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I own a Transformer Wi-Fi 16GB model. I have owned this since August when i got it for my birthday. I am a Huge android fan boy, recently at work for a thank you gesture, our small dev team received 4 ipad2s as a thank you from management.
I gave the iPad to my fiancée who is pretty much all Apple, (iPhone, mac pro personal and mac pro laptop work and now ipad2)
Last night i just charged both devices to 100%.
On Transformer (no dock) I turned unit off and turned back on and started NO applications.
on ipad2 i did nothing, just charged and removed it from charger first.
Removed Transformer from charger afterwards.
Went to bed at midnight.
woke up at 8am
IPad2 was still at 100%
Transformer - 95%
iPad2 is on latest iOS 5.01
Transformer - is on latest 8.6.5.19 and CPUSpy showed 8 hours of Deep Sleep
So the Transformer is performing as it should battery wise it just pales in comparison to the ipad2 and the battery management shows.
I can use the iPad2 very moderately throughout the week and never have to charge it.
the Transformer i have to charge every few days with the same moderate usage.
just such a bummer, everyone around me is jumping ship to Apple iPhones and iPads
here i am loyal to Android since the G1 when it launched, Mytouch, and my now Samsung Vibrant and Transformer Tablet.
I feel sometimes I am on the losing team. I am and WILL hold out for Ice cream sandwich but if ICS doesn’t perform like it should, I fear I may have to jump ship too.
there is only one thing i hate the most about Android.... the Lag/stutter in apps and home screen swipes.
iOS never does this at all yet every iteration of Android always has some type of frame rate/lag in the system.
yes i know people say Root and get on another rom but why should I have to? ios people don’t have to do that, their OS just works with no lag so why cant Android get rid of their stutter?
ok rant over.
You said you opened it and started no apps. But most apps auto start up on boot. Are you using a task killer?
Sent from my Gewgle fone using XDA App
nextelbuddy said:
IPad2 was still at 100%
Transformer - 95%
So the Transformer is performing as it should battery wise it just pales in comparison to the ipad2 and the battery management shows.
.
Click to expand...
Click to collapse
Not sure a difference of 5% qualifies as "pales" Also Transformer is running multiple apps in background from last use. ipad most likely not running any if not started during this session.
And what is the size of each battery? Did you take that into account?
Sent from my Gewgle fone using XDA App
no i dont use a task killer, i used to on gingerbread andd froyo roms on my phone but after hearing everyone come down with the fire from hell like rain if they found out you were using a task killer on Honeycomb (because honeycomb is supposed to be great at App Management) i dont use a task killer.
the only apps i have on my transformer are the default apps and words with Friends.
also verified while charger was still plugged in and after tf101 was rebooted, that the recent apps or current runnin apps icon showed no apps running (im sure there were some other core android apps running in memory on boot up)
Also iPad2 was rebooted as well. i work in QA at my software company so i pay attention to detail and steps and made sure that both devices were as close to a specific state as possible for this test. in a nice world i would have taken an average with different app scenarios but i didnt feel like it for this personal test.
i the Device is in Deep Sleep then power and app management should be superb and they are for Android but compared to iOS app and power management not so much.
i even loaded PULSE RSS feed aggregator on both devices and the experience is night and day.
nice fast and fluid on the iPad2
on the TF101 with the same feeds and pages, very slugish and laggy and takes more time to draw each individual image in the windows.
Rumbleweed said:
Not sure a difference of 5% qualifies as "pales" Also Transformer is running multiple apps in background from last use. ipad most likely not running any if not started during this session.
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Click to collapse
Pales when combined with my ipad2 usage over a week compared to my Transformer usage over a week.
i can go over a week with no charge with an iPad2
i cant go more than 2-3 days with out a charge with a TF101
so deep sleep drain with nothing running on a freshly charged device showign 5% drain over night is a positive indicator of where your battery usage is headed with this device.
stumpyz9 said:
And what is the size of each battery? Did you take that into account?
Sent from my Gewgle fone using XDA App
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Click to collapse
Im sure this would make a difference throughout a week period (which might be why i need a charge quicker over a week period vs. the ipad)
however i would expect if a device is in deep sleep, that its power/app and battery management would be a little better on par thats all.
i am in no way trying to start a war which i can feel is about to come, not looking for people to come down on me.
I am a true Android devoted user, i just can see the differences between the OS's with small things.
overall the Android experience satisfied so much more than the ipad does which is why i did not keep it and let the fiancee have it but there are some things to be desired from the iPad2 thats all.
Are you honestly *****ing about losing 5% battery over 8 hours? Really? Not to mention you were apparently running CPUSpy, so obviously the tablet wasn't completely idle as you have tried telling us 5000 times.
I sell iPad 2 devices and haven't seen this amazing comparison between the two devices in regards to battery life... My Transformer has lasted longer than the iPad many times so I don't know, every device is different I guess!
Sent from my HTC Desire using xda premium
i dont care what your running, when you start up android, basically every app you have auto starts up. that is why when your phone starts up you cant just hop on and use it that second. get a task killer. if you want to do a test like this, please do it correctly before ranting to the community.
1. each device fully charged
2. kill all running tasks/apps on each device
3. either do the exact same thing on each device(with the same wifi/3g or whatever) or keep them idle and only check every hour
theese arent the best ways to test but there a whole lot more accurate then what you were doing
No one should be a fan of anything. If you think having better battery life is the most important part of your tablet experience, then get the ipad 2.
For me, the flexibility of android trumps the ipad's battery life. But that's just me.
This is capitalism. We shoudn't have a team mentality here. If you think the ipad suits your needs better, then get it. No drama here.
ok a few problems with that rant first as someone above said you were using cpu spy which uses resources and seccond turning on and off the tablet is the largest and quickest way to lose battery. when i reboot i expect to loose about 3% battery because of the power required so that 5% is perfectly reasonable
nextelbuddy said:
just such a bummer, everyone around me is jumping ship to Apple iPhones and iPads. I feel sometimes I am on the losing team. I am and WILL hold out for Ice cream sandwich but if ICS doesn’t perform like it should, I fear I may have to jump ship too.
Click to expand...
Click to collapse
Tell me about it, I'm still a BlackBerry fan! (For smartphone, not for tablet.) I've had that "losing team" feeling for a while. You get used to it. Use the product you love, not the one you think is most popular.
nextelbuddy said:
i even loaded PULSE RSS feed aggregator on both devices and the experience is night and day.
Click to expand...
Click to collapse
I've never tried that one. Used to use newsr, but lately been using Google's own Reader app for Android. Been very happy with it. Might be worth a shot if you haven't tried it. It's optimized for tablets too.
nextelbuddy said:
i can go over a week with no charge with an iPad2
i cant go more than 2-3 days with out a charge with a TF101
Click to expand...
Click to collapse
Well, you know, I read this, and I can't help but think, and sorry to be rude but... honestly, "who cares????". Are you away from electricity for more than 2-3 days at a time more than once a year? Maybe you like taking week-long camping trips to campsites with no electricity? Maybe? I don't know, but for most people I know, 2-3 days is tons. I just charge mine up overnight, so I never have any downtime due to charging. I'm struggling to see what the big deal is. I mean, yes, 2-3 days is less than a week, but does this really affect you?
Cheers!
I don't really think it's possible to match iOS in battery life...
1. It's real multi tasking on Android, apps consumes more power
2. Android itself is not as efficient as iOS (java vs Objective-C)
I would be skeptical of any device that after 8 hours (assuming you sleep eight hours) still reports 100% battery.
tekkitan said:
I would be skeptical of any device that after 8 hours (assuming you sleep eight hours) still reports 100% battery.
Click to expand...
Click to collapse
It's not impossible, my captivate does this with certain firmware.
3 points I want to bring up.
1 age of battery. It sounds like you have had the TF longer than the ipad. Which may say that the battery has not been calibrated correctly yet. Also older batteries lose their charge.
2 multitasking. Android actually leaves open apps and processes running. Ios will freeze or suspend them. Android's approach will use more battery.
3 your approach at testing such stats could use some improvement. For one, you could look at the processes running in stead of the apps or the open window list. That list is very innacurate at showing what is actually open.
Lastly imho how long either of these stay on is not really a point I would consider bickering about. For what the TF and ipad do the battery life is well past my expectations. Laptops and netbooks seem like a waste of money now for a good portion of the population in comparison to the computing power, portability and battery life of a tab.
Sent from my MB855 using XDA App
scoobdude said:
3 points I want to bring up.
Laptops and netbooks seem like a waste of money now for a good portion of the population in comparison to the computing power, portability and battery life of a tab.
Sent from my MB855 using XDA App
Click to expand...
Click to collapse
Not until a tablet that I can type without lag, get a full office suite that handles more than one document and store a single file larger than 4GB, lol
These are just some basic stuff on PC.
I own an iPad 1 and a transformer. I use my iPad most days and my transformer about two or three times a week. The iPad still last longer. I don't see why everyone is so defensive about it, the iPad does last longer.
They OP said how he feels and that the didn't want to start a war. I don't understand why every thread is criticized by someone. End mini rant.
I have the OG iPad and the TF. The battery is better on the iPad. However the keyboard dock and additional charge time is nice. We can get into battery size and calibration and how OS runs background apps and battery drain. I'm just saying battery wise I agree with you, but compared to the Galaxy Tab and Dell Streak 7 I'm pretty pleased with the TF battery. I wish I could do that with my Motorola Atrix.
I'm ok with custom roms. They are fun and can help also with battery life.
Best of luck.
Larrikin said:
I own an iPad 1 and a transformer. I use my iPad most days and my transformer about two or three times a week. The iPad still last longer. I don't see why everyone is so defensive about it, the iPad does last longer.
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Click to collapse
I completely with this. My experience with the ipad tells me the same thing. Battery does last longer with the ipad. That said, to me all the advantages of android outweighs (by a lot) the battery disadvantage.
Again, to the op. If you feel battery is the most important thing about a tablet, then I recommend you go with the ipad. I am not a fan of anything. I simply want what's best for everyone.
6 hours Battery life is the maximum i get in my rooted stock rom Nexus 7....
Sent from my Nexus 7 using xda premium
6 hours doing what? If you use it non-stop for 6 hours (screen always on) then that's probably about right.
I get about 3 days use from mine (which has about 6 hours screen on time by the end of it).
Remember as well the warmer it gets the faster the battery will drop, plus turning it on and off a lot will take a lot out the battery, leaving it to idle in standby is better than to keep turning it off all the time.
I hope this helps but I cannot be more specific without knowing exactly what your doing with yours.
Can you post more detail. Like what you do with it during that 6 hours. do you have everything on like.
Things that you should check and lower to help with battery life
1 . screen brightness (put as low as you can handle)
2. Wifi on all the time when there is NO NETWORK CONNECTION.
3. sync accounts in background (sns notifications and running apps) ROGUE.
4. GPS AND LOCATION SETTINGS (EAT BATTERY NEARLY MORE THEN ANYTHING)
5. OVER CLOCKING AND TWEAKING SYSYEM
The above is a place to start good luck
erica_renee said:
Can you post more detail. Like what you do with it during that 6 hours. do you have everything on like.
Things that you should check and lower to help with battery life
1 . screen brightness (put as low as you can handle)
2. Wifi on all the time when there is NO NETWORK CONNECTION.
3. sync accounts in background (sns notifications and running apps) ROGUE.
4. GPS AND LOCATION SETTINGS (EAT BATTERY NEARLY MORE THEN ANYTHING)
5. OVER CLOCKING AND TWEAKING SYSYEM
The above is a place to start good luck
Click to expand...
Click to collapse
Saying that I have noticed leaving the wifi and gps on makes no noticeable difference on the nexus 7 (it does on a phone). The biggest drain seems to be leaving NFC turned on all the time, turn it off and you notice a boost straight away.
Less than 6 hours of intensive use everything on is the most i get for intensive usage...
Google promised 10 hours
I want a nuclear powered nexus 7, I want to compete with Nasa, s Mars Curiosity....
Sent from my Nexus 7 using xda premium
wifi on for web use only, max brightness and bluetooth off..I can watch about 6 hours shows and play a game about hour and then turn wifi on check emails and some sites, all in all 6-8 hours depending. Never over 8 tho, but I charge it daily anyways as it seems to charge really fast.
NDUTU said:
Less than 6 hours of intensive use everything on is the most i get for intensive usage...
Google promised 10 hours
I want a nuclear powered nexus 7, I want to compete with Nasa, s Mars Curiosity....
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Quoted right from https://play.google.com/store/devices/details?id=nexus_7_8gb&feature=single-wide-banner sorry but sounds like your getting near average battery life. I feel as thou i get more then 8 hours continuous use but i never use mine for gaming and never in front of it for long periods..
----------------THIN, LIGHT AND PORTABLE
Nexus 7 is a no compromise Android tablet that’s designed to go wherever you go. With a stunning 7” display, powerful quad-core processor and up to 8 hours of battery life during active use, Nexus 7 was built to bring you the best of Google in a slim, portable package that fits perfectly in your hand.----------------------------------------------
---------- Post added at 01:03 PM ---------- Previous post was at 12:59 PM ----------
Lennyuk said:
Saying that I have noticed leaving the wifi and gps on makes no noticeable difference on the nexus 7 (it does on a phone). The biggest drain seems to be leaving NFC turned on all the time, turn it off and you notice a boost straight away.
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Click to collapse
Thanks for the tip i will turn nfc off as i have only set it up NEVER Used it nor am i sure i ever will.
i was actually quoting on how my a500 and android phone does.Not really used the nexus long enough to get a true feel for battery life . My use is checking email posting to forums and internet searching. once in a while i will use gps. but never long periods of use.. gps on a500 sucks the battery and does not get the greatest signal . but it still gets 8 + hours .
Trinity 7 kernel, use TKT (play store) and UC to 100/1100 and disable offline CPUs at boot. Amazing battery life
Lennyuk said:
Saying that I have noticed leaving the wifi and gps on makes no noticeable difference on the nexus 7 (it does on a phone). The biggest drain seems to be leaving NFC turned on all the time, turn it off and you notice a boost straight away.
Click to expand...
Click to collapse
Sounds like you have a fault somewher. NFC uses very little power.
Harry GT-S5830 said:
Trinity 7 kernel, use TKT (play store) and UC to 100/1100 and disable offline CPUs at boot. Amazing battery life
Click to expand...
Click to collapse
Can I install this is kernel in The Stock Rom?
Sent from my GT-I9300 using xda premium
Yes u can flash it on the stock ROM. Use the above settings and you'll find that the battery doesn't want to come down. Its the best kernel right now. Be sure to support the developer by buying the kernel app also. I got 1hr screen time for 10% battery so that gives you an idea. Also 7000 benchmark.
Sent from my Nexus 7 using xda app-developers app
This thread gave me the idea to re-download SetCPU to underclock it. However, I immediately noticed flaws. Switching between homescreens had become laggy. I uninstalled, and I'll leave it the way it is.
Dear People,
I am posting this out of big ENVY from my friend's story of his iPh*** 4 battery life with 40hrs ++ of usage (social network on, moderate usage, data always on, bla bla bla) and he still got 20% left of his battery!!!
I was just wondering did anyone managed to experience 40hrs ++ of battery lifetime? My best achievement with my nexus s battery life is
1 day 3 hrs with
MIUI Rom JB 2.8.17
Marmite Kernel 4.3
SmartassV2/deadline
100/1000
Automatic brightness on
Could we EVER achieved 40hrs ++ battery lifetime??? Since Iph*** 4 has practically same specs with Nexus S
It has 1Ghz procs, 512mb ram, 1500mah battery, bla bla bla
Any comments?
A very big advantage of the iphone is the very dim (to my opinion) screen backlight. If you change that to default 1 min instead of 20 on a custom rom, and then change your auto brightness values as well to lower ones your lifetime should increase alot. At least mine does. Also I use Llama to close mobile data after 5 minutes of sleep and then instantly turn it on on unlock. Anyway..we will never be able to win versus apple at some things. They have one operating system made for one device. We got one operating system for like..1 milion devices? That's the same story of console vs pc games.
andrei.voinea93 said:
A very big advantage of the iphone is the very dim (to my opinion) screen backlight. If you change that to default 1 min instead of 20 on a custom rom, and then change your auto brightness values as well to lower ones your lifetime should increase alot. At least mine does. Also I use Llama to close mobile data after 5 minutes of sleep and then instantly turn it on on unlock. Anyway..we will never be able to win versus apple at some things. They have one operating system made for one device. We got one operating system for like..1 milion devices? That's the same story of console vs pc games.
Click to expand...
Click to collapse
Never used iOS devices before...So they have those kind of things hey..
I agree with you with the point that their OS was made for one device, while us is for millions
Thanks for the comment
I've been getting pretty excellent battery life lately, will put up a screen shot but got almost 52hrs battery life with wifi and 3g on until it got to about 15% with about 2h 24m screen on time, although this was pretty light usage to be fair.
Using codename 3.3.2 with standard kernal, I turned NFC off and this seemed to help massively although I've also heard the new Maps app has solved some battery drain so not sure which has contributed the most.
cptblubear said:
I've been getting pretty excellent battery life lately, will put up a screen shot but got almost 52hrs battery life with wifi and 3g on until it got to about 15% with about 2h 24m screen on time, although this was pretty light usage to be fair.
Using codename 3.3.2 with standard kernal, I turned NFC off and this seemed to help massively although I've also heard the new Maps app has solved some battery drain so not sure which has contributed the most.
Click to expand...
Click to collapse
52hrs?????? Cant wait for your screenshots man!
You may think the specs are the same, but the hw in the iPhone and power management is still superior. They get a push notification, even while the 3g radio is in idle and almost off (in which it saves more power). It's hard for Android to optimize the power management specially because of that many hardware variations, it's not only the CPU that counts.
madd0g said:
You may think the specs are the same, but the hw in the iPhone and power management is still superior. They get a push notification, even while the 3g radio is in idle and almost off (in which it saves more power). It's hard for Android to optimize the power management specially because of that many hardware variations, it's not only the CPU that counts.
Click to expand...
Click to collapse
Well, thats good to know, but since its the software differences (meaning coding and stuff), surely (i assume and hope) that we could also applied it (somehow) in our devices through tweaks, can we?
IMHO not much is possible since this is older hardware already and a question for how long will Google bother with it. It might be alot of work needed and you gain some insignificant amount of savings.
Would be nice to see some kind of power management tweaks in coming version of Android though.
well its halfly because android works differently and half way because of the hardware.
yes, the hardware is similar, but the nexus screen takes up more power, the processor is not very efficient, and nfc takes up power... also, the 3g radios are honestly HORRIBLE on the nexus s and that might have something to do with it.
but, the software side does make a major impact. iPhones do not multitask like android, which saves power on slower devices like the iphone 4. thats only half of it though, for instance, the iphone 4S has much worse battery life than the nexus s (by far). ROMs make a big difference also, I am very picky when choosing a ROM- if it doesnt have great battery life then I immediately replace it by another ROM that does.
I get on average about 16-20hours pretty consistantly if you are wondering, and I am OK with that as long as it makes it to the end of the day... I wake at 3:30 and normally it does. My advice is to experiment with different ROMs, I would suggest some, but I use an S 4G...
I don't really believe it. My friend has an iPhone and he uses it quit a bit and seems to have to keep it plugged in as much as I keep my phone. I think he said he usually gets about 8 hrs out of it. And the screen is pretty dull compared to mine so that might make a difference to
Sent from my Nexus S 4G using xda app-developers app
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
heccubusxda said:
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
Click to expand...
Click to collapse
Or an extended battery...
Sent from my Nexus S 4G using xda app-developers app
heccubusxda said:
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
Click to expand...
Click to collapse
Thats a good point too, smaller screen
Use this as yours to shut him up apples wack i got this oc to 1400 on stock with air kernel 186
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nucleor1989 said:
Use this as yours to shut him up apples wack i got this oc to 1400 on stock with air kernel 186
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
Whoaaaah! What rom and settings? Awesome!
Sent from my SGH-T959V using xda app-developers app
Data was on all the time ? Ive got 33 hrs once but this is insane
I have achieved 50 hours on cna ... yes codename android but dang I forgot to take a screenshot of it I didn't have data on that time though
Sent from my Nexus S using xda premium
Lasting 40+ hours is easy if you don't use the phone much...
The screenshot was taken on a long weekend a while ago. I was busy during the weekend and didn't use my phone much apart from listening to music for no more than 2 hours.
Si_NZ said:
Lasting 40+ hours is easy if you don't use the phone much...
The screenshot was taken on a long weekend a while ago. I was busy during the weekend and didn't use my phone much apart from listening to music for no more than 2 hours.
Click to expand...
Click to collapse
Thats true, but from the iphone their data was on all the time, mid moderate usage.
But, just like some people said, power managwment chip, the os, makes big differences
Sent from my SGH-T959V using xda app-developers app
On my S3/Note 2, every time I use my phone, both Screen On and Awake will be reflected.
On Nexus 7 however, when I'm using the tablet, even though Screen On is reflected, Awake isn't. Is this a bug or a new thing on Jellybean 4.2 or simply a nexus/stock android thing? If it's a stock android thing, then what does Awake actually mean?
Tried googling but I can't find any answers..
Awake means CPU isn't at idle. Like background processes running.
Sent from my Nexus 7 using xda premium
Gizmoe said:
Awake means CPU isn't at idle. Like background processes running.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Oh so the Awake only appears strictly for background processes on the Nexus 7?
Seems different from the Note 2. Is this a stock android thing?
kEvinErd said:
Oh so the Awake only appears strictly for background processes on the Nexus 7?
Seems different from the Note 2. Is this a stock android thing?
Click to expand...
Click to collapse
I'm not too sure exactly. On my phone it was always on with screen but may have something to do with 3g radio consuming power. It does seem real low compared to my phone. Even on cyanogen on my phone it shows constant with screen on and off. Maybe since there is no radio the CPU can idle most of the time.
Sent from my Nexus 7 using xda premium
Battery on my new 32 gig sucks. 4-5 he's of use
Same here
If I helped out, hit the thanks button.
My question is not really about the battery life but on how to actually interprete the meaning of Awake on the nexus 7 as it seems different from my Samsung phone..
mrazndead said:
Battery on my new 32 gig sucks. 4-5 he's of use
Click to expand...
Click to collapse
I wonder why that is. I get at least 8 hours screen on time with stock 4.2. Right now I'm at 4 hrs 6 min screen on time with 51% battery left. Also have the 32g version.
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---------- Post added at 12:05 AM ---------- Previous post was at 12:02 AM ----------
kEvinErd said:
My question is not really about the battery life but on how to actually interprete the meaning of Awake on the nexus 7 as it seems different from my Samsung phone..
Click to expand...
Click to collapse
I too am curious as to exactly why. I can only guess. I do know awake has to do with the phone doing tasks and pulling the cpu out of an idle state. My inspire seems to always show as awake even when the screen is off. I do notice though when I shut off mobile data on my phone, awake and screen on basically are in sync. The inspire has an old single core snapdragon though so as soon as I use my phone I'm sure the CPU is maxed out. However on the nexus, awake is only little slivers here and there even when the screen is on all the time. Maybe the tegra 3 is just that good Lol.
Sent from my Nexus 7 using xda premium
Gizmoe said:
I wonder why that is. I get at least 8 hours screen on time with stock 4.2. Right now I'm at 4 hrs 6 min screen on time with 51% battery left. Also have the 32g version.
Sent focuses Nexus 7 premium
---------- Post added at 12:05 AM -------- Previous post was at 12:02 AM ----------
I too am curious as to exactly why. I can only guess. I do know awake has to do with the phone doing tasks and pulling the cpu out of an idle state. My inspire seems to always show as awake even when the screen is off. I do notice though when I shut off mobile data on my phone, awake and screen on basically are in sync. The inspire has an old single core snapdragon though so as soon as I use my phone I'm sure the CPU is maxed out. However on the nexus, awake is only little slivers here and there even when the screen is on all the time. Maybe the tegra 3 is just that good Lol.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Haha same here on the Awake being little slivers here and there on my nexus 7.
Ideally, when the screen is off, the phone shouldn't be Awake for too long a period or too many times. It's an indication of partial wakelocks caused by some apps or processes in the background, which causes unnecessary battery drain. On my phone, comparing the Awake and Screen on allows me to quickly identify if there's any partial wakelocks. I can't do the same on nexus 7..
Hope someone can enlighten us soon on how exactly to interprete Awake on the nexus 7. Still not too sure if it's a stock android thing, a bug or a JB 4.2 thing. Haha
I, not sure why mine is like that. I am not a noon to android tablet and my Acer iconia get 10 hours battery use for a couple year old tab.
My nexus is setup with almost everything off and WiFi NFC of as well. The only thing I can think of is I did not do a factory reset after ota update to 4.2.1. I'm going to do reset after I do a full charge. If that doesn't work then I will flash a new to, and kernel
I believe the whole "awake" under battery is just a 4.2 bug. Because ever since my G'nex updated it's the same way even though it used to have solid lines in accordance with screen on. As long as both my devices continue to get normal (for me) battery life I don't worry about it. Though I do hope Google fixes it because I do find it slightly annoying.
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95Z28 said:
I believe the whole "awake" under battery is just a 4.2 bug. Because ever since my G'nex updated it's the same way even though it used to have solid lines in accordance with screen on. As long as both my devices continue to get normal (for me) battery life I don't worry about it. Though I do hope Google fixes it because I do find it slightly annoying.
Sent from my Galaxy Nexus using xda premium
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Thanks for confirming! Haven't been able to get anyone else's confirmation I was starting to think it's a stock android/nexus thing. Battery life wise I'm unable to compare because I got my nexus 7 with 4.2 out of the box.. No points of comparison.
kEvinErd said:
Thanks for confirming! Haven't been able to get anyone else's confirmation I was starting to think it's a stock android/nexus thing. Battery life wise I'm unable to compare because I got my nexus 7 with 4.2 out of the box.. No points of comparison.
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I also think it is a 4.2 issue. My friend told me that his Nexus 7 suffers from poorer battery life since he flashed a 4.2 ROM, he reverted back to 4.1.x for his daily driver.
Maybe it only shows partial wakelocks called from applications (not screen)?
Silverspitz said:
I also think it is a 4.2 issue. My friend told me that his Nexus 7 suffers from poorer battery life since he flashed a 4.2 ROM, he reverted back to 4.1.x for his daily driver.
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I don't think this is causing any extra battery drain though.. Battery drain when idle is very minimal which is a good thing..
haha123 said:
Maybe it only shows partial wakelocks called from applications (not screen)?
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That's what I'm more inclined to thinking too. Was it like this before on 4.1 or earlier versions? This is my first nexus device so I can't tell if its a android OS version thing or nexus device thing.
Apparently the battery life is terrible:
http://www.engadget.com/2013/10/21/microsoft-surface-pro-2-review/
(Scroll down).
The W700 has better battery life than the SP2, yet the SP2 uses Haswell...
Macmee said:
Apparently the battery life is terrible:
http://www.engadget.com/2013/10/21/microsoft-surface-pro-2-review/
(Scroll down).
The W700 has better battery life than the SP2, yet the SP2 uses Haswell...
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Keep in mind that they were playing a video for the duration of that test, so doing things like browsing the web will make the battery last longer. 6 hours of video playback doesn't sound terrible to me, my current tablet will hardly do 7 hours of screen on time in total of normal usage, and that's an android tablet with an ARM processor.
I'll be running a chunk of tests side by side with my existing Pro and the Pro 2 when mine gets here, if anyone wants side by side specific tests doing I will see what I can do...
I got my first full day of usage out of my new Pro 2, and I got above 10 hours of near constant use. It beat my old tablet (Which was an android tablet with a Tegra 2 ARM processor). Definitely impressed by the battery life on this thing.
Still waiting for mine to turn up, damn you, damn you all to hell...
That's one test. I've only had 1 full day with my SP2, but it's battery life is on par with the RT, which is a lot better than the SP1. I'd guess 7-8 hours for me, not running a lot of heavy processing tasks
I really wish I would have waited the two months for the Pro 2. Such huge improvements with battery life over the Pro I just bought, and all for just $100 more than I paid. I would feel a bit better had I saved more than that. Anyone want to buy a Pro 1 and a laptop so I can get the 2? LOL
lopezk38 said:
I got my first full day of usage out of my new Pro 2, and I got above 10 hours of near constant use. It beat my old tablet (Which was an android tablet with a Tegra 2 ARM processor). Definitely impressed by the battery life on this thing.
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10 hours sounds great. But was that with the screen on all the time? And if so, with what brightness settings? I've been discouraged by the reviews saying around 7 hours but I want to know the total possible screen on time on the lowest brightness with light tablet usage, i.e. no desktop apps, only modern UI IE for internet browsing. My nexus 7 2012 gives around 8h of screen on time with the lowest brightness and I'm fine with that.
mertzi said:
10 hours DOT.nds great. But was that with the screen on all the time? And if so, with what brightness settings? I've been discouraged by the reviews saying around 7 hours but I want to know the total possible screen on time on the lowest brightness with light tablet usage, i.e. no desktop apps, only modern UI IE for internet browsing. My nexus 7 2012 gives around 8h of screen on time with the lowest brightness and I'm fine with that.
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Somewhere around 7 to 7.5 hours SOT. Auto brightness. Mostly metro UI, but I did go into desktop mode a tiny bit
I'm confused as to why people are still quoting battery life from a device thats not even in the same ball park, yes the Nexus is a nice device, almost had one myself but at the end of the day the Surface is an i5 device with 10" screen etc, if anything it should be compared more to an ultrabook, or more accurately to 75% of an ultrabook given its physical size and the associated battery size.
Trig0r said:
I'm confused as to why people are still quoting battery life from a device thats not even in the same ball park, yes the Nexus is a nice device, almost had one myself but at the end of the day the Surface is an i5 device with 10" screen etc, if anything it should be compared more to an ultrabook, or more accurately to 75% of an ultrabook given its physical size and the associated battery size.
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The concept of preferences and user scenarios is not some universal law. It is HIGHLY subjective. If I'd want an ultrabook I'd buy an ultrabook. I want a device that can act both as an ultrabook AND a tablet instead of having one ultrabook and one tablet. If the surface pro should be measured purely as an ultrabook then why do you think Microsoft didn't do an ultrabook? Comparing battery life is vital if you want to have a good idea of how the surface pro acts as a tablet. If you see the surface pro plain as an ultrabook, why not buy a "real" ultrabook instead?
mertzi said:
The concept of preferences and user scenarios is not some universal law. It is HIGHLY subjective. If I'd want an ultrabook I'd buy an ultrabook. I want a device that can act both as an ultrabook AND a tablet instead of having one ultrabook and one tablet. If the surface pro should be measured purely as an ultrabook then why do you think Microsoft didn't do an ultrabook? Comparing battery life is vital if you want to have a good idea of how the surface pro acts as a tablet. If you see the surface pro plain as an ultrabook, why not buy a "real" ultrabook instead?
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Battery life is highly subjective, yet you are comparing a 7" ARM based tablet with a 10" x86 i5 tablet.
My point about Ultrabooks was more down to the spec of Ultrabooks being more or less the same as the Surface Pro, a damned sight closer than the spec of a Nexus by a country mile...
Trig0r said:
Battery life is highly subjective, yet you are comparing a 7" ARM based tablet with a 10" x86 i5 tablet.
My point about Ultrabooks was more down to the spec of Ultrabooks being more or less the same as the Surface Pro, a damned sight closer than the spec of a Nexus by a country mile...
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No I'm not, I'm comparing user scenarios. Specs is completely irrelevant. As I said, I want ONE device for all my needs. Is that really so confusing? Maybe you are a hardcore materialist or something but personally I'm a minimalist and I don't like to have several gadgets for different situations.
mertzi said:
No I'm not, I'm comparing user scenarios. Specs is completely irrelevant. As I said, I want ONE device for all my needs. Is that really so confusing? Maybe you are a hardcore materialist or something but personally I'm a minimalist and I don't like to have several gadgets for different situations.
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Spec's isnt irrelevant when you mention how much you get out of one device over another, you brought that up not me, all you needed to say was you wanted at least X figure, rather than mentioning Y hardware as that gives off the wrong impressions and suggests you are expecting something different.
As for one device, I had the RT, have the Pro now, and have the Pro2 on order, its a brilliant device in normal Pro guise, I want the Pro2 mainly for the extra RAM, the battery life to me makes no odds as I use it at home, and have a charger, I use it at work, I have a charger, I'm not out on the road long enough to worry about battery life that much although I do have a charger in the car as well.
I have completely ditched everything but my mobile phone since having the Pro, so if you are a minimalist then I dont see you having any issues, unless you are more road based than the 6+ hours a Pro2 will give you at which point a power cover, car charger or some other setup should do for your needs.
If you guys followed anandtech. Apparently the battery life is caused by firmware issues. Microsoft just pushed an update that fixed it. They did the same test and it boosted from 6 hours to 8 hours.
Sent from my U9200
bountygiver said:
If you guys followed anandtech. Apparently the battery life is caused by firmware issues. Microsoft just pushed an update that fixed it. They did the same test and it boosted from 6 hours to 8 hours.
Sent from my U9200
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Now we're talking! Added anandtech to my bookmarks.
I do the occasional tour with the band I play in and some drives are longer than 6 hours. And you don't have access to power outlets at every place you stay so you might not be able to charge it every night so all the extra battery juice is welcome. And I don't trust 12V converters.
Sent from my Nexus 7 using Tapatalk 4
mertzi said:
Now we're talking! Added anandtech to my bookmarks.
I do the occasional tour with the band I play in and some drives are longer than 6 hours. And you don't have access to power outlets at every place you stay so you might not be able to charge it every night so all the extra battery juice is welcome. And I don't trust 12V converters.
Sent from my Nexus 7 using Tapatalk 4
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microsoft are offering an official in car charger for the surface. The surface charges at 12V anyway so really all it needed was something to regulate the car electrical systems actual voltage of 13-14v down to 12. However it isnt hitting shelves until early 2014. It is listed on here though: http://www.microsoft.com/surface/en-us/accessories/browse#accessories4