Yet another foil assist system - bus bar for battery


Hello,
i finally decided to build a foil assist system. I am using

  • Flipsky motor 6384 with 3D printed adapter (the blue part is made of TPU)
  • Flipsky 2 blade folding prop plus printed blades that I could find on thingiverse
  • Flydragon Controller 150 A (Controller in box, external air cooler)
  • Flipsky Remote VX3Pro
  • Molicel p50b 12s/4p built from 2 6 s batteries; I can charge those with my charger for RC models
  • No BMS (integrated in charger)
    I wanted to use a copper bus for the leads and would like to ask you guys if I should isolate the bus bar from the Nickel if I want to lay the bus bar over the batteries as shown in the picture