There's been mixed reviews of battery life in the CM7 rom for the NT as far as battery life is concerned, some are saying they've run it with moderate use since the day it was released and only used about 20 - 30% so far while others are saying battery life is terrible.
SO I thought I'd start a little poll to see what people are getting, I'm guess the battery drain is due to various software being installed so not really the OS's fault.
For me the Battery life is greatly improved over stock, for instance I took it of charge 10 hours ago, it's admittedly only been used for a few minute son and of during those 10 hours but it's lost the grand total of 4% battery in those 10 hours which I consider pretty good really.
Soi lets here what everyone thinks, remember to vote !
Battery life - improved
This is my third day on the CM7 alpha - battery life has been much better than before. Considering I have probably spent more time with the NT turned on over the last couple of days than I normally would, the battery used is less than normal. Previously I would use about 60% of my battery per day. Now I am using 30%-40% - and that includes downloading and configuring many, many applications.
I really think its much better than stock in my cm7 nt
No problems here. Take off charge around 6am and return to charge around 10pm with usually more than 80% left depending on usage.
Sent from my Droid Incredible ICS 4.0.3
I don't think mine has been on a charger for the last 16 hours or so, light usage, wireless has been off most of the time, and I use a task killer to kill things before I turn off the screen. Didn't power off, just put to sleep last night before bed, it's still at like 85%.
So far, it seems better than stock battery life to me, or at least no worse, and I have a lot more apps installed now.
Edit: Internal version.
It might help if folks said if they were running off SD card or internal memory when looking at battery life - I have the impression that the SD card reader on the NT is something of a battery vampire.
Internal CM7 since it was released.
Live wallpaper on Golauncher
wifi set to screen off-off
Brightness at about 60-65%
It's been off of charge for 4 hours 21 minutes this morning and I'm at 96%
Dolphin HD and Gmail have been running all that time.
Hasn't been out for long enough to really tell but my impression is that it's about the same as stock.
screen.
10char
dang69 said:
screen.
10char
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Odd. Is that your aforementioned case with lots of standby? On my Vibrant, the Screen bar generally dwarfs all other bars even with significant standby time. Granted that's an apples-to-oranges comparison... (I don't have CM7 on my Nook Tablet yet - can't do a comparison between stock B&N and my Vibrant at the moment.)
PlacidCat said:
Odd. Is that your aforementioned case with lots of standby? On my Vibrant, the Screen bar generally dwarfs all other bars even with significant standby time. Granted that's an apples-to-oranges comparison... (I don't have CM7 on my Nook Tablet yet - can't do a comparison between stock B&N and my Vibrant at the moment.)
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Yes. I don't really know what "standby" means. This use was about 40 minutes of checking email, weather news and etc followed by About 2 hours with the screen off then an hour of dinking around. Watched all the superbowl commercials, staying up on XDA and other forums with Tapatalk and learning things in CM7. I'd describe this as light use bordering on moderate.
dang69 said:
Yes. I don't really know what "standby" means. This use was about 40 minutes of checking email, weather news and etc followed by About 2 hours with the screen off then an hour of dinking around. Watched all the superbowl commercials, staying up on XDA and other forums with Tapatalk and learning things in CM7. I'd describe this as light use bordering on moderate.
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Watching video or playing games can be quite intensive. Flash is probably the most intensive for video playing.
Keep a good eye in it over the next few days then cone back and post if you've noticed anything that makes it better or worse with battery life
Last I checked mine was going on 18 hours and at about 40%
One thing I noticed is that the charger for my Moto phone doesn't seem to charge the nook as well as the nook charger. I'll have to look at the nook wall wart and see if it's pumping out more juice. For reference the Moto charger is only 4.33W (5.1V at 850mA).
The nook charger is a 1.8amp charger
CelticWebSolutions said:
Watching video or playing games can be quite intensive. Flash is probably the most intensive for video playing.
Keep a good eye in it over the next few days then cone back and post if you've noticed anything that makes it better or worse with battery life
Click to expand...
Click to collapse
Will do.
10char
RadicalAns said:
Last I checked mine was going on 18 hours and at about 40%
One thing I noticed is that the charger for my Moto phone doesn't seem to charge the nook as well as the nook charger. I'll have to look at the nook wall wart and see if it's pumping out more juice. For reference the Moto charger is only 4.33W (5.1V at 850mA).
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What kind of usage? Low, high, moderate? Just curious because my wife and I do a decent amount of Netflix (1-2 hours a day) and I don't have to charge more than every 3 days. This is with 1.4.0 rooted. I've been exceptionally pleased with that - power consumption in standby seems to be incredibly miserly with stock (most likely due to WiFi being turned off when the system is in standby).
Montisaquadeis said:
The nook charger is a 1.8amp charger
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Ahh. That explains a lot. Looks like I should pack that in my bag rather than my Moto charger. I wonder if it'll charge my phone faster?
On the subject of the battery, I posted about an issue I encountered last night, here:
http://forum.xda-developers.com/showthread.php?p=22261812
Additional information: At the time, I was fooling around with a playstation emulator, which i'm fairly sure constitutes a heavy drain on system resources. Battery drain seemed appropriate for the level of activity.
Sent from my SAMSUNG-SGH-I997 using Tapatalk
Internal install, wifi off during sleep. Figure the end of the graph was about 19-20 hours or so of sleep. Before that was a constant internet, twitter, WWF session. Screen brightness is in the bottom 1/3rd of the slider.
I am going to beat the hell out of it tonight and will see how the battery holds up. Looks pretty solid just sleeping, so we will see what it can do under load.
So found that if your wireless location is turned on, it will wake your NT about every 5 minuetes. That's not a good thing
If anyone is seeing drains, i suggest using betterbatterystats to help track down the culprit.
10 char this
So Im getting horrible battery life with this now. Not really sure whats going on. I use to be able to leave my nook on standby for days and last night it was at about 30% woke up this morning and it was completely dead...
Related
I am a bit disappointed with the drain of the battery compared to all other tablets available out there. Mine drain like 1% in every 4.5 mins when you use it for browsing websites, which last only 7.X hours.
7 hrs for me is acceptable but i am just wondering hows everyone else doing on their battery. Do you like it so far
My battery was draining pretty quick for the first two or three days but it's settled now and seems to be getting better.
Same with me. It started off draining quickly, but I've noticed that it's getting better. The battery life may not be the best out there but it's reasonable enough.
I can maximize my A500 Tablet more than 10hrs. only when I'm using Battery Booster v3.3 but if not, until 9.5 or exactly 10hrs only.
Yeah same battery was burning quick initially now its pretty even and like an idiot I left gps ticked on indoors which certainly didnt help
Yeah, I can confirm that the battery life has gotten a lot better after a week of using it.
I returned mine because of an issue that the gray cover part of the back was coming out very easy, I got a new one and this one drains battery very very slowly even at the first charge!
I must admit iam not that impressed with battery life so far,it drains about 20% overnight in airplane mode.
I charged mine to full last night used it for web browsing and music was down to 68% after two hours.
This morning was at 48% left on airplane mode this morning until 1pm was at 17% when I got home.
Sent from my Sony Tablet S using xda premium
A lot of the pre-launch reviews warned about battery issues, so I thought it would be a problem. I have been pleasantly surprised. I charge it once a day in the cradle. I use the tablet most heavily at night, and usually have a half battery in the morning. The first day I had it I went several hours on the 20% it had out of the box. Not bad at all.
I was using mine for about 3 hours last night and coming from a full charge I still had 80% battery left so it's definitely improved a lot
my battery goes down about 10% every hour... while watching video using bluetooth MW600 with wifi conneected to my phone...
n my x10 battery goes down about 30% per hour, sad...
Got no problem with battery life got a problem with recharge time tho it is real slow.
How is the standby time of your Tablet S? I have 80% battery left on last Friday, but this morning (Monday, that means has been two days more), I can't boot my device, no juice left in my tablet S. I did not use it on Saturday and Sunday. This is very weird.
According to the Sony website, the stand by time is 400 hours, of course I don't believe these numbers. But let's say 200 hours standby time is worth to trust. My tablet S doesn't even last for 48 hours. Has anyone encountered the problem I had?
so far im not convinced by the battery. I purchased mine on Friday and hoping what everybody else says is true - that it gets better after a few days, but I suspect this is due to the "honeymoon" period being over and people stop playing with it as much.
I put mine down last night at 95% at around 10pm. I checked again this morning at 8am and it was down to 65%. To me that doesn't quite sound right. I've turned off all syncing and location services now and Wifi is set to go off when the screen turns off so I will see how long it lasts after a full charge tonight.
I am starting to feel really disappointed by the battery life... =(
Sploogie said:
...
I put mine down last night at 95% at around 10pm. I checked again this morning at 8am and it was down to 65%. To me that doesn't quite sound right. I've turned off all syncing and location services now and Wifi is set to go off when the screen turns off so I will see how long it lasts after a full charge tonight.
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Click to collapse
Same here !
The S1 drains the battery really fast over night.
It seems that the cpu is always active and dont use something like a "sleep mode" ...
Anyone has suggestions what to try without root ?
I have returned my tablet. However battery life was worse then the Jetstream and worse then the Ipad2
It might not be a Sony problem. Check your apps. Android doesnt have that good of control over apps like Apple has so they are not all optimized.
You will be surprised how many of them will eat away at your battery even in stand by.
Here is how i test it. I go into Settings>Applications and go and force close every single app that im not using. Then i put the tablet in stand by and check it after a few hours. I say a few hours because after one hour the battery doesnt even move in stand by.
minalcri said:
It might not be a Sony problem. Check your apps. Android doesnt have that good of control over apps like Apple has so they are not all optimized.
You will be surprised how many of them will eat away at your battery even in stand by.
Here is how i test it. I go into Settings>Applications and go and force close every single app that im not using. Then i put the tablet in stand by and check it after a few hours. I say a few hours because after one hour the battery doesnt even move in stand by.
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Click to collapse
I get what you're saying. Though, there is definitely something wrong with this (or my) tablet's battery life. I have closed apps, and even turned off all the radios overnight; but I went from 74% to 34% in just 10 hours overnight in standby! This is unusual. I charged my tab yesterday morning, and used it very moderately. I used to have a xoom and a tf, but they would probably still have roughly 75% - 85% left?!! Maybe this is a hardware issue on my tablet, specifically? I can't return it. I am about to call Sony about this. Does anyone else have dramatic battery drains like I have been experiencing?
EDIT: Food for thought - I once had my xoom last over 21 days in one charge alone! This was obviously with VERY little use, but the Sony tab wouldn't even last 5 days in that scenario?!
Sent from the most "Epic" phone in the world! ...Using XDA Premium app
js042507 said:
I get what you're saying. Though, there is definitely something wrong with this (or my) tablet's battery life. I have closed apps, and even turned off all the radios overnight; but I went from 74% to 34% in just 10 hours overnight in standby! This is unusual. I charged my tab yesterday morning, and used it very moderately. I used to have a xoom and a tf, but they would probably still have roughly 75% - 85% left?!! Maybe this is a hardware issue on my tablet, specifically? I can't return it. I am about to call Sony about this. Does anyone else have dramatic battery drains like I have been experiencing?
EDIT: Food for thought - I once had my xoom last over 21 days in one charge alone! This was obviously with VERY little use, but the Sony tab wouldn't even last 5 days in that scenario?!
Sent from the most "Epic" phone in the world! ...Using XDA Premium app
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Click to collapse
The specs for S tab along with the battery type in it should last but for some reason it is inconsident. Ive had days where Ive turned it off at 90% and turned it back on later in the day at 89% and somedays its gotten as low as 60%...for no apparent reason. So something is odd.
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. ^_^
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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.
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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 %.
.
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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.
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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!
I'm having very poor battery life compared to my samung galaxy tab 10.1 and my motorola xoom
Im getting about 5 to 6 hours of screen on time. Most of the time I browse the web and play some gamesWith the galaxy tab 10.1 I used to get around 10 hours abd wih the xoom about 9.
Is just me or are you having te same problem?
I also can't see the battery usage stats.
josuetenista said:
I'm having very poor battery life compared to my samung galaxy tab 10.1 and my motorola xoom
Im getting about 5 to 6 hours of screen on time. Most of the time I browse the web and play some gamesWith the galaxy tab 10.1 I used to get around 10 hours abd wih the xoom about 9.
Is just me or are you having te same problem?
I also can't see the battery usage stats.
Click to expand...
Click to collapse
For battery usage missing go here: http://forum.xda-developers.com/showthread.php?t=1424679
For battery drain, are you in balanced power mode? The display would be the next thing I would check. Make sure your do not have the brightness up too high or that new IPS+ brightness feature turned up for outdoor viewing.
im using most of th time nrmal mode and using my tablet indors with low brightness. Can i calibrate my battery or what should I do?
josuetenista said:
im using most of th time nrmal mode and using my tablet indors with low brightness. Can i calibrate my battery or what should I do?
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even with low brightness, having it in Normal mode drains the fastest. normal mode is when Prime is running at Max power. combine that with web surfing slot and that's the cause. web surfing puts a strain on battery as its constant using more n more ram n rendering pages, etc.. even so it seems you should be getting better battery life even with that configuration. do you have alot of Widgets set up to update very frequently? do u have your email set up to update frequently? do u have something else rubbing in the background that you're not aware of? all of those things will cause battery to drain faster.
if you want the best battery life and power use balanced mode instead. even in balanced mode, its far more powerful than the galaxy tab or xoom you mentioned. make sure to check for those other things mentioned also. you should get better battery life than that though even in normal mode. you could also decrease the display timeout.
since the normal battery usage setting that shows apps battery usage is bugged in HC in prime, go to the market place. download a free app called Android Assistant. its 18 tools in one. on there it has an app battery usage sections and you can check there to see what's been draining battery the most aside from display. .
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josuetenista said:
im using most of th time nrmal mode and using my tablet indors with low brightness. Can i calibrate my battery or what should I do?
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Click to collapse
plus technically its still too early for battery to be fully broken in and calibrated yet. it has to go through several full charge and discharge cycles before it gets to optimal battery performance.
I'm at around a day on normal with auto brightness. Use it mostly to browse the web and xda. Play a few games as well.
Yeah battery isnt as good as everyone makes it out to be. Since i got it on dec 23rd I have had to charge it up every night.
In the morning its at 100% (10am) then I take it with me to work, usally dont even have time to use it but sometimes i do. On a day that I dont end up using it at work at all, by the time I get home its at 93% (decent for being idle 10 hours, my hp touchpad is around 95% after my 10 hour work day and ipad 2 sits at 99-98%). then i start actually using the device, 10pm - 2am and im down to 50%. This is with very light use, checking email and usally watching a movie on the sdcard. By the time i goto bed its about 20% (3am).
So overall the battery is "OK". Gets about or close to what other tablets are getting in terms of battery life. My ipad 2 gets about 10 hours no matter what i do (gaming, browsing, videos). Asus Prime gets about 7-8 light use (email, sdcard movies, sd music) and about 6 hours heavy use (gaming and browsing).
Settings on my PRIME:
Balanced mode
10% brightness
super IPS + off
GPS off, Bluetooth off.
jzen said:
Yeah battery isnt as good as everyone makes it out to be. Since i got it on dec 23rd I have had to charge it up every night.
In the morning its at 100% (10am) then I take it with me to work, usally dont even have time to use it but sometimes i do. On a day that I dont end up using it at work at all, by the time I get home its at 93% (decent for being idle 10 hours, my hp touchpad is around 95% after my 10 hour work day). then i start actually using the device, 10pm - 2am and im down to 50%. This is with very light use, checking email and usally watching a movie on the sdcard. By the time i goto bed its about 20% (3am).
So overall the battery is "OK". Gets about or close to what other tablets are getting in terms of battery life. My ipad 2 gets about 10 hours no matter what i do (gaming, browsing, videos). Asus Prime gets about 7-8 light use (email, sdcard movies, sd music) and about 6 hours heavy use (gaming and browsing).
Settings on my PRIME:
Balanced mode
10% brightness
super IPS + off
GPS off, Bluetooth off.
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Click to collapse
Well that's over 12 hours which is what the specs list the battery life at without the dock
Sent from my Transformer Prime TF201 using xda premium
Haro912 said:
Well that's over 12 hours which is what the specs list the battery life at without the dock
Sent from my Transformer Prime TF201 using xda premium
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Click to collapse
So then i guess every tablet can run for 12 hours or more in that case...
The prime is advertised as having 12 hours battery life when your using the device, not in idle... you are obviously trolling anyone that has something bad to say about the prime, Its shameful.
This is with heavy to light use. Wifi it always on. Screen set to auto. On normal mode. I have only charged it when the battery dies completely and don't unplug it until it is at 100% for awhile. There was 1 or 2 times where I charged before it died completely.
Sent from my Transformer Prime TF201 using xda premium
In all honesty, considering how much the device lags at times according to reports, I can't imagine running it in any other mode than Normal. I'd understand if the other modes would be lag-free for light activities like browsing, but they are not. At the moment, Normal is the 'best you get' in a bad situation.
Haro912 said:
This is with heavy to light use. Wifi it always on. Screen set to auto. On normal mode. I have only charged it when the battery dies completely and don't unplug it until it is at 100% for awhile. There was 1 or 2 times where I charged before it died completely.
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Sent from my Transformer Prime TF201 using xda premium
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Umm, I don't know if your aware... but any tablet can do that if its just idle all day like that...
I always drain my tablets once or twice a week till they shutoff and charge them up to 100% and unplug (if you leave them charging over night or drain them to 0% every night it will degrade).
kristovaher said:
In all honesty, considering how much the device lags at times according to reports, I can't imagine running it in any other mode than Normal. I'd understand if the other modes would be lag-free for light activities like browsing, but they are not. At the moment, Normal is the 'best you get' in a bad situation.
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this is funny as I run mines in balanced mode most of the time. its always lag free. what reports of lag you speak of? lol even when I put it in battery savings mode its smooth as hell. these so called reports along with others really have people who don't even own device misinformed. most so called reports here on general show device moves fast n smoothly. there has only been 1 video of so called lag in browser and that was trivial. as people thought video didn't really represent what was going on. other than that, there has been no proof of so called lag. especially coming from major reviews before release and after. I've basically used my tab nonstop and have a whole lot of stuff installed on mines with Widgets and live wallpapers and no lag at all what so ever. it'll be different of proof was out there bit there isn't. as far as memory goes funny how some new tabs announced with 2gb of RAM and now suddenly 1gb is not enough or its a little..lol. of course o would rather wish this had 2gb ram tl start off with but it doesn't. from what I can tell it doesn't hamper performance at all and seems to be enough.
ill just end this here. I could go on n on debunking these so called reports but not worth the time. it'll be different if it was a valid argument like GPS. which we know isn't working properly. as far as wifi, lag n everything else goes, its all trivial at best. as my device performs perfectly aside from GPS, which I've never fully tested yet. I'm a good candidate for using the tablet more than most considering use it for work also. so I'm day in and day out on this tablet. even developers who have posted reviews of prime are more than satisfied with performance. tell them the so called reports n see what they tell you in return..lmao
yup horrrible battery life #sarcasm
My battery life is about 6-7 hours so just like in TF101. And it was supposed to be so better....
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jzen said:
Umm, I don't know if your aware... but any tablet can do that if its just idle all day like that...
I always drain my tablets once or twice a week till they shutoff and charge them up to 100% and unplug (if you leave them charging over night or drain them to 0% every night it will degrade).
Click to expand...
Click to collapse
Not if you are formatting battery for first few times - it is said to do like this in manual.
Ive heard of people going 32 hours with the dock, so you must be really whipping those 4 cores.
Sokonomi said:
Ive heard of people going 32 hours with the dock, so you must be really whipping those 4 cores.
Click to expand...
Click to collapse
Do not believe this. It depends on how the person count it. I count ONLY the time of "Screen on". Some people makes Prime to sleep for 10 hours + work of 4 hours and they say their primes work for 14 hours
So after using the tablet if in options (battery monitor app) I see 6 hours of display on and I have 3% to go then I can tell my Prime works 6 hours on a single recharge.
That is the way it should be counted. Because you can;t work on tablet when screen is off right? (maybe if you listen to music)
Orion66 said:
Do not believe this. It depends on how the person count it. I count ONLY the time of "Screen on". Some people makes Prime to sleep for 10 hours + work of 4 hours and they say their primes work for 14 hours
So after using the tablet if in options (battery monitor app) I see 6 hours of display on and I have 3% to go then I can tell my Prime works 6 hours on a single recharge.
That is the way it should be counted. Because you can;t work on tablet when screen is off right? (maybe if you listen to music)
Click to expand...
Click to collapse
And? What's wrong with this? It's normal for webbrowsing.
Well we have different ways of thinking when saying battery life.
I'm always on Normal w/ IPS @ about 20%. I've never had to use Super IPS mode even on a sunny day. IPS to 80-90% in the bright sun and is very lucid (and I live in AZ where we've been having 85 degree weather lately!)
That being said, I get so much out of the Prime and I've only drained it twice. Last night I drained it after 2 days of decent usage and no charging. I've been marathoning 'Homeland' on my laptop and using my Prime for everything else. I'd say I've had about 16 hours of entire usage over the past couple days. I did power the Prime off before sleeping to compare it's percentage loss to when it is asleep to when powered off so perhaps it's not a fair assessment, but I did use it quite heavily including streaming youtube, regular browsing, downloading apps, trying to get a lock on GPS and playing a flash game.
I think we should measure battery life only with screen on time, the problem right now is that the prime doesn't show the battery stats. Anyother way or app to have battey stats?
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.
I am seriously thinking about returning my Sony Tablet S.
I can't seem to get more than 3 hours out of this without a charge.
I play a full movie with wifi/GPS on and then i am down to 30%.
I do have it rooted and most of the bloat apps is gone. I check the battery indicator constantly and the biggest app using battery seems to be android so nothing is zapping my battery life.
Any ideas?
I think something is wrong with you're tablet, mine lasts for more then 8 hours without root.
So yes, return it and ask for a replacement.
bartbla said:
I think something is wrong with you're tablet, mine lasts for more then 8 hours without root.
So yes, return it and ask for a replacement.
Click to expand...
Click to collapse
same as that
Try this app
http://forum.xda-developers.com/showthread.php?t=1024867
If it doesn't work, send to service centre for a check.
Sent from my Sony Tablet S using xda premium
Try and adjust the backlight intensity
When I first used my tablet the battery seemed to be gone in no time. I have found that reducing the backlight manually has helped. I would say there was a definite difference.
Thanks for all the responses.
Problem is this is for my kid. He don't really have the patience to wait for charges every day.
He like to watch movies on the tablet and play some games here and there. Considering he only use it for 3-4 hours a day, this is insane how short the battery is.
I thought i will never say this...but another android guy bite the dust and cross over to the evil apple kingdom (exchanging for the ipad2 with 10 hour battery life).
jxl92182 said:
Thanks for all the responses.
Problem is this is for my kid. He don't really have the patience to wait for charges every day.
He like to watch movies on the tablet and play some games here and there. Considering he only use it for 3-4 hours a day, this is insane how short the battery is.
I thought i will never say this...but another android guy bite the dust and cross over to the evil apple kingdom (exchanging for the ipad2 with 10 hour battery life).
Click to expand...
Click to collapse
so we've all told you that it doesn't sound normal and that you should get much longer out of the device and your answer is "it must be android" rather than a faulty device.......
8 hours to 10 hours on mine, depending on what i do. with and without root, it doesn't change my battery life.
Mine about 8 hours
Had the same issue in the past... Delete all on USB and make a factory reset solved the problem. Now it run up to 8 hours.
Schrammi said:
Had the same issue in the past... Delete all on USB and make a factory reset solved the problem. Now it run up to 8 hours.
Click to expand...
Click to collapse
Same issue and fix here.
I have decent battery life ( 6+ hours) but one thing that makes me wonder is the idle time.
5 hours of screen time is less power consuming than the tablet being 20 hours in idle. Has anyone the same experience?
Yes. In my case it's the 3G modem. Turn it off generally and only on when you use it.
If I compare this case with my iPad I have to say, that the 3G modem in the sony uses much more energy in idle than in my iPad.
My Tablet is WiFi-only. And WiFi shuts down when the screen goes off.
Battery use:
Tablet idle ------------ 49% --> 15h 8m 57s
Screen---------------- 37% --> 4h 56m 31s
Is this strange behaviour or am I just paranoid since this is a totally different battery usage than on a phone( e.g Sensation)?
Bejtulla said:
My Tablet is WiFi-only. And WiFi shuts down when the screen goes off.
Battery use:
Tablet idle ------------ 49% --> 15h 8m 57s
Screen---------------- 37% --> 4h 56m 31s
Is this strange behaviour or am I just paranoid since this is a totally different battery usage than on a phone( e.g Sensation)?
Click to expand...
Click to collapse
I report the same type of stats...
Its using a lot of battery in sleep mode. But sometimes it doesn't, sometimes sleep mode last way longer but most of the time its about 25-30 hours in sleep mode and that is way too much...
I hope ICS will fix this, if not i may return mine.
And not 2g/3g/4g here, no celular radio here.. So, its not that.
---------- Post added at 08:11 PM ---------- Previous post was at 08:08 PM ----------
Schrammi said:
Had the same issue in the past... Delete all on USB and make a factory reset solved the problem. Now it run up to 8 hours.
Click to expand...
Click to collapse
USB??? you mean internal SD card (/mnt/sdcard)?
Yes. That's what I mean.
Sent from my iPhone using Tapatalk
Hmm. You do realise playing videos and having the wifi on in the background will cane the battery? Even more so if you're streaming said videos to your device via wifi. No doubt you've got the screen turned up full brightness as well?
Mine runs perfectly well and can last for a couple DAYS between charges, depending of course on how I use it.
Follow the tips provided by the others, you might get a fix. If not, get a new one from Sony. It's not a problem with Android - I suspect if you watch hours and hours of movies on an iPad you will still experience excessive battery drain because of the intensive nature of what you're doing!
Thanks for all the suggestions. If the tablet is for me to use daily, I probably would have condition the battery, try to delete all and then restart. However, it is for my kid and frankly it is unacceptable that a brand new tablet after watching one movie (just regular mp4 file i installed into the internal SD) is down to 30% charge.
I won't even start with the rest of the things i am disappointed with; the missing 6 gigs on the 16 gig, the screen little darker than i wanted (the screen protector I don't like at all), and frankly honeycomb in general is not that crispy and well developed.
I did end up getting a Ipad 2. After watching 1 movie, the thing still got 80% juice left....is night and day. Screen is sharper and brighter and most importantly it last more than a day without charge.
I don't want to hype about ipad here and i am still an android fan (i got 2 android phones), but the ipad really is WOW compared to the current corp of android tablets. Yes i am disappointed i won't be able to "tweak" the ipad like i can with droid pads, but Apple OS is so much better developed than honeycomb or ICS for that matter that really you can live without the tweaking.
For all you guys, with Wi-fi only (and 3G if you like the solution), before putting it to sleep put the device in flight mode. I've done it on mine and it was asleep for 4 days while I went out on a journey and when I came back only 30% of battery was gone...
I honestly can only fault the ipad in the sense that a media device, that for all intensive purposes is basically a more convenient option than a laptop, does not have flash support. Quick web browsing on tablets is great but it's useless without flash :S. Damn apple. Other than that I think the iPad is pretty great, especially now that the pricing for the new iPad has become alot sharper than in the price. Obviously to combat the success of Android tablets of late. But all I want out of a tablet is a bit of web browsing here and there, a couple games now and then and a nice digital photo frame to boot
I don't know about everyone else, but I have no desire to flash the crap out of my Sony tablet like I do with my SGS2. Now that I have root access it's doing everything I wanted it to do (and should have done!) from the start. So long is it's stable and responsive I'll be happy with it for a few years at least.
I was never happy with my tablet from day one but for me it was just software - sluggish and app incompatibility - a factory reset and root has fixed all that now. Never once have I had an issue with battery life. Sure as hell out-does any gameboy/ds/psp I've owned. Standby will last weeks if I don't touch it too.
So to those of you getting around 1-2 days standby time, something is seriously wrong with your tablet. There must either be a fault with your battery itself, or some app has gone rogue and just keeps it awake the whole time. i dont think any type of conditioning your battery will heed any results;
I didn't condition my battery at all when I got it and it's just fine. I played it with the 5% charge it had out of box till it died, got home, charged a bit, played with it till it shut off again, then when it got about 1/2 full just took it off charge and played with it again. Now it normally gets charged every friday whether it needs it or not.