In our collaboration on the Spark Energy initiative, we aimed to create an affordable, scalable, and modular battery system for the developing world. By prioritizing cost-effectiveness without compromising on functionality, we developed a versatile battery system capable of incremental power scaling by connecting multiple units. The Spark Battery emerges as a unique, all-encompassing solution, catering to diverse needs from household lighting to small agricultural machinery, ensuring it delivers both accessibility and efficiency where it’s needed most.