DIY 5V mini UPS with 9000mAh

Hi guys!
In this episode I will show you how I made a 5V mini UPS. It took a long time to finish this project because I wanted to create a good circuit to protect the battery.

PCB+Assembly from $2, Get JLCPCB $54 new user coupon：https://jlcpcb.com/RHS
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Download gerber file: https://files.fm/f/fvn25kbrv
Schematic: https://imgur.com/a/RRUq9Ii

Components list:
Plastic case 125x80x32mm: https://s.click.aliexpress.com/e/_DdgsG7n
TP4056 module: https://s.click.aliexpress.com/e/_c3BSjJ2j
MT3608 boost converter: https://s.click.aliexpress.com/e/_Dduz68D
NCR18650B cells: https://s.click.aliexpress.com/e/_AmRDya
1S battery indicator: https://s.click.aliexpress.com/e/_c45HSqDP
Small switch 10x15mm: https://s.click.aliexpress.com/e/_c3zTnXT9
Capacitors 10V 4700uF: https://s.click.aliexpress.com/e/_Dkr7FdX
USB port: https://s.click.aliexpress.com/e/_omiFIEH
5V double relay: https://s.click.aliexpress.com/e/_DdnGWW9
1N5820 3A diode: https://s.click.aliexpress.com/e/_DkTOM4b
1N4007 diodes: https://s.click.aliexpress.com/e/_De1YK7D
Fuse holders: https://s.click.aliexpress.com/e/_Deo0Cnb
IC heatsink 9x9x12mm: https://s.click.aliexpress.com/e/_Dl5vxDV
LED (R-G Fog Anode): https://s.click.aliexpress.com/e/_c4bUMS9L

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