The blinking one is not the NG DVR. Here is what I have tried so far:
TNVC/Night Goggles DVR: I had two arrive DOA. I sent them back and TNVC/Night Goggles was investigating. Teddy from TNVC said he had figured out the issue and I think they were getting replacement batteries and chargers. So, I haven't had a chance to test the NG/TNVC DVR.
FXT DVR
There is a lot to like about this unit.
Pros: Compact, Wireless Connection to allow streaming to a phone app, affordable, and simple to operate.
Cons: Very limited battery life, and requires RC power pack not standard 5V power pack. Also, if record by pressing record on the unit, it makes the icons and reticle jittery on the recording (at least on the Hogster). This does not seem to happen if recording via the phone app, but image quality is slightly less. However, at least on my iPhone, it recorded as .mp4 vs .avi, so by the time a person converts the .avi, it will probably be the same. There is no video screen, and if you start the recording before it receives a video signal, the recording will not work. Running the DVR with the wireless function which is the default, also lessens battery time.
Lumenier DX600 DVR
I saw some really good quality footage from Bering Optics and asked them what DVR was used, and they indicated this one. I have not done any coyote recordings with this unit yet.
Pros: Battery life seems to be longer and it accepts 5V power. Has a viewing screen, but allows it to be turned off. It has a remote control, and recording quality seems good. It also has a microphone and records external audio. I've recently discovered it comes with a toggle switch that allows the unit to be off, and by pressing the toggle, as long as the record switch is in the right position, the unit turns on, and starts recording automatically. It takes about 5 seconds from the point of pressing the switch to recording, but it takes no more user interaction.
Cons: No streaming, and comes with a very long video cord. I tried finding a replacement cord and quit trying after 2 different shorter cords off Amazon didn't work.
The idea of running dual power from a battery pack to the DVR and scope is something I have contemplated as well. Dual chargers tend to be 20,000 mAh or higher capacity so they tend to be fairly large. Anker has a 13000 mAh dual and Aukey has a 10000 mAh dual and then there are some smaller off brand ones as well that are a little smaller. This should work with the 2nd DVR, but you get to the point of how many wires does a person want going everywhere.
Another potential consideration is the Hogster comes with dual power/video cable since they share the same port in the scope. I have a question in to Bering Optics about this, but when running external power and doing video recording, I get some noise on the recording. I don't know if I have a bad cable or if this is just what happens when running power and video via the same cable.