battery drain on 7.0.6

I hooked up my iPhone to the Xcode Activity Monitor to see which process is consuming a lot of CPU.

As you can see the process backboardd has consumed quite some CPU time and it uses 10 CPU also I am not doing anything at all with the device. CPU goes up to 30-34% if I move (twist & turn) the iphone:

Unfortunately this is a iOS system process so I think I cannot do anything against. However as I found out here in this iPhone development wiki this process is also responsible for forwarding the Accelerometer input to some processes like Springboard (the iPhone Desktop with the App Icons so to say). So I just thougt I might switch off the parallax effect from iOS 7 which moves the background picture according to the phone movent. And voila! The process backboardd consumes much less CPU.

Some numbers:

• parallax effect turned on and iPhone unlocked. I move the device: CPU load of backboardd 30-34%
• parallax effect turned off and iPhone unlocked. I move the device: CPU load of backboardd just 1-2%

So I don't know if this is normal behavior. But I think that turning off the parallax effect will help to increase battery life. I will give it a try and let you know if it improved.

Maybe you give it a shot and see your self if it helps.

Goto: Settings >> General >> Accessibility >> Reduce Motion and turn it OFF.

I believe you need to set Reduce Motion to ON in order to turn the parallax effect off.

is your house cold because cold drastically drains battery

The problems I and at least one other friend are seeing go far beyond voltage drop from a "cold" battery for values of "cold" that apply to the interior of a house that doesn't also contain frozen pipes and hypothermic occupants.

I was quick to blame my recent battery problems on the less than perfect battery in my (aging) 4S, but my friends phone is much newer and the onset of my our battery drainage issues coincide exactly with the installation of 7.0.6.

Coincidence does not indicate causation, but I find the issue worthy of exploration. I'm tempted to try a full reset and "rebuild" the phone from scratch.

Ups! Sure. You have to set the option "Reduce Motion" to ON.

You are right. My mistake.

However it looks like that this is not really helpful in my case. So I turned the motions off but I lost again 50% of battery within the last 3 hours with almost no usage of the iPhone. So it must be something different. 😟

Nope. I work in a office where we usually have a tempreture of 21°C / 70°F.

So low temperature should not be an issue.

On my iPad 3 I noticed with the update to iOS 7.0.6 that it turned on features by default that I had previously turned off, such as Bluetooth. You might want to check to see if features are now turned on that you previously turned off. Some of them might be causing the additional drain on the battery.

yes but not that quick

Phone on standby with no usage and it's dies in hours. Please Some one help .

Bluetooth was constantly on before I updated to iOS 7.0.6.

It never was a problem with battery life. Usually at the end of the day I had about 30-50% battery left.

Now I lose half of the battery within 5 hours.

Hi,

took my phone fully charged with me this morning, did not used it all (no phone calls, no surfing, just had it lying on my desk) and it's down to 80% within 1,5 hours (iPhone 5). That's just not right, before iOS 7.0.6 it would have been just below 100%, sometimes still even at 100%.

PLEASE HELP!

Kind regards

Janosch

Yepp. Same here.

Usage = 44 minutes

Standby = 2 hours 47 minutes

Battery down from 100% to 67%

This is really bad! I'm in despair! 😢

So this is really bad. After 6 hours my battery is down to 20%. Only 1 hour and 41 minutes of usage.

This is definitley not acceptable. That's why I got in contact with Apple Support.

They told me to perform a restore of the iPhone with iTunes to see if this fixes the issue. So I will give it a shot. It can only get better (hopefully).

How'd your restore go?

I read in 2 other groups that a fix is to kill all the running tasks in the double click home button list, then do a hard reset. I thought just holding the top power off button for 10 sec was hard reset, I was wrong. After I held BOTH the home and top power buttons (this is hard reset) my phone now doesn't eat the battery.

Hard reset had no effect with my 4s. The battery drain is even more dramatic. It is dead in an hour in use or not and very hot