{"product_id":"22-5w-fast-charging-power-bank-kit-diy-21700-battery-case-tft-screen","title":"22.5W Fast Charging Power Bank Kit – DIY 21700 \u0026 TFT Screen","description":"\n\u003ch2\u003eZOHMYIY 22.5W Fast Charging Power Bank Kit with TFT Color Screen\u003c\/h2\u003e\n\u003cp\u003ePower up your devices at full speed with this \u003cstrong\u003eDIY 22.5W Fast Charging Power Bank Kit\u003c\/strong\u003e from ZOHMYIY. Designed for tech enthusiasts and everyday users alike, this mini portable charger kit features a vibrant \u003cstrong\u003eTFT color screen\u003c\/strong\u003e for real-time battery status, supports 22.5W fast charging output, and is built around the popular \u003cstrong\u003e21700 battery format\u003c\/strong\u003e — giving you a customizable, high-capacity charging solution in a compact form factor.\u003c\/p\u003e\n\u003cp\u003eWhether you're assembling your own power bank or upgrading an existing setup, this kit delivers a premium charging experience with transparent, at-a-glance battery monitoring. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e22.5W Fast Charging:\u003c\/strong\u003e Rapidly charges compatible smartphones, earbuds, tablets, and other USB-powered devices.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTFT Color Screen:\u003c\/strong\u003e Clear, full-color display shows battery percentage and charging status in real time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY 21700 Battery Case:\u003c\/strong\u003e Compatible with 21700 format lithium cells — build or upgrade your power bank to your preferred capacity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWireless Connection Support:\u003c\/strong\u003e Convenient wireless connectivity for flexible usage options.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Slim dimensions (7.4 × 2.2 cm \/ 2.91 × 0.86 in) slip easily into a pocket, bag, or backpack.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Premium plastic and metal build for everyday reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in Multiple Quantities:\u003c\/strong\u003e Choose 1, 2, or 3 pcs to fit your needs — perfect for personal use or gifting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafe Voltage Range:\u003c\/strong\u003e Operates below 50V AC \/ 75V DC for standard consumer device compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Manufactured without high-concern substances for added peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ZOHMYIY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic + Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 7.4 × 2.2 cm \/ 2.91 × 0.86 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Green\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e Below 50V AC \/ 75V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Wireless\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Format:\u003c\/strong\u003e 21700\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1, 2, or 3 pcs (as selected)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cp\u003e1 × Power Bank Kit (DIY 21700 Battery Case with TFT Color Screen \u0026amp; 22.5W Fast Charging Module) — quantity as selected at checkout (1\/2\/3 pcs).\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You Might Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-5m-nylon-braided-3-5mm-aux-audio-cable-car-phone-headphone\"\u003e1.5M Nylon Braided 3.5mm AUX Audio Cable | Car, Phone \u0026amp; Speaker\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-5l-portable-hydrogen-water-bottle-hydrogen-rich-sports-kettle-1\"\u003e1.5L Hydrogen Water Bottle – Portable Hydrogen-Rich Sports Kettle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on safe use of portable lithium battery chargers, refer to the U.S. Consumer Product Safety Commission's Lithium Battery Safety resources.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotos are for illustrative purposes; refer to listed dimensions for actual size.\u003c\/li\u003e\n  \u003cli\u003eAllow ±5–10 mm tolerance due to manual measurement.\u003c\/li\u003e\n  \u003cli\u003eColors may vary slightly depending on your monitor's settings.\u003c\/li\u003e\n  \u003cli\u003eBatteries are \u003cstrong\u003enot included\u003c\/strong\u003e — this is a DIY case\/module kit compatible with 21700 lithium cells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does the 22.5W fast charging power bank kit come with 21700 batteries included?\u003c\/h4\u003e\n\u003cp\u003eA: No, the 21700 lithium batteries are not included with this DIY power bank kit. You will need to source compatible 21700 cells separately. The kit includes the fast-charging case module with TFT color screen ready for your batteries.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What devices is this 22.5W fast charging power bank compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This power bank kit supports 22.5W fast charging for a wide range of USB-powered devices including smartphones, wireless earbuds, smartwatches, and tablets that support fast-charge protocols. Always check your device's fast charging compatibility before use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the TFT color screen work on this portable charger?\u003c\/h4\u003e\n\u003cp\u003eA: The TFT color screen displays real-time battery capacity and charging status so you can monitor your power level at a glance — no guessing how much charge is left. It activates automatically when the power bank is in use or being charged.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I buy multiple units for gifts or backup use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This DIY 21700 power bank kit is available in packs of 1, 2, or 3 units — simply select your preferred quantity at checkout. It makes a great tech gift or a smart backup charging solution for travel and outdoor use.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does the 22.5W fast charging power bank kit come with 21700 batteries included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the 21700 lithium batteries are not included with this DIY power bank kit. You will need to source compatible 21700 cells separately. 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