Baofeng DMR 1701 Flashing Charger

I watched a review of the Baofeng 1701 which was a few years old and the guy mentioned that he was quite disappointed because the charger was always flashing red and green when no radio was inside being charged. I didn't think much of this at the time, and when I got my own Baofeng 1701 and eventually needed to use the charger, when no radio was inserted it did not flash. The light was solid red. But now, for some reason it flashes when nothing is inside. See the video below.

 

Not sure why this has changed. I don't really mind though as I don't leave it plugged in like the reviewer I mentioned does [and that's why he didn't like it]. But yeah, it would be annoying if I did have it on standy all the time. Quite distracting beings as its a USB powered desktop charger and would have to be close to a computer of some kind. Unless I bought a much longer lead.

Anyway, it works fine other than that. Its solid red when the battery is being charged, and solid green when fully charged. No flashing. Not sure if other models flash like this when nothing is being charged.