DIY router UPS based on USB power bank

Someone is playing in survival mode while I’ve been living this life in Ukraine for the past few years. I created this 'UPS' from available details and testing. There are updates required, such as adding a diode to prevent microvoltage on the mass and a capacitor to prevent the modem from rebooting in a triggered state.

Attached is the photo, and the updated full article can be found here:

Nov 07 · 5 weeks ago · 👍 RubyMaelstrom