How much fuel does a Falcon 9 rocket used by SpaceX use, for a trip to the International Space Station?

Any possibility of Teslas batteries being used in the future?


closed as unclear what you're asking by Nathan Tuggy, Brian Tompsett - 汤莱恩, ForgeMonkey, duzzy, Hohmannfan Aug 28 '16 at 16:59

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • 3
    $\begingroup$ What do batteries have to do with rocket fuel? This seems to either be two unrelated questions (in which case you should ask the second one separately) or a really confusing single question. $\endgroup$ – Nathan Tuggy Aug 26 '16 at 20:34
  • 1
    $\begingroup$ @NathanTuggy "rocket fuel $\rightarrow$ batteries" is a "beginner" question about technology, if cars can change from hydrocarbon to batteries, can rockets? You are right, that could be split off as a separate question, but it's not so horrible. Since there are one or two suitable answers below... $\endgroup$ – uhoh Aug 28 '16 at 5:08

Elon Musk has famously said that all transportation will eventually transition to electric EXCEPT rockets.

He included airplanes (and with the release of his Master Plan V2, trucks, buses, become more included) in that, claiming to have an idea for an electric airplane.

Mass of propellant on first stage, fuel + oxidizer is on the order of 395,700kg and it generates 1.5 million lbs of thrust so replacing that with batteries is unlikely to ever happen.


The only electric rocket engines we use today are ion engines. Those still need a propellant (usually Xenon) and their thrust/weight ratio is far below 1 so we can't use those to launch a rocket from Earth.


Not the answer you're looking for? Browse other questions tagged or ask your own question.