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I currently have the power magic pro. Would this work with the PMP? It would be nice to run the battery pack until it dies, then the PMP would pull from the car battery.
I had the PMP and switched to a battery pack.
I suggest that you use one or the other, not both at the same time because the PMP has a max output of 2amps (according to the PMP manual), the PMU will draw 9+amps (5 amps in 12v outlet). Mins vs hours to charge the PMU.
The PMU is a Uninterruptible Power Supply (UPS), it's going to draw power all the time from the PMP to charge itself and power the device. The PMP will give out first once it detects the car's low voltage, before the battery pack does.
So it's not possible for your situation to happen "It would be nice to run the battery pack until it dies, then the PMP would pull from the car battery."
I have a blackvue DR750S-2 channel, by the time I commute to work (20+ mins) my battery packs is charged a good amount. The camera will run 9+ hours in my dashcam's parking mode configuration.
Thanks for the detailed response. I would most definitely just use the pmu over the pmp. The pmp never goes into parking mode since the voltage is lower in the winter and sometimes in the summer but only stays on for a little bit so by the time I get back to my car its usually off and not able to tell me if an impact was occurred, or turns off right when I open the door. I could set the pmp to the lowest volt setting but that's right above a dead battery....
Your situation of the PMP not staying on long enough when it's cold, was the exact reason for getting my battery supply. I live in an area where the winters can frequently get into the negatives.
I figure beside the peace of mind knowing my dash cam will always be recording, it will also do less wear and tear on the battery. I really didn't want to be stranded because of a dead car battery in winter.
I have my DR750S-2 channel, and the battery supply for over 1 year now and never had a major problem with either of them, the dash cam is pretty much running 24-7, the battery life is more than sufficient and highly dependable.
Glad to help, I had the same exact though as you when I was researching my own solution to this problem.