Quick Answer
Ubiquiti devices can be powered using batteries; however, the specific requirements and limitations of the setup depend on the device model, power consumption, and desired backup time.
Choosing the Right Battery for Ubiquiti Devices
When selecting a battery for an Ubiquiti setup, consider the device’s power consumption and desired backup time. For example, the Ubiquiti ER-X-SFP router consumes 5-7 watts of power when running in router mode. A suitable battery bank for this device could be a 12V 10Ah deep cycle battery. To determine the total battery bank capacity, multiply the power consumption (5 watts for this example) by the desired backup time in hours. In a typical setup, a 24-hour backup would require a 120Wh battery bank.
Configuring the Ubiquiti Device for Battery Power
To power an Ubiquiti device using a battery, you’ll need to configure the device to use the battery as a power source. This is typically done through the device’s web interface. For the ER-X-SFP, navigate to the Power section and select the “External Power” option. Next, set the Power Source to “External” and configure the voltage and current limits for the external power supply (e.g., 12V 1A for the 10Ah battery bank). Finally, set the Device Power Mode to “Battery” to enable the device to draw power from the battery bank.
Powering Long-Range Ubiquiti Bridges
When powering long-range Ubiquiti bridges, such as the AirMax NanoBeam or AirMax AC, consider the higher power consumption of these devices. A 20-30 watt power supply may be required to support the bridge’s power needs. In this case, a larger battery bank (e.g., 12V 20Ah or 12V 30Ah) would be necessary to achieve a 24-hour backup. To determine the required battery bank size, multiply the power consumption of the bridge by the desired backup time in hours. This will ensure reliable operation of the long-range bridge in areas with frequent power outages.
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