Is it dangerous to unplug iPhone 5 battery while it's on and charging?

Is it dangerous to unplug an iPhone 5 battery while it's on and charging?

I want to run the iPhone without the battery and I heard that it would not boot up if the battery isn't present. So I was wondering if it was safe to unplug the battery while the phone is still on and plugged in.

Well you can't take the battery out anyhow so that doesn't matter.

Boot up? You don't even need to turn an iphone off, I haven't turned mine off in 2 years. Just flip the corner switch if you want to mute it at night.

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