Dual 18650 Power Bank – 22.5W USB-C PD QC4+
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Description
This 3D-printed enclosure houses two 18650 cells alongside a compact and cheap USB-C fast charging module, turning readily available batteries into a fully-featured power bank. The design prioritizes repairability — cells can be swapped in seconds without any tools. A side-mounted button activates a built-in LED display showing the current battery level, so you always know your remaining charge at a glance.
The integrated module supports up to 22.5W output with a wide range of fast charging protocols including PD3.0/PD2.0, QC4+/QC4/QC3.0/QC2.0, AFC, FCP, SCP, SFCP, VOOC, and PE2.0/PE1.1. On the input side it handles PD3.0/PD2.0, AFC, FCP, SCP, and PE1.1, with USB Type-C Try SRC support and BC1.2 DCP / Apple / Samsung compatibility. Charging efficiency reaches up to 95%.
Assembly requires 2× M1.6×8 screws for the board and 4× M2.5×16 screws with 4× M2.5×L6×D3.5 heat-set inserts.
AliExpress links for all components (module, dual 18650 holder, screws, inserts) :
18650 holder : https://aliexpress.com/item/1005009209614011.html
Board : https://aliexpress.com/item/1005008762570366.html
Screws : https://aliexpress.com/item/1005005204317611.html
Inserts : https://aliexpress.com/item/1005008963974563.html
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including, but not limited to, publishing derivative works outside the Makerworld platform or hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money or collect fees. Subject to the above restrictions, derivative works may be published only within the Makerworld platform, and all such derivative works must be licensed under the same SDFL‑C license, without modification or additional terms. You may download the digital versions of this object, 3D print it, and display images, videos, or usage demonstrations of 3D printed versions of the object on personal social media platforms or Makerworld official channels, provided that no digital versions of the object are shared or distributed.
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