AstroAI 20V MAX Battery Charger — 21V 1.7A Fast Charger for AstroAI 20V Li‑ion Packs, ETL-Certified

The AstroAI 20V MAX Battery Charger rapidly refills compatible AstroAI 20V Li-ion battery packs in about one hour, providing a safe and efficient power solution for AstroAI compressors and pumps.

This compact charger is designed specifically for AstroAI 20V lithium-ion battery packs and delivers a high-current, reliable charge for handheld air compressors, multifunctional air pumps, and other AstroAI cordless tools (not compatible with C1 model). Built with safety certifications and clear LED status lights, it’s aimed at customers who want fast turnaround between jobs and predictable charging behavior.

How quickly will the AstroAI 20V MAX Battery Charger power my battery?

The unit provides a 1.7A charge current at 21V, which brings most AstroAI 20V Li-ion battery packs to full capacity in about one hour under normal conditions. Charge time can vary slightly with battery age and temperature.

• Output: 21V, 1.7A for higher-rate charging
• Typical full charge: ~60 minutes for compatible AstroAI packs
• Performance affected by battery health and ambient temperature

Is this charger safe to use and how will I know the battery status?

The charger holds ETL certification, reflecting compliance with established electrical safety standards. Integrated LED indicators show charging stages so you can quickly confirm whether the battery is charging, nearly done, or fully charged.

• Safety: ETL-listed for electrical safety and reliability
• Visual feedback: LEDs communicate charging state at a glance
• Protection: Designed to prevent basic overcharge and improper operation

Which AstroAI devices work with this charger and which do not?

This charger is made for AstroAI 20V lithium-ion battery packs and intended to support AstroAI handheld battery-powered air compressors and multifunctional air pumps for best performance. It is not compatible with the C1 model battery.

• Compatible: AstroAI 20V Li-ion battery packs for compressors and pumps
• Not compatible: AstroAI C1 battery model
• Ideal when paired with AstroAI cordless inflators for frequent use

What practical benefits will I notice during regular use?

Expect shorter downtime between jobs thanks to the fast charge and straightforward LED feedback that removes guesswork. The charger’s compact footprint makes it easy to store in a garage, workshop, or vehicle kit so batteries are ready when you need them.

• Reduced waiting: faster turnaround to resume tasks
• Space-saving design: convenient storage and portability
• Customer support: AstroAI provides assistance for questions or issues

Who is this for: This charger is aimed at AstroAI owners who use battery-powered inflators and compressors frequently and need dependable, quick recharging. It’s a practical accessory for DIYers, roadside kits, cyclists, small workshop users, and anyone who wants an ETL-listed charger to maximize uptime of their AstroAI 20V Li-ion batteries (exclude C1 model users).