Comment by pandaman

EV is indeed easy. Safe and reliable EV is hard. Vehicle environment is hostile to electric components, where they are exposed to vibration, dirt, and moisture. Even if you get "safe" chemistry in the battery cells of an Alibaba e-bike, it only means the cells themselves are less likely to explode in a chemical fire. It still has enough current to melt metall and set off a regular fire. And in the best case it will just stop working and good luck repairing some random components, which might have been from a short production run and there are no spares in the existence.