This Trunk-Friendly Tire Inflator Makes Roadside Top-Ups Way Easier

By Omair Khaliq Sultan Published November 21, 2025

This post is brought to you in paid partnership with NEXPOW.

A flat or low tire always seems to show up at the worst possible time. A compact compressor you can keep in the trunk solves most of that stress in a couple of minutes. The NEXPOW portable tire inflator and air compressor is now $49.99 at Walmart, down from $148.99, so you save $99 on a tool that can bail you out at home, on road trips, or in a parking lot.

This unit is a cordless air compressor built for car tires, but it also works for motorcycles, bikes, and sports gear. It has a built-in rechargeable battery, so you can top up a tire without digging for outlets or stretching a cable across the driveway. When you do need backup, it also includes a 12V DC adapter for your car.

Key features include:

You set your target pressure, connect the hose, and let it run. The digital display lets you keep an eye on the progress without guessing.

The big advantage here is convenience. Instead of finding a gas station with a working air pump, digging for quarters, and rushing against a timer, you can just plug this into the tire and handle it on your schedule. For anyone who drives a lot, has kids in sports, or likes to keep bike tires dialed in, it quickly becomes a “nice to have” that turns into a “how did I not have this earlier?”

The cordless design and rechargeable battery mean you can also throw it in a trunk or gear bin and forget about it until you need it. The digital gauge is a big step up from the old pen-style gauges, and having everything in one compact unit keeps the whole process simple.

At $49.99, with $99 in savings off the previous price, it hits a good balance: expensive enough to be reliable, but cheap enough to justify as a just-in-case upgrade for your car.

If you want to stop relying on sketchy gas station pumps and keep your tires in shape on your own terms, this NEXPOW portable tire inflator and air compressor is a smart grab at $49.99. With a rechargeable battery, 12V backup, up to 160 PSI, and multiple nozzles, it covers most everyday inflation jobs without much fuss.