Prime Day Deal: The Compact Tire Inflator Every Driver Should Keep in the Car Is 33% Off
A low tire never picks a convenient moment, which is why the most useful thing you can keep in your car is something small enough to forget about until you need it. The ETENWOLF Storm S1 is exactly that: a compact, cordless tire inflator that tucks into a glovebox or trunk and tops off a car, motorcycle, bike, or even a basketball without hunting for a gas-station air pump. It’s a smart pick for daily drivers, road-trippers, and anyone building out an emergency car kit — and for Prime Day, it’s 33% off.
The deal
For Prime Day — June 23–26, 2026 — the ETENWOLF Storm S1 Portable Tire Inflator is 33% off, down to $39.99 (from $59.99). It’s a Prime Day deal, so a Prime membership is required, and the price ends when the event closes on June 26 (or earlier if it sells out).
What it is
The Storm S1 is a cordless, handheld tire inflator about the size of a water bottle, so it’s easy to keep in the car at all times. According to ETENWOLF, it reaches up to 160 PSI max and offers preset modes for cars, bikes, motorcycles, and sports balls, with a bright digital readout in PSI, BAR, or KPA. Set your target pressure and the auto-stop feature shuts the pump off once it’s reached, so you don’t have to babysit the gauge or risk overinflating. A built-in LED light helps for roadside fixes after dark, and it ships with a few nozzle adapters for different valve types.
How to use it
Charge it up, then keep it in the glovebox or trunk so it’s ready when you need it. Pick the preset mode for what you’re inflating — car, bike, motorcycle, or ball — screw on the matching nozzle, and set your target pressure with the +/- buttons. Press start and the pump runs until it hits the number, then stops on its own. For a dark roadside or garage, switch on the LED light. As a small cordless unit, it’s built for topping off and emergencies rather than continuous heavy-duty use, so recheck pressure with the on-screen gauge as it works.
Who it’s for
It’s a natural fit for daily drivers, motorcycle and bike riders, road-trippers, and anyone assembling an emergency car kit — basically anyone who wants a grab-and-go way to handle a low tire without finding an air pump. If you regularly air up large truck or RV tires, or want a shop-grade compressor for heavy daily use, a corded or higher-capacity model is the better tool; the Storm S1 is purpose-built to be small, cordless, and always within reach.