What's the reason for a portable lamp without a battery?
Got it already! We are surrounded by battery-powered devices that can be used to power the SI! thanks to a simple USB-C cable. This allows us to reuse existing batteries instead of having to purchase new ones.
Environmental impact. Battery production has a significant environmental impact, which includes mineral extraction, energy use, and greenhouse gas emissions.
Disposal difficulty. Used batteries must be responsibly disposed of, which can be difficult or expensive depending on the type of battery and local regulations.
Cost savings. Purchasing new batteries represents an additional cost.
Longevity. Batteries have a limited lifespan, and not having one onboard means that SI! will not age with it.