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Android phone using extreme amounts of battery?

post #1 of 30
Thread Starter 
So it is the first day of school today and I am sitting at the library surfing the net. Over 1 hour, my Galaxy S2 drained 30% of battery. Brightness is set to 25%.

Why is it draining so much? Even my Inspire didnt drain as much and that had a much lower capacity battery.

Any settings I should change or something?

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post #2 of 30
I don't know what its normal battery life should be but I'm sure the dual core CPU will affect the battery life quite a bit over your Inspire.
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post #3 of 30
My S2 has awful battery life too, I put it down to the screen in all honesty. I'm even running a custom ROM with all sorts of memory tweaks and enhancements but it's still power hungry, at least compared to my iPhone 4 anyway.
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post #4 of 30
Thread Starter 
Quote:
Originally Posted by ImmortalKenny View Post
I don't know what its normal battery life should be but I'm sure the dual core CPU will affect the battery life quite a bit over your Inspire.
Yeah but look at the reviews for this phone online. There are no battery life complaints. Look at the Inspire and half of the complaints are about low battery life.

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post #5 of 30
my gs2 has lasted the working day (left the house 8:30am, got in and 7pm) and its still on 23%. Ive been on facebook/ebay all day and 45 minutes web browsing on my lunch,
got 3 email accounts syncing every 10 minutes and have been texting all day and made at least 2 15 minute phone calls and a bunch of smaller length calls.

must be luck of the draw
    
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post #6 of 30
My room-mate had this problem. He got a Thunder Bolt and it has the same issue.

:/
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post #7 of 30
The screen and dual core both will drain battery on that phone. If you still think its sub par you could download battery calibration from market (forget if it has to be rooted or not) and completley drain battery. Then charge to 100% with the program open and when it beeps hit calibrate. It will delete the batterystats.bin and create a new one shortly after.

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post #8 of 30
Here is a nice write up you can read through as well. http://www.overclock.net/showthread.php?p=11558471

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post #9 of 30
Dual core does not increase power drain people, even on a low tech dual core like the Tegra 2, much less a new high tech processor in the SGS2.
    
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post #10 of 30
Yes that is true. While web browsing and opening apps they should load faster with a duel core thus using less power/heat to do the task.

But that isn't what I was referring to. I was referring to the fact that with duel cores comes, HD/3D video. Encoding, decoding, compression, all which are CPU intensive. This leads to higher res screens (larger screens as seen in tablets) which use more battery. Also more CPU intensive apps and mobile pages (along with more demand for mobile games). You don't build and implement new tech for old uses. That is my point.

I guess the way I view it is the more capable the phone, the more power it will use. The more capable your PC is, the higher the recommended PSU wattage is.
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