Low-cost camping 100W high-power 30000mAh power bank with built-in light for under 70 yuan
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Description
The power bank kit motherboard and protection board cost 36 yuan on Xianyu https://m.tb.cn/h.SowGSKR?tk=iO7GfTGUKYA
Batteries from the PDD egg-smashing event, a single 4500mAh 21700 battery is about 2-5 yuan, 5 cells for 30 yuan
The casing is self-printed
Total cost within 70. Can power devices such as drones and mobile phones, with built-in lighting.
Can also be made into 60000mAh, but the casing needs to be extended, this can be adjusted by yourself
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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