The main focus of the DUT12 is four wheel drive, with this concept we aim to improve our efficiency. This improvement makes it possible to downsize the accumulator and thereby reduce the weight significantly. The improved efficiency will be reached by reusing the energy which else would be lost by braking. The DUT12 will do this by using the motors as generators and store the energy in the accumulator. This concept needed a different type of cell which led us to Melasta.

In general, battery cells are only optimized in providing energy, not in absorbing energy. They could limit the amount of energy which can be stored. This challenged us to look for a total different type of cell and led us to an elaborate search for the ideal cell for a four wheel driven car.

After considering different brands and cell chemistries, some candidates were selected and put to the test. These tests were done at the premises of KEMA. The high-tech testing equipment was specialised in testing battery cells in such a way that both driving and regenerative braking could be simulated on the cell.  With the advice and support of one of the engineers of KEMA, a testing protocol was made which was based on different scenarios of the endurance event.

When the results came in, the choice was obvious, the small Melasta 4000mAh 20C cell endured all the tests and appeared more promising than different bigger and heavier cells. A test where this cell was thermally isolated was also conducted and the cell only reached a comfortable 40 degrees Celsius.

288 of these 94 grams weighing cells will ensure us of driving a fast and efficient endurance!

With great thanks to KEMA for supporting us with our tests and providing all the test facilities.  Also many thanks to Melasta for their support and of course their high quality cells!