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Battery boxes

  Rear saddle boxes secured to steel chassis

A major design challenge for any electric vehicle involves the location and construction of the battery boxes which hold the cell pack.

Lithium batteries have much lower energy density than gasoline, and thus consume a much larger volume than a typical gas tank.

The electric 356 carries about 425 pounds of cells, distributed to achieve a 50/50 balance front to rear.

Careful consideration must be given to strength, vibration, waterproofing, and maintenance access. The rear cells are placed into two “saddle bag” boxes on either side of the electric motor.


The rear L-shaped saddle box design. molded in fiberglass, optimizes the number of cells.


  Ten yellow lithium battery cells packed into each rear box and connected in series