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Well, this question is for my lucky friends who have their new toys
Battery life is so good?
Post your test here!
Don't have screens for ya but battery life is more than adequate. My gf and I used it for about 5 hrs last night and it dropped to about 45%
(Games, xda, Netflix, and just tinkering around)
I'm curious what kind of battery life you folks are seeing, now that you all have had time to get some real world experience with the NT.
Thanks!
10 hours of continuous usage with 25% brightness.
Sent from my HTC Mecha using Tapatalk
Yea, the battery life and responsiveness of the device is definitely top notch.
I'm pissed as hell the bootloader is locked, but this device is an absolute steal for $250 bucks. Especially if you can manage to discount that price down.
Extremely responsive and awesome battery life considering I'm running max brightness and wifi 24/7.
I'm always surprised when I'm done using the Nook that it was still running. Granted, I ran it until it had only had around 20% left. But hey, if your sitting in one spot using your nook for more than ten hours, then you need to find something else to do. ^_^
Lucifus said:
... if your sitting in one spot using your nook for more than ten hours, then you need to find something else to do. ^_^
Click to expand...
Click to collapse
Good book, nice day, under a tree? Done that many times just reading off my PDA.
Thanks for the feedback!
The battery life is definitely adequate.
I can usually go 2 day without charging thus far. I keep brightness at ~20% or so (I can't stand brighter, it actually bothers my eyes).
I also use multi-picture-live-wallpaper and it doesn't seem to drain my battery at all.
I do some pretty heavy use of it as I am reading on it and studying for med school for probably ~6 hours at a time
Battery life is great. BN's numbers seem dead on.
Lasted the flight from San Francisco to Sydney
I'm getting around 10 or so hours of use at 2/3 brightness. Battery life is amazing on this. I charged it last night. Took it off the charger at 10am didn't touch it till 10pm tonight. It was at 99 percent then. I think it turns off wifi when it's sleeping.
Drewmungus said:
I'm getting around 10 or so hours of use at 2/3 brightness. Battery life is amazing on this. I charged it last night. Took it off the charger at 10am didn't touch it till 10pm tonight. It was at 99 percent then. I think it turns off wifi when it's sleeping.
Click to expand...
Click to collapse
Yeah, it definitely turns wifi off on its own when sleeping
Yeah Ill echo the comments here, battery life is absolutely superb and the responsiveness of the unit for the price is fantastic. Sadly its a case of if only B&N....to fully realize what the tablet would be capable of.
I have to agree that battery life is amazing on this thing.
I've got wifi turned off full time (to avoid updates from B&N) and the battery just seems to last forever. Granted you always use less battery when you're not going online, but still, it seems to really really last.
Frankly it's making my phone quite jealous.
Umm, my nt's battery isn't as impressive as i hoped. I use 25% brightness, wifi on, no fancy live wallpaper. I noticed for every few minutes of sjurfing, battery would drop a percentage or so. For usage of about 3hr withoit wifi, i would use up about 40 %.
Anything i could do to tune it up a bit? I do noticed amazon appstore is always running, so is clock, contact, tb, and my yahoo mail app. Any help is appreciated.
rvr350 said:
Umm, my nt's battery isn't as impressive as i hoped. I use 25% brightness, wifi on, no fancy live wallpaper. I noticed for every few minutes of sjurfing, battery would drop a percentage or so. For usage of about 3hr withoit wifi, i would use up about 40 %.
.
Click to expand...
Click to collapse
That sounds about what I'm getting and I'm wondering whether it's defective or not (still within return window).
edit: Probably normal - ran into some threads on B&N's boards where other people are averaging 5-7 hours. If I idle / read, I get about 1% every 8-10minutes or so so B&N's time estimates were definitely not "video," "browsing" or "games." Wifi on, installing or rebooting a few times, it drops to 5-6 hours tops between 100% and close to 0%.
My phone gets -way- more time, even reading.
the battery on this is great one of the biggest things going for it. better than my phone for sure.
For you guys with bad battery life, you might want to try better battery stats. Then check for partial wakelocks. That's usually the culprit on my phone. It seems weird some of you are getting half the battery life of the rest of us. Personally I haven't even turned wifi off at all, and also haven't turned my brightness below half.
It's in the google market, it won't show up on the nook. I downloaded it on my phone then used the app share my applications then back up to sd. Upload to dropbox. Then download it with dropbox on your nook.
Drewmungus said:
For you guys with bad battery life, you might want to try better battery stats.
Click to expand...
Click to collapse
I looked at this (and other battery programs), but wasn't sure what they did. Now I sort of do. I'll check it out! Wifi on definitely uses up at least 20-25%ish extra battery, and I *have* been moving a ton of stuff to/from sd cards and uninstalling and rebooting a lot, but the above did seem very short. Too bad there isn't a battery hardware test
Failing those applications it may be worth doing a full reset; Especially since most other owners are reporting MUCH better results.
Before I start nuking things around, I used BetterBatteryStats, check for partial wakelocks, and the highest % is from ActivityManager-Launch, which occupies 0.3% or 5minutes or so since I fully charged it.
Also, i noticed "Wifi Locked" is extremely high, like 89%, whereas wifi On is only 26%. What does that mean?
I'm not fully versed in how Android handles power management. So what should i be looking out for? Thanks!
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.
Maybe someone can give some input about the following:
At work we have an iPad 1 and I've been monitoring it's battry drain in standby last week:
Full 6 days standby, with Wifi ON and not used in meantime:
battery went from 58% to 54%.
With my prime I get 2-4% during 1 night!
And that's even with Wifi turned OFF and docked (auto airplane mode app)
The dock looses about 1-2% each night
Why does the iPad have such crazy battery life in standby mode + wifi on? Is it all about good written software (iOS, drivers and apps)? Or is it hardware related? Or both?
In other words: will it ever be possible for an Android tablet to get such great standby time when ICS get more mature? Or is it already possible on other devices and lays the problem within hardware/drivers from Asus?
I really dislike having to use auto airplane mode, because I sometimes have to wait 5-10 second for wifi to get connected and ready. But with wifi turned on, the standby drain is even greater.
This didn't need its own thread. Should have posted it here.
http://forum.xda-developers.com/showthread.php?t=1534039
you might have some wakelocks
Sent from my sgs2 running cm9 using xda app
use better batter stats to see what's causing your issue. I get great standby battery life + wifi on. plus 2% drain isn't bad at all in one night. my prime can easily get over 20hrs. on a charge with off and on usage. I get about 10hrs. or so with moderate to heavy usage. about 9hrs. real heavy usage. battery life dependent on several factors. as far as standby goes, like the other poster said, you are experiencing system or partial wakelocks. cutting down the frequency of updates can help or solve this. everytime you asleep and device goes off from a notification, its woke up out of sleep. then eventually goes back to sleep. this is a repeated cycle which causes extra battery drain during sleep. because device never gets a chance to sleep long because its always being disturbed by notifications constantly going off.
demandarin said:
plus 2% drain isn't bad at all in one night.
Click to expand...
Click to collapse
I know that my 2% idle drain is quite good regarding to current prime and firmware/drivers, but how can a 2% drain in 8-10 hours be good when the iPad drains only 4% in 6 days (that's 144 hours!!) ?
The difference is HUGE, so that's why I wondered if it's bad coding in Android, drivers, Apps or maybe the used hardware that consumes just quite a lot more than iPad. Is 2% also common with other andoid tablets?
And if it's really software related: can and will it ever be fixed or at least reduced?
Edit:
When in standby my prime is always in "deep sleep" and I don't see any interuptions. But I sure will try better battery app.
Then again: this is all with wifi off and iPad had default settings with wifi on and still consumes way less
My ipad 1 have a great standby time too, comparing it to my Prime, My iphone 3gs has great standby time to comparing to my Galaxy Note. BUT it is too bad I didn't buy those stuff to be there looking pretty, I bought them to be able to USE them. If my stuff stays on standby a lot of time, seems like I really don't need it.
On my home network, I get about .3%/hour battery use on standby. I have wifi configured to stay on when the screen is off, and I have a number of apps that synchronize in the background (gReader, TweetCaster, email (X2 accounts), Gmail, a tasks app, calendar, etc.).
The worst standby that I get is on my work network, where I get between .5%/hour and 1%/hour. I believe it's something to do with the router at work, which also causes problems with my HP Envy 14 notebook. Note that the difference in standby life is absolutely consistent and quantifiable.
At .3%/hour, my Prime would last for 333 hours. At .5%/hour, my Prime would last for 200 hours. Worst case scenario is that at 1%/hour, my Prime would last for 100 hours.
Quite honestly, I'll take a Prime that lasts between 100 and 333 hours on standby while running all sorts of useful background tasks over an iPad that last for however long while running few if any background tasks. My Prime is more USEFUL to me that way.
And, even if the iPad runs the same sorts of background tasks that I've described here, 100 to 333 hours of standby is perfectly fine. Is it as good as an iPad? Clearly, not, in this case. But even so, it's also a distinction without much meaning.
why is it that all these people make ****ing mac/ios based threads?
serious if you don't like what you have bought... G T F O
p.s. stop the trolls ok? ipad ****ing sucks and what you claim is total bull**** anyway. 4% in 6days with wifi on dreams are there to be made.
fact: use that ****ty ipad turn on wifi and use it for 6-8 hours.
OMFG WHAT JUST HAPPEND? oh gaws....
now try with the prime
profit.
<edit>the topic of your thread... serious... your talking about 2 devices not even the actual software.. dip****</edit>
/end rage
Even if your using really clear, hard to see, mono filament, trolling is still trolling.
pvdwaal said:
Maybe someone can give some input about the following:
At work we have an iPad 1 and I've been monitoring it's battry drain in standby last week:
Full 6 days standby, with Wifi ON and not used in meantime:
battery went from 58% to 54%.
With my prime I get 2-4% during 1 night!
And that's even with Wifi turned OFF and docked (auto airplane mode app)
The dock looses about 1-2% each night
Why does the iPad have such crazy battery life in standby mode + wifi on? Is it all about good written software (iOS, drivers and apps)? Or is it hardware related? Or both?
In other words: will it ever be possible for an Android tablet to get such great standby time when ICS get more mature? Or is it already possible on other devices and lays the problem within hardware/drivers from Asus?
I really dislike having to use auto airplane mode, because I sometimes have to wait 5-10 second for wifi to get connected and ready. But with wifi turned on, the standby drain is even greater.
Click to expand...
Click to collapse
Its not an issue with Android because I can get 2 months on standby with my Nook Color running CM7. The tf201's standby time is likely due to things on the kernel level rather than Android.
dalingrin said:
Its not an issue with Android because I can get 2 months on standby with my Nook Color running CM7. The tf201's standby time is likely due to things on the kernel level rather than Android.
Click to expand...
Click to collapse
I was just going to post how crazy my nook color is with power consumption, but thats not the same level of processor that the Prime has.
Not sure if this has already been said? But iOS battery% behave very different than Android battery%. I noticed that when i got my first android device after using an ipod touch for a while. (that was a while ago so maybe things changed with iOS 5x never used that)
The iOS% will kinda adapt to your usage. If you play a 3d game on high brightness the battery% will go down pretty fast, but if you go back to standby they go up again. After some hour of gaming you can be down to 60% but after another one in standby it could go up to 80% again...
In general it feels to me like they lie "a bit". It could very well be that if you used said ipad it would drop to like 30% after 5mins of using. I found the way it behaves very annoying. But as I said that was on my ipod touch, maybe the ipad is different.
Android battery% are much more "direct" but also more accurate in my opinion. With my ipod I never knew how much juice is really left. With my phone or tablet now i know exactly what i can do until it shuts down.
That being said, i'm pretty sure there's still alot of room for improvement with the prime. The software is just an early version basically - all they did up to now is make sure everything works more or less and that its stable for most people. I'm confident the next patch will make things alot better in many aspects.
And i wonder how my prime will be like in half a year with a perfect custom rom
Ready2Mosh said:
I was just going to post how crazy my nook color is with power consumption, but thats not the same level of processor that the Prime has.
Click to expand...
Click to collapse
That's true, but isn't Teg3 and the new Pad line supposed to be fairly efficient?
With the majority of my time spent at the lowest clocks, the drain I get does seem kind of ridiculous. That opinion stated, here's another: the battery-life on the Prime is still fantastic. I can almost push it an entire work-week on one charge so long as I'm not trying to game or anything, that's a pretty stout stand-by for most electronics. The OG iPad just happens to be so underwhelmingly powerful that its standby is much greater.
I personally believe that to coax away the random locks/reboots they raised the voltage values so that we're drawing unneeded power; however, I for some reason have not ventured into my Prime to see what they have the values set to so I have nothing to back this up. Just a guess.
Ready2Mosh said:
I was just going to post how crazy my nook color is with power consumption, but thats not the same level of processor that the Prime has.
Click to expand...
Click to collapse
If its truly in standby/sleep then the processor should be essentially off. In the case of the Nook Color the primary CPU can power off entirely.
The issue is the dock, when mines not docked it can idle for over 60 days (according to battery widget app) and when it's docked I lose over 10% a night or more
d1ez3 said:
The issue is the dock, when mines not docked it can idle for over 60 days (according to battery widget app) and when it's docked I lose over 10% a night or more
Click to expand...
Click to collapse
The dock is not the issue, neither is Android and neither is the processor. It comes down to what apps you're running, live wallpapers, radios, etc. Or just good ol' fashioned faulty units...or poorly built ROMs/kernels.
I'm running stock, rooted .15 with performance mode on always. When I wake up in the morning, I unplug my docked Prime before I go to work. When I get home 10 hours later...dock is at 100% and Prime at 99%. That's with dock connected, performance mode, bluetooth wifi and GPS all ON and no "battery saving" apps of any kind running. And that's been consistent for the last two weeks. I DO, however, kill all apps in the recent apps menu. I don't force stop them or anything, just open up the recent menu and swipe them away.
The only time I've gotten battery drain was when I left an N64 emu, an SNES emu, Sixaxis and two other games running in the background. That ate about 10% battery or so in 10 hours.
I left my prime unplugged for 8 hours, wifi on, and it was at 99%. So I don't know what the OP is talking about.
Additionally, iPad doesn't have a good clue as to what real multi-tasking is like, and therefore doesn't update as much because it doesn't have services running in the background.
Android does have services running in the background. Give and take. You want your data always refreshed? What intervals? etc.
That's all configurable, so you really decide how long your battery lasts.
Advice to OP: Read more, get smarter, post less dumb crap.
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.
Hey, so I've seen several people claiming fantastic battery life, etc. So, I am just wondering what's your experience in general. If you've got some free time and feel like typing, can you list several things like:
roms & kernel
stock/anker battery
battery life
screen time (and possibly voice call time or whatever else that seems to consume lots of the battery life)
highest battery temperature (I recently got pretty high so I was kind of worried)
and anything else you think might worth sharing (favorite actress? :silly
As for me, I recently installed Speed ROM 6.5 with stock kernel on stock battery
I only got 8 hours battery life to get to 14% with 3 hours of screen time (mostly used for game, browsing, and flipboard)
I got up to 100F (~40.5C) after playing a game for about 15-20 mins which made me leave it for a few mins to cool down. The next time I played the game again, it got up to 109F (~43.5C) after playing for 20-30 mins....
I am wondering whether that kind of high temperature is normal or not, and whether my battery life seems ok or bad; which is why I am hoping people can share their experience here. I haven't try using faux kernel though (might try it tomorrow in hope for a better batter life)....
So, again... if anyone got free time and feel like typing, please share it with me :angel:
From my g2 to this phone all I ever see is how bad the battery is. Never noticed a difference switching roms and battery across all smartphones I've used is allot what I expect.
Some people just can't be happy you know. Not to mention people never agree on anything (me included ).
Just my two cents
Sent from my HTC_Amaze_4G using xda app-developers app
Spastic909 said:
From my g2 to this phone all I ever see is how bad the battery is. Never noticed a difference switching roms and battery across all smartphones I've used is allot what I expect.
Some people just can't be happy you know. Not to mention people never agree on anything (me included ).
Just my two cents
Sent from my HTC_Amaze_4G using xda app-developers app
Click to expand...
Click to collapse
Well, first off, I am not trying to complain about the phone here. All I am asking/trying to find out is whether my experience is "normal" or not for Amaze.
I also come from G2 and obviously the battery life will be worse on the Amaze in general. This phone is 1.5ghz dual core and 4.3" display compared to 800mhz single core and 3.7" display on g2 with only extra ~300mah on the amaze.
I just want to know if my experience of getting only 8 hours battery life (with 3 hours of screen time consist of game and browsing) and getting a high temperature of 109F on the battery is considered "normal" or not for this particular phone. I only have one phone here; so, I don't know if my unit is bad unit or if it is normal for the Amaze.
So again, by all means, I am not trying to complain about this amazing phone here. I am just trying to find out if this is what normally happen with this phone.
And yeah I'm one of those guys that can never be happy :silly:. When I used G2, I want larger phone and faster performance. When I got Amaze, I want slightly larger screen and much better battery performance. So, yeah I can never be happy with my phone :laugh:
The temperature thing is definately normal, it can get pretty high. I've had it go above 109f while on video chats on Skype. As for thebattery, that's normal too its just dependent on the user. U may have something that's running continuously in the background that your not aware of that's causing drainage. Many things that could be effecting the battery really
sent from my NRGized Amaze,
powered by faux kernel v.16
My battery temperature is over 9000!
sorry someone had to say it
@OP, most likely you either have a bad battery, or your phone isn't sleeping properly on idle, or your phone has some problems with the RUU
Code:
Battery is ~1900mAh. If you use it for 3 hours active at around 400mAh, that is 1200mAh
700mAh left for idling the rest of the 5 hours. My idle current usage is around 9-40mAh as reported by Battery Monitor Widget(go to settings, change monitoring mAh to HTC Sensation to get a better reading)
700/5 = 120mAh/hour.... this means your phone isn't sleeping properly
Get CPU Spy... install it, then put your phone down for an hour without using it.... after that, does the report show that it goes to deep sleep?
When I got my phone and flashed the ENERGY rom, I had ~8 hours of total uptime (1-2 hours of usage)... i reflashed the RUU (do it on 100% battery), then it is better now
Now, on the Energy STOCK ICS rom with FAUX latest(0.12?)
Anker battery
15 hours of uptime
1-2 hours of screen-on time(roughly 2-3 hours of phone "awake" time)
don't remember battery temps, but i don't ever remember ti being that high
interactive governor, max frequency 1.4 ghz(to maximize battery life)
data on, autosync on, 2 gmail accounts synced only
My 100%->80% battery drains in 90 minutes, but after that, it slows down
I added the following to build.prop to tweak more battery life
Code:
# Power Save Tweaks
ro.ril.disable.power.collapse=0
pm.sleep_mode=1
If you really want to stretch out the battery, change the governor to powersave(forces processor to 192mhz always), but it definitely lags and I wouldn't recommend it unless you really really need to max battery life
EDIT: Go to Settings->power->see what is using my battery, post a screenshot (this one is 16 hours plus ~2 hours usage)
see the part that says "awake", and the part that says "screen on"? It should be correlate mostly -> when you use your phone's screen, the phone is awake.... when you turn off the screen, the device should be sleeping and not be awake
{
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"lightbox_stop_slideshow": "Stop slideshow",
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aj_2423 said:
The temperature thing is definately normal, it can get pretty high. I've had it go above 109f while on video chats on Skype. As for thebattery, that's normal too its just dependent on the user. U may have something that's running continuously in the background that your not aware of that's causing drainage. Many things that could be effecting the battery really
sent from my NRGized Amaze,
powered by faux kernel v.16
Click to expand...
Click to collapse
I guess this phone is just that "hot" eh....
So, you're saying that I should be able to get a better battery life than that?
By the way, did you use Juice Defender or anything like that? Or did you just let your mobile network and wifi on all the time?
`Ghost` said:
My battery temperature is over 9000!
sorry someone had to say it
Click to expand...
Click to collapse
It hasn't exploded yet?!?! You can use your battery to heat up your room in winter :silly:
paperWastage said:
@OP, most likely you either have a bad battery, or your phone isn't sleeping properly on idle, or your phone has some problems with the RUU
Code:
Battery is ~1900mAh. If you use it for 3 hours active at around 400mAh, that is 1200mAh
700mAh left for idling the rest of the 5 hours. My idle current usage is around 9-40mAh as reported by Battery Monitor Widget(go to settings, change monitoring mAh to HTC Sensation to get a better reading)
700/5 = 120mAh/hour.... this means your phone isn't sleeping properly
Get CPU Spy... install it, then put your phone down for an hour without using it.... after that, does the report show that it goes to deep sleep?
When I got my phone and flashed the ENERGY rom, I had ~8 hours of total uptime (1-2 hours of usage)... i reflashed the RUU (do it on 100% battery), then it is better now
Now, on the Energy STOCK ICS rom with FAUX latest(0.12?)
Anker battery
15 hours of uptime
1-2 hours of screen-on time(roughly 2-3 hours of phone "awake" time)
don't remember battery temps, but i don't ever remember ti being that high
interactive governor, max frequency 1.4 ghz(to maximize battery life)
data on, autosync on, 2 gmail accounts synced only
My 100%->80% battery drains in 90 minutes, but after that, it slows down
I added the following to build.prop to tweak more battery life
Code:
# Power Save Tweaks
ro.ril.disable.power.collapse=0
pm.sleep_mode=1
If you really want to stretch out the battery, change the governor to powersave(forces processor to 192mhz always), but it definitely lags and I wouldn't recommend it unless you really really need to max battery life
EDIT: Go to Settings->power->see what is using my battery, post a screenshot (this one is 16 hours plus ~2 hours usage)
see the part that says "awake", and the part that says "screen on"? It should be correlate mostly -> when you use your phone's screen, the phone is awake.... when you turn off the screen, the device should be sleeping and not be awake
Click to expand...
Click to collapse
Hmm... I would try to check the stuff that you said. I did see the battery use like you did and I have much more awake (since I used it for games and browsing continuosly). But, when I was not using it, it doesn't show that many "awake" status which is why I thought that Amaze battery performance is just that poor. I forgot to try third party app like battery current widget or cpu spy. I will check those out.
Did you use Juice defender or anything like that? Or, did you just set them manually when you need it?
And I did leave my WiFi and auto sync on.... From your usage, I'd assume you turn off your WiFi when you're not using it, right?
Thanks for the input
Edit: So, I am guessing there's a rogue app on my phone? I just reboot my phone, leave it for a minute, and battery current widget shows 200mA on my notification bar
From what I'm reading your a heavy user. Like me lol. The most I get is 6-8 hrs. With 1.5-2 hrs screen on time. Comparing that with others who get double digits It's nothing but I'm a heavy user. I stream Pandora daily surf the internet for 1 hr non stop, xda for most of the time. . And on weekends I'll have most 4 hrs. But 3.5 of those screen on with data streaming and screen on with out going off. Kinda like watching a netflix movie on mobile network. I use my phone like if it is my laptop now. I rarely use my laptop. I don't have internet nor WiFi to connect to. But if I tether I would run out of data faster so I avoid it. Besides battery draining faster.
I think there is a difference between:
1. leaving the screen on for a while, causing the phone and battery to get hot. Specially when gaming because CPU is constantly running.
2. And total screen on time accumulated of 2-4 hrs screen on. Which is achieved when sporadically checking phone for text, calls, email, quick surfing. Then shutting of screen through out the day.CPU goes to deep sleep phone stays cool.
Now that's what I call a heavy user.
Remember when phone is hot battery drains faster so you need to find a way to cool it down. Sometimes there are settings in cpu apps that when phone reaches certain temperature that app will force cpu clock down a lot as to use less power to start cooling down but causing lag.
I've got a 4 month old stock battery with latest faux kernel v.16 with battery saving tweaks on it. Energy rom stock 8-1. If there is anybody that reaches double digits with 6-7 hours 4g mobile streaming not wifi at all. 2 hrs without turning the screen off not 2 total hours. Please say I? I'd really like to know your secret.
Sent from my HTC_Amaze_4G using xda premium
shuvarts said:
Hmm... I would try to check the stuff that you said. I did see the battery use like you did and I have much more awake (since I used it for games and browsing continuosly). But, when I was not using it, it doesn't show that many "awake" status which is why I thought that Amaze battery performance is just that poor. I forgot to try third party app like battery current widget or cpu spy. I will check those out.
Did you use Juice defender or anything like that? Or, did you just set them manually when you need it?
And I did leave my WiFi and auto sync on.... From your usage, I'd assume you turn off your WiFi when you're not using it, right?
Thanks for the input
Edit: So, I am guessing there's a rogue app on my phone? I just reboot my phone, leave it for a minute, and battery current widget shows 200mA on my notification bar
Click to expand...
Click to collapse
Battery Current Widget... go to the options (top right), change the current selection(should be first row, then middle row) to "HTC Sensation" (it'll be more accurate)
that program doesn't accurately report mA if you don't change it(before changing, it'll be screen-off deep sleep 100mAh, but after switching, 10-40mAh)
I don't have Juice Defender on... autosync and data is on all the time
try w/o wifi on... i think wifi should take less battery power than data, but it always depends
on my screenshot, if you go back one and click on the screen-on... what does it say?
what does CPU Spy say about your phone going to deep sleep?
fcpelayo said:
From what I'm reading your a heavy user. Like me lol. The most I get is 6-8 hrs. With 1.5-2 hrs screen on time. Comparing that with others who get double digits It's nothing but I'm a heavy user. I stream Pandora daily surf the internet for 1 hr non stop, xda for most of the time. . And on weekends I'll have most 4 hrs. But 3.5 of those screen on with data streaming and screen on with out going off. Kinda like watching a netflix movie on mobile network. I use my phone like if it is my laptop now. I rarely use my laptop. I don't have internet nor WiFi to connect to. But if I tether I would run out of data faster so I avoid it. Besides battery draining faster.
Click to expand...
Click to collapse
Maybe you should try to mod the Atrix Lapdock... if it works, you get a larger screen and a 35W battery
I've got a 4 month old stock battery with latest faux kernel v.16 with battery saving tweaks on it. Energy rom stock 8-1. If there is anybody that reaches double digits with 6-7 hours 4g mobile streaming not wifi at all. 2 hrs without turning the screen off not 2 total hours. Please say I? I'd really like to know your secret.
Click to expand...
Click to collapse
if you are only getting 8 hours uptime with 1-2 hours of usage, then your phone's not going to sleep properly... I'd reflash the RUU, then flash Energy ROM and faux kernel... i had that problem before I reflashed RUU (but that was before I knew more about CPU states and mAh usage on this phone, so I don't know if it was a problem with the deep sleep, or the phone not properly updated to ICS when I got it from someone else)
you want to try to max battery life? I can give you hints to hit that mark... it's all about physics/electronics
your battery is 1900mAh.... Using Battery Monitor Widget(with the Settings changed to detect the phone as "HTC Sensation", see above)
With the tweaks in my first post of the build.prop, BMW shows my idle around 10-40mAh..... 10 hours of idle = 100-400mAh. Note, this is with sync and data on... if you use Juice Defender or data off, probably less
So, idle, you use up 400mAh... you have 1500mAh left
1500mAh / 6 hours = 250mAh each hour.... with BWM, it shows that the current usage goes between 100-500mAh depending on how much screen brightness, data used, processor speed... If i choose powersave, I think it goes between 50-300mAh, but its really laggy, noticeable
300mAh * 6 hours = 1800... close enough
to avoid the 100%->90% fast drain, employ bump charging:
either
1) charge your phone to 100%. remove plug, wait for it to drop to 90%. replug it, charge to 100%... repeat for 5-10 times
2) charge your phone to 100%. remove plug, shutdown. Replug it, wait till the light goes green, boot up, charge to 100%, remove plug and shutdown, replug it , wait till light goes green etc.... do the cycle for 5-10 times
I was trying to see how much I could get out of my phone. I used my phone as little as I could, putting it into airplane mode when I slept.
ROM and Kernel: I was using the latest build of Energy and Faux Kernel v.15 at the time of the picture
Using stock battery, unfortunately I do not know what the highest battery temperature is.
View attachment 1268923 View attachment 1268924 View attachment 1268925
idaggerpwn said:
I was trying to see how much I could get out of my phone. I used my phone as little as I could, putting it into airplane mode when I slept.
ROM and Kernel: I was using the latest build of Energy and Faux Kernel v.15 at the time of the picture
Using stock battery, unfortunately I do not know what the highest battery temperature is.
Click to expand...
Click to collapse
unfortunately, for this device, the screen brightness and dual-cpu takes up a lot of power... if you see the pic below, when you use your phone(screen-on/awake), the battery % left has a sharp drop
I know for my old phone, LG Optimus T, I didn't have a data plan... the phone had data off all the time, and I got days out of using it(phone calls, wifi/browsing, checking gmaps offline)... once I enabled a data plan, it got half (like 1.5 days instead of 4)
if you calculate your usage... its possible
24 hours * 50mAh during idle = 1200 mAh
2 hours * 300mAh/hour during screen-on usage = 600mAh
total = 1800mAh, the capacity of your battery
paperWastage said:
to avoid the 100%->90% fast drain, employ bump charging:
either
1) charge your phone to 100%. remove plug, wait for it to drop to 90%. replug it, charge to 100%... repeat for 5-10 times
2) charge your phone to 100%. remove plug, shutdown. Replug it, wait till the light goes green, boot up, charge to 100%, remove plug and shutdown, replug it , wait till light goes green etc.... do the cycle for 5-10 times
Click to expand...
Click to collapse
So if I use either of those 2 methods above, is my battery 'cured" of the 100% to 90% fast drain? Or do I have to keep doing it over a period of time?
icepixie said:
So if I use either of those 2 methods above, is my battery 'cured" of the 100% to 90% fast drain? Or do I have to keep doing it over a period of time?
Click to expand...
Click to collapse
bump charging only helps you for that one time... you have to do this every time if you want max battery capacity
the problem is 2 things
1) the hardware/software is configured to maximize battery lifespan, meaning to slowly charge it and not go to 100% (high voltage, damages battery)...
2) the hardware/software is poorly coded, can't read the battery voltage properly...
either way, doing this means you are forcing current into the battery every time... your battery will hold less charge in a few months if you force it to full everytime... so you have to get a new battery aftera couple of months or live with lower capacity
I will just try to observe it better tomorrow using all those apps. With much less usage (1.5 hrs of screen time), i only got 11hrs of battery life. The screenshot below is for those 1.5hrs f screen time... I dont use jd and got email sync every 1 or 2 hr though....
Sent from my HTC_Amaze_4G using xda app-developers app
I tested the idle-deep sleep capacity of the phone...
got 21 hours idle, 17 minutes screen-on (minimal use of phone) with 50% left
here is my phone with data and auto-sync ON, I got roughly 10 emails(all received during different times), had about 10 minutes of phone calls
NOTE: around the first part of the graph, you see the %-left spike up... I rebooted my phone then... and you can see that the battery-monitoring software/hardware part recalibrates itself to the real value
NOTE: cell standby-time of 21 hours used more battery than screen-on of 17 minutes.
When I used the phone for another 15 minutes, screen used 35% of battery while cellular standby dropped to 22%
tl;dr, using the phone, especially the screen, kills the battery a lot more... not using the phone = lasts a long time
paperWastage said:
I tested the idle-deep sleep capacity of the phone...
got 21 hours idle, 17 minutes screen-on (minimal use of phone) with 50% left
here is my phone with data and auto-sync ON, I got roughly 10 emails(all received during different times), had about 10 minutes of phone calls
NOTE: around the first part of the graph, you see the %-left spike up... I rebooted my phone then... and you can see that the battery-monitoring software/hardware part recalibrates itself to the real value
NOTE: cell standby-time of 21 hours used more battery than screen-on of 17 minutes.
When I used the phone for another 15 minutes, screen used 35% of battery while cellular standby dropped to 22%
tl;dr, using the phone, especially the screen, kills the battery a lot more... not using the phone = lasts a long time
Click to expand...
Click to collapse
I guess after using all those apps that you mention, I can kind of see that Amaze battery is just way worse than my G2. I was pampered with my G2 battery life for a week and now I realized how bad Amaze battery is. lol
I got 11% left after 12h 15min. That's about 1550mA used (I use stock battery).
almost 3 hours of screen time (3*350) = about 1050mA
25 mins of phone call = ~120 mA
about 8h 45 mins of idle = 360mA
So, yeah, it summed up about right this time (more accurate compared to my first result where I think I got a rogue app)...
**I am eagerly patiently excitedly waiting for a fully working stable CM9 by sport :angel: **
On a side note, just wondering if anyone know if galaxy s2 have better, worse, or about same battery life? I am just curious since s2 is supposed to be amaze rival at t-mob....
Here's mine
Rom: Fourth Bar Jellybean Fusion
Kernel: Faux's Kernel, latest edition [August 15th]
Average Temp: high 90's
Average Battery Life: 5-6 hours.
Realize that what you do with screen on makes a significant difference- If I play organ trail(awesome zombie game styled after old school oregon trail game) I can play for a long time with little battery drain.. but it is a 2d game, and not going to be very processor intensive. If I play final fantasy 3, a 3d game, wow.. battery will drain much quicker, but then again, it IS a 3d game, and processor intensive. So HOW you use your phone is even more important than the screen on time.
With the latest faux(17) kernel, and 2-3 hours of screen on, the last few days I have 45% battery left after 15 hours since unplugged. Maybe 30-45 minutes was organ trail, but not much other gaming. The only changes I made, were made to the kernel, which I posted here(be aware that making all those changes will create some small lag changing screen orientation or opening app drawer, but haven't noticed anything else). http://forum.xda-developers.com/showpost.php?p=30298629&postcount=4
I also underclock to 1.2ghz- this doesn't create any lag, and no game or app I have used seems to work ANY better @1.5ghz than it does @1.2ghz. The main difference is the voltage it uses at max speed will be less @1.2ghz.
If you have weak 4g signal, there is an app i recently posted in some thread that puts it on 2g while screen off.. that has helped a lot too. If you have constantly good signal, then it won't make MUCH difference(tho 2g does drain less than 4g even with good signal), but it takes up to 2 seconds for it to switch to 4g after screen on. I can wait two seconds before opening an app, I don't care.
I assume you have used betterbatterystats to see what apps keep your phone from deep sleep, under partial wakelock?
And when I get obnoxious drain, but NOT because the phone isn't going into deep sleep.. I turn on the logging of an app called currentwidget- it can actually measure the MAH used while using specific apps.. the app itself can cause a bit of drain, but you'd only use it long enough to see what app is so battery inefficient. I have more about how to use that under battery savings part of the bible in my signature.
Edit: And I consistently get battery temperature of 77.7-77.9F, I always have, no matter the kernel or rom or settings.. perhaps it raises a TINY bit when I play some intensive game, but never noticeable. I am using an anker battery tho, so if you are using stock, perhaps that is a factor.
broker32 said:
Here's mine
Rom: Fourth Bar Jellybean Fusion
Kernel: Faux's Kernel, latest edition [August 15th]
Average Temp: high 90's
Average Battery Life: 5-6 hours.
Click to expand...
Click to collapse
Whoa... I suppose there is someone out there with similar condition with mine... I almost thought I am the only one
Silentbtdeadly said:
Realize that what you do with screen on makes a significant difference- If I play organ trail(awesome zombie game styled after old school oregon trail game) I can play for a long time with little battery drain.. but it is a 2d game, and not going to be very processor intensive. If I play final fantasy 3, a 3d game, wow.. battery will drain much quicker, but then again, it IS a 3d game, and processor intensive. So HOW you use your phone is even more important than the screen on time.
With the latest faux(17) kernel, and 2-3 hours of screen on, the last few days I have 45% battery left after 15 hours since unplugged. Maybe 30-45 minutes was organ trail, but not much other gaming. The only changes I made, were made to the kernel, which I posted here(be aware that making all those changes will create some small lag changing screen orientation or opening app drawer, but haven't noticed anything else). http://forum.xda-developers.com/showpost.php?p=30298629&postcount=4
I also underclock to 1.2ghz- this doesn't create any lag, and no game or app I have used seems to work ANY better @1.5ghz than it does @1.2ghz. The main difference is the voltage it uses at max speed will be less @1.2ghz.
If you have weak 4g signal, there is an app i recently posted in some thread that puts it on 2g while screen off.. that has helped a lot too. If you have constantly good signal, then it won't make MUCH difference(tho 2g does drain less than 4g even with good signal), but it takes up to 2 seconds for it to switch to 4g after screen on. I can wait two seconds before opening an app, I don't care.
I assume you have used betterbatterystats to see what apps keep your phone from deep sleep, under partial wakelock?
And when I get obnoxious drain, but NOT because the phone isn't going into deep sleep.. I turn on the logging of an app called currentwidget- it can actually measure the MAH used while using specific apps.. the app itself can cause a bit of drain, but you'd only use it long enough to see what app is so battery inefficient. I have more about how to use that under battery savings part of the bible in my signature.
Edit: And I consistently get battery temperature of 77.7-77.9F, I always have, no matter the kernel or rom or settings.. perhaps it raises a TINY bit when I play some intensive game, but never noticeable. I am using an anker battery tho, so if you are using stock, perhaps that is a factor.
Click to expand...
Click to collapse
Good to know that. I used a different app to check the current mah and it seems reasonable. I forgot to use better battery stat; but, based on cpu spy, the deep sleep time seems about right... I haven't updated my kernel to v17 (still on v15) and haven't done any edit that you mention since I was still switching roms to find the ROM that suits my need. I might try to do those stuffs today and hope for the best.
And btw, I am kinda jealous with your battery life... 45% left after 15 hours unplugged and 3 hours screen ON
I might get similar result; but my battery left will be 10% and those screen on are mostly on flipboard, xda, and browsing....
Like right now, 6h 10min unplugged, 40 mins of screen on (xda & flipboard), and I am down to 66% :crying:
**On a side note, I just get my hand on gs2 and I am just curious to try and see how good it is since gs2 seems to be such a hyped up device compared to amaze.... :laugh:
shuvarts said:
Like right now, 6h 10min unplugged, 40 mins of screen on (xda & flipboard), and I am down to 66% :crying:
**On a side note, I just get my hand on gs2 and I am just curious to try and see how good it is since gs2 seems to be such a hyped up device compared to amaze.... :laugh:
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Just checked my usage. I'm sorta similar to yours in terms of screen on time. 11 h 43 m since unplugged, 39 min screen on (facebook, news, texts) and I'm down to 62%. My screen on time isnt that high, yet something else is draining my battery.
Awake time is 1 h 44m. Lots of Alarm Manager partial wakelocks. need to figure out what's causing those