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No, that is not how it works. The "multitasking dock" is really just a "recently used apps dock." Just because an app appears there doesn't mean it is consuming processing power or battery. There is no need to manually close apps from there in order to conserve resources. The OS handles it intelligently.


If you open the app that is currently in the dock (pressing twice the home button) it will resume from where it was. If you quit it in the dock and then open the app it will restart from the begin. I assume it's "multitasking".
 
If you open the app that is currently in the dock (pressing twice the home button) it will resume from where it was. If you quit it in the dock and then open the app it will restart from the begin. I assume it's "multitasking".

Yes, but that doesn't mean it was doing anything while in the background. The vast majority of all apps are simply frozen in the background, not consuming any resources. There are a handful of very special exceptions (background audio, background location, VoIP, and task completion), which the OS closely manages and automatically kills any app running under one of those exceptions that consumes too many background resources. So the point I was trying to make is still valid: the user should never have to manually kill any app in an effort to conserve battery. The OS handles it for you.
 
bluetooth off
3g off
location services off
wifi off
screen brightness at 1/4
 
No, that is not how it works. The "multitasking dock" is really just a "recently used apps dock." Just because an app appears there doesn't mean it is consuming processing power or battery. There is no need to manually close apps from there in order to conserve resources. The OS handles it intelligently.

No, you're not correct.
 
It doesn't matter how great a phone battery is, the more you use it, the quicker it depletes. There is a strategy as mention here already to get the most out of your battery, but as long as you're near a charger, that won't be necessary.

When I'm at work, my iPhone is usually in the dock, operating like a normal phone so when I go out and carry it around I have enough battery to play a quick game while waiting for the train or a client.
 
No, you're not correct.

Unless the app does background audio, background location, VoIP, or task completion, then it CANNOT run in the background. The OS will not let it. And apps that do one of those limited things listed above are monitored closely by the OS and are killed automatically if they start to consume too many resources while in the background. A properly designed iOS app should never need to be manually killed. Have I ever manually killed any apps? Yes, but it has always been because of a bug in the app that caused it to misbehave when resuming from the background.
 
Unless the app does background audio, background location, VoIP, or task completion, then it CANNOT run in the background. The OS will not let it. And apps that do one of those limited things listed above are monitored closely by the OS and are killed automatically if they start to consume too many resources while in the background. A properly designed iOS app should never need to be manually killed. Have I ever manually killed any apps? Yes, but it has always been because of a bug in the app that caused it to misbehave when resuming from the background.

Any app running in the background - or being held in a stasis mode in the background - will consume more resources than if it was not opened at all. That means that having apps in the background (regardless of their type) will invariably use more battery life than not.

The OP asked for battery saving tips. If you want to save your battery, close out background apps. Let's all try to stay clear of the reality distortion field...
 
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