From the linked article [1]: > Transforming cells, via modules, into the whole battery pack typically adds 30% cost per kWh on top of the cost of the cells alo

From the linked article [1]: > Transforming cells, via modules, into the whole battery pack typically adds 30% cost per kWh on top of the cost of the cells alone. And to get a bit more info on what a module is [2]: > A battery module is more than just a mechanical frame that holds the cells - it also includes bus bars to connect the cells electrically, a cooling interface and a sensing harness, which sends information about the state of each cell to the battery management system. [1]: https://cleantechnica.com/2018/06/09/100-kwh-tesla-battery-cells-this-year-100-kwh-tesla-battery-packs-in-2020/ https://cleantechnica.com/2018/06/09/100-kwh-tesla-battery-c... [2]: https://evannex.com/blogs/news/learn-more-about-tesla-battery-cells-modules-and-packs https://evannex.com/blogs/news/learn-more-about-tesla-batter...