How to power a router with power bank

So you’d get an internet while blackouts

Works for opto-fiber.

You need:

1. A tiny converter (to 5.5mmx2.1mm) you can buy off your local radio-market, or off AliExpress, in case you’re not in a hurry:

• ready-made cable, usb to dc
• just a converter
• or this one

You need the converter to be

• Outside diameter: 5.5mm
• Inside diameter: 2.1mm