DIY UPS with 12V and 19V (for Asus router) part 2/3

Hello guys, I finally finished building the UPS. I hope it will be useful. It has 2 outputs of 12V and 19V and it's very powerful.

Feel free to visit https://jlcpcb.com to order professional PCBs at low prices for your projects. $2 - 2Layers 5pcs; 4&6Layers starting at $5.

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Full schematic: https://i.imgur.com/aRKuvr5.png

List of components:
Project box 200*120*75mm: https://s.click.aliexpress.com/e/_Ddh...
HG2 18650 3000mAh cells: https://s.click.aliexpress.com/e/_ArzHnn
18650 cells holders: https://s.click.aliexpress.com/e/_Dem...
4S battery indicator: https://s.click.aliexpress.com/e/_Des...
4S BMS with balance: https://s.click.aliexpress.com/e/_9gEfjB
Rocker switch: https://s.click.aliexpress.com/e/_98sHdO
12V relay: https://s.click.aliexpress.com/e/_Dmy...
Heatsink 20x14x11mm: https://s.click.aliexpress.com/e/_De0...
Mini360 buck converter: https://s.click.aliexpress.com/e/_DCr...
Fuse holders: https://s.click.aliexpress.com/e/_Deo...
1N5404 diodes: https://s.click.aliexpress.com/e/_ANVBhF
2200uF 25V capacitors: https://s.click.aliexpress.com/e/_Dkr...
XL4015 buck converter: https://s.click.aliexpress.com/e/_DdP...
XL4015 CC/CV charger: https://s.click.aliexpress.com/e/_DFd...
150W boost converter: https://s.click.aliexpress.com/e/_9QUqvN
5.5x2.1mm jack (male, 22AWG): https://s.click.aliexpress.com/e/_Dmq...
5.5x2.1mm female connector: https://s.click.aliexpress.com/e/_DC8...
4.0x1.7mm jack: https://s.click.aliexpress.com/e/_DB6...
4.0x1.7mm female connector: https://s.click.aliexpress.com/e/_Dnl...
M3 standoffs 300pcs: https://s.click.aliexpress.com/e/_Dex...

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