>Additionally, if there was capacity why not use it to charge lithium batteries? Cost, weight, and refueling/recharge. Lithium batteries are expensive, heavy,

>Additionally, if there was capacity why not use it to charge lithium batteries? Cost, weight, and refueling/recharge. Lithium batteries are expensive, heavy, and have a limited lifespan. I think batteries will win out, but it is not a certainty. Toyota seems to think Fuel cells will win.