Does Battery Drain When In Sleep/Lock Mode?

Question

Does Battery Drain When In Sleep/Lock Mode?

Last night I left my iPhone "on" (i.e. I did not physically shut it off) and when I checked it this morning the battery was nearly dead. I've followed all the "tips" to improve battery life (dimming, turned off location services, I don't keep it set on 3G, etc) but I'm wondering why the battery drained if it was in sleep mode.

Is there even a sleep mode on the iphone? If so, do I not have mine set? I have it set to "auto lock" after one minute and I though that was the conservation mode.

Maybe I left an application running or something??

Anybody else having this issue? Is it best to actually shut the **** thing off at night?

iBook G4, Mac OS X (10.4.11)

Posted on Aug 14, 2008 9:10 AM

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Answer 1

DCGOO

Level 3

769 points

Aug 14, 2008 9:25 AM in response to Creative Loafer

"Sleep" means on, but idle. You will still receive calls, e-mail and text when the phone is in "sleep" state. Sleep means you are not using it, and the screen is dark. If you want, you can turn it off. Then it will not do any of the things above and phone calls will go directly to voicemail. I would venture to say most folks do not power off their phone at night. But they plug it in to a charger (which turns the phone back on, if it is off).

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Answer 2

Ansuz82

Level 6

8,291 points

Aug 14, 2008 9:21 AM in response to Creative Loafer

No. Autolock is the sleep mode

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Answer 3

Ansuz82

Level 6

8,291 points

Aug 14, 2008 9:11 AM in response to Creative Loafer

Yes, the battery does drain overnight. Unless the phone is OFF then it is still running background processes.

You can disable a great deal of other services at night and only have the basic phone functionality on - no one needs 3G, Location, Push, etc while they sleep.

Alternatively you can do what most of us do - charge the phone at night.

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Answer 4

Aug 14, 2008 9:19 AM in response to Ansuz82

I am running it at bare bones as it is (all those apps are turned off) during the day. I guess I'll just remember to turn it off or charge it at night.

Oh well....

So there is no SLEEP Mode apart from the auto lock?

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Answer 5

Aug 14, 2008 9:58 AM in response to DCGOO

Yes, I usually charge it at night, but just forgot to last night. Of course with my last phone (a Razr) leaving it on barely used any of the battery at all, but the iphone is a different beast altogether.

<Edited by Moderator>

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Answer 6

rimshaker

Level 3

520 points

Aug 14, 2008 10:21 AM in response to Creative Loafer

Do you frequently see the network activity icon (spinning globe) even when you're not actually doing anything?

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