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  "path": "/en/3d-model/gadget/18650-usb-c-power-bank",
  "publishedAt": "2026-05-23T20:26:48.000Z",
  "site": "https://cults3d.com",
  "tags": [
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  "textContent": "DIY 18650 Power Bank – USB-C Battery Pack | 3MF + F3D +STEP\n\nCompact rechargeable power bank designed for 3x 18650 Li-ion cells.\n\nThis DIY battery pack combines a clean modern design with easy 3D printing and simple assembly.\n\nPerfect for makers, electronics enthusiasts, and anyone wanting to recycle 18650 cells into a functional portable charger.\n\nFeatures :\nCompact and clean design\nUSB-A output\nUSB-C charging\nDesigned for 3x 18650 cells\nEasy assembly\nVisible battery layout\nScrew-mounted enclosure\nReal tested prototype\n\nIncluded Files :\nSTEP file\nF3D source file\n3MF file\n\nRequired Material :\n3x 18650 Li-ion cells\n1x USB-C power bank module :\nhttps://tinyurl.com/3wkxx7r9 (Aliexpress)\n1x 3-slot 18650 battery holder :\nhttps://tinyurl.com/sjs9azwd (Aliexpress)\n4xM3 screws \n\nPrinting Recommendations\nLayer height: 0.2 mm\nPLA / PETG recommended\n15–20% infill\n\nSimple soldering required.\n\nSafety Notice\nUse only identical 18650 cells with the same charge level.\nAlways use quality charging modules and assemble electronics carefully.\nThis project is intended for users familiar with basic electronics and Li-ion battery safety.\n\n\nDisclaimer : \nThe power bank shown in the photos is a real assembled and functional prototype. I cannot be held responsible for any damage, injury, battery failure, fire, or electronic malfunction resulting from the assembly, misuse, or improper handling of this project. Use Li-ion batteries at your own risk.",
  "title": "18650 USB-C power bank"
}