{"product_id":"smart-usb-li-ion-battery-charger-2-slot-14500-18650","title":"2-Slot USB Li-ion Battery Charger for 14500 \u0026 18650","description":"\n\u003ch2\u003eAlasicka 2-Slot Smart USB Li-ion Battery Charger for 14500 \u0026amp; 18650 Batteries\u003c\/h2\u003e\n\u003cp\u003eKeep your rechargeable lithium-ion batteries fully charged and ready with the Alasicka Universal 2-Slot Smart LED Battery Charger. Designed for 3.7–4.2V Li-ion cells including popular \u003cstrong\u003e14500\u003c\/strong\u003e and \u003cstrong\u003e18650\u003c\/strong\u003e battery sizes, this compact USB charger is perfect for flashlights, cameras, vapes, portable fans, and more. CE-certified for safety and built with intelligent charging technology. Made in China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Telescopic spring-loaded slots accommodate 14500 and 18650 Li-ion rechargeable batteries (3.7–4.2V). Charge one or two batteries at a time — independent channels mean each slot works on its own.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Status Indicator:\u003c\/strong\u003e Red LED light signals active charging; turns green when your battery is fully charged — no guesswork needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree-Stage Intelligent Charging:\u003c\/strong\u003e Automatically manages charging current across three stages (trickle → constant current → constant voltage) to maximize battery lifespan and charging efficiency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically stops charging when the battery reaches full capacity, preventing overcharging and heat buildup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-Reverse Connection:\u003c\/strong\u003e Accidentally inserted a battery backwards? No problem — the charger detects reverse polarity and powers off instantly to prevent short circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Temperature Resistant Materials:\u003c\/strong\u003e Constructed from heat-dissipating materials to stay cool during extended charging sessions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUSB Powered (5V DC Input):\u003c\/strong\u003e Plug into any USB power source — wall adapters, laptop USB ports, power banks, or car USB chargers — for ultimate charging flexibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick Charge Capable:\u003c\/strong\u003e Recharging current of 1–3A (1000 mA) for efficient, faster top-ups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Professionally tested and certified to meet safety and quality standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Batteries:\u003c\/strong\u003e 18650 \/ 14500 Li-ion (3.7–4.2V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e 5V DC (USB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e ≤37.5W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecharging Current:\u003c\/strong\u003e 1–3A \/ 1000 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDischarge Current:\u003c\/strong\u003e 500 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlots:\u003c\/strong\u003e 2 (independent channels)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e LED indicator (Red = Charging, Green = Full)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Alasicka USB 2-Slot Li-ion Battery Charger\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cp\u003eLooking for more handy tools and accessories for everyday use?\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10cm-wireless-led-motion-sensor-night-light-type-c-rechargeable-cabinet-wardrobe-lamp-for-staircase-backlight-kitchen-lighting\"\u003e10CM Wireless LED Motion Sensor Night Light – Type-C Rechargeable Cabinet Lamp\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-100pcs-microfiber-towels-car-wash-drying-cloth-towel-household-cleaning-cloths-auto-detailing-polishing-cloth-home-clean-tools\"\u003eMicrofiber Towels – Car Wash Drying Cloth \u0026amp; Home Cleaning Tools\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 – Dusting \u0026amp; Cleaning Tool Set\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Can this charger charge 1.2V nickel-cadmium (NiCd) or nickel-metal hydride (NiMH) batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No. This charger is designed specifically for 3.7–4.2V Li-ion rechargeable batteries such as the 14500 and 18650 formats. It is not compatible with 1.2V NiCd or NiMH batteries.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I charge disposable (single-use) batteries with this charger?\u003c\/h4\u003e\n\u003cp\u003eA: No. Only rechargeable lithium-ion batteries should be used. Attempting to charge disposable batteries is unsafe and not supported by this device.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I charge just one battery at a time, or do I need to insert two?\u003c\/h4\u003e\n\u003cp\u003eA: You can charge either one or two batteries at a time. Each slot operates as an independent channel, so inserting a single battery into either slot works perfectly fine.\u003c\/p\u003e\n\u003ch4\u003eQ: What USB power sources are compatible with this charger?\u003c\/h4\u003e\n\u003cp\u003eA: The charger accepts any standard 5V DC USB power source — including wall adapters, computer USB ports, power banks, and in-car USB chargers — giving you maximum flexibility wherever you are.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I know when my battery is fully charged?\u003c\/h4\u003e\n\u003cp\u003eA: The LED indicator on the charger glows \u003cstrong\u003ered\u003c\/strong\u003e while charging is in progress and switches to \u003cstrong\u003egreen\u003c\/strong\u003e once the battery is fully charged. The charger will also automatically stop supplying current to prevent overcharging.\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\": \"Can this charger charge 1.2V nickel-cadmium (NiCd) or nickel-metal hydride (NiMH) batteries?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. This charger is designed specifically for 3.7–4.2V Li-ion rechargeable batteries such as the 14500 and 18650 formats. It is not compatible with 1.2V NiCd or NiMH batteries.\"}}, {\"@type\": \"Question\", \"name\": \"Can I charge disposable (single-use) batteries with this charger?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. Only rechargeable lithium-ion batteries should be used. 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