Best Overall#1 · Slime
Slime Cordless Pro Power Tire Inflator — Part #40086
One of the strongest combinations of inflation speed, portability, hose reach, automatic pressure control and emergency power redundancy.
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Why It Ranked Here
Car and Driver measured the Slime as the third-fastest unit in its 2026 comparison, behind Milwaukee and VIAIR, while praising its compact design and unusually long 15-foot extension hose — and ultimately selected it as Best Overall. Slime lists the 40086 with an internal lithium-ion battery, 12V backup power, automatic Inflate-Right shutoff, a digital display and suitability for larger truck, van and SUV tires. It may not be the fastest inflator in the ranking, but the ability to run from either its own battery or a vehicle's 12V supply makes it exceptionally practical as permanent roadside equipment.
What We Like
- Strong independently measured inflation performance
- Rechargeable internal battery
- 12V backup power
- 15-foot extension hose
- Automatic Inflate-Right shutoff
- Digital display
- Clamp-style tire connection
- Strong balance of capability and portability
What Could Be Better
- Battery endurance is not class-leading
- 99 PSI display range is lower than several competitors
- Larger than handheld pocket-style inflators
- Not the fastest compressor in the ranking
Best For
Drivers who want one inflator to live in the vehicle permanently



