At first we had to prepare a nice rack to load up the battery, As you may see on the picture its made out of EuroPalette that you can get for free or pay 20 $ a piece depend where you ask.

Unfortunatelly, we reallised later that the battery where bonded by a thick copper plate with two hole and we had to screw them between the battery terminal. Or we had around a hundred piece that allow us to bond them in lenght but only four that bound them laterally so we had to rework the battery layout