For drivers on a budget who want a complete cordless kit with a 12 V cord as backup, for car, bike and motorcycle tires.
Amazon $65.99The Avid Power 20V Cordless Inflator is the better tire inflator overall, rated 3.9 to 3.5. The Avid Power 20V Cordless Inflator leads on value and airflow. The Milwaukee M12 Inflator 2475-20 wins on warranty. The Avid Power 20V Cordless Inflator costs $46.01 less ($65.99 vs $112).
For M12 owners who want a compact cordless inflator for car tires and top-ups. M18 owners or anyone with truck tires should look at the faster 2848-20.
Amazon $112Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Avid Power 20V Cordless Inflator for value ($65.99 vs $112 without battery) and airflow (35 L/min (maker) vs 24.9 L/min (maker)).
- Choose the Milwaukee M12 Inflator 2475-20 for warranty (3-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every cordless tire inflator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Avid Power 20V Cordless Inflator | Milwaukee M12 Inflator 2475-20 |
|---|---|---|
| Overall rating | 3.9/5 | 3.5/5 |
| Value 35% | 76 $65.99 | 45 $112 without battery |
| Airflow 30% | 67 35 L/min (maker) | 33 24.9 L/min (maker) |
| Features 20% | 76 auto shutoff, 150 PSI max; runs 10 min at a time | 75 auto shutoff, 120 PSI max |
| Warranty 15% | 50 2-year warranty | 100 3-year warranty |
Independent measurements
Avid Power 20V Cordless Inflator
| Tested by | Inflate time | Airflow | Noise | Conditions |
|---|---|---|---|---|
| Car and Driver | 254 s | - | 84.8 dB | 245/50R20 tire on a Hyundai Santa Cruz, timed from 10 to 30 psi (254 s); 524 s from 10 to 45 psi. Noise is the average dBA over 15 seconds of running. Tested the orange ACAP115D-O listing. |
| Outdoor Life | 617 s | - | 75.8 dB | LT275/65R18 truck tire from unreadable (near 0) to 25 psi, at about freezing in light snow. Noise measured 18 in away with a decibel meter. On its battery; battery ran out at 39 psi after 18:14. On the 12 V cord it took 9:53 to 25 psi and 23:56 to 50 psi. Tested the orange ACAP115D-O. |
| Reviewed | - | - | 89.5 dB | Front 17 in tire of a 2014 Subaru BRZ from 25 to 35 psi in “just over a minute” (no exact time given). Gauge within about 1 psi of a Kobalt digital gauge. Noise is A-weighted from 24 in away. Date is the page update; testing may be earlier. |
Milwaukee M12 Inflator 2475-20
No independent test published yet.
Specifications
| Avid Power 20V Cordless Inflator | Milwaukee M12 Inflator 2475-20 | |
|---|---|---|
| Inflating | ||
| Max pressure | 150 PSI | 120 PSI |
| Airflow (maker) | 35 L/min | 24.9 L/min |
| Auto shutoff | Yes | Yes |
| Duty cycle | 10 min on | 50% |
| Power | ||
| Power | Battery or 12 V socket | Milwaukee M12 battery (sold separately) |
| Battery | 2,000 mAh | - |
| Power cord | 9 ft | - |
| Build | ||
| Air hose | 19.7 in | 26 in |
| Light | Yes | Yes |
| Dimensions | - | 7.5 x 6.5 x 6.5 in |
| Weight | - | 3.5 lb |
| Warranty | 2 years | 3 years |
| Released | 2020-01 | 2018-05 |
