How is 2.1 going to improve battery life?

Espo

macrumors 6502
Original poster
Aug 16, 2007
400
0
NY
the battery life is supposed to be increased significantly, what is significant? And how are they gonna do this?
 

ottergal

macrumors member
Jul 8, 2008
63
0
the battery life is supposed to be increased significantly, what is significant? And how are they gonna do this?
I was wondering the same thing. What I'd love to see them do at some point is introduce some new setting options so that you can "auto manage" some of your battery saving preferences. For example, something that says that if you're not actively using location services that it should be turned off after xx time. Of if you're on WI-FI, turn off the 3G chip.

I already get pretty good battery life, so I'm not looking forward to this as much as some people, I think.
 

whooleytoo

macrumors 604
Aug 2, 2002
6,559
628
Cork, Ireland.
No one knows.

Perhaps not every component is "sleeping" as often/long as it should. Perhaps some antennae are using more power than they need. Perhaps the battery sensor which measures charge remaining is overly conservative and shuts down the phone far too soon. Perhaps it uses Reality Distortion Field Energy, otherwise known as the Placebo effect. Who knows?
 

AustinSTI

macrumors 6502
Jul 2, 2007
394
0
I was wondering the same thing. What I'd love to see them do at some point is introduce some new setting options so that you can "auto manage" some of your battery saving preferences. For example, something that says that if you're not actively using location services that it should be turned off after xx time. Of if you're on WI-FI, turn off the 3G chip.

I already get pretty good battery life, so I'm not looking forward to this as much as some people, I think.
It depends. It could do the following:

Optimize Push functionality
Optimize the 3G chipset/code
Optimize the Location services code to locate faster.

Likely all performance optimizations if anything at all...Time will tell...

On the original first gen they did make improvements that improved battery life...
 

TEG

macrumors 604
Jan 21, 2002
6,570
49
Langley, Washington
Likely the following:

Better Power Management/Sleep with WiFi
Locations Services turn off when you leave an App that turned them on
GPS Sleeps when not being used
Better Brightness controls.
Accelerometers sleep when not in use.
Better Application Indexing to reduce time needed to find the Apps.
Better Memory Management.
3G/EDGE switch overs
3G Power Corrections

TEG
 

NDimichino

macrumors 6502a
Jan 14, 2008
593
0
New Jersey
the battery life is supposed to be increased significantly, what is significant? And how are they gonna do this?
Turn off WiFi
Turn off Location Services
Turn off Auto-check e-mail
Turn Brightness way down
Turn off Fetch

Your battery should now be leaps-and-bounds better, otherwise, you might have a defect.
 

tyr2

macrumors 6502a
May 6, 2006
802
83
Leeds, UK
if you're not actively using location services that it should be turned off after xx time.
Just a note to say location services are off most of the time and are only on when an application requests it, and even then there are fairly strong guidelines around only using them as briefly as possible.
 

Trajectory

macrumors 6502a
Nov 13, 2005
741
0
Earth
the battery life is supposed to be increased significantly, what is significant? And how are they gonna do this?
The firmware update will kill one of the 2 hamsters inside your iPhone, thereby requiring less energy to run it.
 

darkwing

macrumors 65816
Jan 6, 2004
1,210
0
It could be that Apple engineers, who specialize in bloated and inefficient software, have made things a little more efficient so the CPU can idle more frequently.
 

icewing

macrumors 6502
Jun 19, 2008
374
0
St Louis
Just a note to say location services are off most of the time and are only on when an application requests it, and even then there are fairly strong guidelines around only using them as briefly as possible.
Really? Not slamming you or calling you a liar, just curious - what's your source for this? I've been keeping location services turned off due to recommendations here that you mention. Thanks!
 

danny_w

macrumors 601
Mar 8, 2005
4,383
120
Austin, TX
Hopefully 2.1 will fix the random battery drainage due to 100% usage. Most times when I fully charge my iPhone, the usage count tracks correctly, but sometimes it randomly seems to track the standby time almost exactly. Of course when it does that the phone dies in a few hours. I have seen others here reporting the same issue with no pattern that anybody has been able to discern.
 

ottergal

macrumors member
Jul 8, 2008
63
0
Just a note to say location services are off most of the time and are only on when an application requests it, and even then there are fairly strong guidelines around only using them as briefly as possible.
That's not been my experience. If I go to maps and tell it to find me, it will ask if I want to use my current location, turning on Location Services. I have always had to manually go in and turn it off when I'm done.

There may be some sort of management around how hard it's using it, but it's showing active in the settings.
 

ottergal

macrumors member
Jul 8, 2008
63
0
Some countries don't have EDGE (yes, that is how behind the US is)...so that feature would be kind of useless since that would mean they're turning off their phone in order to use Wi-Fi...
That's why I said a that an option to set that would be nice. I would use it, you might not.
 

Niiro13

macrumors 68000
Feb 12, 2008
1,717
0
Illinois
That's why I said a that an option to set that would be nice. I would use it, you might not.
I doubt Apple would have something as specific in that case, though...

That's why a lot of other users' feature requests aren't on the iPhone yet...like turning off auto-correct, landscape settings for specific applications, etc. Except having a feature that would only be used in a couple countries is even more secluded than those.

Have you even seen a feature on the iPhone that is geared towards a couple countries?
 

aristobrat

macrumors G5
Oct 14, 2005
12,248
1,319
espo said:
the battery life is supposed to be increased significantly, what is significant? And how are they gonna do this?
And when Steve qualified that statement with "for some", who did he mean? Doesn't sound like everyone's going to see great battery improvements.


That's not been my experience. If I go to maps and tell it to find me, it will ask if I want to use my current location, turning on Location Services. I have always had to manually go in and turn it off when I'm done.
I don't think that Location Services uses extra battery unless a program is specifically asking for the current location.

i.e. just because the setting is turned "on" in Preferences doesn't mean that Location Services is drawing battery power when you're listening to the iPod, or surfing in Safari.
 

bluenoise

macrumors 6502a
Jul 16, 2008
756
0
Just a note to say location services are off most of the time and are only on when an application requests it, and even then there are fairly strong guidelines around only using them as briefly as possible.
Really? If I have LS turned off in the prefs and then turn it on immediately before finding my location in Maps, it takes a long time to finally zero in on my location. If it's already been on in prefs, finding myself in Maps is nearly instantaneous. I thought this was because the GPS already was locked on to the appropriate satellites instead of having to acquire them while locating me in Maps.

Also, why does my battery go down more quickly with LS turned on, even if I don't use any apps that use LS all day?

I'm not trying to call you a liar or anything, but it seems to go against the behavior of my phone.:confused:
 

FJR

macrumors regular
Jul 21, 2008
204
0
my guess is mostly managing the 3G's power usage better.

Its probably a combo of the iPhone using too much power for 3G (which has been said is part of what is causing all the 3G problems on AT&T's network) and a few other smaller things here and there. I'd even be willing to bet that the fix was mostly to fix the problem with AT&T's network first and it just had the side benefit of giving better battery life.

It'll be intersting to see, because if its not 3G, then it would also apply to the iPhone 2G, and since the 2G's battery life is already pretty good, it'd have pretty amazing battery life for a smart phone, possibly the best battery life of any smart phones.
 

ottergal

macrumors member
Jul 8, 2008
63
0
I doubt Apple would have something as specific in that case, though...

That's why a lot of other users' feature requests aren't on the iPhone yet...like turning off auto-correct, landscape settings for specific applications, etc. Except having a feature that would only be used in a couple countries is even more secluded than those.

Have you even seen a feature on the iPhone that is geared towards a couple countries?
They already have an option to turn it off. Obviously, people who are in 3g only areas don't use that feature. I don't think that it's a large stretch to make it a conditional setting, but I also don't think that we will see it. I said I'd LIKE to see that, but I'm not expecting it.

However, the OP asked how they were going to increase battery life. Apple already suggests that turning off 3g will help that. I was responding to the original question with what I saw as a (potentially) natural progression of a feature that's already being offered.
 

darkwing

macrumors 65816
Jan 6, 2004
1,210
0
and you could be trolling.
Not at all. If the software is made more efficient so that the scheduler can idle the CPU more often because there's nothing else to do during that time, then the power consumption goes way down.

Or are you reverse trolling?
 

FJR

macrumors regular
Jul 21, 2008
204
0
And when Steve qualified that statement with "for some", who did he mean? Doesn't sound like everyone's going to see great battery improvements.
My guess is that the some refers to 3G owners, as opposed to 2G owners. And that the fix will be better power usage of 3G.