AstroAI Portable Tire Inflator L7S Cordless Air Compressor 150 PSI — 4000mAh Battery & LED Light, Auto Shut-Off (Green)

The AstroAI L7S merges a high-capacity 4000mAh battery, intuitive digital controls and a protective silicone sleeve into a portable air compressor designed for cars, motorcycles, bicycles and sports gear. Lightweight and easy to stow, it’s built to top up mid-sized tires quickly, provide emergency illumination, and act as a power bank for small devices. The unit’s five preset modes and four pressure units let you tailor inflation to specific needs while the auto-stop prevents overinflation.

How fast and powerful is the L7S for everyday tire inflation?

The L7S delivers up to 150 PSI and can top up a 195/65R15 car tire from 30 to 36 PSI in about 1.5 minutes under typical conditions. Its 4000mAh battery supports multiple inflations per charge so you can handle several tires without recharging. Note that the compressor is not intended for heavy-duty truck or RV tires.

• 150 PSI maximum pressure for passenger vehicles and bikes
• Refills a 195/65R15 tire 30→36 PSI in ~1.5 minutes
• 4000mAh battery — multiple tire inflations per charge
• Not suitable for large commercial or off-road tires

What settings and controls does the inflator offer?

Choose from five smart modes—car, motorcycle, bicycle, ball, and custom—plus four pressure units (PSI, bar, kPa, kg/cm²). The digital display shows live pressure and lets you preset a target between 3 and 150 PSI; the unit stops automatically when that target is reached. The silicone sleeve improves grip and protects the device from shocks and light drops.

• Five quick-mode presets for common inflatables
• Custom mode for user-defined target pressure (3–150 PSI)
• Digital pressure gauge with selectable units
• Silicone protection for durability and quieter operation

What extra features help in roadside or low-light situations?

The L7S doubles as an emergency tool with a top-mounted LED offering steady light, SOS and strobe modes to improve visibility at night. It also includes USB-C and USB-A ports so you can charge phones or small electronics from the internal battery while waiting for assistance. Compact dimensions and low weight make it simple to keep in a trunk, backpack or garage kit.

• 3-mode LED light (flashlight, SOS, strobe) for night use
• USB-C and USB-A output to charge phones and accessories
• Weighs ~1.01 lb and measures 5.31×2.71×2.04 in for easy storage
• Protective sleeve reduces vibration and surface damage

How long does the battery last and how many tires can it inflate per charge?

With a full charge the L7S can inflate up to eight 195/65R15 tires from 30 to 36 PSI, making it useful for routine maintenance and short trips. Runtime will vary with ambient temperature, starting pressure and duty cycle. The onboard battery also supports charging small devices, giving you backup power when needed.

• 4000mAh internal battery — multiple inflations per charge
• Estimated capacity: up to ~8 standard car tires (30→36 PSI)
• Battery performance affected by temperature and starting PSI
• Charges phones via USB-C/USB-A ports

Who is this for? The AstroAI L7S is aimed at drivers, cyclists and sports enthusiasts who want a portable, user-friendly inflator for light to medium tire maintenance and emergency top-ups. It’s a strong fit for commuters, weekend riders, and anyone who prefers a cordless unit with digital controls, rapid inflation and added emergency lighting. If you need a heavy-duty compressor for trucks, RVs or commercial tires, consider a larger wired unit instead.