I have 2 Night Owl wireless cameras that require AC power. They are in 2 different locations so I'd rather not get even the smaller of a UPS for them as it would require 2 and seems like a bit of overkill. I have been trying to find something that would be more like an inline battery that would be charged with the AC power but would power the camera when the AC is out. I already have the NVR connected to a standard UPS, which is kind of pointless when the cameras don't have power.
Any help, tips, or advice is appreciated!