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2.2.1 = TERRIBLE battery life!?

Eminemdrdre00

Eminemdrdre00

macrumors 6502a
Original poster
May 10, 2008
699
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I thought it was just me, but then I saw 2 tweets this morning from iJustine and Leo Laporte.

ijustine Convinced the latest iPhone firmware update is killing battery life. Don't deny it apple. Mine actually used to be good until I updated!

LeoLaporte @ijustine My iPhone battery life has dropped dramatically, as well. Loses half its charge overnight but only since 2.2.1.
Click to expand...
I have noticed the same thing, but I havent seen many people talking about it here. Anyone else having terrible battery life since the latest update?
 
seems the same to me! if i don't use the iphone for anything but calls it goes a couple of days, but playing around with GPS/games/tweeting non-stop and battery life becomes terrible again.

but in answer to your question, compared to 2.2 i feel that my battery life is the same.
 
My battery is also normal. Try resetting up your email accounts. There may be some sort of hang going on.

Doesn't the tweeter apps use GPS to track your location? That could be running your battery down.
 
I was going to a 3rd day before charging.

Obviously, once I turned on Push for Google Contacts and Calendar my time went down to 2 days.

But no, I didn't notice any changes after the 2.2.1 upgrade.
 
No change for me. But usually put it on the charger most nights or at least turn if off during the night.
 
Still fine here

The battery meter still drops to the same place by the time I'm going to bed, which is a sliver down from full. If it has changed, it's miniscule. There must be some setting certain folks have that is causing the problems.
 
Seen mine go down to 3.5 hours usage, 3.5 hrs standby from 100% to <10% recharge sign. An evening charge is fine - but my phone isn't even making to the afternoon before needing a charge, and taking so long to charge too. 2 charges a day = more cycles = worse battery performance.

Spoke to Apple, they said do a backup, do a restore to factory defaults, see what the usage is like, then bring it in. It's under warranty, so they'll swap out the iPhone with another one (hopefully new battery/new/refurb with new battery), as long as Genius appt sees it as hardware. unless they know 2.2.1 is software related problem. but to be honest, i'd see them happier to swap out the hardware, than say that the 2.2.1 firmware was the issue, at least for the moment, unless an update is coming if there are problems with 2.2.1

Might be worth jumping on the offer, just for a battery with a few hundred less cycles on it, whilst still on warranty.
 
Eminemdrdre00 said:
I thought it was just me, but then I saw 2 tweets this morning from iJustine and Leo Laporte.


I have noticed the same thing, but I havent seen many people talking about it here. Anyone else having terrible battery life since the latest update?
Click to expand...

I've had the same problem. I recently got a replacement iPhone for the battery life (among other reasons) but the battery life is still not as good as it was when using 2.2.
 
Aj2488 said:
I've had the same problem. I recently got a replacement iPhone for the battery life (among other reasons) but the battery life is still not as good as it was when using 2.2.
Click to expand...

You're doing something wrong then. My battery is exactly the same.
 
While Im glad not all of you have this problem, it sucks for me and the others who do have it. Im not doing anything differently, but my battery life is noticeably shorter. After a full charge last night before bed, I woke up to it at about 75% this morning. I'll try a factory restore, but when I restore from a backup, wont this just cause the problem to happen again?
 
Mine has gone down. I have made some changes since though. I used to have everything pushed to me on MobileMe on 2.2 and battery life was great, now I have cancelled MobileMe and use Google Sync push for contacts and calendars and Gmail is set to fetch every 15 mins. Whether it is the combination of pushing and fetching I don't know? I am hoping Gmail offers push mail soon though, so we will have to see then.

Although I have started using Twinkle more on my commute in so that could be part of it :eek:
 
My battery life is the same as before, but the difference may be that I don't use push and have email set to manual fetch. It always seemed that fetch killed the battery absurdly fast, so I never used it. With light usage and manual fetch I normally get 3-5 days of use. Turning on push killed it in under a day (I never tried it on 2.2.1 though).
 
Mine is if anything better, i get like 2 hours more of battery life.
I used to get about 7 hours of usage and 1 day of standbye now i get like 8-9 hours of usage and 1 day and 12 hours of standbye.

I have 3G off, wifi on, push off, location services on.
 
I'm just frusterated because I'm doing the exact same things I've been doing. Haven't changed any settings, but battery life is much worse =\
 
Eminemdrdre00 said:
I'm just frusterated because I'm doing the exact same things I've been doing. Haven't changed any settings, but battery life is much worse =\
Click to expand...

Is your iPhone switching between 3G and Edge a lot? If it's constantly searching for a signal, the battery will wear down quickly.
 
Eminemdrdre00 said:
I'm just frusterated because I'm doing the exact same things I've been doing. Haven't changed any settings, but battery life is much worse =\
Click to expand...

You guys probably wont believe this but. If you use and external battery pack to charge your iphone the battery will last much much longer! When I charge using the wall charger it hits 100% and I leave it there longer to make sure. Than I stream music with the screen off. My battery runs down to 90 % in NO TIME. But, when I use my leather holster charger I do the same, it hits 100%, I leave it there longer. Than I stream music the same way and after ONE HOUR and 25MIN my battery hits 90%.


It's as if the external chargers continue to trickle charge the battery more after reaching 100%. I like charging the iphone this way before leaving home.
 
I agree with the OP. I have much worse battery life after 2.2.1
Let me know if you restore and it gets better please. I hate restoring because it rearranges all my apps. :(
 
cjandnw said:
I agree with the OP. I have much worse battery life after 2.2.1
Let me know if you restore and it gets better please. I hate restoring because it rearranges all my apps. :(
Click to expand...

After the restore, let iTunes copy all of your apps to your iPhone. After that's done, right click on your iPhone icon and choose "Restore from Backup" and restore from the same backup as before. The reason why they're jumbled up is because iTunes doesn't copy your apps over until AFTER it's restored from the backup, thus putting your apps in the order they were copied. Doing the second restore-from-backup, will keep your apps on your iPhone, except this time they'll be in the same order they were when you made your backup.
 
Mine has been going down rapidly. I use to have 100% battery life after school but it's at like 80% now... I just figured it was Google Sync that was doing that (and actually still do).
 
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