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IOS 4.2.1 battery drain

Anyone noticed any battery drain so far on IOS 4.2.1?

iPhone 4, iOS 4

Posted on Nov 23, 2010 10:19 PM

Reply
526 replies

Apr 27, 2017 2:47 AM in response to TechAddict

What worked for me also was plugging iPhone 4 into Itunes, backing up and after that pressing the restore button. I just restored from previous backup (and did not set up my iPhone as a new phone).

Before that my phone was draining battery like mad.

Other things i do is:

1. Fetch mail every 30min (instead of push)
2. Kill all unnecessary background apps
3. Turn of wifi when I leave home
4. Keep brightness at 40%

I do keep notifications, location services and 3G on at all times, only Bluetooth is disabled.

Now I do get satisfactory battery life. I would say 7-9 hours of usage and 36 hours of Standby. I am fairly satisfied with this battery life.

Nov 24, 2010 1:41 AM in response to Claus C

Hi seems to be after 4.2.1 Battery life is better.

my usage 2 hours and 53 Minutes - current Batter % remaining - 56%
Standby - 17 hours and 29 Minutes.

After IOS upgrade - Please turn off the IPhone and ON again.

Try to Follow apples instruction that will help improve your battery performance.
here is the link

www.apple.com/batteries/iphone.html

IOS 4.2.1 battery drain

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