Toyota has unveiled a groundbreaking advancement in fuel cell technology by introducing portable hydrogen cartridges that offer a convenient and versatile solution for hydrogen-powered applications. These compact cartridges, small enough to be carried like a backpack, could potentially power various devices, from stoves to cars, making hydrogen fuel more accessible and user-friendly. This development comes in response to the challenges faced by current hydrogen-powered car owners, including a crumbling refueling infrastructure and inconvenient refueling processes. Toyota's innovation aims to revolutionize the hydrogen fuel industry by providing a practical and efficient way to replace or refill hydrogen tanks easily. While the technology shows great promise, mass production and implementation of these portable tanks are still in progress. Toyota is seeking partnerships with startups and other collaborators to further develop and eventually commercialize these battery-like cartridges. The company showcased a hydrogen-powered cooker developed with Rinnai Corporation as the first application of this concept. Although hydrogen-powered cars equipped with replaceable fuel cartridges may not hit the roads immediately, Toyota's breakthrough paves the way for a more sustainable and accessible future for hydrogen fuel technology.