Band/Stmpd from Traxxas. Traxxas has grown to become the number-1 selling name in RTR nitro and electric models for the last 4 years running. No one has done more than Traxxas to advance the RTR category with innovative thinking and fun designs that make it easy for anyone to get started in the great R/C hobby. Traxxas, truely the fastest name in Radio Control.