Iphone 7 is it normal to go down when off?

PHK

techquest wrote: »

If the device is powered off, nothing is running that could account for a power drain. Some loss of power over time is normal but the drain mentioned by the op is extreme and can only be explained by a physical short in the phone causing it to consume the power.

This isn't strictly true for two reasons.

iPhones and the majority of other phones are never completely off. (This is why you can turn them on using a simple push button, rather than a mechanical switch, why alarms can work when off, how it can detect when the charger is plugged in and why phones can be set to auto-turn off and start up) However, the handset should use significantly less power when "off" as much of the device is suspended (eg modem, screen, audio) and the SOC is set to (effectively) 0 clock speed.

Secondly, batteries lose some charge when not in use. (The rate of this depends on the charge level, this is why new batteries are around 50% charged as that level suffers fewer problems when stored)

However, the general point is correct. You wouldn't expect an switched off phone to lose a significant percentage of charge in a few days.

techquest

PHK wrote: »

This isn't strictly true for two reasons.

iPhones and the majority of other phones are never completely off. (This is why you can turn them on using a simple push button, rather than a mechanical switch, why alarms can work when off, how it can detect when the charger is plugged in and why phones can be set to auto-turn off and start up) However, the handset should use significantly less power when "off" as much of the device is suspended (eg modem, screen, audio) and the SOC is set to (effectively) 0 clock speed.

Secondly, batteries lose some charge when not in use. (The rate of this depends on the charge level, this is why new batteries are around 50% charged as that level suffers fewer problems when stored)

However, the general point is correct. You wouldn't expect an switched off phone to lose a significant percentage of charge in a few days.

The iPhone has three modes Awake Sleep and Off.

You power the iPhone off by pressing the "Sleep/Wake" button for a few seconds and then sliding the slide control that appears. In this mode the iPhone is completely inactive, it's off. It is not in sleep mode at this time and it does not receive calls, sound alarms or perform any other action until you turn the phone back on. I assume therefore your post is referring to sleep mode which the iPhone is probably in at most times when not being actively used

As for normal battery power consumption over time then yes that was what I mentioned.