AstroAI AIRUN L7 Cordless Tire Inflator Review
A 1.17 lb cordless inflator rated to 150 PSI with a 4,000 mAh battery, 17 L/min airflow, auto shut-off and USB-C charging.
By Watt Versus Editorial· Updated
This page was drafted with AI assistance from manufacturers' specs and manuals, and is checked by our editor.
Our verdict
A glovebox inflator for topping up car, bike and motorcycle tires. For truck or off-road tires, step up to a VIAIR or a tool-battery inflator.
Pros and cons
Pros
- 1.17 lb and 5.27 x 2.59 x 1.96 in, by AstroAI's figures
- Auto shut-off at the preset pressure
- Refills up to 8 car tires (195/65R15) from 30 to 36 PSI per charge, per AstroAI
- 2-year warranty
Cons
- Short 0.82 ft hose
- Must rest 10 minutes after 15 minutes of use
- Small battery suits top-ups, not filling large truck tires from flat
Specifications
| Max pressure | 150 PSI |
|---|---|
| Power source | Built-in battery, USB-C charging |
| Battery | 4,000 mAh (2 x 2,000 mAh) |
| Airflow | 17 L/min |
| Display | Digital, shows real-time and preset pressure; PSI, Bar, kPa, kg/cm² |
| Auto shutoff | Yes, at the preset pressure |
| Duty cycle | Rest 10 minutes after 15 minutes of use |
| Hose length | 0.82 ft (25 cm) |
| Included accessories | USB charging cord, 2 air nozzles, Presta-to-Schrader adapter, needle valve adapter, extension hose coupling |
| Weight | 1.17 lb |
| Dimensions | 5.27 x 2.59 x 1.96 in |
| Warranty | 2 years |
Who it suits
Drivers and cyclists who want a pocket-size inflator for regular top-ups. AstroAI rates it at 150 PSI and 17 L/min, and says one charge refills up to eight 195/65R15 tires from 30 to 36 PSI. It charges over USB-C, so it shares a cable with a phone.
For a 12 V plug-in alternative, see the AstroAI AIRUN H.
Who should skip it
Owners of light-truck and off-road tires. The battery and 25 cm hose suit top-ups; for large tires the VIAIR 88P or a Milwaukee M18 moves more air.
What we could not confirm
AstroAI's page and manual give the battery as 4,000 mAh but not in watt-hours, and no noise rating. The refill figure is AstroAI's.
Frequently asked questions
- How many tires can the AstroAI L7 fill on one charge?
- AstroAI says up to eight 195/65R15 car tires from 30 to 36 PSI, depending on how often it is used.
- Does the AstroAI L7 shut off automatically?
- Yes. You preset the target pressure and it stops when the tire reaches it, according to AstroAI.
- How long can the L7 run continuously?
- AstroAI's manual says to let it cool for 10 minutes after 15 minutes of continuous use.
Sources
The specifications and claims on this page come from these manufacturer documents. Figures are the manufacturers' own unless the text says otherwise.
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