{"product_id":"18650-diy-power-bank-case-3-usb-ports-no-welding","title":"3×18650 DIY Power Bank Case – 3 USB Ports, No Welding","description":"\n\u003ch2\u003eHUXUAN 3×18650 DIY Power Bank Case with 3 USB Ports\u003c\/h2\u003e\n\u003cp\u003eBuild your own portable charger in minutes — no soldering, no welding, no tools required. The HUXUAN 3×18650 Power Bank Case lets you turn three standard 18650 batteries (sold separately) into a compact, on-the-go charging station with three USB output ports. Perfect for camping, travel, emergency preparedness, or any DIY electronics enthusiast.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolder-Free Setup:\u003c\/strong\u003e Simply insert your 18650 batteries and you're ready to go — plug-and-play design means zero technical skills needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTriple USB Output:\u003c\/strong\u003e Charge up to three devices simultaneously from a single compact housing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Lightweight:\u003c\/strong\u003e Compact size (22mm × 65mm × 98mm) slips easily into a bag, backpack, or pocket for reliable charging on the move.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Made from sturdy plastic and metal to protect your batteries and keep connections secure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmergency Ready:\u003c\/strong\u003e An ideal backup power source when outlets aren't available — great for outdoor adventures or power outages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18650 (×3, not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V 1A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V 1A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic + Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22mm × 65mm × 98mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1× Power Bank Case (batteries not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eInsert three 18650 batteries of the same capacity. \u003cstrong\u003eNote:\u003c\/strong\u003e The flat end (sheet) is positive (+) and the spring end is negative (−). Do not reverse polarity — incorrect insertion may damage the board.\u003c\/li\u003e\n  \u003cli\u003eConnect your USB data cable to any of the three USB ports.\u003c\/li\u003e\n  \u003cli\u003eBegin charging your device instantly — no switches or setup required.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-inflatable-waist-cushion-travel-waist-support-portable-inflatable-waist-cushion-travel-pillow-complimentary-storage-bag\"\u003eInflatable Waist Cushion – Portable Travel Support Pillow\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-multifunction-portable-kids-toy-storage-bag-building-blocks-play-mat-2\"\u003eMultifunction Portable Storage Bag \u0026amp; Play Mat\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-press-type-inflatable-pillow-u-shaped-pillow-foldable-u-shaped-double-hump-neck-pillow-portable-outdoor-travel-pillow\"\u003eFoldable U-Shaped Neck Pillow – Portable Travel Companion\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: Are 18650 batteries included with the power bank case?\u003c\/h4\u003e\n\u003cp\u003eA: No, the 18650 batteries are not included. You will need to purchase three 18650 batteries separately. Make sure all three batteries have the same capacity for optimal performance and safety.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many devices can I charge at the same time with this DIY power bank case?\u003c\/h4\u003e\n\u003cp\u003eA: The case features three USB output ports, allowing you to charge up to three devices simultaneously, such as smartphones, earbuds, or other USB-powered devices.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need any soldering or special tools to assemble this power bank case?\u003c\/h4\u003e\n\u003cp\u003eA: No special tools or soldering are required. This is a weld-free, plug-and-play design — simply insert your 18650 batteries (observing correct polarity) and connect your USB cable to start charging right away.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the output of this 18650 power bank case?\u003c\/h4\u003e\n\u003cp\u003eA: The output is 5V at 1A per port, which is suitable for charging most smartphones and small USB devices. The input for recharging the case is also 5V 1A.\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\": \"Are 18650 batteries included with the power bank case?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the 18650 batteries are not included. You will need to purchase three 18650 batteries separately. 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