2017-01-14 Battery Box Size

• Two box design - 18 modules per box (36 modules total)

• Control boards (i.e Plutus, Chaos) will most likely be contained in one of the boxes
• Approximate Dimensions:
  • 8 x 3 modules (extra 2 modules worth of space allocate for boards, wiring, etc.)
  • 24" x 18" x 5" (L x W x H)

*insert image of 3D model of battery box

• Need to determine electrical connection between modules (module must be easily removed/replaced)
• Initial proposal:
  • Copper strips along string of cells
    • Dimpled to maintained contact with cells
    • Low expansion foam and/or plastic bolts to hold strips in place
  • Copper bus bars to i) connect the strips ii) connect modules
    • Multiple bus bars to improve cross-sectional area
    • Need reliable contact along length of bus bars for both connection between strips and inter-module connections
    • Possibly used flextures, springs to pre-load