Is the data initialized when the iPhone battery is replaced?

I'd like to replace the iPhone battery, can the data inside be fully initialized?

I usually don't have to unplug the battery at all, so the power supply will continue.

If I unplug it completely, the power supply will not be able to be supplied, so data will be lost or initialized.

2577 2018-11-22 Gentleman

The data won't go away even if I unplugged the battery
You can't turn it off

Gentleman 6 years ago 0

I changed the battery, and the data was all in there

Gentleman 6 years ago 0

You might want to reaper it, so you should back it up

Gentleman 6 years ago 0

Backup is required
I don't know what to do at the center

Gentleman 6 years ago 0

If possible, it's better to back it up

Gentleman 6 years ago 0

Thank you.
I'll back it up

Gentleman 6 years ago 0