Aren't you forgetting the weight of the high pressure tanks and fuel cell and heat recovery turbine in your energy density for hydrogen? A battery has power le

Aren't you forgetting the weight of the high pressure tanks and fuel cell and heat recovery turbine in your energy density for hydrogen? A battery has power leads coming off of it, hydrogen doesn't, should I quote electrons wh/kg instead? I did make a mistake though I believe the in development hydrogen fuel cell I got the number from was only 1800 wh/kg, my bad. If batteries can reach 2000 wh/kg then a 4 megawatt-hour battery would be around 5000 lbs and give 2000 miles range, it would be on par with current diesel drive trains.