hey all
i use batterydrain app which to get battery % per hour
and always there peaks like 120% per hour and 60% randomly
and drain the battery significant
[ at first i thinked its cos the GPU, so i tested flash video, zooming moving and nothing cant make it peak to 60% BPH ]
but with airport mode there no peaks like that
the max i get is 30% the average is 22%
i don't get it
when i use GSM only and phone is idle i get mostly 0.1 BPH to 1 BPH
BPH - battery percent / Hour
really weird what is the problem guys ?
lets summarize
battery drain on idle [ gsm only ] = average 0.5% per hour
battery drain , browsing the net via wifi with gsm only = around 40-50%
battery drain ,airport ,browsing the net via wifi = 23%
23% + 0.5% != 40% doesn't make sense
sorry for my bad English
i will try it in bigger scale just put the sim in hd2 phone for while to see the different
Airplane mode disables the radios completely. Disabled radios = longer battery life + cooler phone.
HTC Rezound
luis86dr said:
Airplane mode disables the radios completely. Disabled radios = longer battery life + cooler phone.
HTC Rezound
Click to expand...
Click to collapse
thx for reply but still not answer why there much different
Proz00 said:
thx for reply but still not answer why there much different
Click to expand...
Click to collapse
THe radios are the main source of power draw and heat on the phone besides the CPU and display. By disabling the radios (Airplane Mode) you eliminate one of the major battery drainers, thus increasing your life and cooling the phone down
Sent from my Galaxy Nexus
still not that much a different
if u see my drain at idle is around 0.5% per hour
so if u add
airport mode and idle u get = 22% + 0.5 which is much far then 40-50%
when gsm only and browsing the net
Proz00 said:
still not that much a different
if u see my drain at idle is around 0.5% per hour
so if u add
airport mode and idle u get = 22% + 0.5 which is much far then 40-50%
when gsm only and browsing the net
Click to expand...
Click to collapse
Dude, its simple, this is not rocket science. Airplane mode = less power draw. Plain and simple. Either take the correct answer or continue arguing about. Either way, you have your answer.
Proz00 said:
still not that much a different
if u see my drain at idle is around 0.5% per hour
so if u add
airport mode and idle u get = 22% + 0.5 which is much far then 40-50%
when gsm only and browsing the net
Click to expand...
Click to collapse
OK since that's over your head, take a look at this hypothetical situation. It's the same as asking why someone's car gets 90 hours per liter of fuel when its parked in a garage with the engine running, and but only 1 hour per liter of fuel when it is pulling a trailer full of obese illegal immigrants through the mountains in South America against a head wind.
It's because the car doesn't really use a lot of fuel when it's idling and doesn't have a load on it. But when someone puts a load behind the car, there's also other variables. Things such as high and low mountainous terrain, a bunch of really large, heavy people crammed into a trailer like sardines and then covered with old roofing shingles to disguise them are all things that require more power. Plus the resistance of the headwind along with the varying speed of travel and RPM of the motor that comes from having to slow down going downhill and speed up going up hill.
The moral of the story is, if you calculated your fuel consumption ahead of time and charged the passengers in the trailer at the rate of 90 litres per hour, you would be broke after one run for the border.
The car can't physically get the same efficiency sitting in that nice cold air conditioned garage as it can pulling that huge load which requires a lot of power, in extreme climates with changing atmospheric conditions and air density.
PS - Of course for the analogy to be complete, you would have to imagine that the gas guage uses a crap load of fuel to operate itself.
You get even better battery life if you turn your phone off. The battery can easily last a week or more! HTH! HAND!
I'd think your CPU and screen are using more battery than your GSM radio. When your phone is idling, your CPU can enter a power saving mode which greatly reduces battery usage vs being active while browsing. You should try browsing on GSM data vs browsing on Wifi data vs browsing on Wifi data with GSM active and see if you get similar results.
Guys, give him a break. This doesn't come easy to some people and it is our job to help them. Is that not why we are on these online forums? To help people?
Anyway, OP, think about it this way.
Your phone has to send a signal probably miles away to a tower. Walkie talkies have a rage of about 2 miles, and that is analog. Cell phones are digital, which requires more power.
Sending a constant signal miles away sucks a ton of power. Thus, by turning it off, you don't have the phone sending a signal a mile away anymore which reduces battery draw.
GrayTheWolf said:
Guys, give him a break. This doesn't come easy to some people and it is our job to help them. Is that not why we are on these online forums? To help people?
Anyway, OP, think about it this way.
Your phone has to send a signal probably miles away to a tower. Walkie talkies have a rage of about 2 miles, and that is analog. Cell phones are digital, which requires more power.
Sending a constant signal miles away sucks a ton of power. Thus, by turning it off, you don't have the phone sending a signal a mile away anymore which reduces battery draw.
Click to expand...
Click to collapse
Great reply. I work in IT and it's really easy to forget a lot of people aren't technically inclined and to be condescending to them. If it weren't for the non-techies, people like me would be without a job.
GrayTheWolf said:
Guys, give him a break. This doesn't come easy to some people and it is our job to help them. Is that not why we are on these online forums? To help people?
Anyway, OP, think about it this way.
Your phone has to send a signal probably miles away to a tower. Walkie talkies have a rage of about 2 miles, and that is analog. Cell phones are digital, which requires more power.
Sending a constant signal miles away sucks a ton of power. Thus, by turning it off, you don't have the phone sending a signal a mile away anymore which reduces battery draw.
Click to expand...
Click to collapse
but when u browsing over the net with wifi
radio/gsm is on idle, doesn't it ? its not that i making a call or send msg ....
im asking here to might help fix the da** battery problem Rezound have
SoonerDude said:
Great reply. I work in IT and it's really easy to forget a lot of people aren't technically inclined and to be condescending to them. If it weren't for the non-techies, people like me would be without a job.
Click to expand...
Click to collapse
And also he said English isn't his first language and everyone still give have crap.
Proz00 said:
but when u browsing over the net with wifi
radio/gsm is on idle, doesn't it ? its not that i making a call or send msg ....
im asking here to might help fix the da** battery problem Rezound have
Click to expand...
Click to collapse
The radio is still on and connected even if you're not sending anything.
jayochs said:
hahahah not sure if your post is a pun, or just really ironic.
Click to expand...
Click to collapse
That was me typing on the bus.
Proz00 said:
but when u browsing over the net with wifi
radio/gsm is on idle, doesn't it ? its not that i making a call or send msg ....
im asking here to might help fix the da** battery problem Rezound have
Click to expand...
Click to collapse
WiFi uses less power than 4G, or even 3G, so it is better to be connected to WiFi instead of 3G or 4G if you can.
If you are on Verizon, than CDMA is only used for calling and texting, and 3G if you use it. If you disable mobile data in settings, it will cut off 3G and 4G, but you will still be able to make calls and use texting. This will greatly increase your battery life. Most people have a widget on their homescreen that will toggle mobile data with one tap.
The Rezound has a very small battery when considering what draws from it, 4G, 1.5 Ghz dual core processor, 4.3 inch screen. I you want better battery life you should take a look at the extended battery. Double the size, but seems like triple the screen time.
I bought the extended, and never looked back at the standard. Just doesn't last long enough.
---------- Post added at 03:10 PM ---------- Previous post was at 03:09 PM ----------
Po1soNNN said:
That was me typing on the bus.
Click to expand...
Click to collapse
Typing on the bus is impossible, especially with the freshman screaming and touching each other.
Oh, I need a car.....
GrayTheWolf said:
Typing on the bus is impossible, especially with the freshman screaming and touching each other.
Oh, I need a car.....
Click to expand...
Click to collapse
The freshman on my bus aren't bad at all but I'm almost 16 so permit soon.
Doesn't the phone automatically turn mobile data (3G/4G) off when you're connected via wifi?
To the OP: The reason 23 + 0.5 != 40 is because you're assuming that all the battery usage is from the data connection / radios. But in fact the vast VAST majority is being used by the screen. And when you're making those radios work hard because you're browsing the internet, they're eating battery as well. So it's a double whammy. But when the phone is idle, the screen is off, the phone itself is operating as a lower frequency, and there's less data communication because it's only doing account/app syncs every so often instead of a constant connection.
And to you guys who were ripping on the OP for asking a perfectly valid question, let me response by quoting Ned Stark: Which one of you was a marksman at ten?
when someone ask out of the box/ system they cant understand and blame him for stupidity
GrayTheWolf said:
Guys, give him a break. This doesn't come easy to some people and it is our job to help them. Is that not why we are on these online forums? To help people?
Anyway, OP, think about it this way.
Your phone has to send a signal probably miles away to a tower. Walkie talkies have a rage of about 2 miles, and that is analog. Cell phones are digital, which requires more power.
Sending a constant signal miles away sucks a ton of power. Thus, by turning it off, you don't have the phone sending a signal a mile away anymore which reduces battery draw.
Click to expand...
Click to collapse
It has nothing to do with intelligence. We told him. He just didnt want tolisten to us. Theres a difference
Sent from my ADR6425LVW using Tapatalk 2
Related
Apologies if this belongs in Themes & Apps, but I thought it seems more like programming at the OS level than a new app.
I had an idea while driving home after a long day in a location that had low 3G signal, and my phone was dead:
Latedroid's Juicedefender helps save battery by turning off the APN every x minutes, and we know that using 3G/EDGE data eats up a lot of battery, especially when in a low signal area (takes more power to transmit).
How feasible would it be to create an app/build in code in Android for the functionality to turn off/disable the APN when the signal level is below a certain threshold?
Of course, you would need to build in some sort of manual override for times you really want to use data even if you are in low signal area. Perhaps if the device is NOT in sleep, do not disable the APN regardless of signal strength. But if the device is sleeping, disable APN if signal is lower than x dB.
What do you all think? Problems I already foresee is that switching APN on and off would have a delay upon first wakeup, or possibly interrupt data transfers in progress when device goes to sleep.
Thanks,
--Hans
Very interesting
Actually, this sounds like a very good idea. Now, just need to find a dev capable of producing such results. Maybe contact the developer of Juice Defender/Plotter and see if it is feasible. I like where this could go though. Battery is the ONE complaint I have about my otherwise sexy and powerful device!
Great idea.
I have thought about this as well.
this would be too difficult to implement i would think. even in strong signal areas, the reception bounces all over the place sometimes. the phone would constantly be bugging itself out i would think as the signal dips below, then goes right above, the threshold level.
RogerPodacter said:
this would be too difficult to implement i would think. even in strong signal areas, the reception bounces all over the place sometimes. the phone would constantly be bugging itself out i would think as the signal dips below, then goes right above, the threshold level.
Click to expand...
Click to collapse
Nah, I don't think so. With some clever programming and it watching maybe an average signal level over some period of time, I think it could do pretty well. The idea is to avoid HUGE battery drains over a moderate amount of time.
For example, if i'm at work in my office building, i get 0-1 bars of signal strength for 8 hours. It would be great if it detected after, say...10 minutes that my signal strength was in the crapper, and turned off the APN (or at least, account syncing) so I won't leave work 8 hours later with 5% battery life. But, if I wake my phone up, it will automatically turn the APN on so I can use data as I see fit.
But let's say I go out for lunch. The phone would either detect that I'm changing position/location via cell towers, or it would just regularly poll signal level and when it found that my signal level had increased by some delta amount over say...5 minutes, it would turn the APN back on.
I find that most of my frustration with this phone is with battery drain, and most of the drain comes from sitting in low signal areas for extended periods of time. If this could be accomplished (with configurable thresholds and stuff about time to average the signal over, etc) I think it would be an excellent addition to the customization-ability of android!
Good thoughts.
THATTON said:
Actually, this sounds like a very good idea. Now, just need to find a dev capable of producing such results. Maybe contact the developer of Juice Defender/Plotter and see if it is feasible. I like where this could go though. Battery is the ONE complaint I have about my otherwise sexy and powerful device!
Click to expand...
Click to collapse
But yeah, this may requires a good dev.
Thanks for launching the discussion!
dyndragon said:
Nah, I don't think so. With some clever programming and it watching maybe an average signal level over some period of time, I think it could do pretty well. The idea is to avoid HUGE battery drains over a moderate amount of time.
For example, if i'm at work in my office building, i get 0-1 bars of signal strength for 8 hours. It would be great if it detected after, say...10 minutes that my signal strength was in the crapper, and turned off the APN (or at least, account syncing) so I won't leave work 8 hours later with 5% battery life. But, if I wake my phone up, it will automatically turn the APN on so I can use data as I see fit.
But let's say I go out for lunch. The phone would either detect that I'm changing position/location via cell towers, or it would just regularly poll signal level and when it found that my signal level had increased by some delta amount over say...5 minutes, it would turn the APN back on.
I find that most of my frustration with this phone is with battery drain, and most of the drain comes from sitting in low signal areas for extended periods of time. If this could be accomplished (with configurable thresholds and stuff about time to average the signal over, etc) I think it would be an excellent addition to the customization-ability of android!
Click to expand...
Click to collapse
good points. you're probably right. i also sit at work all day at my desk, and i only get 1 bar of 3g signal. stupid building blocks reception.
Posted this in the Google Dev Group from Latedroid... Dont think he will work on it in the near future though, as a new JD version will come to the market very soon
Very nice idea actually. After some beta versions, could be really really useful.
The paid version of Juicedefender has an option that can disable the APN whenever the screen is off. I don't use it because it interferes with Pandora.
It also has a 1x1 widget for manually enabling/disabling the APN.
connery916 said:
The paid version of Juicedefender has an option that can disable the APN whenever the screen is off. I don't use it because it interferes with Pandora.
It also has a 1x1 widget for manually enabling/disabling the APN.
Click to expand...
Click to collapse
That's an entirely different thing, entirely.
I miss those movies.
I did have another idea, and its to remap the brightless on the N1. Most of us probably use 100% brightness, but I have a funny idea that somewhere between 85-90% brightness there is a sweetspot which pretty much looks identical, but uses a reasonable amount less power. Unfortunately without a multimeter, I am unable to test
dogiedogie said:
I did have another idea, and its to remap the brightless on the N1. Most of us probably use 100% brightness, but I have a funny idea that somewhere between 85-90% brightness there is a sweetspot which pretty much looks identical, but uses a reasonable amount less power. Unfortunately without a multimeter, I am unable to test
Click to expand...
Click to collapse
100% brightness? You're crazy. Must of us have it cranked way down.
dogiedogie said:
I did have another idea, and its to remap the brightless on the N1. Most of us probably use 100% brightness, but I have a funny idea that somewhere between 85-90% brightness there is a sweetspot which pretty much looks identical, but uses a reasonable amount less power. Unfortunately without a multimeter, I am unable to test
Click to expand...
Click to collapse
I find that if we can conserve power while in low signal areas, that is a much greater gain than even dimming the display...anyway, totally off topic!
Send some requests to Mark at latedroid if you want them to consider it! I think Juicedefender is closest to this feature set, really.
dyndragon said:
I find that if we can conserve power while in low signal areas, that is a much greater gain than even dimming the display...anyway, totally off topic!
Send some requests to Mark at latedroid if you want them to consider it! I think Juicedefender is closest to this feature set, really.
Click to expand...
Click to collapse
But wouldnt doing that just leave us with NO signal? We all know about the N1's 3g 'problems' to begin with.
Hook PhoneStateIntentReceiver with notifySignalStrength and pull phoneStateReceiver.getSignalStrength();
The development ain't hard to do. The rules are.
Aka on what threshold do you disable, do you enable once every X minutes anyway etc. Do you force keeping one state for X minutes to avoid enable/disable spam.
nurre said:
Hook PhoneStateIntentReceiver with notifySignalStrength and pull phoneStateReceiver.getSignalStrength();
The development ain't hard to do. The rules are.
Aka on what threshold do you disable, do you enable once every X minutes anyway etc. Do you force keeping one state for X minutes to avoid enable/disable spam.
Click to expand...
Click to collapse
Well being a developer on other platforms and having watched a lot of sessions from Google I/O 2010, I have a feeling that calling these APIs too frequent might actually drain more battery than this would conserve, but without a test I might be wrong, just sharing what I feel here, no flames, thank you
tazzix said:
Well being a developer on other platforms and having watched a lot of sessions from Google I/O 2010, I have a feeling that calling these APIs too frequent might actually drain more battery than this would conserve, but without a test I might be wrong, just sharing what I feel here, no flames, thank you
Click to expand...
Click to collapse
Another problem you'll face is even if you balance it perfectly for you, so your saving power, chances are at least half the users will see a DECREASE in battery because of the signal conditions they have in their area.
dyndragon said:
I find that if we can conserve power while in low signal areas, that is a much greater gain than even dimming the display...anyway, totally off topic!
Send some requests to Mark at latedroid if you want them to consider it! I think Juicedefender is closest to this feature set, really.
Click to expand...
Click to collapse
In my battery stats, display is always number one offender.
Automatic brightness is probably the way to go
Hi gang,
So, my area was upgraded to LTE recently and its good! But then, I also noticed higher standby power dissipation (which can be expected), but I wanted to know where I stood in the distribution. I charged the phone to 100% and went to sleep. When I woke up the following morning, it had lost ~20% of its charge, with about 8 hours of standby and minimal awake time.
So, can you help me by posting here, your details as follows?:
- Are you in 4G/3G area?
- % of battery lost overnight
- Time for which your phone was in Standby/Sleep for the night.
- The Radio version.
- The ROM you are using.
- Kernel version you are using and whether or not you are underclocking/undervolting. If you are then please specify the freq-voltage of the lowest slot (used in standby most of the time).
I'll start with mine:
- 4G
- 18 to 20%
- 8 hours
- MR2 leaked radio (1.39.00.0508w, 0.01.69.0510w_3)
- Gingeritis beta 9
- Imoseyon's v3.0.1test1. UC'ed and UV'ed: 184Mhz - 0.9V
I know that there are other factors that affect this, but dont want to make this complicated.
Thanks!
Liquid Thundersense 1.5, battsave kernel, juice defender, 3g.
I loose 4-6 points overnight.
Sent from Thunderbolt, Liquid Thundersense 1.5
Disable the 184MHz, you are probably getting worse battery by having it enabled.
I've never lost a battery. I wake up in the morning and there it is. LOL
But seriously, I keep my phone plugged in at night, so when I get up, I'm at 100%.
I lose 15-20% overnight. dasBAMF 2.5. MR2 radio.Clocked down to 6xx MHz in screen off mode.
Overnight? When it's not being used and being unplugged serves no purpose? I lose 0% because I plug it up and let it charge.
das BAMF sense 3.0 rocking the bolt
Why do u take it off the charger at night? Makes no sense
OP wants to get a minimal rate of power drain and eliminate as many variables as possible. He wants to see how his setup compares to others. Letting your phone sit & doing nothing with it for 6-8 hrs is a simple way to figure this out.
I understand what you are saying, but really what is the purpose?
Yes it will give you baseline as to how long your battery may last, if you just let it sit.
But what is important is how long it will last when being used. That number can vary greatly depending on how you use the phone.
It's kinda like EPA estimates on cars. Does a car that says it gets 34 mpg really get 34 mpg based on the way you drive?
Thanks for the replies guys.. I just want to figure out how the power consumption in my phone compares to others.
@Benny
Yeah, i unplug the phone and dont let it charge overnight. Though the charging cuts off after its full, it can resume when it drops a little.
http://lifehacker.com/5789794/avoid-frequent-discharges-to-extend-your-phone-or-laptops-battery-life
@dnakaman & abn75
Well, I meant overnight, just to get a period of ~8hours in standby. Since you have it plugged in overnight, just let me know the amt of charge you lose, when you keep the phone in standby without using for a long enough time.
@goos3y
I thought abt that too, but its not the 184Mhz.. coz I was getting good enough charge retention just before my area went to 4G. So this thread is to mainly compare 4G standby power dissipation actually.
Dnakaman said:
I understand what you are saying, but really what is the purpose?
Yes it will give you baseline as to how long your battery may last, if you just let it sit.
But what is important is how long it will last when being used. That number can vary greatly depending on how you use the phone.
It's kinda like EPA estimates on cars. Does a car that says it gets 34 mpg really get 34 mpg based on the way you drive?
Click to expand...
Click to collapse
Yeah, it differs a lot the way we use it. But when we are not using it (when the phone is in idle/standby) it should only depend on the phone's setup (the conditions i mentioned in the OP). Esp in 4G. I was just trying to make sense if the HTC thunderbolt in 4G coverage can lose 20% charge when its idle for 8 hrs.
I have never been in 4G until now.
maxnicks said:
I lose 15-20% overnight. dasBAMF 2.5. MR2 radio.Clocked down to 6xx MHz in screen off mode.
Click to expand...
Click to collapse
Are you in a 4G area too?
onyx_64 said:
Yeah, it differs a lot the way we use it. But when we are not using it (when the phone is in idle/standby) it should only depend on the phone's setup (the conditions i mentioned in the OP). Esp in 4G. I was just trying to make sense if the HTC thunderbolt in 4G coverage can lose 20% charge when its idle for 8 hrs.
I have never been in 4G until now.
Click to expand...
Click to collapse
Understood. I'm currently in a 3g area only, but I will be traveling to a 4g area next week (Viva Las Vegas). I know what my normal daily usage is roughly, I'll see if my battery is getting hit any harder since I'll be there a few days.
I just turn off mobile data and put the screen to dim. If someone really needs something, they'll call, and I don't need to know that someone liked my facebook status at 2AM.
On CM7 v0.4 I lose maybe 3-5% over an 8 hour night.
Dnakaman said:
Understood. I'm currently in a 3g area only, but I will be traveling to a 4g area next week (Viva Las Vegas). I know what my normal daily usage is roughly, I'll see if my battery is getting hit any harder since I'll be there a few days.
Click to expand...
Click to collapse
Thanks a lot dude. That should def. help. Have fun in Vegas!
onyx_64 said:
Thanks for the replies guys.. I just want to figure out how the power consumption in my phone compares to others.
@Benny
Yeah, i unplug the phone and dont let it charge overnight. Though the charging cuts off after its full, it can resume when it drops a little.
http://lifehacker.com/5789794/avoid-frequent-discharges-to-extend-your-phone-or-laptops-battery-life
@dnakaman & abn75
Well, I meant overnight, just to get a period of ~8hours in standby. Since you have it plugged in overnight, just let me know the amt of charge you lose, when you keep the phone in standby without using for a long enough time.
@goos3y
I thought abt that too, but its not the 184Mhz.. coz I was getting good enough charge retention just before my area went to 4G. So this thread is to mainly compare 4G standby power dissipation actually.
Click to expand...
Click to collapse
on a full charge at 2am when i go to sleep i wake at 7ish and i am down 25-30 percent no use wifi off no display...
running Das Bamf GB
studiorat said:
on a full charge at 2am when i go to sleep i wake at 7ish and i am down 25-30 percent no use wifi off no display...
running Das Bamf GB
Click to expand...
Click to collapse
Are you in a 4G area too?
onyx_64 said:
Are you in a 4G area too?
Click to expand...
Click to collapse
yeah 4g mostly everywhere in my state would that cause my drain its a 4g phone I assumed...( iknow ass u me...lol) the battery would be better on 4g instead of searching for it silly me!!
Keep it charged all night.
Sent from my ADR6400L using XDA Premium App
onyx_64 said:
Are you in a 4G area too?
Click to expand...
Click to collapse
Yes, I'm in 4G but I leave my WIFI on when I'm home.
I want to test a theory guys. Anyone else who feels they want to be a part of this feel free.
This is what I want to do. I want to test the actual draw of the screen in a normal days use over 2 days. The first day set to ~25%, the second day set to 75%. What I want to see is how many minutes at those brightness the screen was on. And the difference in the usage on the battery on those 2 days.
You don't have to be dead on with your estimation of time the screen was on, but try to be within a few minutes. If there isn't much of a difference then I believe the screen actually is pulling power while "off" and killing our battery unnecessarily fast.
There is no reason on 12 hours of battery, with screen on less than 30 minutes total that it should consume 65% of the battery! I don't actually see my battery drain 65% right before my eyes while it is on, so something has to be happening behind the scenes.
Edit 1: Post a screenshot of your results from both days. Tell me what connection type you used through the day. What ~% your screen was set to on both days. I only need the screen percentage changed, as long as everything else is consistent it is irrelevant to this test.
Day 1 do a low 20-30% brightness, day 2 do a high 65-75% brightness.
Edit 2: I just realized that when under battery use you can click the specific process (here being Display of course) and it will give you the exact amount of time used by the screen. If you guys could, please post both screenshots, as well as give me the accurate amount of time the display used battery.
AtLemacks said:
There is no reason on 12 hours of battery, with screen on less than 30 minutes total that it should consume 65% of the battery! I don't actually see my battery drain 65% right before my eyes while it is on, so something has to be happening behind the scenes.
Click to expand...
Click to collapse
I don't know if you ever had the original Dinc (I see an Inc 2 in your sig) but on stock ROM that phone constantly reported 60%+ Display usage no matter what you were doing, even lightly used. I crank my brightness down to like 20% permanently. I don't use it outside, so I don't need it super bright. Did it on the Dinc, and I'm doing it with the Rezound. Usually see display around 30-40% unless I'm using it heavily.
And it's not consuming 65% of the entire battery, that is 65% of the total drain is attributed to the display. SO if your battery has gone from 100 to 90% in 30 minutes, and 65% of that is display, your display has drained 6.5% of the total battery.
This is why I said over a day dude. I didn't say tell me what it says right now. If you don't want to be involved in the experiment don't bother posting in this thread. That goes for everyone. I stated 65% of the total consumption. If you really think I am an idiot don't waste mine or your time posting because you will just piss me off and I will report your posts.
If you had read the post correctly you would understand that I get 12 hours or less of battery life while only using the screen for maybe 30 minutes out of that 12 hours. Yet it reports 65% of the consumption is due to the screen even on 20% brightness. Theoretically that means I should be able to use my phone screen for 30 minutes straight and should be able to watch my battery drain 65% in that 30 minutes, which it does not. Therefor there is something else pulling power either stating it is the screen, or the screen is drawing power when off.
Hostility unwarranted. I misread your post, simple explanation.
I'll try cranking my brightness up and see what I get over a day of moderate use, how about that to make up for it?
Lol, Sorry man, I haven't seen you post here before. There are so many members who just post to post. Everyone has their 2 cents, you know what I mean
Appreciate it though!
I'm willing to try this. I'd have to start tomorrow. I also have a few basic questions.
1. How are you estimating time screen is on? Is there a way to do it other than just me paying attention? Cuz that's hard for me.
2. Does that stats page need to be reset at the beginning of each day? Also, where the hell is that thing? I've been to every setting on this phone exploring it and then when I want to find something again I can't!
3. Does it matter what power mode the phone is in?
And I was thinking to add to the test it might be interesting to see what having the screen on "automatic" would do.
1. I don't know of a surefire way, if someone else knows let us know! Otherwise, just a rough estimate is fine 30 mins ~35 minutes really. As long as you don't overshoot too much.
2. You don't need to reset the stats, they do it automatically after being on the charger for an extended period. So if you charge overnight and take it off it will only show from when the phone was disconnected. Settings >About Phone > Battery >Battery Use.
3. Power mode should have no relevance. But I am using "normal".
You're going to have to specify if WiFi or 4g/3g is to be used. I have noticed over the past few days that 4G consumes roughly 1.5-2%/hour less battery than WiFi does. On my Dinc, WiFi would draw a lot less power over time than 3G, but not so with the Rezound. So now I leave it on 4G while it sits idle at work unless I need to download something big, in which case I'll switch to WiFi, even though I have unlimited data and technically don't need to care lol. But I found that with WiFi and 4G both on and WiFi connected, my phone was burning like 5.5% per hour of battery. With 4G on only, I'm going through ~2.5% per hour (these are both with the phone sitting idle, usually in the morning when I'm busy at work). That's pretty much what my Dinc was doing on Wifi. I'll have to try it sometime with WiFi only on, and 4G off to see what happens.
But regardless, please specificy WiFi or 4G. Any testers that volunteer for this will need to leave that connection on as their sole connection during the duration of the test, save for a few mins of variance here and there.
Doesn't seem that should affect how much power the screen itself uses though. He just wants to test screen battery usage, not overall battery usage.
EDIT: Oh, if we are talking percentages then yes, it would matter. I generally leave my phone on 4g unless it decides to turn it off. And I switched to wifi a bit ago since I was required to to download an app from Amazon.
rboddy said:
You're going to have to specify if WiFi or 4g/3g is to be used. I have noticed over the past few days that 4G consumes roughly 1.5-2%/hour less battery than WiFi does. On my Dinc, WiFi would draw a lot less power over time than 3G, but not so with the Rezound. So now I leave it on 4G while it sits idle at work unless I need to download something big, in which case I'll switch to WiFi, even though I have unlimited data and technically don't need to care lol. But I found that with WiFi and 4G both on and WiFi connected, my phone was burning like 5.5% per hour of battery. With 4G on only, I'm going through ~2.5% per hour (these are both with the phone sitting idle, usually in the morning when I'm busy at work). That's pretty much what my Dinc was doing on Wifi. I'll have to try it sometime with WiFi only on, and 4G off to see what happens.
But regardless, please specificy WiFi or 4G. Any testers that volunteer for this will need to leave that connection on as their sole connection during the duration of the test, save for a few mins of variance here and there.
Click to expand...
Click to collapse
You are describing exactly the opposite of my experience with 4G vs WiFi battery consumption.
Hmm, interesting. Maybe I just have really good 4G signal? I too thought it was weird, given my experience with the Dinc being exactly the opposite of the Rezound. Trust me, I'd love to know why it happens that way too lol. But again, I shouldn't care because I have unlimited data, and the 4G is faster than the WiFi here at work and about as fast as my home connection (I average on the lower end of the 4G scale, about 10-15Mbps), so I'll probably just leave it on 4G for now unless I'm at home and need to FTP to my laptop or something.
And feralicious, I agree to an extent, but to get truly accurate results we at least need to know what X person was using for data over Y person, since both connections will draw power at a different rate. The only other accurate way to do it would be to keep the phone in airplane mode. And since he's using approximately 5% per hour of battery, whereas I'm using 2-3%, maybe he's on Wifi where I'm on 4G. As in any testing you need to have a control along with the variables, and the data connection is a big variable that could easily be made a control. Just my $.02
rboddy said:
Hmm, interesting. Maybe I just have really good 4G signal? I too thought it was weird, given my experience with the Dinc being exactly the opposite of the Rezound. Trust me, I'd love to know why it happens that way too lol. But again, I shouldn't care because I have unlimited data, and the 4G is faster than the WiFi here at work and about as fast as my home connection (I average on the lower end of the 4G scale, about 10-15Mbps), so I'll probably just leave it on 4G for now unless I'm at home and need to FTP to my laptop or something.
And feralicious, I agree to an extent, but to get truly accurate results we at least need to know what X person was using for data over Y person, since both connections will draw power at a different rate. The only other accurate way to do it would be to keep the phone in airplane mode. And since he's using approximately 5% per hour of battery, whereas I'm using 2-3%, maybe he's on Wifi where I'm on 4G. As in any testing you need to have a control along with the variables, and the data connection is a big variable that could easily be made a control. Just my $.02
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Click to collapse
Yeah, I just realized that and edited my post, didn't see you had responded.
For the record, 4g seems to pull more power than wifi for me as well.
Just post a screenshot of your results, tell me the amount of time your screen was on, and what your primary connection was. This is the only info I need. Your connection will only minutely affect the percentage that the screen draws. I only want to know the difference between screen high and screen low. So long as everything else is consistent on your end your results should be accurate for what I need.
Looks like I have to extend it out a day. I set my phone to 75% brightness and go figure it is the day that the network is having outages. My battery lasted ~2 hours today doing nothing.
Wow. 2 hours?!?! Will start the official test tomorrow as well but for the record my screen was also at 75% and I got almost 10hrs and I texted, shopped for and played with apps and watched a few app videos. I turned on wifi for a few hours due to network outtage.
Posting results even though they're not considered official. My screen was on approximately 1-1.5hrs in my estimation.
Sent from my ADR6425LVW using Tapatalk
AtLemacks said:
Looks like I have to extend it out a day. I set my phone to 75% brightness and go figure it is the day that the network is having outages. My battery lasted ~2 hours today doing nothing.
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Click to collapse
lol I woulda been in the same boat, if I didn't have a coworker alert me that 4G was out. I hadn't looked at my phone all morning, and woulda had a dead phone from it constantly looking for a 4g signal.
punman said:
You are describing exactly the opposite of my experience with 4G vs WiFi battery consumption.
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Click to collapse
Ditto!! I get way better life with wifi!!
As for the OP, good luck! I do not have time but I am interested in the results!
feralicious said:
Wow. 2 hours?!?! Will start the official test tomorrow as well but for the record my screen was also at 75% and I got almost 10hrs and I texted, shopped for and played with apps and watched a few app videos. I turned on wifi for a few hours due to network outtage.
Posting results even though they're not considered official. My screen was on approximately 1-1.5hrs in my estimation.
Sent from my ADR6425LVW using Tapatalk
Click to expand...
Click to collapse
Wow! That is good curve for 1-1/2 hours!
nosympathy said:
lol I woulda been in the same boat, if I didn't have a coworker alert me that 4G was out. I hadn't looked at my phone all morning, and woulda had a dead phone from it constantly looking for a 4g signal.
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Click to collapse
I had no idea, my phone was in my pocket and I was busy all day. Never felt it ever get warm, pulled it out of my pocket when I had some down time to check my G+/FB/Twitter and BAM.. phone wouldn't turn on. Luckily a friend had a charger and let me hook up. Turned on the phone to see the battery had actually died. I took it off the charger at 11:30 and it was dead before 2.
didiwags said:
Ditto!! I get way better life with wifi!!
As for the OP, good luck! I do not have time but I am interested in the results!
Click to expand...
Click to collapse
Thanks, I will be trying high brightness again tomorrow.
I couldn't get a reliable test because I had a stupid setting left over from my experiment with Economy mode that turned WiFi off after 15 minutes, so my data is skewed a bit from the first day to the second. (Plus the roving 4G outages caught me last night and my battery went from full to 5% overnight.)
Also, I use an app called SystemPanel (bought the Pro version) which gives me nice plots of my usage and screen on time, if you're interested in more data like that, you could look into it.
I just realized last night if you click the process in the battery use window that it will show the time that process uses power. Soooo.... I need everyone to start from scratch and give me the accurate amount of time the screen shot is on, for both dim and bright settings. Sorry guys! OP updated.
I switched to AT&T last week from T-Mobile to get the Note. Overall the AT&T service has been good and the Note is great! My only concern is battery drain in no signal areas.
Specifically, I went to a movie last weekend and the theater was in the basement and there was no signal. At the start of the movie I had about 95% battery but by the end my battery was dead. I'm guessing the battery drained because it was constantly searching for a signal.
Is this common for the Galaxy Note? Is it common for AT&T? I ask because my t-mobile phones never did this. I've been to this theater many times, always had no signal, never had any battery drain on any t-mobile phones (sensation, galaxy s 4g, hd2, my-touch).
FWIW, my Note was completely stock but was rooted. I've since flashed UCLE2 and noticed the same drain in low or no signal areas. I'm sure I'll get suggestions to turn airplane mode on, or something like that. While I appreciate those suggestions I'm trying to determine if this is common to the phone or AT&T. I don't think I should have to switch off data/radio anytime the signal is low for fear of my battery draining in 2 hours.
Thanks!
While the battery does drain more with no signal, due to scanning for a network, as long as there is a signal it should be comparable to full service. That's a constant signal mind you if it goes in and out it is scanning.
I work downtown in a brick building surrounded by high rises, i get 1 bar in my office, my battery lasts me an entire work day.
What I did, spend the money on extended battery
Yeah I know you think 2500 mAH should be pretty good, but isn't, just spend the money on extended battery. Am at 26 hours, with fairly hard use, on Mugen 5400 mAH and have 15% remaining. Does add some depth to it, but that is the price, daughter ordered me case that fits over extended battery can't wait till it gets here. If you are interested can post pics once the case is here so you have idea on overall look.
Would no signal cause that much more drain? In the theater there was no signal. I couldnt browse or make a call. If memory serves there was a circle with a line through it where the 4g symbol would normally be. Still seems like an excessive amount of drain.
__McB__ said:
Would no signal cause that much more drain? In the theater there was no signal. I couldnt browse or make a call. If memory serves there was a circle with a line through it where the 4g symbol would normally be. Still seems like an excessive amount of drain.
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Click to collapse
Oh yeah, if it is constantly looking for signal, will suck a battery down in no time. Job has me go to places in the mid-west, my supervisor and I just know to put in airplane mode or turn off in certain places or we will have bricks due to quick battery drain.
vanemburghj said:
Oh yeah, if it is constantly looking for signal, will suck a battery down in no time. Job has me go to places in the mid-west, my supervisor and I just know to put in airplane mode or turn off in certain places or we will have bricks due to quick battery drain.
Click to expand...
Click to collapse
Interesting. Is this something unique to AT&T's service? I never had this occur with tmous. Maybe I'm just lazy but having to track if I have a signal all the time for fear of my battery draining that fast doesn't seem right.
__McB__ said:
Interesting. Is this something unique to AT&T's service? I never had this occur with tmous. Maybe I'm just lazy but having to track if I have a signal all the time for fear of my battery draining that fast doesn't seem right.
Click to expand...
Click to collapse
Not unique to AT&T, but once you figure out where you get no signal it becomes automatic reflex to go into airplane mode or turn off. Would assume since AT&Ts network coverage is larger than Tmobile would not occur as much.
just got one for me and bro.
i got no signal half a day during work and it keep searching for it.
by time i finished, lost about 5-10% most.
OutCastedSheep said:
just got one for me and bro.
i got no signal half a day during work and it keep searching for it.
by time i finished, lost about 5-10% most.
Click to expand...
Click to collapse
Wow. Big difference from what I saw. I think I'll need to go back to the theater now that I'm running UCLE2. I'll install CurrentWidget and see what is going on.
Maybe it was a fluke...hopefully cause I love this phone!
what are others thoughts on some of the pros and cons of this update? i'm thinking it will actually save battery to have wifi 'always on' in standby mode rather than repeatedly switching between a on/off state which uses more energy.
It will definitely eat more battery if it's always on under the lockscreen...
Also there is an option to deactivate notifications when new wifi hotspots are around.. if you are about battery life you should deactivate this..
Ikkari said:
It will definitely eat more battery if it's always on under the lockscreen...
Also there is an option to deactivate notifications when new wifi hotspots are around.. if you are about battery life you should deactivate this..
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Click to collapse
I keep my Wifi always on because it consumes the least battery (vs 3G, LTE, etc).
If I don't play games on my Lumia 920 the battery can last 3 days.
This update is freezing my phone Dunno why but I have tested it. I occasionally get a freeze now and then, but when the keep wifi is on, it is like every couple of hrs... Will test it more though.
Ikkari said:
It will definitely eat more battery if it's always on under the lockscreen...
Also there is an option to deactivate notifications when new wifi hotspots are around.. if you are about battery life you should deactivate this..
Click to expand...
Click to collapse
Wrong unless your phone is using 5-year old wifi chip.
Correct me if I am wrong, but is the wifi on this phone an on demand type system? From what I see on mine, the wifi unless being used for an actual update or downloading other content goes to sleep when the lock screen is on. It then wakes up if there is an update pushed to it or if something else needs it or of course if you unlock the phone. At least that is the way it appears that mine works.
Also your radio service are going to use much more power than the wifi will as they are higher power transmitters and receivers. There is a reason wifi only works within a few hundred feet and radio works for several miles that is due to the power difference. Of course with more power you get more battery consumption.
In the case of conserving the battery you are better off to use wifi when possible, leave it on and let the phone control it.
In my experience keeping Wifi on permanently lead to a remarkable decrease in battery life. That will depend on where you are though. If I have it sitting at home where it has Wifi connectivity it's likely that I would see better battery life because all actual transfers will happen via Wifi. At work though it can't connect to the Wifi network (private phone, work network) and so I have 3G running anyway while the phone keeps looking for Wifi networks to connect to.
The problem boils down to the fact that while you can switch off Wifi completely because everything can still work using 3G you can't switch off the phone part completely because only data is done over Wifi but you still need the mobile connection to receive calls/SMS.
I would suggest to anyone to simply try out what works better for them. For me it worked best to let Wifi deactivate automatically as it had been the default in WP since WP7 came out.
foxbat121 said:
Wrong unless your phone is using 5-year old wifi chip.
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Click to collapse
Maybe Wifi is using less power when you are downloading something and need a lot of data... But when your phone is idle... Constant on Wifi is using far more battery power than 3G that checks for email or weather every 1-2 hours...
Simple enough...if you are consistently in an area with a WiFi signal, leave WiFi "always on"...it will consume less battery. If you're in an area without WiFi signal then turn it off, as searching for a signal will help run your battery down.
Sent from my LG-E970 using Tapatalk 2
Ikkari said:
Maybe Wifi is using less power when you are downloading something and need a lot of data... But when your phone is idle... Constant on Wifi is using far more battery power than 3G that checks for email or weather every 1-2 hours...
Click to expand...
Click to collapse
Again, simply not true unless you are using a 5-year old phone. Even if you are in an area that has no wifi connection, the extra drain caused by searching for Wi-Fi networks is minimum in a modern OS and modern chipset. I have left all my android phones (the ones that offer Wi-Fi always on feature for a few years now) wifi on all the time. Never have felt much difference vs if I turn wifi off. It annoys me that WP didn't offer this capability for so long.
foxbat121 said:
Again, simply not true unless you are using a 5-year old phone. Even if you are in an area that has no wifi connection, the extra drain caused by searching for Wi-Fi networks is minimum in a modern OS and modern chipset. I have left all my android phones (the ones that offer Wi-Fi always on feature for a few years now) wifi on all the time. Never have felt much difference vs if I turn wifi off. It annoys me that WP didn't offer this capability for so long.
Click to expand...
Click to collapse
I tested a lot of phones Android and WP, my experience is that wifi always on is a battery killer... And I'm talking about state of the art hardware... It's just my 2 cent's but i keep it off...
When I don't charge overnight and wifi is always on my battery drops about 40%
with only 3G on about 8-10%
Foxbat: you can leave it any way you want to do it. I'm not saying Microsoft should remove the feature. But in my experience keeping Wifi on kills the battery faster. I tested it for my use case with always on and with Auto and in the end: Auto it was for me.
The best advice you can give to people is: try it out yourself and you will see what works best for you.
A picture or two says it all. See the attached files for my two testing: one with wifi always on for 24-hour and one with Wi-Fi in auto mode for 24-hour:
The right picture shows 0.0%/hour under current discharge rate... pretty impressive
Ikkari said:
The right picture shows 0.0%/hour under current discharge rate... pretty impressive
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Click to collapse
The keyword is 'Current' -- means at that moment. You can derive the same thing from the left in various sections. The key here is that I don't see any discernible difference. Certainly not a battery killer in any sense as you claimed.
If you look at the first 12-hour period of both chart (when the phone is mostly sleep and not used), the result is almost identical. FYI, there are three push emails connected all the time: Hotmail, GMail and Corporate Exchange Email.
Yes the keyword 'Current' -- means at that moment... so your phone is not discharging although your screen is on... Very accurate app...
Ikkari said:
Yes the keyword 'Current' -- means at that moment... so your phone is not discharging although your screen is on... Very accurate app...
Click to expand...
Click to collapse
So, what you saying is that if you have the screen on, you will see your battery percentage drop immediately? You should return your phone if that is the case.
Battery app get its information from the phone OS reporting. If the OS reported the same battery percentage over a short period of time, the discharge rate won't be anything other than zero. That's limitation of the platform, not app.
Instead of criticize the app which is not the point of the post, why don't you post your findings where leave Wi-Fi always on kills your battery?
it' % per hour... and your phone is using currently using 0,0% per hour so if you leave it like that it will run for ever... so where is the mistake?
Ikkari said:
it' % per hour... and your phone is using currently using 0,0% per hour so if you leave it like that it will run for ever... so where is the mistake?
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Click to collapse
% per hour is a unit of measurement. It doesn't mean you have to take one hour to measure it in order to claim its rate. That will be average rate on that hour, not current rate which is meant to see what your current usage pattern is. It can't be used to predict your battery life. If you notice that when you take your phone off the charger, it will stay on 100% for quite some time before it starts to drop. Does that mean your phone battery can last forever? Think about it before post these ridiculous statements.
Foxbat - you are trying to tell us how our devices should behave while we are telling you how they actually behave in the real world out there. You can repeat your 5 years story as often as you want to but it clearly doesn't live up to the factual reality we experience every day and I guess after trying it out with different ROMs on the 920 and leaving all other settings the same I know the effect it had pretty well.
Nice to know though that you are having a different experience with different devices.