I'm noticing that battery life is worse in 4.2.2 - I was on cm10.1 nightlies w. Cm10.1 kernel and was getting about 10 hours screen-on time before I needed to charge, but I'm getting 7 hours at best on 4.2.2 stock (rooted, bootlader locked).
I have the usual culprits turned off - Google now, location services, currents background updates etc. So I hoped I would at least get the same.
Anyone else?
eager27 said:
I'm noticing that battery life is worse in 4.2.2 - I was on cm10.1 nightlies w. Cm10.1 kernel and was getting about 10 hours screen-on time before I needed to charge, but I'm getting 7 hours at best on 4.2.2 stock (rooted, bootlader locked).
I have the usual culprits turned off - Google now, location services, currents background updates etc. So I hoped I would at least get the same.
Anyone else?
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Click to collapse
Put the latest cm10.1 build on. They merged in 4.2.2.
eager27 said:
I'm noticing that battery life is worse in 4.2.2 - I was on cm10.1 nightlies w. Cm10.1 kernel and was getting about 10 hours screen-on time before I needed to charge, but I'm getting 7 hours at best on 4.2.2 stock (rooted, bootlader locked).
I have the usual culprits turned off - Google now, location services, currents background updates etc. So I hoped I would at least get the same.
Anyone else?
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Click to collapse
I have never gotten more than 8 hours of battery life with 4.2.1, but so far on 4.2.2 I'm down to 73 with 3:30 screen time, so I guess it got better for me
Sent from my Amaze 4G using xda app-developers app
blackhand1001 said:
Put the latest cm10.1 build on. They merged in 4.2.2.
Click to expand...
Click to collapse
Yes! I just read that. I am just about to do it now.
I can't comment on battery life, but did notice something a little alarming with regard to battery drain. Was on the couch for an hour talking to someone using viber, just plain text. No video or audio. Tablet was plugged into the wall, and after about an hour i noticed that the battery had gone from 100% to 98%. Should not be possible for a simple messaging app to cause the battery to drain faster than it can charge. screen was on auto brightness as well.
hughlle said:
I can't comment on battery life, but did notice something a little alarming with regard to battery drain. Was on the couch for an hour talking to someone using viber, just plain text. No video or audio. Tablet was plugged into the wall, and after about an hour i noticed that the battery had gone from 100% to 98%. Should not be possible for a simple messaging app to cause the battery to drain faster than it can charge. screen was on auto brightness as well.
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Click to collapse
Did you look at your battery information to see what was using the most energy? Display is always far and away the highest for me, and if it was on Auto Brightness, depending on the lighting around you, it could have been running at full brightness...which would be a pretty massive drain on battery.
hughlle said:
Tablet was plugged into the wall, and after about an hour i noticed that the battery had gone from 100% to 98%. Should not be possible for a simple messaging app to cause the battery to drain faster than it can charge
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Once the device reaches a full charge it cuts off the power draw to avoid damaging the battery. It's normal for it to hover between 97% and 100% while still plugged in.
I barely get 6 hours of use now.
Jackietreehorn said:
Did you look at your battery information to see what was using the most energy? Display is always far and away the highest for me, and if it was on Auto Brightness, depending on the lighting around you, it could have been running at full brightness...which would be a pretty massive drain on battery.
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I did not look at battery usage, but the screen was generally dimmed, where as normally i have it manually set to full brightness, and nothing was running in the background that would not normally be running, that is to say nothing other than android stuff, it's basically a tablet for internet, email and skype/viber while i watch films etc on my computer
Fromako said:
Once the device reaches a full charge it cuts off the power draw to avoid damaging the battery. It's normal for it to hover between 97% and 100% while still plugged in.
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Click to collapse
Indeed, but this has never happened before and i typically run the device with screen on maximum brightness. on 4.2.1 it would always show 100% when plugged in, i never once saw it drop to 99% or below.
So without further analysis of the issue, it could either be that something is sucking more power, which would seem odd, or that the update has brought about changes to the way the device charges, or changes to the way the device displays the battery level.
Damn guys, I don't know what I'm doing wrong, but I'm jumping around in happiness when I manage to get over 6 hours of screen time lol.
I've been on battery for the past 12+ hours with about 6 hours 15 minutes screen time and still have 36% battery left. Battery seems at least as good as on 4.2.1.
... beamed from my Nexus 10 to your planet
bee55 said:
Damn guys, I don't know what I'm doing wrong, but I'm jumping around in happiness when I manage to get over 6 hours of screen time lol.
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Click to collapse
if you are rooted change your processor speed to 1.5gHz, it really helped me get better battery life
so far at 6 hours of youtube with 50% left to go
filthygoat223996 said:
if you are rooted change your processor speed to 1.5gHz, it really helped me get better battery life
so far at 6 hours of youtube with 50% left to go
Click to expand...
Click to collapse
Thanks, I've done this now, and get about 5~6 hours of screen time now with around 50% left.
My battery life has gotten considerably better after updating to 4.2.2. The biggest improvement is how little the battery life drains on standby...it's nearly nonexistent.
Sent from my Nexus 10 using Tapatalk HD
Standby has always been great for me. With stock rooted 4.2.2 I'm getting great battery life. Loses maybe 2% after 8-10 hours idle. In constant use I'm averaging 11 hours on screen. I have everything on and synced but as I'm indoors I stick to 30% brightness. Also, I'm mostly just browsing. With games the life would be less for sure. Totally satisfied with the battery life of this tablet. If yours is getting truly bad battery life I suggest you try searching for rogue apps. After that, try a complete reflash of the stock image which deletes everything. Another thing I've found that helps performance is setting the WiFi band manually. As I have a pretty good router that utilizes both the 5 and 2.4ghz bands I set mine to 5ghz only. I live in a town house and 2.4ghz can be pretty congested even after turning my antenna power up to 150mv or greater. The 5ghz band is pretty open. I'm getting load times on webpages comparable to my i5 2500k sandy at 4.5ghz and ssd with its 5ghz WiFi n wireless card. This is the quickest rendering tablet I've ever used.
As an aside, the complete re image to stock 4.2.2 from Google might fix reboot problems as well. It seems to do wonders for people with battery and other issues on early n4s. My screen on mine is new but the hardware is from launch day.
Sent from my Nexus 4 using xda premium
Well...
Well, I haven't tried that, but I have heard that many people said the update can help save battery.
i just got the update i was barley able to hit 3 hours screen time lets see how this one lasts.
sotorious said:
i just got the update i was barley able to hit 3 hours screen time lets see how this one lasts.
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Three hours T h a T Is horrible
Sent from my HTC Ruby using xda app-developers app
My battery life is significantly worse after the update. I flashed back to stock 4.2.2. It seems that the problem with mine is my tablet isn't sleeping. Android os is the highest battery user. Maps is taking a lot too. I have Google now and location services turned on so I'll try disabling those again... No rebooting though
Sent from my Nexus 10 using Tapatalk 2
filthygoat223996 said:
if you are rooted change your processor speed to 1.5gHz, it really helped me get better battery life
so far at 6 hours of youtube with 50% left to go
Click to expand...
Click to collapse
do you mean reducing the maximum cpu clock to 1.5 ghz?
I have very bad battery life since 4.2.2. Trying to understand why that happens. I had around 3.5-4 hours SOT in 13-14 hours total usage which is very fine for me. I don't have very good reception, I know this drains battery but I'm living in same place so reception is still the same. Tried most of the roms and kernels. Flashed everything to stock 4.2.2 manually too but now the most battery life I can see is 2-2.5 hours SOT in 7-8 hours total. This is terrible compared to people at forums. Especially my screen started to eat battery too much, consumes %10 of battery in 25 mins. Even if I don't run nothing, don't use cpu, just kept cpu at 384mhz and screen on to test. I don't know much about these things but started to think 4.2.2 radio may have problem with me. Is that possible? Or what should I do? I will be really appreciate with your comments.
No. It's fine. Update the baseband if you choose to.
Hi,
I have an LG G2 (for more than 18 months) which I really like (and still can't find a compact 5-5.2" smartphone to replace it with) but it seems that lately the battery drains quite fast when having the screen on.
Brightness is set at Auto + 50%, as always. The drain seems to be around 1% per 2 minutes. Screen is reported to consume about 50% of the battery. I don't think it would last more than 1.5-2 hours untill the battery drains completely. I noticed others getting like 4-6 hours of screen time.
I performed a factory reset and things look better overall but as soon as I use the screen the accelerated battery drain starts. I am using the 30b lollipop update, phone is 100% stock, no root.
Is this considered normal ? Should I attempt to replace the battery ? Is 18 month too much for it ?
Thanks !
Turn off the wifi when you are not using it. Whenever my wifi is on and connected my battery drains like crazy.
And i am rooted with exposed and power nap.
After i turn off my wifi my battery isnt draining at all.
Cheers
gocegi said:
Turn off the wifi when you are not using it. Whenever my wifi is on and connected my battery drains like crazy.
And i am rooted with exposed and power nap.
After i turn off my wifi my battery isnt draining at all.
Cheers
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Click to collapse
Thanks, but I always thought that Wi-Fi is much less battery intensive compared to the GSM data connection...strange.
Yeah it supposed to be like that, but our driver for wifi on lollipop is garbage
I'd recommend replacing the battery as well.
A healthy battery should produce the results you see others enjoy.
How is your performance with kit Kat and jelly bean?
I changed from Note 3 to s 6 edge plus recently
The battery drops 5% per hour overnight when not in use. If I go to bed with less than 40% battery at night I am sure to wake up with my phone switched off in the morning.
When in use with screen on, the battery drips one percent every two minutes. This is the worst battery life I have ever seen in a phone. I was a long loyal customer of samsung and this is my last samsung phone ever.
Extremely disappointed
Please post your battery stats ? so we can have a better understanding of your problem. I suggest you install 'Doze' which should stop unnecessary apps from connecting to the internet and causing your phone to awake from deep sleep.
Dear Akbar 11
Heres the battery stats....is it normal?
I had the same issue, and as far as I managed to find out, it is a bug in Samsung's kernel. Flashing Arter97 kernel solved the issue for, but do post battery stats from SmartManager. If it says 'Android' or 'Android OS', then you have the same problem many of us do.
I don't think it's a kernel problem. My android OS is very low 4%. Like zoolok said post your battery stats from settings, battery, battery usage
I have the same problem. Battery was great before I flash custom rom. After going back to stock I have big battery draining. I must stay on custom rom. With Audax rom and Skyhigh kernel i have great battery life.
You have either messed up something big or you have an app in the background that is eating up your battery like no tomorrow.
And the reason i say that is because i recently got this battery life on my Galaxy S6 edge+.
And this was taken 2 days ago.
Here i use the CRISSCROSS ROM, AudaxPro Kernel, Greeinify and Samsung's own 'Appoptimizing' feature (same as Doze in Android 6.0).
So my battery life is pretty awesome.
i have problem whit battery lose 25% when i sleep
This is a usual day with s6 edge plus
Any help?
jonynoname said:
Any help?
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Click to collapse
http://forum.xda-developers.com/showthread.php?t=1179809
i have this problem battery ... if u fixed it tell me how?
Well I was expecting Google Play Services to be eating your battery (which is quite common) but it looks like your Andriod OS is eating the most battery. I would uninstall Facebook and use the web version it always helps with the ram and battery furthermore, turn off location if you are not using it and check accounts which are being synced. These are the only tips I can give you as I have never seen Android OS drain so much battery.
Since a few days Google Play Store is eating up my battery: I go to sleep with 100% batt and wake up with 50%, if I check batt stats on top I have play store at 45%, with 5h active a d 2h of CPU.
Follows Android system at 5%.
Going crazy why...
jonynoname said:
This is a usual day with s6 edge plus
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Click to collapse
You've charged your phone 4 times during that day. I can't see what's the interesting part here.
Hi guys,
I got a 32 gig grouper off Ebay in July 2015. From the get go, I was impressed with the battery life, and it got even better when I went the custom rom route. My main use case is streaming movies or TV in the evening for a few hours, and otherwise leaving it in standby/airplane mode to conserve battery life until the next viewing. Typically overnight, the battery sips power -- maybe 2-3% lost in 7-8 hours.
Over the past month, though, I've seen a considerable dip in the standby/airplane mode time in particular. Now, overnight I seem to lose 10-15%. I realize batteries have a lifespan, but I figured I'd see a more gradual drop?
I tend to only have 4-5 streaming apps on the tablet at a time. Currently I'm running CM11 stable, but I observe this standby battery drop in all roms -- I've gone as far back as 4.1.2 (stock + unrooted) and all the way up to CM13 unofficial. I used better battery stats/GSAM but never really caught any wakelocks that would account for that much power lost.
At a loss for what to try next. I can capture screencaps if it helps, but they never really told me anything (perhaps someone else would get more info from them.) Any help is appreciated!
Also, my on screen time feels about the same. I've drained the battery a few times with some streamed video, and I get around 4-6 hours. It's the standby time that has dropped off considerably.
http://postimg.org/image/mcr6lrjex/
http://postimg.org/image/5r6kaz4b3/
http://postimg.org/image/5r6kaz4b3/
mh1983 said:
http://postimg.org/image/mcr6lrjex/
http://postimg.org/image/5r6kaz4b3/
http://postimg.org/image/5r6kaz4b3/
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Click to collapse
Get Kernel Aduitor or a CPU managament program and see if your tablet is going into deep sleep or if it's still at another clock frequency or if a program is keeping it up.
Thanks for the reply!
My N7 is in deep sleep about 80% of the time on a typical charge, the other 20% being used for on-screen usage (video streaming and browsing typically). It's maddening -- I now lose 15-20% on standby/airplane mode overnight. I don't see any flags in better battery stats or GSAM battery monitor. Most apps are greenified, too, and location services/other potential draining factors are disabled.
Is it just a bad battery?