How can I use a wireless repeater where there is no power?
If you are directly inserted 220V, you need to install an inverter in the battery, the 12V DC into 220V AC, and then plug it directly.
If it is not 12V, it is usually necessary to add a conversion circuit, such as 12V, 9V, etc., for wireless repeaters.
Where there is no power supply, if the wireless repeater is 12V, it can be powered directly by the 12V battery.
