cross-posted from: https://lemmy.ca/post/31642688

for capacity: https://insideevs.com/news/738124/toyota-portable-hydrogen-cartridge-fcev/#%3A~%3Atext=Gallery%3A+Toyota+Portable+Hydrogen+Cartridges&text=Toyota+didn't+say+how%2Cof+161+grams+of+hydrogen.

161grams = 5kwh+ of heat energy or close to 3kwh of electric only energy in a fuel cell.

For drones, ebikes, powerstations, this would be higher electric weight density than batteries. And solves ebike/powerstation charging on the go problem.