Portable Tire Inflators
every brand-name tire inflator we track, one row each. sort by weight to find one that lives in the glovebox, or filter by power source to match the tool batteries you already own. tool-battery weights are bare tool, so add a pound or two for the pack.
 Airmoto Cordless Tire Inflator (BP198) | 5.2 Quiet and compact for bikes and ATVs, but Outdoor Life saw it build no pressure in a truck tire and owners flag short battery life. | Built-in battery | 120 PSI | 1.3 lb | ||
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 AstroAI 12V Portable Air Compressor Tire Inflator (CZK-3674) | 5.8 Cheap, compact 12V pump with a handy preset, undercut by frequent reports of units dying within months. | 12V car outlet | 100 PSI Let it cool after 15 min of continuous running. | 1.7 lb AstroAI publishes no weight; about 760 g (1.7 lb) per retailer listings. | ||
 AstroAI L7S Cordless Tire Inflator | 6.2 Tiny and doubles as a power bank, but owners split on battery life and some report the auto shutoff getting flaky. | Built-in battery | 150 PSI AstroAI says it is not for heavy-duty tires. | 1 lb | ||
 BLACK+DECKER 20V MAX Multi-Purpose Inflator BDINF20C (Tool Only) | 6.9 Triple power on a budget platform, but Car and Driver needed over nine minutes to reach 45 psi. | Tool battery + 12V + 120V | 160 PSI | 5.4 lb Tool only, no battery. | High-pressure mode only. | |
 CRAFTSMAN V20 Cordless Inflator CMCE520B (Tool Only) | 8.0 Triple power and a fill within 1 psi of the truck's TPMS in Bob Vila's test; the sun-washed screen and bulk hold it back. | Tool battery + 12V + 120V | 160 PSI | 5.85 lb Tool only, no battery. | ||
 DEWALT 20V MAX Corded/Cordless Air Inflator DCC020IB (Tool Only) | 8.9 Battery, 12V or wall power plus an easy gauge make it the most versatile pump here; Bob Vila's best overall, though it walks when running with a big battery. | Tool battery + 12V + 120V 12V car cord included; the 120V AC adapter is sold separately. | 160 PSI | 6.39 lb Tool only, no battery. | High-pressure mode only; the high-volume mode for inflatables has none. | |
 ETENWOLF Vortex S6 Cordless Tire Inflator | 8.2 The rare cordless pump with a battery big enough for truck tires and owner-verified gauge accuracy; the 6 lb heft is the price. | Built-in battery | 160 PSI | 6 lb Dual-cylinder, 100% duty-cycle unit with a 19,200 mAh battery. | ||
 Fanttik X8 APEX Cordless Tire Inflator | 7.7 The most capable glovebox pump, tested to 40 psi on a truck tire in freezing weather before its battery quit. | Built-in battery | 150 PSI Rated for car tires up to 26.3 in.; not meant for truck tires. | 1.7 lb | ||
 Fanttik X9 Pro Portable Tire Inflator | 6.5 A well-liked pocket pump for bikes and motorcycles that gets slow and battery-limited on car tires filled from low. | Built-in battery | 150 PSI Marketed for compact cars, motorcycles, bikes and balls. | 1.2 lb | ||
 Makita 18V LXT Cordless Inflator DMP180Z (Tool Only) | 7.0 Light and quick on car tires for LXT owners, but there is no lab test, no corded backup and owners call it loud. | Tool battery | 120 PSI | 2.3 lb Bare tool; 3.1 lb with a battery (Makita USA spec for the DMP180ZX). | ||
 Milwaukee M12 Compact Inflator 2475-20 (Tool Only) | 7.3 A tidy M12 top-off pump with a good backlit gauge; Car and Driver found it only respectable on speed and it caps at 120 psi. | Tool battery | 120 PSI | 3.83 lb Bare tool, no battery. | ||
 Milwaukee M18 Inflator 2848-20 (Tool Only) | 8.7 Fastest in every test that included it, with TrueFill re-checking pressure, but it is bulky, loud, battery-only and sold bare. | Tool battery | 150 PSI | 7 lb Bare tool, no battery. | TrueFill re-checks pressure after it stops and tops up if it dropped. | |
 Ryobi ONE+ 18V High Pressure Digital Inflator PCL001B (Tool Only) | 6.8 A light, cheap ONE+ pump that finally adds auto shutoff, though owners report slow fills from low and a dim display. | Tool battery | 160 PSI | 1.7 lb Ryobi publishes no weight; about 1.7 lb bare per retailer listings. | ||
 Slime 12V Digital Tire Inflator 40088 | 6.6 Surprisingly second fastest in Outdoor Life's truck test for a small 12V plug-in, dragged down by reliability complaints. | 12V car outlet | 99 PSI Digital gauge reads 0-99 PSI; runs 10 min, then needs 25 min to cool. | 2.1 lb Slime publishes no weight; 2.1 lb is the retailer-listed figure. | ||
 VIAIR 400P Portable Compressor | 7.4 Moves serious air for big tires and off-road use, but it is heavy, runs hot and has neither auto shutoff nor a trusted gauge. | Battery clamps (12V) | 150 PSI 33% duty cycle at 100 PSI; rated for tires up to 35 in. | 10.4 lb | The separate 400P-Automatic adds a pressure-switch shutoff. | |
 VIAIR 85P Portable Compressor | 5.6 A solid VIAIR build boxed in by a 60 psi ceiling, an analog gauge and no auto shutoff. | 12V car outlet | 60 PSI 60 PSI max working pressure: car and SUV tires up to 31 in. | 4.3 lb | Analog gauge. The separate EVC85P adds a digital auto shutoff. | |
 VIAIR 88P Portable Compressor | 7.8 The fastest corded pump in GearJunkie's test for little money, but no auto shutoff, a gauge that read high and battery clamps only. | Battery clamps (12V) Clips onto the car battery; no accessory-socket plug. | 120 PSI 25 min duty cycle at 30 PSI. | 4.8 lb | Analog gauge. The separate EVC88P adds a digital auto shutoff. | |
 Xiaomi Portable Electric Air Compressor 2 | 6.0 Beautifully small with a precise gauge, but Xiaomi's own figure is about 8 minutes to fill an empty car tire. | Built-in battery | 150 PSI Xiaomi quotes about 8 min to fill an empty car tire. | 1.1 lb |
How the AI score works, and who wrote it
A language model rated these, not a test lab. Every score from 1 to 10 is an AI assessment of how good the product is against the other 18 in this comparison, formed from the specifications we verified plus the published lab reviews and owner reception found while researching each one. Nobody at Slopsheets listened to, wore or plugged in any of it.
It weighs the things a spec table cannot show: how a product is actually reviewed, how well the software works, build quality, and what you get for the money. That is deliberate. An earlier version of this column was pure arithmetic on the table and it ranked a bundle of cheap boxes above a class-leading single unit, because counting hardware is not the same as judging it.
Treat it as an informed starting point and read the sourced comparison, not as a verdict. The score is relative to this comparison only, so it means nothing across categories, and it carries no price, star rating or review count. Every specification behind it is sourced and checked; the score on top of them is opinion.
Frequently asked questions
what actually matters when choosing a tire inflator?
power source first, then size. a pump that matches batteries you already own, or one small enough to keep in the car, gets used. max psi rarely matters past 100 for cars, and airflow, which nobody prints, decides speed.
how much pressure does a car tire need?
most passenger cars sit around 30 to 40 psi; the exact number is on the sticker inside the driver's door jamb, not on the tire sidewall, which shows the maximum.
are battery-clamp compressors worth the hassle?
for trucks and off-road tires, yes. clamping to the battery lets a pump draw far more current than a 12v socket allows, which is why the viair clamp units fill big tires fastest. for a sedan, a plug-in or cordless pump is easier.
why does the pump's gauge disagree with my tpms?
the pump reads pressure through the hose while it runs, and cheaper sensors drift a few psi. check with a separate handheld gauge after filling, and trust the reading taken with the tire cold.
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