{"product_id":"18650-lithium-battery-charger-1-2-4-slot-ac-110-240v","title":"18650 Battery Charger – 1\/2\/4 Slot Smart Li-ion Charger","description":"\n\u003ch2\u003e18650 Lithium Battery Charger – Smart 4-Slot Charging for Multiple Li-ion Sizes\u003c\/h2\u003e\n\u003cp\u003eKeep your rechargeable lithium batteries topped up and ready to go with this versatile \u003cstrong\u003e18650 Battery Charger\u003c\/strong\u003e. Available in 1, 2, or 4-slot configurations, this intelligent charger works with a wide range of cylindrical lithium battery sizes and automatically stops charging once full — so you never have to worry about overcharging.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal AC Input:\u003c\/strong\u003e Compatible with AC 110–240V, 50\/60Hz — works worldwide with a suitable plug adapter.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmart Auto Cut-Off:\u003c\/strong\u003e Charging automatically stops at 4.23V cut-off voltage, protecting your batteries from overcharge damage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Slot Independent Charging:\u003c\/strong\u003e Each slot charges independently with zero interference — charge up to 4 batteries simultaneously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo-Color LED Indicator:\u003c\/strong\u003e Red light = charging in progress; Green light = fully charged. Easy to read at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Battery Compatibility:\u003c\/strong\u003e Supports 10440, 14500, 16340, 16650, 14650, 18350, 18500, and 18650 lithium batteries.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Measures just 125 × 92 × 30mm — great for home, office, or travel use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e DC 4.2V \/ 600mA per slot for safe, steady charging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e AC 110–240V, 50\/60Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e DC 4.2V, 600mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharging Cut-Off Voltage:\u003c\/strong\u003e 4.23V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlots Available:\u003c\/strong\u003e 1 \/ 2 \/ 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndicator Light:\u003c\/strong\u003e Red (charging) \/ Green (full)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 125 × 92 × 30mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Batteries:\u003c\/strong\u003e 10440, 14500, 16340, 16650, 14650, 18350, 18500, 18650\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\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Batteries are \u003cem\u003enot\u003c\/em\u003e included. This charger is for lithium-ion (Li-ion) batteries only.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-relay-module-dc-3-3v-24v-optocoupler-arduino\"\u003e1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-8m-displayport-to-hdmi-cable-4k-dp-adapter-pc-hdtv-projector\"\u003e1.8M DisplayPort to HDMI Cable 4K – DP Adapter for PC \u0026amp; TV\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor safety guidance on handling and storing lithium-ion batteries, refer to the U.S. Consumer Product Safety Commission – Lithium Battery Safety.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Battery_charger\" target=\"_blank\" rel=\"noopener\"\u003eBattery charger\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this 18650 battery charger compatible with batteries other than 18650?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This charger supports a wide range of cylindrical lithium battery sizes including 10440, 14500, 16340, 16650, 14650, 18350, 18500, and of course 18650 batteries, making it highly versatile for multi-device households.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this charger in countries with 220V power outlets?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The charger accepts AC 110–240V input at 50\/60Hz, making it compatible with both North American (110V) and European\/international (220V) power supplies. Just ensure you use the correct plug adapter for your region.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will the charger damage my batteries if I leave them in overnight?\u003c\/h4\u003e\n\u003cp\u003eA: No. This smart charger features an automatic cut-off at 4.23V — once a battery is fully charged, it stops automatically to prevent overcharging, keeping your batteries safe and extending their lifespan.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I charge different battery sizes in the same unit at the same time?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Each slot operates independently with no interference between slots, so you can charge different compatible battery sizes simultaneously without any issues.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this 18650 battery charger compatible with batteries other than 18650?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! This charger supports a wide range of cylindrical lithium battery sizes including 10440, 14500, 16340, 16650, 14650, 18350, 18500, and of course 18650 batteries, making it highly versatile for multi-device households.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this charger in countries with 220V power outlets?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. 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Each slot operates independently with no interference between slots, so you can charge different compatible battery sizes simultaneously without any issues.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/oasis-select.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"18650 Battery Charger – 1\/2\/4 Slot Smart Li-ion Charger\", \"item\": \"https:\/\/oasis-select.com\/products\/18650-lithium-battery-charger-1-2-4-slot-ac-110-240v\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"4 Slots USB","offer_id":47736529387625,"sku":"14:193#4 Slots USB","price":15.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S8217b6a1a76a4ab7a1661948898c5c69I.webp?v=1782840131","url":"https:\/\/oasis-select.com\/products\/18650-lithium-battery-charger-1-2-4-slot-ac-110-240v","provider":"Oasis Select","version":"1.0","type":"link"}