Fuel Cells

[Jernej]

Hello, first time posting here. In my unmodded ksp everything works fine, except the fuel cells. I tried to attach them to anything  possible but when I launch the vehicle and start the fuel cell(s) nothing happens. Is there something that I'm missing? help

[jimmymcgoochie]

Do your fuel cells have fuel? If not then they won’t work. Check that you a) have liquid fuel and oxidiser for them to run and b) that the fuel can flow to the fuel cells, without something like a decoupler in the way.

Are your batteries already charged up? If so then the fuel cells won’t run- they don’t operate when the battery capacity is at 95% or up