Interesting feedback, thanks. So more power used but just for calls and sms? You mean the phone uses more watt/dbm for cellular transmission? I always thought that 3G switch is just the switch for enabling 3G standard for mobile broadband, therefore if you leave the switch on but leave cellular data off, it will automatically disable the mobile broadband radio.

I'll look around and see what I find. But for real world test, has anyone tried leaving 3G on but cellular data off and see what happens to the battery?

Shall repost some of tips for battery-saving on the iPhone (based on my previous experience with iPhone 3G and now the 4):

1. Turn off 3G if you don't need it
2. Turn Location Services off if not required
3. Screen brightness at minimum (as long as your eyes are comfortable with it)
4. Push notifications off
5. If you have any email accounts, set fetch to Manual
6. Close any apps running in the background

Now this was really stretchin it. I wonder how u guys get tp leave location services on
And yet get to hut two days usage???

LOL. my record is 4 days with everything off and just normal 1 hour call person + some SMS.

For me, i do not turn on things i dun need to use. i will only turn it on when i need to use..

@slickz, HSPDA and GSM is 2 total different tech, of course it uses more watt/power to transmit and receive. i wondering how much power last for CDMA now lol if we ever getting 4G

Well this is with these
settings

3G off
location service - ON ( this will not drain your battery if you don't use the apps )
notification - ON ( its just a beep to remind you it doesn't constant drain batt too)
Mail - Fetch - Manual
Facebook Push - OFF ( but manual checking > 20 times for updates and viewing alerts )
MSN - not sign in

been surfing and chcking for mail ( 3 accounts ) rather frequently >10 times
some gaming. completed all levels of angry bird lite.
light surfing .

calls .. ~ talk time ~ 1 hour or so.

This post has been edited by icedlink: Oct 9 2010, 02:09 AM


Attached thumbnail(s)

This is my battery level from 100% to 19% left

3G on
Wifi off
Location off
Mobile data off
Calls and sms



This post has been edited by email2one: Oct 9 2010, 06:31 AM

Wow really strecthing. cannot enjoy to the fullest unless always bring the charger or backup battery.

yea that the point! why would u wanna buy an iphone for not using it and refraining yourself from wasting the battery.. LOL! no offence but mine can only last max 2 days.. with my daily routines such as apps.. social networking. or maybe checking mail.

---

Added on October 9, 2010, 11:21 amGuys 1 more question! what i was wondering is.. how long do i nid to charge the iphone4 for the first time?

This post has been edited by AlexGTX: Oct 9 2010, 11:21 AM

This is my usage :-



Notifications set to > ON
Location service set to > ON
Cellular Data and 3G set to > ON
Played games,Surfed the internet(using 3G),Checked email,SMS and Calls..

Is this normal or abnormal?..

Thanks

Your one is normal in fact more lasting than mine! I off location for some apps and notification turn on but wifi turned off when not in use.. Funny to say mine only last two days max with games and apps play all night long.

I do not play games and apps all night long..I only play them at night before going to bed

I guess your battery usage is normal too since you play game and apps all night long and it lasts for 2 days...

Thanks

wow.. u guys got very great battery...
mine so poor... 7months 3gs..
only last 1day only..

average usage, call 10minutes, sms 30-40, game zombie farm 5minutes, wifi 10minutes.



This post has been edited by megahertz: Oct 9 2010, 04:48 PM

me ip4 last exactly 1 day on full charge lol usage are heavy on apps heavy wifi heavy email few sms few cam pics almost no calls

oh i also just realised the more u use it, as in more charge cycles, the thing actually holds the charge longer. just based on what i feel everyday using it.

You enabled your 3G all the time and it lasted for 5 days?

---

Added on October 10, 2010, 6:46 pmYours is pretty normal since your usage is low. Did you enable 3G all the time or you enabled it only when you wanted to use it?

This post has been edited by fuiyo: Oct 10 2010, 06:46 PM

i just want to know what is the point of turning on 3G if u turn mobile data off? might as well turn off 3g rite?

I've never disable my 3G network till now..

Thanks

Yours is quite good and reasonable.
I still doubt that the person above who enabled 3G all the time could get his phone to last for 5 days

Oh,cool..

His one last longer cause he tuned OFF his Location,WiFi and Mobile Data..

This post has been edited by bizness: Oct 10 2010, 08:01 PM

Those don't affect much. I have friends who did the test before. They failed to reach 5 days. Maybe he lowered the brightness like A LOT? Hmm...