Run this spacer in your eBuggy battery tray to shift the battery back towards the CG for a more balanced weight bias (50-50). The result is more controllable steering, and better rear grip on acceleration leaving the turns. With the massive weight of 4S batterys, many ebuggy manufacturers shift the weight extremely far forward which can make the buggy turn-in too hard, and get loose on acceleration. Shifting the weight of the battery back 10mm cures most of these issues with no sacrifice in lap times.
If you've ever tried making a foam spacer, you'll know they get filthy dirty, and require tape/glue to keep in place. All in all, it was a bad idea...and after 1 trip to the track we knew this idea was awesome. The spacer fastens to your battery tray, never shifts, falls out, or compresses so that your pack is 100% secure in crashes. The rear stop is not really needed since we only crash in FWD mode. Make sure and run velcro straps and adhesive foam under the pack to keep it from sliding around.
Some modification required. Use a dremel or side-cuts to remove the back wall of your ebuggy battery tray. 2.5mm or 3/32" Drill needed for pilot holes.
10mm Battery Spacer features: