I saw this little thing approx the size of a deck of cards that claimed to be a 150 psi battery operated tire pump / air compressor. I'd never heard of such a thing.

Do they work? I'd love to have one handy.

Here's one version: https://www.banggood.com/Baseu...ouse=CN&rmmds=search

Check out Project Farm’s video...

https://youtu.be/TkxpuzYggd4

Pretty interesting.
One of these & one of those micro jump boxes would be great for car that are space limited.

Curious how long the inflation time is for a car tire, with that tiny thing.

Also says 1.5x car tires on a charge, so not bad for an emergency fill, but not for maintaining pressures.

I carry 12v versions in our truck and car. They're a bit noisy, but will fill a deflated tire in about 15 minutes. That's better than waiting for a tow truck for 2+ hours.