Answered: Joystick Battery Mod?

I recently went to a tournament in Granada Hills and I saw a team with a modded battery in their joystick. I will attach a picture.

The had two aluminum blocks in the top battery ports and the two blocks had a wire attached to each leading to a connecter like on the end of the Power Expander. Connected to that they had these batteries:

I have a few questions about this.

  1. Is it competition legal?
  2. If my team were to do this would we be able to make our own Joystick battery “door” in a 3D Printer?
  3. Would the Joystick run properly on that size battery rather then the normal 6 AAAs?



  1. I’m not 100% sure, for an official answer post your question here: VRC Gateway Official Rules Q&A

  2. Technically yes, but I don’t really think its necessary.

  3. Yup, the Joystick should run just fine with the VEX 9.6V Battery.


Ok thanks! I wasn’t sure what section to put it in so I put it here. I will move it right now.