Hi guys! I hope you are doing well.
I made a few modifications to this UPS and I will share them with you in this video. The UPS will switch to battery power much faster now and I used a new PCB for the relay circuit. I received it from JLCPCB. It will simplify the build a lot, so if you want to build your UPS with this PCB, just upload the gerber file to JLCPCB website and place the order.

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.

A big THANK YOU to all my patrons, especially to: Richard Fjellvang, David, Max Rice, Razvan Alexandru, Jacek, techge, Anthony Ortenzi.

If you are a nice lad and want to donate to me on Paypal, here you go: [email protected]

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download gerber file (updated with 4700uF capacitors): https://files.fm/f/tf6nwue48

List of components:
20W 220RJ resistor: https://s.click.aliexpress.com/e/_Dk5...
4700uF 25V capacitors: https://s.click.aliexpress.com/e/_Dkr...
1N5404 diodes: https://s.click.aliexpress.com/e/_ANVBhF

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