{"product_id":"astroai-20v-max-battery-charger-21v-1-7a-fast-charger-for-astroai-20v-li-ion-packs-etl-certified","title":"AstroAI 20V MAX Battery Charger — 21V 1.7A Fast Charger for AstroAI 20V Li‑ion Packs, ETL-Certified","description":"\u003cp\u003e\u003cstrong\u003eThe 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.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will the AstroAI 20V MAX Battery Charger power my battery?\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOutput: 21V, 1.7A for higher-rate charging\u003c\/li\u003e\n  \u003cli\u003eTypical full charge: ~60 minutes for compatible AstroAI packs\u003c\/li\u003e\n  \u003cli\u003ePerformance affected by battery health and ambient temperature\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this charger safe to use and how will I know the battery status?\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSafety: ETL-listed for electrical safety and reliability\u003c\/li\u003e\n  \u003cli\u003eVisual feedback: LEDs communicate charging state at a glance\u003c\/li\u003e\n  \u003cli\u003eProtection: Designed to prevent basic overcharge and improper operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich AstroAI devices work with this charger and which do not?\u003c\/h3\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible: AstroAI 20V Li-ion battery packs for compressors and pumps\u003c\/li\u003e\n  \u003cli\u003eNot compatible: AstroAI C1 battery model\u003c\/li\u003e\n  \u003cli\u003eIdeal when paired with AstroAI cordless inflators for frequent use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat practical benefits will I notice during regular use?\u003c\/h3\u003e\n\u003cp\u003eExpect 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.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReduced waiting: faster turnaround to resume tasks\u003c\/li\u003e\n  \u003cli\u003eSpace-saving design: convenient storage and portability\u003c\/li\u003e\n  \u003cli\u003eCustomer support: AstroAI provides assistance for questions or issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho 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).\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does it take to fully charge an AstroAI 20V battery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: About one hour for compatible AstroAI 20V Li-ion packs under typical conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the AstroAI 20V MAX charger safe to use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it is ETL certified and features LED indicators for clear charging status.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AstroAI","offers":[{"title":"Default Title","offer_id":48085636350110,"sku":"B096KD8C8R","price":43.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/astroai-charger-front-view.jpg?v=1785875816","url":"https:\/\/northtrailauto.ca\/products\/astroai-20v-max-battery-charger-21v-1-7a-fast-charger-for-astroai-20v-li-ion-packs-etl-certified","provider":"North Trail Auto","version":"1.0","type":"link"}