{"product_id":"18650-mini-power-bank-kit-keychain","title":"DIY 18650 Mini Power Bank Kit – 2-Cell Pocket Charger with Keychain \u0026 USB Output (No Cells)","description":"\u003cdiv style=\"font-family: Arial, sans-serif; line-height: 1.6;\"\u003e\n\u003ch2\u003eDIY 18650 Mini Power Bank Kit (No Cells Included)\u003c\/h2\u003e\n\u003cp\u003eBuild your own portable 2-cell power bank with keychain convenience. Ideal for phones, flashlights, or small USB gadgets—perfect for on-the-go DIY power solutions.\u003c\/p\u003e\n\u003ch3\u003e🔋 Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHolds \u003cstrong\u003e2× 18650 Li-ion cells\u003c\/strong\u003e (not included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-A output (5 V)\u003c\/strong\u003e for charging phones and accessories\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicro-USB input (5 V)\u003c\/strong\u003e for recharging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED indicator\u003c\/strong\u003e shows charging status\u003c\/li\u003e\n\u003cli\u003eBuilt-in \u003cstrong\u003eBMS protection\u003c\/strong\u003e: over-charge, over-discharge, short-circuit safety\u003c\/li\u003e\n\u003cli\u003eCompact \u003cstrong\u003eABS housing\u003c\/strong\u003e with keychain attachment for everyday carry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e⚙️ Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e Micro-USB 5 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e USB-A 5 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Cells:\u003c\/strong\u003e 2× 18650 Li-ion (flat-top preferred)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e ≈ 95 × 35 × 25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.20 lb (0.09 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🧰 What's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× Power bank housing with pre-installed BMS and ports\u003c\/li\u003e\n\u003cli\u003e1× Keychain loop and screw set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 12px; color: #555;\"\u003eSmall note: cells and wires are not included. You can find compatible 18650 cells on RenewSpark.\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #555;\"\u003e—  \u003cbr\u003eDownload “RenewSpark Tools” on the iOS App Store — the toolbox I use for battery building.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"RenewSpark","offers":[{"title":"Green","offer_id":47193299124451,"sku":"PB101","price":4.2,"currency_code":"USD","in_stock":false},{"title":"Purple","offer_id":47193299157219,"sku":"PB102","price":4.2,"currency_code":"USD","in_stock":true},{"title":"Yellow","offer_id":47193299189987,"sku":"PB103","price":4.2,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":47193299222755,"sku":"PB104","price":4.2,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":47193299255523,"sku":"PB105","price":4.2,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":47193299288291,"sku":"PB106","price":4.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/7594\/8771\/files\/FullSizeRender_08ccb951-f43d-4086-b95a-b7f4abcfee93.heic?v=1758500936","url":"https:\/\/renewspark.com\/products\/18650-mini-power-bank-kit-keychain","provider":"RenewSpark","version":"1.0","type":"link"}