22W 20,000mAh Low-Cost Power Bank
Print Profile(2)
Description
Considering cost and large capacity, while balancing production difficulty, this 22.5W high-capacity power bank was designed I hope everyone likes it
Detailed production steps can be found in the Bilibili video
The BOM is as follows
| Item Name | Quantity | Model | Estimated Cost |
| Mainboard | 1 | / | 10 Yuan |
| Battery cell | 4 | 5000mAH | 32 |
| Screws | 11 | M2*6 | / |
| Heatsink | 1 | 11*11*5 | / |
| Thermal paste | / | / | / |
Special Notes
- The insulation pad and middle frame need to be fixed with glue
- Battery nickel strip welding should not be too thick, not exceeding 1mm
- The print profile uses a perfect support design, if you are unsure of the parameters, do not adjust them easily you can also choose the default support version
- For 20000mAh capacity, the #3 resistor on the mainboard needs to be removed see the Taobao seller's mainboard instructions for details
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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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