Develop Bugs

CHARGE CLARIFICATION - and also apps & extra battery [q]

Hi
The Nexus is my first smartphone (came from a Samsung FT480). I'm wondering how long I need to charge my phone for before I can unplug it - I don't want to semi-charge it or not charge it correctly, especially in the first few weeks.
I've only ever charged the phone once - it says in the 'settings>battery' section '100%-charging' but it has said this for the past 3 hours. My questions regarding battery charging:
- How many times should I let the phone die (battery depletes completely) before more regular charging?
- How long should I keep it on the charger (approximately) from a flat battery?
---
My question regarding apps is that I've seen in the Galaxy S2 you can rearrange the order apps are placed in the apps menu (not the customisable homescreen area, the other place you find the majority of your apps). Can you rearrange where apps are placed in this section if you know what I mean?
---
My final question is regarding battery spares. I have found a Samsung 1850mhz battery (original) and I was wondering if I purchased that would it fit the Nexus and provide beneficial increases to battery life? I've been told that it 'should' fit although is this a worthy investment/something to consider?
Please forgive my lack of technical terms or explanations as I have no idea how to get into these kinds of phones, still learning. Thanks in advance for your assistance

Regarding charging, batteries have improved quite a bit over the years. In my personal experience of owning different smart phones, doing multiple charging cycles doesn't really seem to make any noticeable difference to battery life in the long term. The only things I really make sure to do is charge to 100% on first use and drain as much as possible before charging again. I've been doing this for a few phones and they have been fine.
As for rearranging applications, this cannot be done in the stock android launcher, but can be done in launchers like adw.
As for the battery I think you mean 1850mAh. This is only a guess but I think if its the same physical battery size and the voltages are the same the higher the mAh (milliamp hours) number the longer it should last.
Hope this helps.

RTContent said:
Regarding charging, batteries have improved quite a bit over the years. In my personal experience of owning different smart phones, doing multiple charging cycles doesn't really seem to make any noticeable difference to battery life in the long term. The only things I really make sure to do is charge to 100% on first use and drain as much as possible before charging again. I've been doing this for a few phones and they have been fine.
As for rearranging applications, this cannot be done in the stock android launcher, but can be done in launchers like adw.
As for the battery I think you mean 1850mAh. This is only a guess but I think if its the same physical battery size and the voltages are the same the higher the mAh (milliamp hours) number the longer it should last.
Hope this helps.
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Thanks for this reply. I'm not sure what to expect since my old FT480 (obviously not a smartphone) would last 3 to 8 days without a charge and it had a 1000mAh battery (relative to its screen size, operations etc it is fine). The Nexus loses 4% of battery life replying to 1 text message whilst on 2G mode. Its losing 10% of battery life per 3 minutes when connected to the 3G network. On standby I'm losing 4% every 20 minutes.
The phone seems amazing bar my battery issues. Thanks again,

4% replying to one text on 2G, losing 10% of battery PER minute on 3G and on standby 4% every 20 minutes without any background apps on?
Sounds like that current battery tech isn't keeping up with hardware. This isn't news.
Does anyone know is this is the average for the Nexus? Does anyone know about a 1850mAh battery and how much more beneficial it will be over the 1750 standard?

mnexusaud said:
Thanks for this reply. I'm not sure what to expect since my old FT480 (obviously not a smartphone) would last 3 to 8 days without a charge and it had a 1000mAh battery (relative to its screen size, operations etc it is fine). The Nexus loses 4% of battery life replying to 1 text message whilst on 2G mode. Its losing 10% of battery life per 3 minutes when connected to the 3G network. On standby I'm losing 4% every 20 minutes.
The phone seems amazing bar my battery issues. Thanks again,
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this seems very abnormal even in the beginning...
turning sync OFF (manual) helps alot.
also, turning wifi/bluetooth OFF would seem to help as it won't transmit to try and connect.
finally, brightness of the screen affects battery. maybe try to keep it at a non-max level (if that is what it is at) that is suitable for you.

superbobup said:
this seems very abnormal even in the beginning...
turning sync OFF (manual) helps alot.
also, turning wifi/bluetooth OFF would seem to help as it won't transmit to try and connect.
finally, brightness of the screen affects battery. maybe try to keep it at a non-max level (if that is what it is at) that is suitable for you.
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I have the brightness set at about 40% with syncing/etc all turned off. My brother has a Galaxy S2 and uses it just to check text messages/make calls (no data plan, hardly ever connects to 3G) and his lasts 9 days on a single charge.
On the S2 you can actually get into detailed network info and check/uncheck 3G and all of that - how do you do that on ICS? I can only find the option to use 2G.
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What does this mean exactly?

Cell Standby 66% battery usage

My battery died in a few hrs today and the culprit seems to be 66% cell standby. I've never experienced this kind of drain before. I'm running the latest Franco Kernel and I'm wondering if anyone else is seeing this?

I just posted something exactly like this earlier in the day. Do you have google chrome and recently updated? I think when I just uninstalled it, it fixed my problem...
Sent from my GT-P7510 using xda premium

would be amazing if you actually posted a screenshot of your usage, with awake time, screen on time, and network state....

Leave your screen on all of the time. It will make the cell standby percentage go down .
On a serious note. what's the time without signal? Just press on cell standby and it will tell you the percentage I think. It sounds like you didn't have coverage and your phone was constantly trying to find it...which would kill your battery fairly fast and probably make your phone warm in my experience.

martonikaj said:
would be amazing if you actually posted a screenshot of your usage, with awake time, screen on time, and network state....
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I've noticed that juice defender ultimate hasn't been running so maybe this has been a problem I didn't notice, I turned it off because I hate how long it takes to bring 4G back up...
phone has of course been on the charger since I was less than 10% but:
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What did your network level look like over that drain? It looks like you have bad signal, but it shouldn't effect it that much if you're on WiFi the whole time... as noted before, a radio constantly hunting for better 3G/4G signal can really drain the battery.
How much screen on time was that? Probably pretty low?

56% of the time you were without a signal? Where do you live? Alaska? On a serious note though...I'd recommend switching to 2g/3g or wifi when you're having trouble finding a signal.

martonikaj said:
What did your network level look like over that drain? It looks like you have bad signal, but it shouldn't effect it that much if you're on WiFi the whole time... as noted before, a radio constantly hunting for better 3G/4G signal can really drain the battery.
How much screen on time was that? Probably pretty low?
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screen time was essentially zero, I took a nap and when I woke up phone was near death. :-/

anton2009 said:
56% of the time you were without a signal? Where do you live? Alaska? On a serious note though...I'd recommend switching to 2g/3g or wifi when you're having trouble finding a signal.
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WOW yeah didn't even see that. There's the drain right there. Your phone is boosting power to the radio to try and get a signal and just obliterating the battery.

anton2009 said:
56% of the time you were without a signal? Where do you live? Alaska? On a serious note though...I'd recommend switching to 2g/3g or wifi when you're having trouble finding a signal.
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At home, my signal is generally 2-3 bars 4G, maybe we're having tower issues in my area. This battery consumption is definitely not the norm for me. Kind of took me by surprise which is why I posted...

mwalt2 said:
Leave your screen on all of the time. It will make the cell standby percentage go down .
On a serious note. what's the time without signal? Just press on cell standby and it will tell you the percentage I think. It sounds like you didn't have coverage and your phone was constantly trying to find it...which would kill your battery fairly fast and probably make your phone warm in my experience.
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So it is true that when your phone did not have network connection, it will constantly find coverage and thus account for the awake time in the battery state? Therefore eating up the battery life, even though the screen is off?

oblivionstalker said:
So it is true that when your phone did not have network connection, it will constantly find coverage and thus account for the awake time in the battery state? Therefore eating up the battery life, even though the screen is off?
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Yes. This is true. The phone pushes more power to the radio also, which drains the battery.
Sent from my Galaxy Nexus using XDA

[Q] Wifi Not Sleeping

I posted in the wrong thread earlier but here's the situation. No matter what rom I run, wifi won't sleep. Optimizer is off and wifi on during sleep is set to "only when plugged in". I've rebooted the phone and will post back to see if that fixed the problem. Just wanted to make sure that I should see the wifi sleep when the phone sleeps, correct?
Now that I'm thinking about it, maybe I should be asking this question. What drains more power, wifi always on or a phone trying to stay connected to a very weak 3g signal?

Reboot didn't solve the problem. Maybe its a reporting issue. I didn't hear any notifications and when I woke the phone it messaged that it connected to my network. Dunno!!
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I know my WiFi takes a few minutes to actually turn off after the system goes to sleep. To me it seems as if there's some timeout where it waits x amount of minutes after the last data access before it turns off? But that being said... it does look like your system is waking up an awful lot even when the screen is off. I might venture a guess that you've got some app that is keeping the system awake and in turn holding open the WiFi connection.
Have you tried Better Battery Stats to see what might be going on?

Have you tried Better Battery Stats to see what might be going on?
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I'll give that a go.

And a weak 3G signal will drain battery A LOT faster than wifi because the phone keeps searching for new towers where it can get a better signal from.

I've only had the phone 5 days, maybe I should just swap it out.

CNexus said:
And a weak 3G signal will drain battery A LOT faster than wifi because the phone keeps searching for new towers where it can get a better signal from.
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Listen to this man, he knows what he's talking about.
I hang out with friends every Thursday night down in Long Beach. The friend's house we go to has horrible 3G reception. I never connected to his Wifi and always lost 40-50% of my battery in the two hours that I was at his place (without even taking my phone out of my pocket). My phone would be hot and I'd be losing power faster than Apollo 13 (too soon?). Once I started connecting to his wifi, I'd see a drain of 5-10% in those same 2-3 hours. No more burning pant pockets, either.
That being said, I don't think it's the wifi that's causing your battery drain. Looking at your battery screen, something is keeping your phone awake most of the time. Also, as suggested previously, Better Battery Stats is a great program that can help you see what's causing Kernel Wakelocks and Partial Wakelocks. Once you find out what's causing this (typically some sort of data sync or gps services), you can make the choice of that app or battery life. It's made a whole lot of difference on my battery life. Note: Better Battery Stats won't fix the problem for you; it's just a tool to help you find the problem so you can fix it yourself. Don't expect it to make julienne fries or cure your sepsis. That's what the Shamwow is for, of course! Ok, it's late and I'm getting goofy. I'll check in to see if anything helped.

Sorry to go OT, but nice picture topherk :thumbup:

topherk said:
Listen to this man, he knows what he's talking about.
I hang out with friends every Thursday night down in Long Beach. The friend's house we go to has horrible 3G reception. I never connected to his Wifi and always lost 40-50% of my battery in the two hours that I was at his place (without even taking my phone out of my pocket). My phone would be hot and I'd be losing power faster than Apollo 13 (too soon?). Once I started connecting to his wifi, I'd see a drain of 5-10% in those same 2-3 hours. No more burning pant pockets, either.
That being said, I don't think it's the wifi that's causing your battery drain. Looking at your battery screen, something is keeping your phone awake most of the time. Also, as suggested previously, Better Battery Stats is a great program that can help you see what's causing Kernel Wakelocks and Partial Wakelocks. Once you find out what's causing this (typically some sort of data sync or gps services), you can make the choice of that app or battery life. It's made a whole lot of difference on my battery life. Note: Better Battery Stats won't fix the problem for you; it's just a tool to help you find the problem so you can fix it yourself. Don't expect it to make julienne fries or cure your sepsis. That's what the Shamwow is for, of course! Ok, it's late and I'm getting goofy. I'll check in to see if anything helped.
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Oh, I'm not worried about the drain...I was using the phone heavy in the above screen shot. I'm worried the phone is defective if the wifi won't sleep at all when the correct settings are chosen. It should sleep, and if it doesn't, then in my mind the phone is broken. It's a six or 7 day old phone...it should be flawless. Right? But, per all your info, it appears it's only a cosmetic "broken" phone. My wifi will be on when at home 100% of the time because Sprint's signal sucks ass here. Either way, thanks for all the info everyone.

[Q] Another Battery Drain thread

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I am stock rooted
This battery drain is so pathetic, please help me out on this one guys.
I charged to 100%, then played games for like 50 minutes, Plants Vs zombies for around 32 minutes and Kingdom rush for the remaining.
Charge became 84% , not sure if this one is to be expected.
But the main issue was the drain during screen off, i went to sleep when the charge was 84% and the device was screen off for almost 8 hours,
I woke up and checked, now its 66% ???? . really around 18% drain during a 8 hour screen off window
This is so lame, i checked the battery usage, nothing seems out of the ordinary, yes WIFI was On the whole time, is that the reason..
Does the notifications cause battery drain?, i had received some mails and t-mobile my account crap had sent some notification and LED was glowing all along.
i moved from note 1 only because of the stupid drain during screen off, its annoying , i know we can switch off WIFI, data, restart the device and use some app to reduce the drain, but i thought the battery will be good out of the box with Note 3, this feels the same like my note, no difference, something is messed up.
Any help is appreciated sorry for my bad English.

that idle drain seems very excessive. I lose like maybe 1% overnight. have you managed your accounts and only sync the necessary things? that could be a big drain.

Yes thats very excessive , thats why i am losing it, i did check for syncing, apparently nothing was running overnight.
Could be because i have only one point in the network signal? , not sure, i did check on the Cell standby it said "Time withou signal 0%"
i never had 1% drain overnight , would be nice if i can find out a way to make it work for me as well.

Call me strange, but if i am going to be sleeping, I plug it in. When I wake up even with just a nap the phone is fully charged.

i do too.. but i want to check the battery drain during sleep, often when traveling, i wont even use the phone but it would have drained , that's why i am checking how bad the drain is and the ways to fix it.

not sure you need these setting enable or not, but try uncheck all in Location Services under Setting.

Maybe you should start with basics and see what have you changed, since this drain begin?
For example I was trouble shooting WiFi calling and followed one of suggestions to shut down WiFi power save in service menu. It didn't work (updating router FW did the trick) and I forgot about it, but then I realized my phone was discharging 20% overnight (yeah, I charge when come home from work, by the time I go sleep phone is fully charged) and this was way too much. To make long story short, once I put WiFi save mode back on, I get 3% discharge overnight as it should be. The problem with such high discharge rate was that the phone barely lasted a day of light use and if I forgot to charge it night before it would be dead before morning. It also kills battery to have it fully charged daily, battery will lasts much longer if the charge is light (80% to 100% for example.)

Yup, i think it was this Wifi power save option in the service menu, i had switched this off and forgotten about it. thanks for reminding me .
i will check tonight as well.
Bad thing about this setting is, its very hard to pinpoint if you had forgotten about changing this setting, it wont show up in any of the battery usage app.

Go into wifi, hit menu and go into advanced settings. Uncheck wifi always scanning.
Sent from my SM-N900T using XDA Premium 4 mobile app

Those 2 games kill battery like a mutha, even if you kill the screen. I always use androids built in task killer by holding home button for a few seconds and killing battery hogging apps like those. If i do decide to end up installing those again and playing them i can expect shorter battery life for sure. Ever since i stopped gaming on my phone less and just game on my 360,ps3 and now wii u(kids got 1 for xmas,mario 3d world is addicting lol) ive seen huge boost in battery life and light to normal battery consumption on common sense settings for our phones.
Sent from my SM-N900T using xda premium

Yeah idk I barely use my phone and still only get about 12 hours out of my phone. I think 4.3 just doesn't like our battery hopefully 4.4 is better.
iTzXAmAzED On Note3

First day with M8, feel battery is draining fast

i feel like my battery is draining fast, i havnt done much today on the phone only a little over an hour of screen on time, and not sure if its normal but was at the movies and my phone was pretty warm in my pocket doing nothing
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First day? You might try a couple of charges before hiding it. It's not terrible. About 4 hours of screen on in 21 hours is not that bad for first charge.

I notice from the screenshot that your 4G reception is pretty poor (only 1 bar). The radio is by far, the biggest drainer of battery life. So that being considered, your battery life isn't bad.

jlevy73 said:
I notice from the screenshot that your 4G reception is pretty poor (only 1 bar). The radio is by far, the biggest drainer of battery life. So that being considered, your battery life isn't bad.
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but should that matter when im on wifi? and my s5 didnt have that problem with pretty much the same reception

iamloco724 said:
but should that matter when im on wifi? and my s5 didnt have that problem with pretty much the same reception
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It's going to be more efficient on Wifi. Low signal won't do much, but when it has to constantly search it drains fast.
Here's mine, had it since April 1st and the battery has been consistent.

Doesn't my held awake time seem high? It's higher then my screen on time all I did on the phone today was text, go on Facebook on and off and browse the Web a bit

iamloco724 said:
i feel like my battery is draining fast, i havnt done much today on the phone only a little over an hour of screen on time, and not sure if its normal but was at the movies and my phone was pretty warm in my pocket doing nothing
I have the same problem with my New M8 which I just bought 2 weeks ago.
My situation is the fully charged battery will drain out 20% of power after 6hours sleep. I am pretty sure I turned off all apps before going to bed.
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[email protected] said:
iamloco724 said:
i feel like my battery is draining fast, i havnt done much today on the phone only a little over an hour of screen on time, and not sure if its normal but was at the movies and my phone was pretty warm in my pocket doing nothing
I have the same problem with my New M8 which I just bought 2 weeks ago.
My situation is the fully charged battery will drain out 20% of power after 6hours sleep. I am pretty sure I turned off all apps before going to bed.
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Battery savings can be had by making sure the display brightness is set to auto. Tbh your battery drain looks normal. There's loads of stuff going on the background when WiFi is on. You can cut some of it down by turning WiFi off when you don't need it and going to your account settings and unchecking some of the sync items you don't need.
I find the battery life suprisingly good considering how long I have the screen on sometimes. I've had full days out of it with constant use . Normal use I'll get 2 days easy.
Also I find this the best battery monitor app. The easy to read timeline graph shows exactly when and where the drain is. https://play.google.com/store/apps/...edium=organic&utm_term=battery+monitor+widget
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ashyx said:
[email protected] said:
Battery savings can be had by making sure the display brightness is set to auto. Tbh your battery drain looks normal. There's loads of stuff going on the background when WiFi is on. You can cut some of it down by turning WiFi off when you don't need it and going to your account settings and unchecking some of the sync items you don't need.
I find the battery life suprisingly good considering how long I have the screen on sometimes. I've had full days out of it with constant use . Normal use I'll get 2 days easy.
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I keep brightness almost all the way down due to sensitive eyes, and I have nothing syncing
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iamloco724 said:
ashyx said:
I keep brightness almost all the way down due to sensitive eyes, and I have nothing syncing
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So you unchecked all the sync options for your Google account?
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ashyx said:
iamloco724 said:
So you unchecked all the sync options for your Google account?
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Yup
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Click to collapse

Convert to GPE and install a custom kernel and you will get much better battery.
Sent from my HTC One_M8 using Tapatalk 2

I only get 3 hours tops of screen on time. Seems too little, from what I've been reading. I have wifi, mobile data and GPS always on and mostly use 4g since I don't have wifi at work. Is this normal?
Some GSam battery monitor screenshots :
http://forum.xda-developers.co...
http://forum.xda-developers.co...
Cheers