{"product_id":"aluminum-alloy-diy-18650-power-bank-box-portable-charger-shell","title":"Aluminum Alloy DIY 18650 Power Bank Box | Portable Charger Shell","description":"\n\u003ch2\u003eBuild Your Own Portable Charger with This Aluminum Alloy DIY Power Bank Box\u003c\/h2\u003e\n\u003cp\u003eTake control of your on-the-go charging with this sleek, durable \u003cstrong\u003ealuminum alloy DIY power bank enclosure\u003c\/strong\u003e. Designed for a single \u003cstrong\u003e18650 battery\u003c\/strong\u003e, this compact shell lets you create a custom portable charger for smartphones and other USB-powered devices — perfect for makers, tinkerers, and anyone who loves a hands-on electronics project.\u003c\/p\u003e\n\n\u003cp\u003eThe solid aluminum alloy construction keeps your build lightweight yet sturdy, while the detachable design makes battery swaps quick and hassle-free. At just 90 × 20 × 20 mm, it slips easily into a pocket or bag.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium aluminum alloy — lightweight, durable, and heat-dissipating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Battery:\u003c\/strong\u003e 1 × 18650 cell (unprotected flat-top, battery NOT included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Dimensions:\u003c\/strong\u003e 90 × 20 × 20 mm — ultra-portable form factor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetachable Design:\u003c\/strong\u003e Easy access for battery installation and replacement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY Friendly:\u003c\/strong\u003e Great for electronics hobbyists and makers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Compatible with mobile phones and other USB-charged devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePolarity matters:\u003c\/strong\u003e Always install the 18650 battery strictly according to the positive (+) and negative (−) terminal markings. The spring end is the negative terminal. Incorrect installation may damage the unit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery type:\u003c\/strong\u003e Use only an \u003cstrong\u003eunprotected flat-top 18650 battery\u003c\/strong\u003e. Button-top or protected cells are not recommended.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery not included:\u003c\/strong\u003e Package contains 1 × DIY power bank shell only.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAppearance note:\u003c\/strong\u003e This product is continuously improved; minor variations in color or finish may occur. Please consider this before ordering if you have specific appearance requirements.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Aluminum Alloy DIY 18650 Power Bank Box (battery not included)\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\/airtight-transparent-pet-storage-bottle-craft-beads-home-organization\"\u003eAirtight Transparent PET Storage Bottle | Beads \u0026amp; Crafts\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/transparent-pet-refillable-bottle-leak-proof-travel-cosmetic-storage\"\u003eTransparent PET Refillable Bottle – Leak-Proof Travel Storage\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ceramic-mini-sealed-storage-jar-portable-travel-container\"\u003eCeramic Mini Sealed Storage Jar – Portable Travel Container\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: What type of 18650 battery does this DIY power bank box require?\u003c\/h4\u003e\n\u003cp\u003eA: This aluminum alloy power bank shell is compatible with \u003cstrong\u003eunprotected flat-top 18650 batteries only\u003c\/strong\u003e. Protected or button-top 18650 cells may not fit correctly inside the enclosure. Please ensure you source the correct battery type before use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the 18650 battery included with this power bank enclosure?\u003c\/h4\u003e\n\u003cp\u003eA: No — the package includes \u003cstrong\u003eone DIY aluminum alloy power bank box shell only\u003c\/strong\u003e. The 18650 battery must be purchased separately. This gives you the flexibility to choose a battery that best suits your capacity and brand preferences.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this DIY 18650 power bank box charge a smartphone?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This enclosure is designed to work as a portable charger for \u003cstrong\u003emobile phones and other USB-powered devices\u003c\/strong\u003e. Simply install a compatible unprotected flat-top 18650 cell (not included) and connect your device via the built-in output port to start charging.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What are the dimensions of this aluminum power bank shell?\u003c\/h4\u003e\n\u003cp\u003eA: The enclosure measures \u003cstrong\u003e90 × 20 × 20 mm\u003c\/strong\u003e, making it extremely compact and pocket-friendly — ideal for carrying alongside your phone, keys, or in a small bag when you need a backup charge on the go.\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 type of 18650 battery does this DIY power bank box require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This aluminum alloy power bank shell is compatible with unprotected flat-top 18650 batteries only. Protected or button-top 18650 cells may not fit correctly inside the enclosure. Please ensure you source the correct battery type before use.\"}}, {\"@type\": \"Question\", \"name\": \"Is the 18650 battery included with this power bank enclosure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — the package includes one DIY aluminum alloy power bank box shell only. 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