120v to 12v 50amp Air Compressor

I just utilized a 10 year old Sears gift card to pick up the venerable Puma PD1006 12v 3/4HP air compressor. There have been a few situations where I've wanted air or air tools while out in the backcountry, and this seemed like a cheap way of running them.  Also nice when I need to air down going up to sandy beachs and deserts surrounding Lake Powell. 

Anyway, I'd like to occasionally run this off house power - 120v. 

The Compressor requires a max amperage of 50 amps on 12v. 

Is it just a matter of finding some sort of 12v transformer that will push 50amps? 

Not a transformer, or at least not by itself.  Look for a 12V 50 (or preferably higher) amp power supply on ebay.  Or two or three 25 amp ones.  A battery in the middle would be nice too.

A transformer would give you 12 volts AC, to get 12 volts DC you then need to rectify it (and that's basically what a linear power supply is).  Alternately, you could use a spare 12V battery and use a charger to charge it up.  Wouldn't let you run it at full duty cycle, but that's probably OK.

That said, unless you have the parts for this lying around, it's probably cheaper to just buy a 120V pancake compressor.

I bought the Puma compressor to keep in my trailer for use at the track, it's nice.

codrus said:

Alternately, you could use a spare 12V battery and use a charger to charge it up.  Wouldn't let you run it at full duty cycle, but that's probably OK

This would be the simplest way to go.

12v 50a power supply, $37 with free shipping:

https://www.ebay.com/itm/Universal-12V-3-5-10-15-20-25-30-50A-Switching-Power-Supply-Driver-for-LED-Strip/122480488771?hash=item1c8467f143:m:mbHRn4DA1ANr7tBMGw1d2iA

choose 50a / 600w on the drop down. No experience with that particular seller or power supply.

You'll need to enclose it or somehow protect the terminal ends so you don't have 120vac exposed.

Well, I don't have any spare 12v batteries laying around, although I do have a trickle-charger. Which unfortunately doesn't put out enough amps on it's own.

One thing I do have laying around is an old computer power supply, but it only puts out 15A at 12v, so no dice there. 

The power supply listed above is probably my cheapest option. I do have an old air compressor sitting around that I was going to scrap as it doesn't run. I suspect either the capacitors are dead, or something else. I may continue investigating that old compressor.