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This is not a battery thread. I just wanted to do some maths based on some findings of my own.
I post this screens, taken at 50% battery. I rebooted when full battery for a fresh graph. I'm running "stock" 2.3.4 KG1. Data is always on, two push mail accounts, display on Auto, no gaming, no photos for today.
So, if the graph are accurate (I really doubt that):
1. 17 hrs 38 mins total time on for 50%
from this:
-1 hr 48 mins phone calls
- 45 mins Android OS
-1hr 2 mins display on
-Android system (the thing responsible for widgets, push mail and so on, basically for apps) 7 mins 50 secs!
-Phone idle 16 hrs 35 mins. TIME WHEN NOTHING IS SUPPOSED TO BE RUNNING IN CPU FOREGROUND
- Navigon comes up with 11% BUT I NEVER USED IT- and there are no details on CPU usage either.
- I used 20 mins of sync Wifi for the later part of today, wifi doesn't show on the graph- no clue why.
Here I stand pretty puzzled:
1hr 48 mins of calling + 16 hrs 35 mins of idle is 18 hrs 23 mins! assuming that idle does not include when calls connected and screen off .
Here are the figures for the AOS and how life would be without it.
Android OS chewed 14 % of the 50 % battery. Calling ate 43% for 1 hr 48 mins. If it wasn't for AOS bug, I would have had power to call for some 36 more mins to get to the 50% battery. That's like 30% more talk time without the bug.
Display, set on auto, drained 10% of power for 1hr 2 mins. Android OS bug stole almost 30 mins of display time for every hour . This is 50% wasted power.
Phone Idle is 4% for 16 hrs and 35 mins. So, basically, every minute under raging AOS eats 0.31% of battery. for every 1% the phone idles for 4 hours and 9 mins (and ideal stand-by time of four and an half days ). EVERY MINUTE OF ANDROID OS EATS AWAY 1 HOUR AND 22 MINUTES.
Also, the Widgets and all other stuff are actually consuming half the power eaten away by AOS.
So, if by miracle, the faulty driver is resolved by Samsung, we should get :
30% more talk time
50% more display time
350% more idle time.
Or, for the connoisseurs:
Android OS comes in, battery goes flat. No miscommunication. You can't explain that.
Good post, my own experiences (i only have my GS2 a few days coming from a HD2)
I deleted my battery stats last night and left my phone on,data was enabled nothing like bluetooth/GPS,etc,brightness is set to automatic brightness the phone was at 99% and from 12.29am to 09.59am this morning when i checked it was 83%,not too bad i suppose but could be better, i have fast dormancy disabled and i froze the Samsung apps with Titanium Backup,however the Android OS was at 41% and Maps and Cell Standby both 15%, since then ive been using the phone for some Internet, 1 call and sent a few text messages and it's now currently 12.41pm and it's at 47% and the display now shows at 35% and the Android OS is 23%, im running Lite'ning ROM 1.5, does this seem normal or quite excessive im in 2 minds myself, does the Android OS usually be as high as that when in standby,when im using the phone for a period of time it appears to go down as low as 8%.
All I can say is, use ATK. Its just working great for me.
Regards.
Sent from GT-I9100
Thank you for this. It makes the problem clear to see. There are a lot of people saying things like "it all adds up to 100%" or "hey Android OS is high, but my battery life is very good".
As you say, we'd get much much better battery life if it weren't for this damn bug. Battery life can be good now. However with a 1650 mah battery, without Android OS wasting precious energy, it would be great...
Great summary!
More info
I have depleted the other 50% of battery so I'll post the values. The phone charged when connected to transfer the files. Well, at the end of the day, it looks like the that:
1. Voice calls drained 39% of battery for 3 hrs and 19 minutes.
2. Display is 2nd with 14% and 2hrs and 20 mins.
3. Android OS gets 3rd place with 12% and 1hr 20-this is the kernel running.
4. Android System- the one you bought the phone for- is pretty shy, only 9% . I repeat, here are all the widgets, Sammy updater, mail and so on.
...
Dialer is 6%, Navigon gets 8%, Cell standby - that's the radio FW- 5%
Phone Idle is the champ with 3% @ 31 hrs and 17 mins. That's the spirit.
Also, GPS status is eating 2,2% for every minute.
Bottom line: if it wasn't for the AOS, I would have had -see below( let's be real and give each process it's share so I'll split the AOS drain to get everybody happy)- before running for the charger .
1. Phone calls. 5.6% more battery- and 23 minutes more of talk time.
2. Display. 1.7% 22 minutes more.
3. Phone idle 0.9 % almost 10 hrs.
The rest of ~4% is shared for Wifi, Cell Standby and android system.
These numbers are valid for my usage pattern, phone calls all day long/ that's why i bought a phone for/.
I might draw some lines here and reveal some facts ( the values might be different according to usage pattern):
ONE MINUTE OF:
AOS bug drains 0.15%
Voice calling (I live on a good network signal area) depletes 0.13%
Display on is lower than calling @ 0.10%.
GPS could be chewing 2% when polled thoroughly.
Widgets and other Sammy crap are not scary at all. In fact, I find them pretty decent under this SW revision.
Maybe some will find these values useful.
Maybe we don't realize the impact of implementing a bad driver. For me, it all makes a lot of sense and annoys me more. Too bad we not on Icrap's ship, the news would have been all over the web.
One last thing though.
There are 2 main issues withSGS2: AOS and wake up lag. Never listen to any wise guy that says the lag comes from deep sleep and you should be lucky if you have it because it means the phone is SLEEPING and not eating away battery. I've noticed lately a trend in trolling this issue. I am confident that the guys behind this reasoning are on the same level with the guys that came up with Killing task managers and empty ram crap in Linux. And they even wonder why the alarm is not working after RAM flush.....
Wake up lag is a side effect of some nasty crap hogging the CPU's front bandwith. I bet any trolls here that when the lag is gone so will the AOS bug be ( at least AOS will be under Idle in %).
My wild guess is a radio issue somewhere.
same problem omg :S i hate this !! but phone is great !!
KG3 Report
Hi,
I have a new report to post, this time under KG3 stock rom. This time WI-Fi off whole time. I used the car dock for 10 mins.
1 day 7 hrs and 57mins from full charge to 15%:
Voice calls 2 hrs and 35 mins -37 %
Display on auto 2 hrs and 27 mins 20%
Android system 13 % Cpu total 10m 16 s
Android OS 9% 53 min 45 s
Dialer 6% C
Cell standby 6%
navigon 4% pops up,never used it
Phone idle 4%
Although it seems the AOS got less cpu with this, the improvement is not so clear. I almost talked 1 hr less with this one.
My android is 49% of 15 hour up time from last charge but the CPU time is only 2 hours 15 minutes for it. Hardly 49% of up time. Do you think maybe firstly there is no bug, its a bug with reporting not AOS usage time and that the phone hardware just eats a lot of juice even in standby. Just a thought. The battery lasts pretty good for the fact that its so small, there's an amoled screen and a dual core processor. Perhaps even in idle the hardware just draws a lot of power to allow a quick jump from standby to fully activated without any waiting around.
Sent from my GT-I9100 using XDA App
sohanlon07 said:
My android is 49% of 15 hour up time from last charge but the CPU time is only 2 hours 15 minutes for it. Hardly 49% of up time. Do you think maybe firstly there is no bug, its a bug with reporting not AOS usage time and that the phone hardware just eats a lot of juice even in standby. Just a thought. The battery lasts pretty good for the fact that its so small, there's an amoled screen and a dual core processor. Perhaps even in idle the hardware just draws a lot of power to allow a quick jump from standby to fully activated without any waiting around.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Could you post some screens?
Android system is 49%? the percents relate to the battery usage, not the time.
ALSO VERY IMPORTANT:
Dual core CPU should draw less power in standby/idle/sync. this is the idea behind dual/quad cores. If you have the time, read on how do they stack processes.
Deep sleep is not working properly. How come my WIN7 x64 wakes up in less than 1 sec from standby> win kernel is around 300 megs vs 17megs Android? It is a driver issue.
htc9420 said:
Could you post some screens?
Android system is 49%? the percents relate to the battery usage, not the time.
ALSO VERY IMPORTANT:
Dual core CPU should draw less power in standby/idle/sync. this is the idea behind dual/quad cores. If you have the time, read on how do they stack processes.
Deep sleep is not working properly. How come my WIN7 x64 wakes up in less than 1 sec from standby> win kernel is around 300 megs vs 17megs Android? It is a driver issue.
Click to expand...
Click to collapse
So instead of writing here, we should write to Samsung, correct? I hope this will be resolved soon, OTA update should do nicely!
tonycfc said:
So instead of writing here, we should write to Samsung, correct? I hope this will be resolved soon, OTA update should do nicely!
Click to expand...
Click to collapse
Believe me, I've tried the highest official way there is. They keep blaming android/google. I even pointed them some apps that were using obsolete scripts and 4-5 ro.* that were hogging the cpu. All they answered is that is under revision. then somebody from the work asked me what the f*** is this communication about and told me to use the nexus S instead.
Here the results of a simple test I did:
KG3, CF-Root, 8 widgets, skype and viber, 2 e-mail accounts. The usage was roughly the same (mostly internet browsing, e-mail cheking and only a few voice calls 20min approx.) The difference is that in the first day I left the sync and WiFi on all the time. On the second day, I left both sync (including background sync) and WiFi off most of the day, except during the time which I was using it (browsing internet, updating market apps, checking e-mail, etc.) The result, as you can see in the screenshots below, is that with sync and WiFi off, I've got almost 26h extra of battery life (18h18min v 1d19h52min). So, for me at least, the battery drain is WiFi+sync.
Looking at the pictures, compare phone awake v screen on. With sync+WiFi, you'll see that the phone was awake many times with the screen off, whereas it didn't happen when the sync+WiFi was off.
Therefore, I think it is better to turn sync+WiFi on only when you really need it, and not all the time. That's what I'm going to do from now on.
Ah, no powersaving settings enabled in any case!
Android OS @2%
Still under KG3, nothing installed lately, nothing at all:
Full battery in the morning almost flat in the evening with very light usage- I on a sort of holiday ....
1. 16h and 2 mins it lasted
2. 57 mins of calling
3. 51 mins of display time
4. Android OS WAS 2 % running for a total of 3 mins
REALLY SAMSUNG?
I want my AoS back.....
i rooted the phone yesterday, screen on time was around 4 hours or so..10% drain per hour average with screen on-off.
freeze all bloatwares and aos went down to less than 10% (was in 40s).
will see battery improvement today.
after root, i still got the yellow rectangle at boot (havent remove it yet)..will it affect battery life? any input?
I froze the WIFI Sharing service and my phone went from dying 25% over 4 hours at work with almost no use (and WIFI off) to lasting all day, or not charging at night and lasting all night and through the next day.
Just saying.
iwang;16719645s in 40s).
after root said:
No
there are instructions posted to remove yellow triangle in the root thread .
jje
Click to expand...
Click to collapse
iwang said:
after root, i still got the yellow rectangle at boot (havent remove it yet)..will it affect battery life? any input?
Click to expand...
Click to collapse
If you don't understand that the yellow triangle ONLY means that the kernel you have flashed does not have the correct signature (i.e. it is a custom kernel) then you shouldn't really be messing with root at all. How would this be relevant to the AOS bug or to battery life?
What is your view on juicedefender?
Battery savers are pieces of **** that turn help battery life by constantly changing the device on something more like Nokia soap.
My Personal view on software that claim to help save on battery was/is as it is about task managers on Android... somehow useless mainly for a few reasons:
1. They interfere with running processes and I haven't seen one really optimized for the system. Some are behaving limiting the performance. Which isn't a good thing.
2. I found that even Watchdog is a drain culprit when it's running after a limbo limbo process.
I have seen this issues before, in PC world. 8-5 years ago, Sony was loading their Vaio series with so much crap that the laptops were slow as a turtle right from a start up. They failed to listed then and lost almost 60% of their market. Others reacted faster and gave the option of removing crapware ( mainly proprietary sofware and trial) when ordering [ btw,of course, anybody could do it by msconfig but few were willing to mess it...].
I can't get it why Sammy, HTC, LG won't offer a barebone/unified Android. We could all get what we need from Market and this is why we have the markets war.
I don't want my update service running in background, nor do I need email app from Samsung...in order to get them off my back I need to root, Edit a file and make sure I mount the right permissions( or BUY something to do it for me) and so on, most people don't want/can't root , not mentioning the longer the chain the more links likely to break, including the warranty is voided ...WHY all the fuss to stop something I don't want?
Microsoft hit the nail in the head with their approach to WP7 (except closing it like Apple). That's because they had to deal with screamers for 20 years and they have a clue about crap ruining an OS.
And yes, I am still waiting to see a dev coming out with a pure Android Rom on whole XDA.... for any device. They all add something to it....a tiny tweak or a tiny thing.
After some searching, I can't find a thread dedicated to *just* battery life reports.
Lots of discussion and long rants/stories/theories/anecdotes/etc/etc.
Please answer just the facts:
Just TF201 Tablet or TF201 Tablet & Dock
From what to what including Dock values if applicable
Example: 100% (tablet/dock combined) to 15%tablet/30% dock, etc. etc.
How long: number of hours ran
Usage notes: what you're doing, idle, tasks, screen brightness, tricks etc.
Please just the facts
------------------------
HOW? use this free app to measure tablet/dock battery life:
https://market.android.com/details?id=org.flexlabs.widgets.dualbattery&hl=en
robomo said:
After some searching, I can't find a thread dedicated to *just* battery life reports.
Lots of discussion and long rants/stories/theories/anecdotes/etc/etc.
Please answer just the facts:
Just TF201 Tablet or TF201 Tablet & Dock
From what to what including Dock values if applicable
Example: 100% (tablet/dock combined) to 15%tablet/30% dock, etc. etc.
How long: number of hours ran
Usage notes: what you're doing, idle, tasks, screen brightness, tricks etc.
Please just the facts
Click to expand...
Click to collapse
I have been using my TP docked all day. woke up this morning at like 9 with 100 on both dock + tablet and have been watching anime since . It's 8 now and my dock is 0 and my tablet is about to die as well. I'm at about 40% brightness, I was expecting better battery life though.
Sent for my Transformed Transformer Prime :>
I get about 4-5 hours use from it doing simple tasks in low power mode.... 12 hours is a lie, if i use it on and off i can make it almost al day but that is with very minimal usage.
So i say u get about 5 hours low power mode and like 3-4 hours in normal mode ( nonstop usage).
jzen: I suggest you rma for that battery life, I have a lot of issues with the prime but battery is not one of them.
robomo:
tf201no dock, 100% charge, 80% superips brightness. gps off bt off, wifi on.
playing shadowgun thd, and watching netflix lasts me about 7 to 8 hours (full usage as passenger, no breaks except 5 min bio stops etc) on my ride from reno to las vegas using my droidx hotspot for wifi net while playing shadowing thd in dead spots.
rooted ics, stock cpu frequency no special tricks.
Here's my most recent battery report. Been using it for a little bit of everything, videos, music streaming, some games, other miscellaneous apps.
Sent from my Transformer Prime TF201 using xda premium
Tablet only
100% to 74%
2.5 hours
Wi-fi on, gps/sync/bluetooth off... eco-mode with backlight way down and streaming Internet radio (screen forced on whole time)
I ran mine pretty hard yesterday.
12.5 hours from 100% to 7%.
No dock, all tablet.
Watched some Dexter on Netflix, Recorded Video, used max brightness, power save, full power etc.
Surfed, Streamed, GTAIII, you name it. Used Bluetooth while streaming / gaming.
That is far more than i would ever do in a normal day.
Gotta say I am happy. My Tab 10.1 only lasted about 5-6 hours under similar load.
I guess if I averaged out each day with normal use I'm getting between 9 and 10hours in normal mode with the screen at 50 to 75% brightness. I do a lot of gaming and surfing. Since my Prime is new I'm still am doing a lot of customization. That will tail off a bit and I suspect my battery life should go up a bit. I have not rooted yet though. When I do charge it takes about 2 hours to go from under 10% to 100% on the wall charger and it turned off. I'm real happy with that.
Try this one on for size!!!
Here is my battery usage...though I will say that I am testing it for a battery spike usage so I did not use my prime at all during this time period...and you can see the issue I am having with the spike...but this is after a full charge with minimal use of just the browser from time to time....I am curious if anyone else is seeing this kind of battery spikes:
100%-29%
6 hours - at this rate I'd get roughly 8.5-9 hours out of a total charge
Tablet only, power save mode, screen forced on, low brightness, wifi on, bluetooth/gps off, streaming internet radio...
Tablet + Dock
100% tablet/100% dock to 7% tablet/0% dock
12 hours
listening to music, running TuneIn radio app in the background over wifi, screen forced on, lowest brightness.
bluetooth/sync/gps off.
Playing games, music playback, stream videos from desktop, youtube. prime only. About 7-8 hours on power saving/screen brightness 2 notch up from lowest.
Cheers!
Moderate usage juat tablet
23hr 67% left
sent from my AL60R!THM Atrix
I don't mean to go off topic (I will update this post with my battery info with dock after I go through another charge)
does anyone have bad idle with the dock after ICS? I lose 1% every 2 hours when its just sitting there screen off in sleep mode wifi off
slayer69 said:
Here is my battery usage...though I will say that I am testing it for a battery spike usage so I did not use my prime at all during this time period...and you can see the issue I am having with the spike...but this is after a full charge with minimal use of just the browser from time to time....I am curious if anyone else is seeing this kind of battery spikes:
Click to expand...
Click to collapse
Frequently, battery "spikes" are just where there's no data for a moment--in otherwords, if you reboot your Prime, during the reboot there's a gap in the battery recording data that then looks like a spike on the graph. It could be that.
Sure the prime can idle for 2 days or more but if your interested in actual batter life during use it is realistically about 6 hours of battery life on just the prime. The dock will help you to get another 4-6 hours.
Again, non-stop usage you will get around 6 hours battery life (gaming and netflix).
jzen said:
Sure the prime can idle for 2 days or more but if your interested in actual batter life during use it is realistically about 6 hours of battery life on just the prime. The dock will help you to get another 4-6 hours.
Again, non-stop usage you will get around 6 hours battery life (gaming and netflix).
Click to expand...
Click to collapse
I can constantly get 8 hours non stop usage out of mine with about 7-10% remaining.....just because something happens to you that doesn't mean we are all wrong or lying..at some point you need to realize the common denominator is you
Sent from my PG86100 using xda premium
THERE is no denying the battery life on this device is Great. WAY better than my Ipad with same type of usage. PRIME was rated at the top of tablets in battery life. Only a lil bit behind ipad2 but more than ipad1. IT clearly has the best battery life of any android tablet out there. AMAZING considering its also the most powerful tablet out now also.
demandarin said:
THERE is no denying the battery life on this device is Great. WAY better than my Ipad with same type of usage. PRIME was rated at the top of tablets in battery life. Only a lil bit behind ipad2 but more than ipad1. IT clearly has the best battery life of any android tablet out there. AMAZING considering its also the most powerful tablet out now also.
Click to expand...
Click to collapse
It kicks Chuck Norris' ass, straight up
12 hours of 100% screen on+wifi is a *tremendous* amount of battery life in a netbook-type form factor with the dock. There's only a few that could possibly come close, but not without sacrificing weight, size or horsepower or cost - $650 is simply amazing for this kind of device....especially now that Ubuntu has been formally chrooted onto it.
But usage styles, manufacturing defects, you name it, will influence battery life.
One guy reported only getting 4-5 hours of solid tablet-only battery life, which sounds like a manufacturing defect.
I'm also extremely interested in getting a baseline "real" number - sounds like 8-9hours is 'bout right for wifi/screen on 100%
Can't wait to start tweaking the hell out of it's software wise, underclocking, smart radio on-off.
I really believed ASUS' 18 hour battery life claim, however I'm curious what it's going to take in real life.
A lot of guys will overclock the Tegra3 for more performance - they're already doing that.
I'm the opposite - give me as little clock as possible and max out the battery life - I *really* geek out when I can eek out another hour
robomo said:
It kicks Chuck Norris' ass, straight up
12 hours of 100% screen on+wifi is a *tremendous* amount of battery life in a netbook-type form factor with the dock. There's only a few that could possibly come close, but not without sacrificing weight, size or horsepower or cost - $650 is simply amazing for this kind of device....especially now that Ubuntu has been formally chrooted onto it.
But usage styles, manufacturing defects, you name it, will influence battery life.
One guy reported only getting 4-5 hours of solid tablet-only battery life, which sounds like a manufacturing defect.
I'm also extremely interested in getting a baseline "real" number - sounds like 8-9hours is 'bout right for wifi/screen on 100%
Can't wait to start tweaking the hell out of it's software wise, underclocking, smart radio on-off.
I really believed ASUS' 18 hour battery life claim, however I'm curious what it's going to take in real life.
A lot of guys will overclock the Tegra3 for more performance - they're already doing that.
I'm the opposite - give me as little clock as possible and max out the battery life - I *really* geek out when I can eek out another hour
Click to expand...
Click to collapse
Well you know since we rooted already, you can use system tuner pro to manually lower the Max speed to increase battery life even more. It also has some presets n there which I think it has its own power savings mode also. It might even be better than Asus
Power savings mode. Haven't tried it out yet.
With all the questions and complaints on battery life, lets determine what your realistic expectations are with an Android Device.
Earthsdog said:
With all the questions and complaints on battery life, lets determine what your realistic expectations are with an Android Device.
Click to expand...
Click to collapse
I've only had one other android phone, and that was an Atrix. I got about 12 hours from each charge and 2 hours screen time--- compared to when I first got it when I got 20 hours and 3 hours screentime.
It seems like this galaxy note is going to be the same way so far -- although i REALLY want to be bale to get 30hrs and 5hrs screen time. Let's see if I can
s1mpd1ddy said:
I've only had one other android phone, and that was an Atrix. I got about 12 hours from each charge and 2 hours screen time--- compared to when I first got it when I got 20 hours and 3 hours screentime.
It seems like this galaxy note is going to be the same way so far -- although i REALLY want to be bale to get 30hrs and 5hrs screen time. Let's see if I can
Click to expand...
Click to collapse
Wow...Really? I had the Atrix as well and could get well over 30 hours of charge on it after about a year. The first few months I was seeing between 12 and 20 hours. For me it seemed the longer I had it the better the battery life was.
I'd frequently have it unplugged from 6 AM to 1 AM daily and have 60% left. That may be because all my usage came over a consolidated period of time and the rest of the time was light usage.
My first Android phone was the original Droid...I was able to coax around 24 hours out of it...but I was rooted with a custom ROM and a LV overclock kernel for it.
I'm hoping that I can get at least 14 hours with the Note on the same sort of routine...not so much this week because I don't want to put it down! LOL...my usage has gone from Light/Moderate to HEAVY...I fully expect to be able to hit this after a few more charge cycles (provided my usage goes back to normal...with the screen size I can see myself using this more than the Atrix, so we'll just have to see).
Over 20 hours of use with wifi, Bluetooth, LTE, auto-brightness, web browsing, video playing, texting, emailing and forum posting.
Yea, that's 5h 14m "screen on" time, too. 5.3 inch LTE device with those battery stats - yea, I'm happy. If your expectations are any higher you're delusional. 100% stock.
Sent from my SAMSUNG-SGH-I717 using xda premium
I want to select 14-16, but in this poll are you implying that at 16 hours I need to hit the charger or turn it off? This is rather subjective because I have a few friends that consider a phone "dead" the minute it hits 30%. Hell even the custom power saving profile is defaulted to kick in at 30%.
16 hours from my workday wake up time is only 11PM. I'd like to think if I decide to go out on the weekends I don't need to worry about charging up unless I've been using the phone like crazy throughout the day.
So we are at 10-12 hours so far in the poll. I hope we can get more input.
It's just $25 for TWO (semi-decent) spare batteries and a charger on Amazon... so no worries!
That said, the first few days with this phone have been rough! I've been using it so damn much that I have to plug it in at just 6 or 7pm when I get home from work. (DOH!) I'm sure my usage will go down a little after the honeymoon period wears off (maybe?). Luckily, though, my spare batteries are set to arrive today... so it's all good!
I just received my Rezound new yesterday, downloaded some apps from the market, and set everything up for normal use today. I got it off the charger this morning around 7:30am at 100% and its dead at 4:30pm. I would consider my use light today as I only used the web for maybe 10 minutes. I mostly did things like add contact shortcuts to my home screens and move icons around, and download maybe 2 new apps.
I came from a Droid 2 which got pretty awesome battery life running Liberty 3 and I'm wondering if my usage time is normal.
Total Time 8h 22m 33s
Display 80% (Time on 2h 45m)
Call Stand 5%
Phone Idle (Time on 5h 37m)
Android System 3%
Dolphin Browser 2%
Android OS 2%
Wi-Fi 2% (Time on 1h 38m)(I don't believe I was connected to any networks though)
Drop box 2%
The screen is what kills it along with LTE. If your screen was on for 2:45 that is why. The display sucks battery on this phone.
Thanks for the reply, I figured that was the case, but I still thought I would have gotten a little longer. I hope a custom ROM will help some with the battery life.
I am on stock rooted and don't really have battery issues. Typically I get 12-14 hours which by then I have easy access to power. If it is going to be a long day, I use the extended battery. It is not uncommon to still have charge left going into late at night.
I have the screen less than a third of the way on the selector and have Auto brightness turned off. Screen timeout is set to 1m but when I set the phone down, I have a widget called ScreenOff that I click to blank the screen. Primary reason for doing that is so I don't accidentally enter some app, but a secondary is that it turns off the screen before it would normally timeout.
When I am at home or at work, I use WiFi almost 100% of the time which due to strong WiFi signals there, (for me) uses less battery power than LTE.
Otherwise, I have LTE on.
Right now today, I am about 50% with 9h 12m of use. I fully charge nightly with the AC charger on my night stand so when I get up it is 100%.
I have an extended battery, but normally use the stock battery unless I know I am going to be away from the office for long periods of time.
I am not much of a game player, but I do watch short videos from time to time. I have streamed music, but don't normally. I get 10-20 calls a day typically and use my browser on a regular basis (reddit as well).
The camera is Awesome!
Unless your display was on max brightness and you were streaming HD movies. That's bad battery life. I get 2 times that even with autobrightness, maybe your battery isn't broken in yet
A good measure is 30minutes display time per 10%, and 1% per hour with 3G and normal sync scheduling... If your apps sync ever 15 minutes that will kill it, and 4G should kill it a little more than just 3G... Minor fluctuations are still OK, but you shouldn't have 15 minutes per 10% unless everything is basically on full blast
My battery life using the setup in my sig is usually very good.
I can easily make it through a normal workday listening to mp3s from my card/texting etc using the standard battery. My screen is set to 30%, screen timeout to 30 seconds.
I do like to stream audio however using iheart radio or Sirius radio online. If I do that, I'm lucky if I make it 4 hours on the standard battery (without ever turning the screen on) When I am going to do that, I use the extended battery and keep a 2nd one in my pocket. I have two external chargers I use so I always have spare fully charged batts.
I actually prefer the feel/weight of the phone with the extended battery and the HTCPedia cutout hard rubber case.. That gives me a better grip on the phone and I barely notice the weight difference when it is in a Jean pocket.
I guess it just depends on the actual phone itself. My phone charges everynight. I pull it off the charger at 6 am and by 10am the battery is dead. I have 3 batterys, and a wall charger that I carry around. I don't consider myself a heavy user either. No music or videos. Only text, gtalk, gmail and a phone phone calls that last a few min each. I only have google and exchage set to push. My 2 yahoo accts sync every 4 hours. I do have fecebook as well. Screen is very dim. This was all using rooted cleanrom.
I am now back to bone stock, with a CLNR phone that just arrived yesterday (due to connection problems with my computer) So maybe a stock rom unrooted will make a difference. Heres hoping!
Sad.....great phone, I love it!
con247 said:
The screen is what kills it along with LTE. If your screen was on for 2:45 that is why. The display sucks battery on this phone.
Click to expand...
Click to collapse
This. I was playing "draw something " with friends today at work and even with a fully charged extended battery it only lasted about 3.5 hours with the backlight at 100% and oc'd to 1.7 GHz. But that was constant usage for those three hours.
Sent from my ADR6425LVW using Tapatalk
brando56894 said:
This. I was playing "draw something " with friends today at work and even with a fully charged extended battery it only lasted about 3.5 hours with the backlight at 100% and oc'd to 1.7 GHz. But that was constant usage for those three hours.
Sent from my ADR6425LVW using Tapatalk
Click to expand...
Click to collapse
That game literally jumps out of your phone, and rips your battery in half. But its way too fun.
Sent from my ADR6425LVW using Tapatalk
Diff. Roms equal diff results for me. All of the ICS roms I've tried all keep my phone up time and awake time the same. Is anyone else having this issue? Due to this, I typically end up getting around 5 hours of life even if I leave my phone off for the duration of that time. It's annoying because I really want to stay on ICS but get double the battery life out of the GB Roms.
Joe_T said:
Diff. Roms equal diff results for me. All of the ICS roms I've tried all keep my phone up time and awake time the same. Is anyone else having this issue? Due to this, I typically end up getting around 5 hours of life even if I leave my phone off for the duration of that time. It's annoying because I really want to stay on ICS but get double the battery life out of the GB Roms.
Click to expand...
Click to collapse
On Scotts CleanRom 3.6, with fairly heavy usage (hour of solitaire, hour of browsing xda, texting, 30 minutes of phone calls) I can get about 10 hours before needing a charge again. Before I updated to 3.6, which has the 3.8v battery fix, I could only get about 5 or 6 hours of similar usage. I don't recall if prior versions had my awake and up times the same, but I haven't noticed it recently.
Sent from my ADR6425LVW using XDA
Screen is the sole battery killer for me.
I Am Marino said:
Screen is the sole battery killer for me.
Click to expand...
Click to collapse
same here and i never get consistent battery life. one day it will be dead in 9hrs and like today im going on 22hrs. just not overall consistent.
I Am Marino said:
Screen is the sole battery killer for me.
Click to expand...
Click to collapse
I take it you don't stream audio like I do??
I just got my Rezound yesterday, and have noticed a surprisingly poor battery life. I did all my setup yesterday, and fully charged the battery over night. After unplugging it this morning, I listened to music off the sd card for about 45 min, browsed the net for about another 45, then stopped using it for a while. I noticed the battery was about halfway through, so I plugged it in to my car charger and did some more Internet stuff. However, after checking the battery info, I realized that even plugged in to the car charger it was consuming more power than it was taking in. I finally had to turn it completely off and let it charge to get the battery from yellow back to green.
This is the same charger I used for my Droid X, so I know that it is working...
Sent from my HTC Rezound using xda premium
I've been running BAMF ICS v0.9 for a few days, and the other versions before that. I get 12-14 hours with 4G on, and 20-23 with 4G off....I keep the screen on 40% brightness
Watch your clock speeds if you are on ICS. They constantly Max out, both cores. That's where your battery life is going.
Sometimes data flickers for me on random days, that's the only thing that wears my battery down fast. But I can still go through the day have 40ish percent left. If it doesn't flicker I can go through through day with about 50% left. And if in on Wi-Fi most of the time I have nore than that left over. And that's with using the phone for a couple of hours with the display on.
Trying ineffabilis with DSBs 1.1.3 kernel and undervolt it some
for me, battery life killers can be streaming audio (sirius xm or espn radio) and definitely jelly wars. Phone will die on extended battery in about 4 hours of continuous play.
Otherwise, normal usage, I get 10-16 hours of use on my extended battery before swapping it out (use 2 extended batteries).
4g definitely runs the phone hotter than wifi (about 20 degrees hotter for me)
The only time my phone gets around 95 degrees is if it's on a charger and I'm watching a movie, and it takes about an hour for it to feel warm, which could even be caused from me holding it the whole time. 4G doesn't get my phone any hotter than 3G Or Wi-Fi. Guess every phone is different though. least we get signal xD
platinumrims said:
The only time my phone gets around 95 degrees is if it's on a charger and I'm watching a movie, and it takes about an hour for it to feel warm, which could even be caused from me holding it the whole time. 4G doesn't get my phone any hotter than 3G Or Wi-Fi. Guess every phone is different though. least we get signal xD
Click to expand...
Click to collapse
Thought I was done with heat after I got my replacement phone but the 4G hotspot Cooks! 120 is now a daily ordeal.
KORM via the beast known as the Rezound.
Hi
I have a question regarding the battery life on the prime.
ASUS advertise up to 12 hours on their website...
I'd expect to get at least half that with normal use..
How long does your battery life last with normal use?
Like ebook/pdf reading, some browsing, some youtubing and maybe some
light gaming?
I dont have much running on mine, i always try to kill backround processes.
I always have it on low brightness and turn the wifi off when not in use.
I usually dont make it much longer that 4 hours with light use... maybe 5 hours.
I use mine mostly for pdf/ebook reading. A little browsing/youtubing here
and there...
Is this normal or do I have a defective unit that I should replace?
Other than this I have no problems with the prime.
gezzybabalula said:
Hi
I have a question regarding the battery life on the prime.
ASUS advertise up to 12 hours on their website...
I'd expect to get at least half that with normal use..
How long does your battery life last with normal use?
Like ebook/pdf reading, some browsing, some youtubing and maybe some
light gaming?
I dont have much running on mine, i always try to kill backround processes.
I always have it on low brightness and turn the wifi off when not in use.
I usually dont make it much longer that 4 hours with light use... maybe 5 hours.
I use mine mostly for pdf/ebook reading. A little browsing/youtubing here
and there...
Is this normal or do I have a defective unit that I should replace?
Other than this I have no problems with the prime.
Click to expand...
Click to collapse
My wife and I get about 8 hours heavy use. Video, nook & browsing.
With similar/more usage than what you describe, I get much more than advertised...at 70% right now on performance mode at 7 hours at full brightness with wifi never sleeping. Keep in mind their 12 hours was playing video the whole time. I'm ridiculously impressed so far.
Sent from my Transformer Prime TF201 using XDA
I can't tell you exactly how much I get, because I never got down to under 20%. To be honest I mostly use it with the dock, watching video and browsing outisde (+IPS) on never ran into battery issues after 2-4 hours.
So I never every until now worried about the battery, it was just there.
it really does last quite well, im used to charging my phone up every night and i cant get this thing to drain quickly, i wanted to do some full drain cycles on the battery and it actually took hours and hours to empty it.
you wont be disappointed!
Honestly, coming from an Apple employee, it kicks the iPad's ass not only at battery life, but at charging too. This thing charges in just about the same time it takes to charge an iPhone.
Wow.. 8+ hours... I dont see that happening on my unit.
I think ill try a factory reset and if that doesnt help
I think i'll have to return it for a new one.
Thanks everybody for your comments
I get about 16 to 1 day and 6 hours with the dock (That's using it very wildly, meaning not sparingly).
I surf alot, watch videos, play games, test settings.
I use IPS+ sometimes only but most of the time I have my brightness level on about 70%
Cheers!
Well, just did a factory reset, down 6% already after ~25minutes.
I think i'll see if the store will let me return it because of
unsatisfactory battery life
I get like 6 hours on screen time generally....pretty bad. Probably a lot of bugs to work out with the tegra 3 still, hopefully Asus is working on it. I do not even do anything that intensive, just web browsing, chatting, taking notes, don't even watch videos or play games too often. Battery life would probably plummet if I played games.
NeroDan said:
With similar/more usage than what you describe, I get much more than advertised...at 70% right now on performance mode at 7 hours at full brightness with wifi never sleeping. Keep in mind their 12 hours was playing video the whole time. I'm ridiculously impressed so far.
Sent from my Transformer Prime TF201 using XDA
Click to expand...
Click to collapse
Wow.
With the screen on?
Could you possibly take a screenshot of the battery statistics?
I would really appreciate it so i could have something to compare to.
Or even anybody with similar results on their prime?
16,5 hours since charged, and i've got
2h40m Screentime
3h24m WIFI on
61% charged
Usage: Watching a movie, surfing, playing around with the system;-)
Fully charged at 1pm yesterday, after flashing Primulous from cwm touch, i have been benchmarking, browsing, took about 10 min of 1080p video, running wifi analyzers to configure repeater in my house, left on overnight, on balanced mode. Woke up at 5am, have been youtubing, browsing. Its 8:30 and battery just hit 20%
I AM IMPRESSED to say the least, battery life is so good due to running "minimal" when flashing Primulous, wasn't quite this good when on stock, with bloated apps
I have just about every tab on the market in the past 2 years. iPad, iPad2, Transformer w/dock, Acer, HTC Flyer, Kindle Fire, Galaxy tab 7, galaxy tab 10.1 and now the Prime w/dock. The Prime battery outlasts all of them except the gTab for me. I get about 2 days between charges prior to the dock and about 3 with the dock. Stats right now are at 70% tablet 92% dock with 10h 36m on batter and 2 hours of screen on.
With WiFi running at 10h and taking up 81%of the battery. I switched it off this morning to see if I get an improvement since I dont use it and I definitely see a HUGE improvement.
I've always had issues with leaving my WiFi on connected all the time. Lasts about 4-6 hours with WiFi on all the time. Now that I have it on JUST when the screen is on, it lasts about the good 6-9 hours. Anyone having this issue too?
gezzybabalula said:
Hi
I have a question regarding the battery life on the prime.
ASUS advertise up to 12 hours on their website...
I'd expect to get at least half that with normal use..
How long does your battery life last with normal use?
Like ebook/pdf reading, some browsing, some youtubing and maybe some
light gaming?
I dont have much running on mine, i always try to kill backround processes.
I always have it on low brightness and turn the wifi off when not in use.
I usually dont make it much longer that 4 hours with light use... maybe 5 hours.
I use mine mostly for pdf/ebook reading. A little browsing/youtubing here
and there...
Is this normal or do I have a defective unit that I should replace?
Other than this I have no problems with the prime.
Click to expand...
Click to collapse
With web browsing, ebook reading, and some YouTube I get 12-14 hours when my screen is set to "power saver" performance mode and with the screen at about 25% brightness. If I have the Prime plugged into the keyboard dock I get 15-18 hours depending on what I am doing.
First thing. Don't kill background tasks. Unless your Prime is seriously suffering performance issues you should ignore any background task that is running. Compulsively killing tasks will actually drain your battery faster. Do you have a lot of apps syncing? Twitter, Facebook, Instagram, etc? If so turn off the ones you don't use often or at least set them to update no faster than once an hour. Also, set the WiFi to turn off when the screen is off, this will improve standy battery significantly.
If you keep getting battery drain, before you return the Prime do a factory reset and see if that solves the battery drain. There could be some system process that isn't ending correctly and keeping the Prime awake. Factory resets are wonders at solving this kind of glitch.