Battery Life... why it's really weak power

Hi,
The battery life of my iPhone 3G doesn't allow me to get it work for a all business day (it's work just about 8 hours).
I read a lot of post about this problem and have few comments about them:
- some tells it's push which drain the battery: I didn't notice the same on Iphone V1 even when push is on...
Note: Even if push is a problem for battery life, i don't understand why? Balckberry have push mail, calendard, contact and are working all the day...
- some tells it's 3G; but i have a similar issue about battery life even when i turn 3G off...
Note: A lot of newspaper talked about the Iphone 3G autonomy and tell that battery life of iPhone 3g is better than other 3G device...
In my point of view there is a really big issue concerning the battery; I can't keep a phone which switch off during my day...
LEB

Wan Chai Man wrote:
The "hints" for saving battery power are:
*Turn off 3G
*Turn off wifi
*Turn off location services
*Turn off Push email
*Turn down the brightness of the display
Its not only iPhones but also iPod touch that ***** up juice... battery life has gone down significantly with the 2.0 software.
Hopefully there will be a fix soon:):)
It would be pointless buying the iPhone 3G with all these features switched off.
But if some are having these issues until there is a fix then it's probably good advice.
However mine seems OK with all these features switched on.
I top up mine each evening and keeps me going on a day to day basis.

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Charge Remaining (mAh):       4308
Fully Charged:                           No
Charging:                                   No
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Disk Sleep Timer (Minutes):                          10
Display Sleep Timer (Minutes):                     10
Wake on AC Change:                                     No
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Wake on LAN:                                                  Yes
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DarkWakeBackgroundTasks:                        1
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PrioritizeNetworkReachabilityOverSleep:   0
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Display Sleep Uses Dim:              Yes
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I have had an iPhone 4 for a little over two years now and feel like recently, my battery is dying so fast.
When I go out for the day it always dies before I get home, what I think it is, could be that I take a lot of pictures and use many picture apps, but I don' think that it has always been this bad. NO matter what I do, when I go out to shoot at the park, it dies within a few hours. I hardly use it for other things besides that and it still dies. Yesterday when I left the house at 12, and came home at 5, it was dead.
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Thank you, I am going the Apple store today for a genius appointment. L
ast night I let it die, and charged it to 100%, then I unplugged it and went to sleep. at 530am it was at 98% - I used it quite a lot for texting, and taking and editing pictures and use of the internet. it just died at 1:30pm, so it lasted exactly 8 hours.
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hi guys
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<Edited By Host>

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Internal damage from fall or loose connector. Take it to
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The header says it all:
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Battery Life... why it's really weak power

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