It is worth taking care of this in advance, because subsequently the demand for the vehicles in question will increase many times, which will affect their availability and price.

Method one: more complex

• Check your router’s power supply unit or the router itself to see how many volts it supports. For example, it could be 12 or 9 volts. Power banks, as a rule, are oriented at 5 volts. Therefore, you need a voltage boost module for the result.
• Such modules can be purchased from online stores Be sure to purchase such a module with a USB connector.

DC-DC voltage converter / Photo Electron 24

• You will also need a cable for the router. You will also have to buy it separately and do some manipulations with it. Cut the cable and insert the part where the router plug remains into the module. In some cases, soldering will be required, and in others it is enough to insert parts of the wire into special connectors, as in the photo above. Be sure to pay attention to the insulation.
• After that, plug the USB into the power bank and you will see the voltage it produces on the electronic screen of the module. With the help of the rotating regulator, set the voltage needed by the router (what you checked in the first place).

When everything is configured, only then plug it into the router and wait for it to start.

Second method: simpler

This method also works if the Internet node installed at home has backup power.

As in the first case, check the power parameters (voltage and power) of your router.

• The voltage is indicated on the back of the device and can be 9 V (volts) or 12 volts.
• Power is voltage (V) times current (A).

If your internet connection is set up to use two serially connected subscriber devices, two powerbanks with USB ports or two powerbanks are required. In the case of using the first option, the battery power should not be less than the total power of the routers.

You will also need a special converter cable for the result. USB 5V/DC 9B (DC 5.5 millimeters) or USB 5V/DC 12B (DC 5.5 millimeters). Which cable to buy – 9 volts or 12 – depends on what voltage your device consumes. Accordingly, two routers require two cables.

This is what the USB 5V/DC 9B(12B) converter looks like / Photo by “Ukrtelecom”

And then everything is simple: remove the power supply unit from your router and connect it to the power bank with the purchased converter cable. In a few minutes the router will reboot and you will be able to use the Internet again.