Pocket Power Bank 5000mAh|Portable Power Bank|Mini Power Bank|21700 Battery|22.5W Two-Way Fast Charging|Screwless
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Description
I crafted a mini portable power bank using a 21700 battery, achieving a 5000mAh capacity and supporting 22.5W fast charging. Details are as follows:
| Cost | Mainboard: $15
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| Design Highlights | Structural features: Snap-fit, no screws, heat dissipation vents, miniaturized, compatible with spring clips and spot welding Closely integrated with the mainboard |
| Production Notes | The enclosure should be 3D printed using PETG material; PLA cannot withstand the internal temperatures Lithium battery soldering: Use a spot welder, or a file and a high-wattage soldering iron Use 18AWG wires |
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Mainboard purchase link: Click here
Battery purchase: Search on Pinduoduo, I used the seller below
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 - remixes of this object, and 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.
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