Common % for display under 'battery use'? - myTouch 4G Q&A, Help & Troubleshooting

I was just wondering what a common percentage is for the display under the battery use menu.
So far, today, the phone has been on 4 hours 50 minutes. I have an awake time of 1 hour 45 minutes. My display percentage is 76%. Brightness is turned off. The next highest % is Android system at 6%.
I'm not quite sure what numbers I should be seeing.

The display is very power hungry. Mine's currently showing Display 70% with Cell standby 6% as the next highest.
Up time 125:10:27 awake 45:16:26

Related

cell standby takes up most battery life?!

hi,
today i tried to "stress test" my g1's battery. everything on, max display brightness, nearly the whole time turned on, running a few apps etc.
and now after 6h 10m it is at 8%. the surprising part of this is that cell standby drains 27% battery life. the second highest consumer is no less surprising, phone idle, 18%. then wifi, display and android os with about 15%.
this seems wrong somehow. is it normal that cell standby consumes so much battery?
i am running cm5.0.7 test1 which i remember to have an issue with battery life. somewhere i read that i only had to turn off the percentage-counter in the status bar (which i did). is the high cell standby consumption related to that? is there maybe another radio version Oo? (using: 2_22_23_02)
g
fleity

Galaxy S display using 70%+ battery

Hi,
My girlfriend has recently bought a Galaxy S. It has not been rooted or flashed. She's having a problem where the display is using 70% of the battery, even with the brightless set low, as shown under Settings -> About Phone -> Battery
Unplugged for 7h 15m 28s
Display - 70%
Cell standby - 10%
Phone idle - 5%
Android System - 5%
Android Core Apps - 3%
Android OS - 3%
Internet - 2%
Has anyone heard of this before?
What can we do to fix it?
Thanks
Scott
scott9824 said:
Hi,
My girlfriend has recently bought a Galaxy S. It has not been rooted or flashed. She's having a problem where the display is using 70% of the battery, even with the brightless set low, as shown under Settings -> About Phone -> Battery
Unplugged for 7h 15m 28s
Display - 70%
Cell standby - 10%
Phone idle - 5%
Android System - 5%
Android Core Apps - 3%
Android OS - 3%
Internet - 2%
Has anyone heard of this before?
What can we do to fix it?
Thanks
Scott
Click to expand...
Click to collapse
Likewise, the display is draining the most battery comparatively to other things. (I'm using the lowest settings)
Im not speaking from research (how other superphones behave), but wild guess - it is normal for all touch screens, especially bigger ones.
Touch or not - it doesn't matter.
Screen technology and size matters.
See 4" has around 4 times the area of 2" display.
How long was the display active for ? This is normal if you have it turned on a lot at high brightness settings.
i'm not surprised even if the 70% is true, because my HTC Athena is a power hog when i keep the screen on for a long time, the juice que sucked up in a couple of hours of use.
the SGS i9000 is having a better run for the power.
at least i can play 3D games (ASPHAL5) in it without worrying about running out of battery like with my old HTC Athena
scott9824 said:
Hi,
My girlfriend has recently bought a Galaxy S. It has not been rooted or flashed. She's having a problem where the display is using 70% of the battery, even with the brightless set low, as shown under Settings -> About Phone -> Battery
Unplugged for 7h 15m 28s
Display - 70%
Cell standby - 10%
Phone idle - 5%
Android System - 5%
Android Core Apps - 3%
Android OS - 3%
Internet - 2%
Has anyone heard of this before?
What can we do to fix it?
Thanks
Scott
Click to expand...
Click to collapse
See, you are kind of reading this information wrong, IMO. Yes, the display usese 60+% of power, regardless of brightness settings, if you have the display on. Here's the simple math:
Standby time (no sync, no 3G, basically, literally just standing by, screen off doing nothing: 24-25 days
screen on time: 4-7 hours.
You can see that the screen sucks SOOOO much more power than just about everything else your gf had going on in her usage, there wasn't a high usage scenario other than the screen. However, if you use something like GPS the stats will "look better" but you'll have less battery because it'll go from screen to 40% and GPS to 30% but your battery would be nearly dead.
Also, if she just went to sleep then Cell standby and Cell idle jump by 1-5% each and then you have "better looking" statistics.
This essentially means, if you use the phone with the display a large percentage of the time that the phone is unplugged, expect these percentages. I unplug my phone at night, when I wake up my display percentage is 0% (not necessarily better than 70%, because it's usage dependent), then I go to work, so I might run unplugged for 20 hours, use 8% of my battery with my display reading at 20% of the power used. Then, I'll go home and play with it and it's upto 40%, the moral is that it's good to know how much your battery is used on various tasks, but anywhere from 20-70% is normal depending on how much you actually have the display on while it's unplugged.
70% sounded right. There was a youtube VDO that dissemble galaxy s awhile back that really give a good perspective.
The CPU, GPU, GPS, memories etc etc almost fit on your thumb. They are so miniturised and so small. The rest are chassis, batteries and screens taking up almost all the space.
So it is no surprise that the screen should be what guzzling down all the batteries.
didnt know it uses that much...
She's having a problem where the display is using 70% of the battery. [...] What can we do to fix it?
Click to expand...
Click to collapse
The easiest way to fix this is by installing & running multiple applications that consume a lot of battery power. This should lower the percentage of battery power that the display consumes significantly.
(Only posting this because you already got more helpful answers in this thread)
alovell83 said:
See, you are kind of reading this information wrong, IMO. Yes, the display usese 60+% of power, regardless of brightness settings, if you have the display on. Here's the simple math:
Standby time (no sync, no 3G, basically, literally just standing by, screen off doing nothing: 24-25 days
screen on time: 4-7 hours.
You can see that the screen sucks SOOOO much more power than just about everything else your gf had going on in her usage, there wasn't a high usage scenario other than the screen. However, if you use something like GPS the stats will "look better" but you'll have less battery because it'll go from screen to 40% and GPS to 30% but your battery would be nearly dead.
Also, if she just went to sleep then Cell standby and Cell idle jump by 1-5% each and then you have "better looking" statistics.
This essentially means, if you use the phone with the display a large percentage of the time that the phone is unplugged, expect these percentages. I unplug my phone at night, when I wake up my display percentage is 0% (not necessarily better than 70%, because it's usage dependent), then I go to work, so I might run unplugged for 20 hours, use 8% of my battery with my display reading at 20% of the power used. Then, I'll go home and play with it and it's upto 40%, the moral is that it's good to know how much your battery is used on various tasks, but anywhere from 20-70% is normal depending on how much you actually have the display on while it's unplugged.
Click to expand...
Click to collapse
Thanks, but that's the thing, I have a Desire and if used similarly (with brightness set highest) mine shows:
Android System 31%
Cell standby 21%
Wi-Fi 21%
Phone idle 16%
Display 11%
I thought the Galaxy S's screen is supposed to be more power efficient than the Desires so that's why it doesn't make sense to me. Again today her battery use shows:
Display 61%
Cell standby 17%
Phone idle 10%
Android OS 6%
Android System 3%
Internet 2%
So I think either my phone (Desire) is reporting the battery use wrong, her phone (Galaxy S) is reporting it wrong or the display is using more than it should? Now I had a similar battery % when I flashed a few 2.2 roms onto my phone, but people were saying that was because the drivers weren't correct. (I haven't flashed 2.2 recently)
Cheers
Scott
scott9824 said:
Hi,
My girlfriend has recently bought a Galaxy S. It has not been rooted or flashed. She's having a problem where the display is using 70% of the battery, even with the brightless set low, as shown under Settings -> About Phone -> Battery
Unplugged for 7h 15m 28s
Display - 70%
Cell standby - 10%
Phone idle - 5%
Android System - 5%
Android Core Apps - 3%
Android OS - 3%
Internet - 2%
Has anyone heard of this before?
What can we do to fix it?
Thanks
Scott
Click to expand...
Click to collapse
Hello,
Same happened to me, but I used live wallpaper. When I turned to the simple wallpaper the usage from 75% dropped to 50% -keeping all my other activities constant.
Chryssa
I don't think that the info displayed by android is very accurate.
I get about 55% too though.
Sent from my GT-I9000 using XDA App
Just press on the display-bit, and you can see how many hours/minutes it's been on.
19 hours since unplugged:
Android OS: 36%
Cell Standby: 25%
Phone Idle: 18%
Display: 14%
Wi-fi: 3%
Android System: 2%
Those 14% is 31minutes continious use...
31 minutes of Display time is nothing over 19 hours, hence the low percentage. Mine shows approx. 50% usage when it's been used say almost 2 hours and phone awake time 14 hours.
For the OP, if you don't tell us how long the display has been switched on ... all the answer will be just guessing
As everybody says, the display is always the bigger battery consumer unless you use your phone as a mp3 player or just a phone to receive call.
If you go on the web, play games, read mails, use maps ... the display will always be the biggest ( maybe the gps can go higher ... )
On my side I have 65% of battery left after 7h unplugged
50% of display for 1h4mn
21% of android OS
13% of cell standby
8% of phone idle
It's all down to the comparatively slow advancement of battery technology.
Screens are getting bigger, higher resolution and more power-hungry. Just the same as processors and GPUs need more juice, new wireless standards are introduced and multi-tasking becomes popular.
We've come from dumbphones (eg: the old Nokias) used almost solely used for calling and sms to phones that handle half the stuff in our lives, yet they're still using almost exactly the same battery technology to power it.
Simply put, the smarter the phone, the more power hungry it will usually be. And the Galaxy S is currently the smartest phone of the market.
Samsung compensated by fitting a larger battery, but they can't perform miracles with the aging battery tech.
Take a look at the x-ray scans and teardowns of the iPad; 80% of its internal volume is battery space to allow it to last for 10 hours! Sadly phones don't have the same space luxury without the rear getting chunky.
I'm hoping increased capacity batteries are released like the Hero had, as the Galaxy S is large but thin enough that some extra volume on the back wouldn't be much of a problem.
scott9824 said:
Hi,
My girlfriend has recently bought a Galaxy S. It has not been rooted or flashed. She's having a problem where the display is using 70% of the battery, even with the brightless set low, as shown under Settings -> About Phone -> Battery
Unplugged for 7h 15m 28s
Display - 70%
Cell standby - 10%
Phone idle - 5%
Android System - 5%
Android Core Apps - 3%
Android OS - 3%
Internet - 2%
Has anyone heard of this before?
What can we do to fix it?
Thanks
Scott
Click to expand...
Click to collapse
That is just fine! It's just the percentage guys.
Think about it this way.
Compared to the energy consumption of the display other things uses much less energy.
However on my Galaxy S, I played 6 hours (almost 3, 720p Movies) continuously. Isn't it just awesome on a device having 800x480 Crisp Display that only weighs 118 grams?
karunadheera said:
That is just fine! It's just the percentage guys.
Think about it this way.
Compared to the energy consumption of the display other things uses much less energy.
However on my Galaxy S, I played 6 hours (almost 3, 720p Movies) continuously. Isn't it just awesome on a device having 800x480 Crisp Display that only weighs 118 grams?
Click to expand...
Click to collapse
With brightness set to auto-brightness or max or min?
@OP - this is very normal. I always get the same type of readings.
Except when I talk(voice call) for a very long time.
Mine also same display always use up more then 70% and the battery can't even stand for 8 hrs, with very minimum usage 1hrs wifi, 20 min call, 1/2 hrs 3g, 1 hrs navigation(with charging). Have got battery replacement from samsung but still the same I read a post some where for UK set, the guy get 1 to 1 replacement, battery can last for 2 days for it new set, just wonder is it the flaw set we having that cause our battery drain? My friends told me that for his set from morning till after work (9 to 8 pm almost 11 hrs) battery only drop 10%. I really hope someone can help us to prove is samsung selling flaw set so we can claim 1 to 1 exchanges.

Screen Brightness Test = Battery Drain Results

performed a little test this morning, wanted to see how much battery gets drained by just leaving the screen turned ON on different brightness settings. Here are my results:
screen test
9:03 90% wifi/3g off, screen brightness 100% (non-airplane-mode)
9:23 83%
9:43 75%
9:53 71%
10:03 67%
finished
batt usage - display 85%, xscope 6%, android system 3%, live paper 3%, cell standby 2%
100% brightness for 1 hour drained 23% battery , 4% PER 10MIN
-------------------------------
10:04 67% wifi/3g off, screen brightness 30% (non-airplane-mode)
10:14 65%
10:44 58%
10:54 56%
11:04 54%
display 86%, xscope 5%, live wallpaper 4%, android system 3%, cell standby 2%
-----
30% brightness for 1hour drained 13% battery, 2.16% per 10mins.
------------------------------
11:06 53% wifi/3g off, screen brightness 20% (non-airplane-mode)
11:26 51%
11:46 46%
12:06 41%
20% brightness for 1hour drained 12% battery , 2% per 10mins
display 87%, live 4%, xscope 4%, android system 3%, cell standby 2%
so to sum it all up, this is not a very accurate test, just a test I did to see for myself how the screen affects the battery life as I notice my battery drains quickly especially while browsing etc...
just thought I share this with the community incase anyone is interested in these results!
i use it on the lowest brightness (as i do with all screens etc) and get a good day and a half - around 35 hours i'd say...
It would be more accurate if they all startet at 100% battery. But still it shows us enough, the screen sucks energy.
I think many people would like an app that is able to change settings in to the auto brightness setting. So that when the phone thinks, hey it's light, let's do 80% brightness, you can set it so that it will think let's do 60% brightness.
That would be nice. Sorry for the bad explanation, I''m tired

Does battery drain faster below a certain %?

This is odd. On idle, it took nearly 3 hours to go from 62% to 61% which I'm very happy with. After that it started going down a bit quicker. Waking up after 7 and a half hours, the battery had gone from 49% to 42%, so about 1% per hour. While that's not so bad, why would it start to go down fast? Since it took nearly 3 hours to move 1%, I'd have thought it should be at about 46 or 47% after waking up. Is there a % threshold where the battery drains quicker?
Current uptime, mostly from idle, and power saving mode from 50%.
http://img219.imageshack.us/img219/905/sc20110620123449.jpg
Roman5 said:
This is odd. On idle, it took nearly 3 hours to go from 62% to 61% which I'm very happy with. After that it started going down a bit quicker. Waking up after 7 and a half hours, the battery had gone from 49% to 42%, so about 1% per hour. While that's not so bad, why would it start to go down fast? Since it took nearly 3 hours to move 1%, I'd have thought it should be at about 46 or 47% after waking up. Is there a % threshold where the battery drains quicker?
Current uptime, mostly from idle, and power saving mode from 50%.
http://img219.imageshack.us/img219/905/sc20110620123449.jpg
Click to expand...
Click to collapse
maybe this battery drain problem started randomly on you device after 61% ...
but you do not have this wifi sharing or manager app that drain battery..this is strange..maybe your battery needs to be calibrated
.
nicpol7 said:
maybe this battery drain problem started randomly on you device after 61% ...
but you do not have this wifi sharing or manager app that drain battery..this is strange..maybe your battery needs to be calibrated
.
Click to expand...
Click to collapse
Thanks for your reply. Where do I find the battery calibration setting? I can only find calibration for gyrosensor and horizontal.
Roman5 said:
This is odd. On idle, it took nearly 3 hours to go from 62% to 61% which I'm very happy with. After that it started going down a bit quicker. Waking up after 7 and a half hours, the battery had gone from 49% to 42%, so about 1% per hour. While that's not so bad, why would it start to go down fast? Since it took nearly 3 hours to move 1%, I'd have thought it should be at about 46 or 47% after waking up. Is there a % threshold where the battery drains quicker?
Current uptime, mostly from idle, and power saving mode from 50%.
http://img219.imageshack.us/img219/905/sc20110620123449.jpg
Click to expand...
Click to collapse
Do you have any apps running at all? Mine is going from 100% to 10% in ~7-8 hours with mid usage :-(

i9505 Poor 'screen on' battery life

I've got brilliant screen off battery life on my SGS4, but soon as I start using the phone the battery just plummets.
I took my phone off charge, went to the bus stop, started at 100% and finished on 89%. Total off charge time 19m, screen on 12m. That's 1% every 2 minutes!
I'm sure it's not a background task, my phone goes into deep sleep most of the time. Checked CPU usage and nothing is up, got brightness to lowest and all extra features off and power saving on. I had 70% left yesterday after being nearly asleep for 13hr.
Using Golden Eye 8.0 ROM. XXUDMI1 bases with Adam kernel 1.6 and baseband XXUDMG5. I've used other ROMs to no change.
Went down by 7% just writing this!
Down to 60% battery after 1hr20min off charge which 1hr screen on

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