How to make a Portable Rechargeable Fan /power bank

（Materials required）配件表
inner diameter 20mm plastic pipe内径20mm塑料管
Power Bank Mainboard 充电宝主板https://goo.gl/C6GdaZ
USB-A Plug USB公头 https://goo.gl/hy65ZC
Lithium battery protection board 锂电池保护板https://goo.gl/WdKb7y
18650 lithium battery 18650锂电池https://goo.gl/7LzoSE
130 Motor 130马达 https://goo.gl/FfBEA2
diameter 80mm Fan blade 直径80mm扇叶https://goo.gl/XT8HcT

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