{"product_id":"universal-21v-lithium-dual-port-power-tool-battery-charger","title":"Universal 21V Lithium Dual-Port Power Tool Battery Charger","description":"\n\u003ch2\u003eUniversal Dual-Port Lithium Battery Charger for Power Tools\u003c\/h2\u003e\n\u003cp\u003eKeep your cordless power tools ready for action with this versatile \u003cstrong\u003e21V Lithium Dual-Port Battery Charger\u003c\/strong\u003e. Engineered for home DIY enthusiasts and workshop professionals alike, this compact plug-in charger is compatible with most 18V–24V lithium batteries across a wide range of power tool brands — so you spend less time waiting and more time working.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpact-Resistant ABS Housing:\u003c\/strong\u003e Tough, drop-resistant outer shell protects internal components from scratches and everyday wear, extending the charger's service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Purity Copper Terminals:\u003c\/strong\u003e Low-resistance, high-conductivity copper contacts deliver faster, more stable charging while minimizing energy loss to save you time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Dual-Port Design:\u003c\/strong\u003e Features both metal iron sheet insertion ports and circular charging holes, making it compatible with most 21V lithium battery packs from a variety of power tool brands — no need to buy multiple brand-specific chargers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Level Safety Protection:\u003c\/strong\u003e Built-in metal heat dissipation structure and flame-retardant plastic shell work together with overcharge, overcurrent, and short-circuit protection to keep your batteries and workspace safe.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable, Flexible Cable:\u003c\/strong\u003e The insulated charging cable resists pulling and bending, reducing the risk of breakage or electrical leakage for long-term, reliable everyday use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Power Tool Lithium Battery Charger\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e 18V \/ 21V \/ 24V (USB 5–20V DC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e ≤37.5W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e DC (Plug-in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick Charge:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal + ABS Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Set\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible With\u003c\/h3\u003e\n\u003cp\u003eSuitable for charging 21V lithium batteries used in electric drills, electric screwdrivers, electric saws, and other cordless power tools. Ideal for home DIY projects and workshop maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProduct images are for reference; please refer to the written specifications for exact dimensions.\u003c\/li\u003e\n  \u003cli\u003eMinor measurement differences may occur due to manual measurement.\u003c\/li\u003e\n  \u003cli\u003eActual color may vary slightly from screen to screen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-precision-japanese-double-edged-hand-saw-sk5-steel-fine-toothed-for-carpentry-and-gardening-6-inch-blade-portable-mini-1\"\u003e1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Fine-Toothed for Carpentry and Gardening\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-professional-heavy-duty-pruning-shears-with-anti-slip-handle-design-suitable-for-trimming-thick-and-sturdy-branches\"\u003e1pc Professional Heavy-Duty Pruning Shears with Anti-Slip Handle Design\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-wooden-handle-nylon-bristle-paint-brush-for-oil-painting-dusting-and-cleaning-unrechargeable-hand-tool-set-without-batt-2\"\u003e10Pcs Wooden Handle Nylon Bristle Paint Brush Set for Oil Painting, Dusting \u0026amp; Cleaning\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What battery voltages is this dual-port lithium charger compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This universal charger is designed to work with 18V, 21V, and 24V lithium battery packs commonly used in cordless power tools such as electric drills, screwdrivers, and saws. Its dual-port design (metal insertion port + circular charging hole) ensures broad compatibility across many brands.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this charger include overcharge and short-circuit protection?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The charger features multi-level safety protection including overcharge, overcurrent, and short-circuit protection, along with a built-in metal heat dissipation structure and a flame-retardant plastic shell to ensure safe and reliable charging sessions.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this charger suitable for both home and professional workshop use?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. This plug-in charger is designed for both home DIY users and workshop professionals. Its universal dual-port compatibility means you can charge lithium batteries from different brands without needing separate, brand-specific chargers.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What battery voltages is this dual-port lithium charger compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This universal charger is designed to work with 18V, 21V, and 24V lithium battery packs commonly used in cordless power tools such as electric drills, screwdrivers, and saws. Its dual-port design (metal insertion port + circular charging hole) ensures broad compatibility across many brands.\"}}, {\"@type\": \"Question\", \"name\": \"Does this charger include overcharge and short-circuit protection?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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