Just trying to get a feel for what's normal
5.5h it varies but that's an average.
9hrs. (I don't play much in the way of games)
Sent from my Nexus 10 using Tapatalk HD
tcb4 said:
5.5h it varies but that's an average.
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On what brightness?
Only went thru' 3 battery cycles here, after the initial one i got 9h30 screen on time each time, i don't play games either.
8-9 hours for me. little to no gaming
Could you guys past your screen brightness that you normally user also... That has a lot to do with battery life. I , for instance, have my brightness at about 40% at any given time.
My personal best was 10.5 hours of screen time on a 48 hour battery cycle. No gaming, just web surfing, streaming google music occasionally. This was mostly reading comics on comicwrack.
Edit: lowest brightness possible as I read in the dark.
duarian said:
My personal best was 10.5 hours of screen time on a 48 hour battery cycle. No gaming, just web surfing, streaming google music occasionally. This was mostly reading comics on comicwrack.
Edit: lowest brightness possible as I read in the dark.
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I really like to know how u guys get that on screen time 10 hours ?
The most I can get is ,maybe 5-6.
Something is not right here. Either people reading screen time wrong or something....
---------- Post added at 07:25 PM ---------- Previous post was at 07:23 PM ----------
WackyClash said:
On what brightness?
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I get the same at 40% brightness.
I don't believe 9-10hours.
I wana see proof of that
Around 6 hours of heavy use.
Sent from my Nexus 10 using xda premium
Is battery life improvable through a software update? Kind if off topic ..
johnyguy said:
I really like to know how u guys get that on screen time 10 hours ?
The most I can get is ,maybe 5-6.
Something is not right here. Either people reading screen time wrong or something....
---------- Post added at 07:25 PM ---------- Previous post was at 07:23 PM ----------
I get the same at 40% brightness.
I don't believe 9-10hours.
I wana see proof of that
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I've gotten 7-9 hours every time on a mix of auto brightness and manual set around 15%.
Anything higher than 25% is uncomfortable for me unless I'm outside or something.
This is primarily web browsing and such. Videos drain a bit faster and games much much faster.
There's plenty of proof in the various posts about battery life.
I would say about 4h. I'm in a really critical position..
Between 6 and 8 hours here depending on what I do with it. Brightness set to lowest setting mostly, Google Now turned off and WiFi set to off during sleep.
I get from 7-9 hours consistently with wifi off when screen is off and watching shows, browsing xda, Internet, pulse, reddit and occasional gaming for about 10-20 minutes. I once got about 10 hours but that was when mainly reading lecture notes and making my own notes via pen and paper. My brightness is about 15-20 or if it's sunny then around 40%.
Certain apps have a tendency to keep your tablet or even phone awake. You could download 'betterbatterystats' which is on xda somewhere for free and judge what is keeping it up by looking at 'partial wakelocks' or if you are rooted, 'alarms' (what awakes your tablet up when it should be sleeping). Typical culprits for me are Google Now and Maps and for some reason, The Economist app. If you turn off Location Reporting, that can help battery alot, but if you need it on, make sure that the apps which need it aren't unnecessarily waking up your tablet.
No way should you be getting any less than 5-6 really, even if using it at max capacity. I watched around 2 films and a couple of episodes of shows for a max on screen time of about 5-6 hours before and probably still had 30% left.
Sent from my HTC One X using xda premium
Source
This is the full review, complementing their min-review posted in July.
The original Nexus 7 gave us a decent Android experience at a very low cost. This year ASUS and Google raised the bar for sure. The new Nexus 7 is no longer just a decent tablet at a good price, it's an incredible tablet. With this Nexus, it's clear that Google no longer wants to rely on value alone. The 2013 Nexus 7 redefines what you should expect to pay for a truly great tablet. If you're in the market for an ultra portable tablet, and definitely if you're shopping for an Android tablet in particular, the new Nexus 7 should be at the top of your list. It's so good that I'm giving it our Silver Award.
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Here is a key point in Nexus 7 2013 battery life testing:
N7 2013's max brightness is significantly brighter than any other tablet's max in the market, over 86% brighter than N7 2012, 54% brighter than Ipad mini, 43% brighter than Ipad 4. If you run all of them at max brightness then N7 will have less battery life. But if you run all of them at the same brightness such as 200nits, here is the result.
We'll start out with our WiFi web browsing test. Like all of our battery life benchmarks we run this test with all devices calibrated to 200 nits and connected to 5GHz 802.11 WiFi (if supported). The test itself cycles through a bunch of desktop websites at a very aggressive frequency. Our test ensures that both the CPU cores and wireless stack can reach their deep sleep states during simulated reading periods. The test continues until the battery is depleted.
Our video playback test involves looping the playback of a 4Mbps 720p High Profile H.264 transcode of the last Harry Potter Blu-ray. All displays are calibrated to 200 nits.
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See attached thumbnails for the brightness & battery test graph, more information at the source.
I usually give more weight to Anand's benchmarks that others. However, I'm very skeptical of those battery stats. The discrepancy in web browsing hours is huge compared to every other review.
noxxle said:
I usually give more weight to Anand's benchmarks that others. However, I'm very skeptical of those battery stats. The discrepancy in web browsing hours is huge compared to every other review.
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The difference is Anand fixed the brightness to 200nits on all tablets, other reviews most likely runned theirs on a fixed brightness %(where N7 2013 would be much brighter than any other tablet).
NovaSense said:
The difference is Anand fixed the brightness to 200nits on all tablets, other reviews most likely runned theirs on a fixed brightness %(where N7 2013 would be much brighter than any other tablet).
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It is not uncommon for reviewers to note the % brightness for any given bench. Many test web browsing at 50%, which should be around 300 nits. At this level, most reviewers report roughly 7 hours. Do you think lowering the brightness a mere 100 nits will result in 5 more hours of browsing? Not likely.
In the following review, less than 7 hours of web browsing was achieved with brightness set at 150 nits. http://www.notebookcheck.net/Review-Google-Nexus-7-16-GB-2013-Tablet.98299.0.html
I understand that test methodology varies among reviewers. But Anand's is wildly different from EVERY other review. Something is off with their testing in this case.
noxxle said:
It is not uncommon for reviewers to note the % brightness for any given bench. Many test web browsing at 50%, which should be around 300 nits. At this level, most reviewers report roughly 7 hours. Do you think lowering the brightness a mere 100 nits will result in 5 more hours of browsing? Not likely.
In the following review, less than 7 hours of web browsing was achieved with brightness set at 150 nits. http://www.notebookcheck.net/Review-Google-Nexus-7-16-GB-2013-Tablet.98299.0.html
I understand that test methodology varies among reviewers. But Anand's is wildly different from EVERY other review. Something is off with their testing in this case.
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Interesting, I don't think Anandtech would rig their reviews to purposely produce false results, but that 150 nits web browsing battery life time seem absurdly low. If you have a such a strong opinion, why not go to their website and question them?(if you haven't done so already)
NovaSense said:
Interesting, I don't think Anandtech would rig their reviews to purposely produce false results, but that 150 nits web browsing battery life time seem absurdly low. If you have a such a strong opinion, why not go to their website and question them?(if you haven't done so already)
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I don't think it is fair to characterize what I'm saying as a "strong opinion." I am simply perplexed at how Anand's results are inconsistent with not one or two, but EVERY other review. Nobody is getting 12 hours of web browsing at any brightness.
I don't think Anand "rigged" anything. I just think something is off with their test. Perhaps user error, or a stat counter erroneously reported something.
Because WiFi web browsing testing is just a blanket term.
Oh all the reviewers who test it....and how did they run their tests? What methods did they use and so on.
Anand runs the same exact text across all the devices. If you follow them at all they have explained what their test are designed to test. From the types of pages it loads to how frequently and so on.
Frankly most other reviewers in mobile just suck at doing of any type of useful testing period.
albundy2010 said:
Because WiFi web browsing testing is just a blanket term.
Oh all the reviewers who test it....and how did they run their tests? What methods did they use and so on.
Anand runs the same exact text across all the devices. If you follow them at all they have explained what their test are designed to test. From the types of pages it loads to how frequently and so on.
Frankly most other reviewers in mobile just suck at doing of any type of useful testing period.
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Yeah, but Anand's stats for all the non-n7 tablets are consistent with most other sites. It is only the n7 2013 that shows nearly DOUBLE what others are reporting.
albundy2010 said:
Because WiFi web browsing testing is just a blanket term.
Oh all the reviewers who test it....and how did they run their tests? What methods did they use and so on.
Anand runs the same exact text across all the devices. If you follow them at all they have explained what their test are designed to test. From the types of pages it loads to how frequently and so on.
Frankly most other reviewers in mobile just suck at doing of any type of useful testing period.
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Click to collapse
I agree with the latter statement, and admittedly I like that the anandtech staff do try to go a bit deep and get quantifiable results when conducting their tests, but lately when I look at their battery tests on devices I'm simply confused. None of the devices I've used match up to the kind of results their battery tests for the same device arrive at. In that respect, I'm not sure they qualify as "useful testing"
Wish I got my N7 from the same batch as the one they tested, because there is no way I can get 10 hours of screen on time with the current build of 4.3.
OJ in Compton said:
I agree with the latter statement, and admittedly I like that the anandtech staff do try to go a bit deep and get quantifiable results when conducting their tests, but lately when I look at their battery tests on devices I'm simply confused. None of the devices I've used match up to the kind of results their battery tests for the same device arrive at. In that respect, I'm not sure they qualify as "useful testing"
Wish I got my N7 from the same batch as the one they tested, because there is no way I can get 10 hours of screen on time with the current build of 4.3.
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I've gotten 12 hours of screen on time with 40% remaining. The tablet is capable of being ridiculously efficient with regards to battery life. If you are just reading some ebooks and browsing websites and the display is at a low brightness level, it can last forever.
You don't use your device under the same conditions as their tests.
The test are not done to show you what YOU will get during your usage. It shows how all the devices tested fair in the same exact test. A test that they explain what its doing and why they are doing it.
Some things are far easier and simple to test. Thats why those results will be similar.
This is nothing new. Look at the results for a completely different device like the iPhone for example. Then look around and see what users of devices report as their battery life for the task. It will be different. Different web pages. How many and how often you load the pages. The load you put in the WiFi radio and soc all will give you different results.
ok so let me get this straight. If 99.9% of reviews bench a tablet as capable of 7-8 hours of battery life with brightness set at varied levels, but generally between 150-200 nits, but Antendtech reports 12 hours at 200 nits, then every other bench must be inaccurate. Ok, gotcha. By all means, continue believing that you are getting 12 hours of screen-on usage. :silly:
You just don't get it.
They are doing different tests. Its not the same test.
I am not expecting to get 12hrs of screen on time since I don't use my device that way.
But I have got the same amount of screen on time as all the clueless reviewers using my device for stuff that are more battery taxing than "WiFi browsing". Netflix + YouTube+ candy crush + tune in radio while using tapatalk and other little things. So using the device as described by anands WiFi browsing test I have no doubt it will be closer to the 12 hrs they got then the 7 the mobile blogs are reporting.
Stop being lazy and look into ( if they even disclose it) how all the other sites perform their test and compare it to what anand does.
Or go over to their post on their site and challenge anand on the testing method and results and see how that goes.
Edit. lets add in some results for smartphones for the same test. The nexus 4 =5.93 hrs. The iphone 5= 10.27 The htc one x = 9.93 The HTC one = 7.8 and so on.
Do you see these same results for the other review sites? NO. Why? Because they are not doing the same test. Comparing their ( anands) test to who knows what the others is doing is just wrong.
Ill even pull in stuff directly from one of the reviews you sited in your defense,
http://www.notebookcheck.net/Review-Google-Nexus-7-16-GB-2013-Tablet.98299.0.html
With no apps running while sitting idly on the home screen, the new Nexus was able to last for over 44 hours
The large discrepancy between idling and WLAN runtimes means users can get away without charging the tablet for a few extra days longer. More conservative brightness and system settings will also net much more battery life this time around.
There you have it. So a test like anands that is not loading webpages as often and letting the wifi radio idle more will clearly get better battery results then what they ran
muyoso said:
I've gotten 12 hours of screen on time with 40% remaining. The tablet is capable of being ridiculously efficient with regards to battery life. If you are just reading some ebooks and browsing websites and the display is at a low brightness level, it can last forever.
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This. I had about 50% left with 7 hours screen time. I was just reading/listening to old articles in pocket with screen timeout set to 10 minutes. I was pleasantly surprised.
Sent from my Nexus 7 using Tapatalk 4
noxxle said:
ok so let me get this straight. If 99.9% of reviews bench a tablet as capable of 7-8 hours of battery life with brightness set at varied levels, but generally between 150-200 nits, but Antendtech reports 12 hours at 200 nits, then every other bench must be inaccurate. Ok, gotcha. By all means, continue believing that you are getting 12 hours of screen-on usage. :silly:
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You are talking out your ass. No reviews test at 150-200 nits. The verge for example does 65%, which if brightness linearly scaled on the Nexus 7 would be 379 nits, almost double what anandtech tested at. Again if brightness linearly scales, anandtech was testing at around 34% brightness.
Sent from my Nexus 4 using xda app-developers app
Yeah I can completely believe getting insane battery life at lower screen brightness
I am happily getting over 3 hours SoT with CM13 and Fire Kernel Overclocked. Is this good, or do you guys think I could get more without performance loss?
There are already threads on this topic.
Such as THIS ONE
Closed
The reason for this thread's existence is simple, to find the best combination of ROM+KERNEL for MIDO which yeilds the best battery life with optimised and good performance.
I request posters to:
1. Post atleast screenshots of one whole battery cycle with SOT (Screen on time) and battery graph.
2. The ROM which yeilds the described SOT with Kernel being used with it, preferably with Kernel settings if being used.
3. Any other battery optimisation made to yeilds more battery out of the phone such as GREENIFY or others.
NOTE: IF YOU CAN POST SCREENSHOTS OF GSAM BATTERY MONITOR TOO.
Thx guys.
Sorry to ask that but don't you think that this has no sense?
You can't include some important things into your comparison, like screen brightness, network usage, network coverage, network settings (2G/3G/LTE), sensor settings.
Even watching the same YouTube video in 720p or [email protected] on an identical device makes a huge difference. And this are really just a few examples...
Well thx for bringing that up!
SilentEYE said:
Sorry to ask that but don't you think that this has no sense?
You can't include some important things into your comparison, like screen brightness, network usage, network coverage, network settings (2G/3G/LTE), sensor settings.
Even watching the same YouTube video in 720p or [email protected] on an identical device makes a huge difference. And this are really just a few examples...
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I did consider those except the sensor settings. i know the usage per person is different for everyone and also it depends on the battery deterioration too but i couldn't really ask ppl to explain all their intricate settings. I just want a good amount of data for ppl that helps them decide which rom and kernel to use.
ALSO I THINK PPL ARE SMART ENOUGH THAT THEY REALIZE IT DIFFERS FROM USAGE TO USAGE.
Thx for some insight.
Then you could make statistics with medium usage on different combinations.
For some basic stats you can also pick up the stats from "real screen on time" thread.
One more thing to consider is that some people have 18h SOT with 3 days of usage and this breaks the average usage time on this device by far (and is not representative at all on normal usage). Therefore you probably have to exclude the best and worst SOTs, to achieve comparable results, between the ROMs.