I'm going to join the ViAir crowd.
This is my choice.
Why? Simple. It runs on your TV or RV battery. It isn't just "rated" for 120 PSI, it can actually produce that. The pump is metal, not plastic. And here's the kicker. It can draw up to 23 AMPS when pumping. The pump actually consumes an appropriate level of power to produce the pressures it's designed for.
Some cigarette lighter or Lithium Ion battery simply cannot deliver that kind of power. Most of the battery and cigarette lighter powered pumps employ magical thinking when citing their specs.
Case in point. A camping neighbor had two leaky tires. One on his rig and one on his TV. His half-ton pickup only needed about 35 PSI in the passenger front tire. He had a brand name battery powered compressor/jump starter. It gave up at about 22 PSI. It kept running and trying, but his tire pressure stopped a 22 PSI. I brought over my ViAir, and it took about 90 seconds to finish the job. As for the RV tires, fuggedaboudit. Mine run 65 PSI. So did his. His battery powered joke stopped at, you guessed it, 22 PSI. That's it, that's all.
I bought my ViAir in 2015...yes, it's 10 years old. I've loaned it far more than I've used it, but it has saved me several times. It's quite small, and it lives in its own bag in a corner of my bed-mounted tool box/trunk.
But what if the cable's not long enough you ask? Your jumper cables make a great extension cord. Just clamp one alligator clip to the insulation on the other cable lead...as you might when setting up a jump... connect to your battery, then clip the leads of the ViAir to the clamps on the end of the jumper. Instant heavy gauge lead cord. Don't have jumpers? Shame on you.
These are the real deal. Honest to God air compressors. Mine is on the cheap side for ViAir, but it's all I need and has served me well for a decade. Read the specs on mine. Note that it has only a 15% duty cycle...even considering its quality. Now imagine some plastic pump trying to reach 100 PSI. Ain't happenin'. Or if it does, it will only happen a couple of times before total meltdown.
PS. At home I have a 30 gallon, 175 PSI modest homeowner's compressor I use to winterize with air. A moderately decent pump combined with the 30 gallon tank make for high CFM at 40 to 50 PSI continuously for blowing out the lines. But it ain't portable by any stretch. I used to have a pancake, and I could winterize my popup with it if I was VERY patient. The ViAir is super small and portable. The 30 gallon job is a real workhorse for the garage.