r/FSAE•
ThePackman0702

First Year FSAE EV HV Disconnect Placement & Junction Box Questions

First-year team working on our FSAE Electric car. We're stuck on the high voltage disconnect and junction box design.

  • Battery pack is LOW - height constraint makes traditional HVD placement difficult

Specific questions:

  1. What techniques are you using for the actual disconnect/reconnect mechanism? Just a connector pull, or something else?
  2. Do you send power back and forth? (Charger to pack vs pack to controller) - how do you handle that with one disconnect point?
  3. Battery pack height constraint have you dealt with packaging issues that forced you to relocate the HVD? Any workarounds?

Posted Mar 5, 2026, 2:35 AM UTC

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