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Hola
I looked around and didn't see any threads dedicated to this, so I hope it's not a duplicate.
After rooting and doing the ad-hoc wifi patch, the battery life is one of my few remaining complaints about the a100
Some of the reviews that I've read (for other devices that have received a stock ICS update) have mentioned noticeably improved battery life. I was wondering if anybody who's tried out any of the leaked updates has noticed an improvement and if so, you wouldn't mind sharing some stats to give the rest of us an idea of what to expect.
I noticed an improvement in battery life by quite a bit, after upgrading to ICS, but as with a lot of things battery life is subjective. Spend all day gaming and your battery life will take a massive hammering. I don't game a lot on mine but I use it like a laptop and I guess I get a decent day out of it with full brightness and a fair bit of YouTube
There's so,e tweaks to the build.prop on ICS that add some helpings to the battery life, also if you're rooted you can use setCPU etc to lower the screen off CPU freq thus saving battery there
Sent from my A500 using xda premium
I haven't really noticed any huge difference in battery life when it comes to heavy usage. I get around 4 - 4.5 hours of gaming at medium low brightness. I think with the custom build prop I get more standby time and more battery life for light usage on wifi, however, I find the best way to get the most out of my battery is use airplane mode for gaming and readding.
I noticed battery management changes in general. It seems more efficient at conservation. It also shows you what apps are consuming your battery in settings now.
Thanks for the feedback. Now that I've read that the devs are working on a CM9 release, I'm totally willing to wait to see what goodness they have in store for us!
Dear nexus 7 FHD owners,
I have possessed my shiny new nexus 7 since tuesday last week, and boy am I happy with it. The only flaw it has is a dead (black) pixel in the lower left corner, which is covered by the soft button bar when in landscape.
While it is a fantastic tablet, I consider my battery life very weak. While I dont have exact numbers at hand, using google chrome to browse the interwebz drains the battery very quick imo (ill post on this in the future).
I do, however, have exact numbers on gaming. Yesterday I drained the battery from 100% to 14%, playing eternity warriors 2 for 3h14m straight, With a screen on time of 4h47m, of which an hour at the lowest brightness setting and the rest at 10-25%. Do these numbers seem to you? How much gaming time do you get on a single charge?
Idle drain seems about right, i left it at 88% when i went to bed last night, waking up with a charge of 85%. This is with wifi on in sleep, wifi and mobile network location on, currents disabled and all sync apps set to once/ hour. Though surprisingly when i tested the idle time during the day, leaving wifi off but all other settings unchanged, it drained 5% during my 6 hour school day, leaving the device at home.
I also played galaxy on fire 2 HD for 2h36m straight, draining the battery from 80-1% (i did maybe 10minutes worth of browsing in between).
I should mention that out of the box I had about 50% battery and I drained it to 1% on the first use before the first charge. I know this is bad for the battery, but it is said that most devices get their first full 100% charge in the factory right? Still though, might this have an impact on my battery life?
I'm looking forward to your feedback. The return policy ends tuesday next week, and I can return the device no questions asked until then. I will do that if it turns out my device's battery life is indeed quite the exception. I'm reluctant to do this, however, since I only have one dead pixel and I am afraid I might receive a device which has other or more flaws.
Your device's battery performance is pretty normal on the 2nd gen N7. Games seem to drain the battery the most. I get the same results. 3hrs with gaming. Worms Armageddon in my case. I usually get about 5-6 hrs od mixed screen-on use on a single charge. From what I observe Chrome will usually flatten the battery in 4-5 hrs depends on what pages you browse. The longest battery life you will get on video playback - up to 10 hrs with MXPlayer. That all on autobrightness.
I find these results a little disappointing. At least they are very far away from what is advertised. I do not know what is the biggest drain factor but I suspect the GPU and the wireless connectivity.
While transfering large video files over wifi between my nexus and an iPad it seems that the nexus uses more battery with screen off than the iPad with sceen on.
Sent from my Nexus 7 using Tapatalk 4
bandit_knight said:
Your device's battery performance is pretty normal on the 2nd gen N7. Games seem to drain the battery the most. I get the same results. 3hrs with gaming. Worms Armageddon in my case. I usually get about 5-6 hrs od mixed screen-on use on a single charge. From what I observe Chrome will usually flatten the battery in 4-5 hrs depends on what pages you browse. The longest battery life you will get on video playback - up to 10 hrs with MXPlayer. That all on autobrightness.
I find these results a little disappointing. At least they are very far away from what is advertised. I do not know what is the biggest drain factor but I suspect the GPU and the wireless connectivity.
While transfering large video files over wifi between my nexus and an iPad it seems that the nexus uses more battery with screen off than the iPad with sceen on.
Sent from my Nexus 7 using Tapatalk 4
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Thanks for your reply. It is really comforting that it's not just my device. Still considering a return for the dead pixel more and more, though.
RAM Hungry Games
I avoid RAM-Hungry activity. Mostly 3D games of course, drain my battery quickly when I have other services running, and the games that demand a lot of RAM at once will suck the juice out of that battery, so I usually keep it on the charger when playing demanding games.
Ionkiller said:
I avoid RAM-Hungry activity. Mostly 3D games of course, drain my battery quickly when I have other services running, and the games that demand a lot of RAM at once will suck the juice out of that battery, so I usually keep it on the charger when playing demanding games.
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How quickly does your battery drain when not plugged in though?
wow, such nice battery life, and complaining
Mine drained in about 1.5 days last week with a bit of usage, with wifi on the whole time. Charged from 11%. No sync.
todays results
Today my battery was drained in: 1.5 hour gaming, 1 hour chrome, 5 hours screen on time.
I find these numbers quite the disappointment.
Arthedes said:
Today my battery was drained in: 1.5 hour gaming, 1 hour chrome, 5 hours screen on time.
I find these numbers quite the disappointment.
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That does seem a little low to me. I don't do a lot of gaming (Tapped Out is about it) but I have a lot of on screen time between Kindle, web browsing and Netflix. This is all anecdotal though, I haven't actually measured how good my battery life has been, it just seems to be good to me.
Are you running a custom ROM? I'm running CM10.2 and I *think* battery life got better when I flashed it. But again, I didn't measure and compare so its just a gut feeling.
FuturePrimitive said:
That does seem a little low to me. I don't do a lot of gaming (Tapped Out is about it) but I have a lot of on screen time between Kindle, web browsing and Netflix. This is all anecdotal though, I haven't actually measured how good my battery life has been, it just seems to be good to me.
Are you running a custom ROM? I'm running CM10.2 and I *think* battery life got better when I flashed it. But again, I didn't measure and compare so its just a gut feeling.
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I'm running full stock. My stand by time is actually pretty good (1% overnight last night), but thats probably because ive disabled most power hungry features (location, wifi off in sleep etc).
While i do a lot of gaming and battery life is expected to be low then, I expected at least 4 to 5 hours worth of gaming, since it is advertised it should last 9 hours when viewing 1080p video (which is not streamed)
Arthedes said:
While i do a lot of gaming and battery life is expected to be low then, I expected at least 4 to 5 hours worth of gaming, since it is advertised it should last 9 hours when viewing 1080p video (which is not streamed)
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Bad assumption. The hardware video decoder is extremely efficient (at 0% brightness I measured 1.28W power consumption for 720p; equivalent to 11.7h battery life).
The CPU/GPU hits thermal throttling (not enough cooling to run at full speed) at about 5W power consumption (= 3h battery life). Going from 0% brightness to 100% brightness adds another 1.05W (total of 6.05W = 2.5h battery life). So a game that heavily loads the N7, can very quickly drain the battery.
tni.andro said:
Bad assumption. The hardware video decoder is extremely efficient (at 0% brightness I measured 1.28W power consumption for 720p; equivalent to 11.7h battery life).
The CPU/GPU hits thermal throttling (not enough cooling to run at full speed) at about 5W power consumption (= 3h battery life). Going from 0% brightness to 100% brightness adds another 1.05W (total of 6.05W = 2.5h battery life). So a game that heavily loads the N7, can very quickly drain the battery.
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Thank you for settling this problem with actual facts! IIRC the battery capacity was indeed 15Wh, though I didn't know max. usage was 5W, I thought it was more like 3-4W.
I'm a bit curious though as to how one monitors the system power consumption. Is ther an app for that?
Arthedes said:
I'm a bit curious though as to how one monitors the system power consumption. Is ther an app for that?
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I'm measuring via the USB port (I built a power monitor).
The N7 also has a battery gauge chip that can measure current. The driver logs some debug info, including a current drawn value every 60s. However, that value is only the average for one second, so it's not very stable.
In a root terminal, you can run
Code:
dmesg | grep bq27541
to get the debug info from the battery gauge chip.
(BTW, that current is the current flowing into or out of the battery, not the current used by the system.)
Arthedes said:
I'm a bit curious though as to how one monitors the system power consumption. Is ther an app for that?
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I use Battery Monitor Widget. Among many other graphs it provides a %/h graph. I can see in games my N7 drains at ~30%/h
https://play.google.com/store/apps/details?id=ccc71.bmw.pro
---------- Post added at 10:08 AM ---------- Previous post was at 10:03 AM ----------
tni.andro said:
Bad assumption. The hardware video decoder is extremely efficient (at 0% brightness I measured 1.28W power consumption for 720p; equivalent to 11.7h battery life).
The CPU/GPU hits thermal throttling (not enough cooling to run at full speed) at about 5W power consumption (= 3h battery life). Going from 0% brightness to 100% brightness adds another 1.05W (total of 6.05W = 2.5h battery life). So a game that heavily loads the N7, can very quickly drain the battery.
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Great explanation. Thanks. What is then happening in Chrome? It's the 2nd biggest battery drainer for me. From what I can see it drains battery at the rate of 20-25% per hour.
bandit_knight said:
Great explanation. Thanks. What is then happening in Chrome? It's the 2nd biggest battery drainer for me. From what I can see it drains battery at the rate of 20-25% per hour.
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Chrome is a CPU pig. Even sitting around on a web page with a single animated GIF will eat 1.8W at 0% brightness. Add in some web pages with a lot of Javascript (Javascript is extremely CPU inefficient) or not using an ad blocker (it's pretty common to to pull in ad-related Javascript junk from 20+ places on a single page and a lot of ads include animated crap) and you quickly get a lot more...
Hi,
This question is for anyone using the latest CleanRom on their Note II. Just wondering if your average battery drain is around 4-5%/h. I use BetteryBatteryStats. I also check the Battery section under Settings. The most battery life I have been able to get is 12 - 15 h with 1-2h screen time. At this point, the battery is at less than 10%. Is this normal ? I thought I remembered getting better life from older versions of CleanRom. I know these numbers are never achievable on any AOSP rom that I have tried. Just wanted to see what everyone's experience is with battery life. Just post any thoughts!
Thanks for your feedback! I appreciate your time!
AEiX said:
Hi,
This question is for anyone using the latest CleanRom on their Note II. Just wondering if your average battery drain is around 4-5%/h. I use BetteryBatteryStats. I also check the Battery section under Settings. The most battery life I have been able to get is 12 - 15 h with 1-2h screen time. At this point, the battery is at less than 10%. Is this normal ? I thought I remembered getting better life from older versions of CleanRom. I know these numbers are never achievable on any AOSP rom that I have tried. Just wanted to see what everyone's experience is with battery life. Just post any thoughts!
Thanks for your feedback! I appreciate your time!
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Click to collapse
Just like anyone else, it all depends on what kernel you're on and what apps you have wakelocking. I've been using Clean 5.0 as my daily for months and the battery life lasts me throughout the day until I need to sleep at which point I plug in... but sometimes, I'm running into fast battery drain due to some apps going nuts on me or when Bluetooth is trying to link from a long distance (where the phone would heat up and drain like mad... btw this only happened to me twice in many months). After a reboot, it usually clears up and after a recharge, I'm back to 14 hours with 20% left at night. I'm not one to be anal about my battery drain if it lasts me until I sleep (because I have NEVER had a smartphone that would last me that long without plugging in... in fact, barely half the day would be when my device would need to be fed).
I'm using Perseus' latest with a few screen tweaks, no CPU or power tweaks, using Facebook constantly, Pulse, SMS/MMS, camera throughout the day, Next 3D launcher with all the fun animations running, YouTube, Pandora when driving (so my Bluetooth is on constantly)... let's just say I'm a heavy user. When my kids get a hold of my device, they run a bunch of games and drain around 10% by the time I get it back.
I am happy with the battery life on my Clean Rom 5.0/Perseus Note II. I won't fuss about it as long as it lasts longer than half the day because that is what I was used before upgrading.
Some of the reviews are calling the 5X battery life atrocious. No idea how this is possible without bloatware, newer hardware and a decent battery + marshmallow.... Even the 6P is getting bad reviews in this department. Can anyone comment here?
Reviews are all over the place, aren't they? Not uniformly negative.
This one, for example, is very positive.
The reviews mostly use scripts and the like anyway. Real world results from the forums are probably more informative.
People kept saying the same thing with the Nexus 5 battery being horrific. With my usage and what I had installed I can get 14-15 hours before I have to plug it in. My other devices are about the same except of few devices like the Xperia when I have stamina mode on.
Sent from my SM-N920T using Tapatalk
Well, let's take a look :
The screen is %4 and the battery is %17 bigger than Nexus 5.
If we add a little bit more efficient battery advantage and a new IPS panel to this equation we can expect maximum %18-20 better battery performance than Nexus 5. That's all.
It means if you get 3h of SOT with your Nexus 5 you may except maximum 3h and 30-40 min SOT with Nexus 5X.
So no need to be too pessimist but also optimist.
Expectations mostly ruin the life...
Hello
I just received my s20 plus for a week now and the battery life just like my old s7 edge after 4 years .. 3.5 to 4.5 SOT .
Is this normal ?
Same here mate, but this might improve with software updates.... At least I hope so
s3riouss said:
Same here mate, but this might improve with software updates.... At least I hope so
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I hope.. i am afraid that the device has high power consumption design that with time should only get worse.
Give it 4 days to settle down. But yes it does drain faster than s10+. I knew that before pre-ordering but I thought Samsung would have figured something out...
Sent from my [device_name] using XDA-Developers Legacy app
Guys this is completely normal for the phone to drain this fast, the phone is learning all your usage patterns in order to adjust the battery, use this time to go over the settings and tweak it to your liking. Also in the s10+ forum there is a battery optimisation post, go over there and apply it to your phone. Also maybe you are using the ultra high definition and 120hz, maybe start with that to tweak it.
Another thing is if you just restore the phone from a backup, this can bring corrupted settings that might be the culprits do factory reset and install all from zero without a backup.
''maybe you are using the ultra high definition and 120hz, maybe start with that to tweak it.''
thats physically IMPOSSIBLE now
I assume that you are using the exynos versions?
Sent from my SM-G985F using Tapatalk
I had 7 1/2 sot yesterday SD 120hz
Second day, 120Hz is lovely but damn, I'm at home connected to my WiFi and it's draining like crazy, I'm worried how is it gonna look when I go outdoors to the college and will be using LTE. I'm on Exynos
I'm getting 2 hours of SOT through my day (7 am to 10 pm)
It's been a week that I've been using the Exynos version @ 120Hz RR. Battery life is way worse than S10+ on similar settings, tweaks and usage pattern.
I have charged my phone for the 2nd time and i get +- 5 hours of sot. I use everything on the phone, 120hz etc. The battery is still in the learning pattern phase...getting same battery life as I got on my S10+. I get roughly 24 hours with one charge and 6 hours is included when I sleep...The battery will get better. With my S10+ I got 24-36 hours of battery time with +- 3-5 hours sot...depending on usage...So if I can get the same or a bit better I would be very happy
Virgo_Guy said:
It's been a week that I've been using the Exynos version @ 120Hz RR. Battery life is way worse than S10+ on similar settings, tweaks and usage pattern.
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True. Battery life is horrible. I don't want to use such a phone tbh
iamnotkurtcobain said:
True. Battery life is horrible. I don't want to use such a phone tbh
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I'm reading pretty bad about the Exynos Ultra as well in different but reliable sources. It's a pain to have a primary driver that dies mid-day on medium usage, that era of "unacceptable batterylife" on a flagship is believed to be over years back. I remember me behaving in an uncivilized? manner with the ones who tried to defend Exynos S9+ in every online forum when the culprit was the SoC itself to start with..
no wonder they didnt want to enable 120hz at 2K res - it would kill the battery in 1h probably
Shuthefrontdoor said:
I had 7 1/2 sot yesterday SD 120hz
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7.5hrs screen on time? How? First person I've heard that high.
I have the S20+ with the snapdragon processor. I think the battery life is very good, way better than my P4XL. I have 4 hours sot right now and have 60% left. I'm using 120 hz refresh rate. I believe it has gotten better over time, either from "settling" or updates, or maybe my imagination, haven't actually checked but some nights I go to bed after a day of light use and I'm shocked at the battery left. I unplug at 6am and at 10pm I've seen 80% battery left. That's minimal use like I said, not a typical day.
I think the battery life is quite alright, on par with my second phone (OnePlus 7 pro)
Exynos/12gb ram/120hz: stranded on 12%, so it would be around 7.5hours of SOT in full day.
Note: got the phone 3 days ago, it's still settling.View attachment 4977585
Sent from my SM-G985F using Tapatalk
I have the snapdragon version and the battery on this thing is a BEAST!
Going on 34 hours off the charger and 7 hours of sot. I have done nothing to conserve battery. Loads of apps/accounts syncing. I am super impressed. Way better then my s10+ was.
120hz on, about mid-brightness, I'm lasting all day use with my personal usage habits. Battery life is as good if not a bit better than on my Note 10+. Snapdragon here on T-Mobile. Mostly WiFi. But it's only been about a week of use.
Can't complain at all.
ETA: Also BT always on using with my Frontier watch and Galaxy Buds on occasion.