{"product_id":"diy-21700-battery-power-bank-case-type-c-5v1a-solder-free-mini-power-supply-kit","title":"DIY 21700 Power Bank Case Kit – Type-C 5V1A Solder Free","description":"\n\u003ch2\u003eDIY 21700 Battery Power Bank Case – Portable Type-C Mini Power Supply Kit\u003c\/h2\u003e\n\u003cp\u003eBuild your own compact, solder-free power bank with this DIY 21700 Battery Power Bank Case Kit. Designed for electronics enthusiasts, hobbyists, and everyday users alike, this lightweight plastic shell lets you create a custom portable charger using a standard 21700 cell — no soldering required. Simply assemble, insert your battery, and enjoy on-the-go power via the Type-C port at 5V\/1A output.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolder-Free Assembly:\u003c\/strong\u003e Beginner-friendly design — no soldering tools needed. Snap it together in minutes for a fully functional mini power supply.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType-C Output (5V\/1A):\u003c\/strong\u003e Compatible with a wide range of modern devices, including smartphones, earbuds, and other USB-powered electronics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlim \u0026amp; Lightweight:\u003c\/strong\u003e Matte plastic housing keeps the unit ultra-portable — perfect for commutes, travel, outdoor activities, and office use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFashionable Design:\u003c\/strong\u003e Sleek, eye-catching aesthetic that suits both personal daily use and corporate gifting or promotional events.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits 21700 Battery:\u003c\/strong\u003e Compatible with standard 21700 lithium cells (battery not included). Easy to replace or upgrade your cell as needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComes with Charging Lanyard:\u003c\/strong\u003e Attached lanyard for convenient carrying and quick access wherever you go.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessionally Tested:\u003c\/strong\u003e Quality-assured construction ensures reliable, consistent output every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIY Power Bank Case \/ Shell\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Battery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21700 Li-ion Cell (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eType-C\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\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMatte Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolder-Free DIY Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece per package\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\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDaily commuting and travel power backup\u003c\/li\u003e\n  \u003cli\u003eDIY electronics projects and prototyping\u003c\/li\u003e\n  \u003cli\u003eCorporate gifting and promotional event souvenirs\u003c\/li\u003e\n  \u003cli\u003eOffice and outdoor use\u003c\/li\u003e\n  \u003cli\u003eMakers, hobbyists, and electronics students\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You Might Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-large-capacity-battery-storage-organizer-box-batteries-not-included-vintage-beer-crate-appearance-holds-30-aaa-batteries\"\u003e1PC Large Capacity Battery Storage Organizer Box\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-mobile-data-cable-storage-box-portable-winding-earphone-charger-storage-box-with-lid-drawer-organizer-box\"\u003e1PC Mobile Data Cable Storage Box \u0026amp; Charger Organizer\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does the DIY 21700 Power Bank Case Kit include the battery?\u003c\/h4\u003e\n\u003cp\u003eA: No, the 21700 lithium-ion battery is not included. You will need to purchase a compatible 21700 cell separately and insert it into the case to complete your DIY power bank.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need soldering skills or special tools to assemble this power bank case kit?\u003c\/h4\u003e\n\u003cp\u003eA: Not at all! This kit is specifically designed as a solder-free DIY assembly, making it accessible for beginners and hobbyists. No soldering iron or technical expertise is required — simply follow the assembly steps and your mini power supply will be ready to use.\u003c\/p\u003e\n\u003ch4\u003eQ: What devices can I charge with this Type-C power bank case?\u003c\/h4\u003e\n\u003cp\u003eA: The Type-C output (5V\/1A) is compatible with a wide range of USB-powered electronics, including smartphones, wireless earbuds, small gadgets, and other devices that support standard USB charging. It is ideal as a backup power source for everyday portable electronics.\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\": \"Does the DIY 21700 Power Bank Case Kit include the battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the 21700 lithium-ion battery is not included. 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