DIY Mini UPS for WiFi Router V4.0 || Use Powerbank as UPS for your WiFi router || Work From Home

Published at : 23 Dec 2025

#diyupsforwifirouter #12VMiniUps #powerbankUPS

In this video, I will show you how to make a mini UPS for WiFi Router by using a Power bank. The UPS will automatically switch from mains to power bank during the power failure. A 12V relay is used for the changeover, which may cause the router to reboot once because of the slow switching. Your power bank will take around half a second to power up.

Project documentation: https://www.instructables.com/DIY-UPS-for-WiFi-Router-V40/

Download the 3D printed .STL file: https://www.thingiverse.com/thing:4886349


Components used :
1. Boost Converter LM2587S Module : https://bit.ly/3vhX7NP

2. 12V Relay : https://amzn.to/35iVrsL

3. Micro USB Module : https://amzn.to/3iGggGC

4. 5mm Red LED : https://amzn.to/2RR07Tu

5. 5mm Green LED : https://amzn.to/2RR07Tu

6. 2 x 5.5mm DC Jack : https://amzn.to/2SoH6s1

7. 0.28" Volt Meter Display : https://amzn.to/3gN81WH

8. 2 x 1N5822 Diodes : https://amzn.to/3pRti5q

9. Resistor - 330 Ohm : https://amzn.to/2RTCyJL

10.Resistor - 580 Ohm : https://amzn.to/2RTCyJL

11.22 AWG Wires: https://amzn.to/3cIqzpL

12.Heatshrink Tube : https://amzn.to/3vlX1EL

Tools Used:
1. 3D Printer: https://amzn.to/3pvv1NP

2. Soldering Iron: https://amzn.to/3csUW3f

3. Wire Stripper: https://amzn.to/3pxPYr9

4. Hot Glue Gun: https://amzn.to/3irrsqu

5. Hot Air Blower: https://amzn.to/3pzzSh2