Second Life: This is how used Audi batteries get a second life

Almost everyone knows the rattling tuk-tuks, the three-wheeler rickshaws in many Indian cities. Millions of mini vans, mostly only protected from the monsoon and the sun by a light hood, dominate the street scene there. Most still drive two-stroke engines and thus contribute a good deal to air pollution.
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This corresponds to the declared intention of the Indian government: the traffic in the huge country should gradually become electric in the coming decades. The German-Indian start-up Nunam wants to make a small contribution to this in the billionaire state by initially bringing three electric rickshaws to India’s streets.

The first donor batteries for the e-rickshaws come from Audi e-tron models that are part of the manufacturer’s test fleet.
“The old batteries are still extremely powerful,” agrees Nunam co-founder Prodip Chatterjee. “When used in the right applications, Second Life batteries can have a huge impact, helping people in challenging life situations to generate income and economic independence – in a sustainable way.”
Cooperation between Neckarsulm and Bangalore

Three prototypes are already being tested. In 2023 they are to be made available to a non-profit organization in India.
The eco-efficiency of an e-rickshaw is optimal, explains the Nunam founder. While the battery has a high energy density and the weight of the vehicle is comparatively low, the power of the electric motor does not have to be particularly high, because the distances to be covered in Indian cities are usually just as manageable as the speed achieved. The three-wheelers that have already been powered by electricity are mostly powered by lead-acid batteries, which only have a short lifespan.

The German-Indian start-up Nunam is putting three electric rickshaws on India’s streets. They were redesigned by Audi trainees.
After the second life, the third battery life could come

The project aims to find out how modules from high-voltage batteries can be reused after they have been used in the car.