Probably the best option. If it's last 20 years, it can probably do another 20. And anything you find currently on the market will struggle to beat that.
Somebody can be both. And whatever purity test you think this post failed isn't a helpful one.
Related
https://arstechnica.com/gadgets/2024/11/disposable-vapes-from-a-music-festival-can-power-a-beefy-e-bike-20-miles/