Interesting, never heard of Electrathon before, but looking at it, it's quite similar to Greenpower here in the UK. They have very similar design and rules as we have. Only thing is that they can have three wheelers, so much better than four wheels for efficiency, can only wish that we had that rule
Going to spend some time researching into some of their cars.
We have two batteries that are supplied by Greenpower and they are 36Ah batteries, (195L 130W 165H)