It's not your motion sensor. It's the phone struggling to keep a strong network signal. It drains the battery more than any other background activity.
How many dots are strong signal? 4/5 from 5?
It's not your motion sensor. It's the phone struggling to keep a strong network signal. It drains the battery more than any other background activity.
How many dots are strong signal? 4/5 from 5?because at work mostly I get 3 from 5 however I use WiFi but also keep turned on cellular.
Dots are not a linear representation of signal strength, unfortunately.
With 4/5 dots you surely have a good signal. 1/2 are a very poor signal, barely usable especially for data exchanges. 3 dots are a gray area: it could be good for a phone call, but hard for data exchanges (thus an high battery drain).
Unless Apple changed it with the 6, that is not true. It's a logarithmic scale and 4/5 is not a great signal. 5 is good, but in actuality , the scale, fully represented graphically ( and just from memory with research I did during the antenna gate days) the scale could go up to 10 dots at least. A 4/5 in the iPhone 4 and you could observe an antenna gate problem. 5/5 and above, you were good.
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I didn't use my phone much yesterday, but I had one push mail and one hourly fetch mail running along with Facebook notifications.
Just an example of the battery not self draining. Keeping the screen off is a big factor.
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Dots are not a linear representation of signal strength, unfortunately.
With 4/5 dots you surely have a good signal. 1/2 are a very poor signal, barely usable especially for data exchanges. 3 dots are a gray area: it could be good for a phone call, but hard for data exchanges (thus an high battery drain).
[Correction added]
. It's a logarithmic scale and 4of 5 is not a great, but good signal. 5 is better , but in actuality , the scale, fully represented graphically ( and just from memory with research I did during the antenna gate days) the scale could go up to 10 dots at least. Basically 4 of 5 to 1 of 5 covers a factor of 10,000 signal strength variation ( not linear as you said). But 5 of 5 and the unreported dots above 5 of 5 covers another factor of 10,000. ATT once stated, for the iPhone, 3-4 bars or dots was a poor signal area.
A 4 of 5 in the iPhone 4 and you could observe an antenna gate problem. 5 of 5 and above, you were good.
You need to do one of, or a combination of:
Deleting and reinstalling your email accounts.
Resetting network settings.
Resetting all settings.
You obviously have something wrong there, and the background activity gives it away.
I would disagree with "obviously something wrong". Qver an hour of use and 86% with almost a full day of standby is not obviously bad battery life. Pretty normal I would say.
I wasn't really commenting on battery life, more the 'background activity' in apps which pretty much never say that. I had that issue before and resetting all settings (plus the subsequent re-toggling) fixed it.
Oh sorry, wasn't thinking that. However background activity is normal too if its turned on. Looks like he has stocks and photos in the background enabled. So in that case this too would be normal.
Since 4.0.1, this has been changed to be more linear.
http://www.anandtech.com/show/3821/iphone-4-redux-analyzing-apples-ios-41-signal-fix
I think it can be easily measured by field test menu whereas instead of dots are being shown by dBmThat article is quite old.
Since iOS 7 dots took place of bars, and we don't know the algorithm behind....
I think it can be easily measured by field test menu whereas instead of dots are being shown by dBm![]()
You need to do one of, or a combination of:
Deleting and reinstalling your email accounts.
Resetting network settings.
Resetting all settings.
You obviously have something wrong there, and the background activity gives it away.
I'm experiencing the same difference.Which is exactly what I did with my 4 and 5 models.
Basically the dots show the very bottom of signal strength scale. 1-4 and you are in a weaker area and to expect variations of quality and speed. In a city near towers when it says 5 bars or dots you may really have a 10 equivalent. Something near -40 dBm. You don't know since the bars peak out. I know I measured it. 1 dot is closer to -120 dBm.
Anandtech's new bars agrees with my findings.
The point is that two users each with 5 dots may vastly be consuming different battery drains. And certainly someone at 3-4 is consuming more battery. The difference for me at home and in the city can be an hour or more or less usage time.
There is nothing wrong, and in fact it is great. This is a 6, not a 6+
Photo stream is on, and mail is fetching and pushing in the background. This is normal.
21 hours of standby, and little usage shows that the iOS is not drawing my battery on its own. With normal usage, with my habits, I'll get 8 hours of usage. In a stronger signal area, it might go to 9-10. No audio being used.
I'm experiencing the same difference.
Going from Rome where I work and live, to Milan, my hometown, I can gain more than an hour in usage time.
In Rome I have 3-4 dots, while in Milan I have 5 most of the time.
Blimey. I barely get 10 hours on my 6+ unless cell and WiFi signals are strong. Otherwise I see 11 hours. It's strange that some people get great battery life from their 4.7" and others only see 6 hours.
That article is quite old.
Since iOS 7 dots took place of bars, and we don't know the algorithm behind....
And we are back at random shutdowns when the battery is 10%+.
Lots of my facebook friends have the same problem with the 5s!
Yesterday I had 19% and 2 minutes later when I checked he was shutdown and could not be started again! When I charge the iphone it obviously starts at 18%... annoying!