Charging ding wakes me up

Both charges came with the phone. Even a slight power interruption would trigger the touch-on lights I have in my dinning room. They go on sometimes in storms when there is the slightest glitch. I would say this is not the case. There are a lot of people complaining about this issue. Two hours after charging, every night sounds like an unlikely coincidence to be a power glitch. Central AC turning on (or off) maybe? If so, Apple needs to add a charging time delay for power glitches. Maybe 500mSec.

Plugged in at 10pm last night. Got a ding at 11:17 pm and woke me up.

No alarm clocks, microwave or stove clocks flashing to indicate a power interruption.

No touch-on/off lights in house on.

I wonder is these new digital power meters outside the house are transmitting signals to the electric company and the iPhone glitches every night at the same time. Power interruptions are very rare in my neighborhood. All underground lines and close to the substation.

There is a trick to not get a ding if the camera is on, but that doesn't work after the screen sleeps. Maybe I can set it to never sleep.

But I would sure like to know how how long an interruption has to be for the iPhone detects it. It must be fast. (and they should change that!) When first plugging in, I can plug and unplug within a half second and get no chime. But once plugged in for a second, and the ding sounds, I cannot get it not to ding by unplugging and plugging fast.

I have an emergency power/car starter that has a USB output. I will try charging with that.

and I will also try the "Silent Plug" app.

Although, in both cases (leaving camera on or Silent Plug app), it seems you have to set lock screen time to never.

So I guess that is a work around.

Add another to that: Start the Garage Band app.