Sonoff dongle-e repeat signal zigbee2mqtt

Hi guys. I connected the Sonoff dongle-e to Home Assistant and I can correctly synchronize all my home automation devices, most of which are used for the home alarm. some devices go offline because they are very far away like in the garage. I wanted to know if there is a way to repeat the signal with another Sonoff stick by connecting it to a power bank so that if the power goes out, everything works. Thank you

There’s router firmware for the CC2652 based sticks, not sure if one exists for the E though.