This will fit a fungineer battery box that included the 20s2p battery bought together. When I opened my battery box to check the BMS screws and loctite them I noticed the BMS was dusty after only 80 miles of riding. The provided red gasket is very thin. I tried adding a 1 mm thick tpu gasket but then the lid and box were too thick for the rails. I siliconed this gasket to the inner part of the battery box lid and I think it will help but have no intention of opening it back up and checking anytime soon. It can't hurt. Printed in TPU.
The author marked this model as their own original creation.