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Do App killers benefit Android's battery or hamper it?

post #1 of 9
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Per thread title, I am wondering if programs such as "Advanced Task Killer" actually benefit your battery life.

Thanks. (Detailed replies with data supporting evidence will help.)
     
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post #2 of 9
No it does not help battery life, unless you have an app that is causing problems, and needs to be killed

here is a snipet from droid forums.

Quote:
The Android OS does not work like a desktop operating system. On a desktop OS, like Windows, Mac OS X, or Ubuntu Linux, the user is responsible for closing programs in order to keep a reasonable amount of memory available. On Android, this is not the case. The OS itself automatically removes programs from memory as memory is needed. The OS may also preload applications into memory which it thinks might soon be needed.
Having lots of available empty memory is not a good thing. It takes the same amount of power to hold "nothing" in memory as it does to hold actual data. So, like every other operating system in use today, Android does its best to keep as much important/likely-to-be-used information in memory as possible.
As such, using the task manager feature of SystemPanel to constantly clear memory by killing all apps is strongly NOT RECOMMENDED. This also applies to any other task killer / management program. Generally speaking, you should only "End" applications if you see one which is not working correctly. The "End All" feature can be used if your phone/device is performing poorly and you are uncertain of the cause.
See the full thread here Task Killers
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post #3 of 9
Depends on how you use it. If you have an app that likes to run in the background (I had a game that did this) then you can kill it. If your constantly any and all apps, then it will hurt your battery (when I stopped doing this, I gained about 4 hours of life). Basically, only kill apps you know are safe to kill.
    
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post #4 of 9
I have an HTC Hero. I have noticed that for apps loaded into memory do not drain the battery any differently than having no apps loaded into memory. What drains the battery is usage. So if you have an app that is 'using' your phone your battery will need to be recharged more often.

Same thing as not allowing your phone to go into sleep mode. Having loaded apps in the phone and placing it into sleep mode drains the battery the same as not having loaded apps in sleep mode.

Schoatt33 is correct.
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post #5 of 9
Yes and no

the app might be draining battery if it is periodically becoming active AND small enough to stay in memory

otherwise Schoatt33's explanation is correct
    
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post #6 of 9
When I picked up my Evo, the HTC rep was in the store. We spoke about app killers and he said they are not needed. He recommended Watchdog lite. When you open the app, u see waths running but as stated above, apps run but use zero cpu. they are kinda suspended. Suppose your browsing the web, you answer a call, the web page stays active in the background. You can pull up Watchdog and kill it. Closing the program works too... just with watchdog, u know it's closed.
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post #7 of 9
I never use a task killer.
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post #8 of 9
    
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post #9 of 9
i'm on my second android device (HTC Evo 4G to Evo Shift 4G) and i don't bother with task killers unless i know something is eating resources, in that case android has a simple built in task manager that lets you kill apps.

my understanding is before 2.2 (FroYo) task killers did help a little bit but 2.2 took care of any issues relating to resource management
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