After only seeing one video of someone actually trying to do this, I decided to charge my Tesla with the EcoFlow Delta 1300 battery generator, which takes no gas, it's purely Lithium Ion, and this proves it is very, very poweful! See more details from their website, but I'm not a YouTube influencer so don't expect a paid and polished review here. It's really for backup purposes and will only give you a few to several miles or something like that, but hey, better than being possibly stranded (that shouldn't be an issue with so many Superchargers around, but still, this is a cool thing and you don't have to use those Sparkcharge guys or whatever).