For car owners who want the cheapest dependable set-and-forget pump to keep in the car. It isn’t built for large tires.
Amazon $30.39The AstroAI AIRUN H rates 3.6 among 12 V plug-in tire inflators; the Milwaukee M18 Inflator 2848-20 rates 3.6 among cordless ones. The AstroAI AIRUN H costs $136.46 less ($30.39 vs $166.85).

For M18 owners with trucks or several vehicles who want the fastest cordless fill and don’t mind the price.
Amazon $166.85Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different type classes (12 V plug-in and cordless), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | AstroAI AIRUN H | Milwaukee M18 Inflator 2848-20 |
|---|---|---|
| Overall rating | 3.6/5 | 3.6/5 |
| Value 35% | 83 $30.39 | 9 $166.85 without battery |
| Airflow 30% | 38 35 L/min (maker) | 83 39.9 L/min (maker) |
| Features 20% | 65 auto shutoff, 100 PSI max; runs 15 min at a time | 88 auto shutoff, runs 20 min at a time, 150 PSI max |
| Warranty 15% | 50 2-year warranty | 100 5-year warranty |
Specifications
| AstroAI AIRUN H | Milwaukee M18 Inflator 2848-20 | |
|---|---|---|
| Inflating | ||
| Max pressure | 100 PSI | 150 PSI |
| Airflow (maker) | 35 L/min | 39.9 L/min |
| Auto shutoff | Yes | Yes |
| Duty cycle | 15 min on | 20 min on |
| Power | ||
| Power | 12 V socket | Milwaukee M18 battery (sold separately) |
| Power bank | No | - |
| Power cord | 9.8 ft | - |
| Build | ||
| Air hose | - | 36 in |
| Light | Yes | - |
| Dimensions | 8.4 x 6.8 x 3.9 in | 13.8 x 6.4 x 7.8 in |
| Weight | 2.2 lb | 7 lb |
| Warranty | 2 years | 5 years |