Official Battery Life Thread
- Thread starter Sal
- Start date
I did a test of my battery and I got 6 hours of on screen time with 10% battery left. This means my nexus screen uses about 15% of the standard battery per hour set at 40% brightness.
I use the built in power control widget and hit the brightness icon once. This sets the brightness to about 40% brightness which is what I use daily on the Nexus and previous android phone.
I turned off all other radios, Set to airplane mode which turns of 3g/4g and phone. I did this test to compare with my older 3g phones which are not activated.
I ran the builtin picture gallery program and ran the built in slideshow to keep the screen on.
I use the built in power control widget and hit the brightness icon once. This sets the brightness to about 40% brightness which is what I use daily on the Nexus and previous android phone.
I turned off all other radios, Set to airplane mode which turns of 3g/4g and phone. I did this test to compare with my older 3g phones which are not activated.
I ran the builtin picture gallery program and ran the built in slideshow to keep the screen on.
Picked my nexus up on launch day, and so far... gotta say I'm mostly impressed with the bat life (at least when I'm not using LTE). I can usually get a full day out of my extended life battery (with moderate browsing/email/IMing/etc). What really impresses me, is how well the phone does on WiFi. I've made it through 1d17hr of light use without charging the phone (aside from a minute here and there to pull files off of it)... and it's still got 33% left on the battery.
Your GN does not seem to go into sleep at all, according to the picture you posted. That does not seem right. Whenever screen is turned off, the phone also should have put into sort of sleep mode. However, yours has been awake all the time. That surely will eat up the battery.
Compare yours with mine attached.
Is anyone having problems with google plus killing battery?
Last night the phone was charged to 100% at 11:00pm, and I shut it off to go to sleep. Wife wakes me up when she's leaving, and I check it. It is OFF. I turn it back on, and it says there is 13% battery life left. Wtf. The other day I had turned on instant upload, and notifications were on for G+. But yesterday morning, I disabled ALL of that, including it syncing with my contacts. So why the hell is it killing my battery so much. It only started after the recent G+ update. Before that, the screen was the biggest battery drain. Any advice? I've got the phone off and charging, hopefully it will charge full before I have to go to work.
Last night the phone was charged to 100% at 11:00pm, and I shut it off to go to sleep. Wife wakes me up when she's leaving, and I check it. It is OFF. I turn it back on, and it says there is 13% battery life left. Wtf. The other day I had turned on instant upload, and notifications were on for G+. But yesterday morning, I disabled ALL of that, including it syncing with my contacts. So why the hell is it killing my battery so much. It only started after the recent G+ update. Before that, the screen was the biggest battery drain. Any advice? I've got the phone off and charging, hopefully it will charge full before I have to go to work.
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Thats horrible - id definitely be uninstalling the g+ update if I was seeing that.
I also don't know where it came up with that 3 hours number that it's showing for it being on battery. It had been 7.5 hours since I had unplugged it... and that was taken only about 5 minutes after I turned it back on.. lol
Ok... I think I found the problem. And it's my own fault. After charging it again to 100%, I turned it back on, and after 4 MINUTES it had dropped to 95% with G+ being 35% of the cause. I went through all the settings again, and while I turned everything off in the G+ app, I still had sync pictures set in my gmail settings. I'll report back to double check that was the issue.
Zygot3 ROM has improved battery life?
Just a quick note here...
I recently flashed the Zygot3 ROM, and today is my first day using it.
I am seeing pretty good initial results. Fairly long screen on time, and it appears that the Android OS line item in the battery usage page seems to be at a much lower percentage.
Screen is 63%
Android OS is 19%
I am about 3 hrs and 17 minutes in, with 82% charge left.
I also installed the extended battery yesterday, so that could be playing a role in better life as well, but the fact that Android OS is a much smaller percentage seems promising. I will post back later with results at the end of the discharge cycle.
Just a quick note here...
I recently flashed the Zygot3 ROM, and today is my first day using it.
I am seeing pretty good initial results. Fairly long screen on time, and it appears that the Android OS line item in the battery usage page seems to be at a much lower percentage.
Screen is 63%
Android OS is 19%
I am about 3 hrs and 17 minutes in, with 82% charge left.
I also installed the extended battery yesterday, so that could be playing a role in better life as well, but the fact that Android OS is a much smaller percentage seems promising. I will post back later with results at the end of the discharge cycle.
Re: Zygot3 ROM has improved battery life?
Unless something goes really really wrong, most of those custom roms would give us (either a little or moderate) increase of battery life, because of a modified kernel. Most of the current kernels for GN seem to focus on undervoltaging the CPU of GN while maintaining the stability. Undervoltaging will lead to the less use of the battery, thus causing less use from the Android OS.
Undervoltaging, however, could cause instability of CPU sometimes. So, if you see frequent force closing of application, launcher, or the phone itself, you might want to change the kernel with the slightly higher voltage.
Unless something goes really really wrong, most of those custom roms would give us (either a little or moderate) increase of battery life, because of a modified kernel. Most of the current kernels for GN seem to focus on undervoltaging the CPU of GN while maintaining the stability. Undervoltaging will lead to the less use of the battery, thus causing less use from the Android OS.
Undervoltaging, however, could cause instability of CPU sometimes. So, if you see frequent force closing of application, launcher, or the phone itself, you might want to change the kernel with the slightly higher voltage.
where on the phone can i compare sleep time for the phone vs on battery time. I see the little bar graph, but it doesnt really tell you the time the phone has been asleep compared to on.
This screen is ridiculous as far as eating battery. I have had mine connected to my computer charging and playing with it and it's still losing percentage at a good clip. I don't think my incredible lost battery percentage like this when playing netflix on it.
Screen is 71% of the battery right now and it's set extremely low on brightness. I lose about 5% for every 8-10 minutes of use when not charging.
Screen is 71% of the battery right now and it's set extremely low on brightness. I lose about 5% for every 8-10 minutes of use when not charging.
Your USB connection does not provide enough power to charge it, or even keep it at the same level, of you are using it while its connected to a computer. All LTE handsets are this way.
Sent from my Galaxy Nexus using Tapatalk
My GN usually ends a 16 hour day with about 30% left on the battery. I am usually on wifi 90% of the day and I would also consider myself a light user; Email, <1hr of games, ~1hr music, install a few apps and play with a few others, that's about it for me on a normal day.
Photo Album - Imgur
Those were my stats mid-battery drain test. Majority of the time off wifi, as you can see. I conducted my test as follows: Charged it fully offline (meaning phone turned off), played with it a little bit so that when i went to bed it was at 93%. Woke up at around 85% roughly 6 - 8 hours later, which is soso, but not terrible.
Then I set screen to 10 minutes, and made sure i played with it from time to time. Websites, navi / maps, tether, game for a second, ect ect. Before the battery finally died i had 4 hrs 50 mins of on screen time, roughly 4:40 of that was done after i woke up and began the "screen drain test" as it were. I should also point out, i was on LTE when i was not on wifi .
Last night i went to sleep with the phone at 99% and i you not, woke up with the phone at 97%.
When i FIRST got this phone, i experienced RAPID drains at the rate of 1-2% / minute of using the phone, but it would them seem like it leveled out around a set %, and the last bit would hold on longer. From that point i was always suspicious that ICS either had a calibration bug, or handled it differently than GB/Froyo...
Since then i've been charging all of my batteries using an external charger, and i can tell you that now that ICS is no longer doing the calibrating, my phone is lasting a very long time. my current stats are 24hr, 20% battery, 1.5hour on screen time (the majority of this was voice texting and apps), there was also alot of non screen use such as tethering and phone calls.
I recommend those with battery issues to either use an external charger or charge with the phone turned off to help level it out -> Then when you have drained your battery, pull it, re-seat it, and reboot the phone. You will notice it boots at 10% or so. Keep doing that till the phone can no longer complete boot, then charge it fully offline again. That is the sure fire way i've found to calibrate the battery properly in ICS. I do not think battery stat wipes work period.
Those were my stats mid-battery drain test. Majority of the time off wifi, as you can see. I conducted my test as follows: Charged it fully offline (meaning phone turned off), played with it a little bit so that when i went to bed it was at 93%. Woke up at around 85% roughly 6 - 8 hours later, which is soso, but not terrible.
Then I set screen to 10 minutes, and made sure i played with it from time to time. Websites, navi / maps, tether, game for a second, ect ect. Before the battery finally died i had 4 hrs 50 mins of on screen time, roughly 4:40 of that was done after i woke up and began the "screen drain test" as it were. I should also point out, i was on LTE when i was not on wifi .
Last night i went to sleep with the phone at 99% and i you not, woke up with the phone at 97%.
When i FIRST got this phone, i experienced RAPID drains at the rate of 1-2% / minute of using the phone, but it would them seem like it leveled out around a set %, and the last bit would hold on longer. From that point i was always suspicious that ICS either had a calibration bug, or handled it differently than GB/Froyo...
Since then i've been charging all of my batteries using an external charger, and i can tell you that now that ICS is no longer doing the calibrating, my phone is lasting a very long time. my current stats are 24hr, 20% battery, 1.5hour on screen time (the majority of this was voice texting and apps), there was also alot of non screen use such as tethering and phone calls.
I recommend those with battery issues to either use an external charger or charge with the phone turned off to help level it out -> Then when you have drained your battery, pull it, re-seat it, and reboot the phone. You will notice it boots at 10% or so. Keep doing that till the phone can no longer complete boot, then charge it fully offline again. That is the sure fire way i've found to calibrate the battery properly in ICS. I do not think battery stat wipes work period.
osubeavs728
Well-known member
- Jan 27, 2010
- 1,119
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I have been getting around 16+ hours on my battery. I don't have 4G in my town so I switched my network mode to just cdma, I'm on automatic brightness, sync is always on. Right now I'm at 1 day 3 hours on the battery with 43% left....I'd say that's pretty good for me at least
Re: Zygot3 ROM has improved battery life?
I take it back - battery life wasn't significantly better than with previous ROMs. The Android OS battery use percentage climbed back to normal levels as well.
I take it back - battery life wasn't significantly better than with previous ROMs. The Android OS battery use percentage climbed back to normal levels as well.
Here is an updated comparison between my wife's Nexus and mine. The two main differences between these two phones would be her's is on wifi 95% of the day whereas mine is on wifi probably 20% of the day. And my phone has an unlocked bootloader, while her bootloader is still locked. My phone is running stock everything.
They both have similar apps installed, Facebook, G+, email syncing, etc.
Her Android OS is awake 9.X hours out of a roughly 13 hour drain. My Android OS is awake 2.5 hours out of a roughly 13 hour drain.
Her usage isn't that much different that mine. She has a laptop that she uses for most of her computing during the day. Also, her screen usage as a percentage of battery drain is fairly close to mine, so I'm guessing our screens were on similar amounts of time.
They both have similar apps installed, Facebook, G+, email syncing, etc.
Her Android OS is awake 9.X hours out of a roughly 13 hour drain. My Android OS is awake 2.5 hours out of a roughly 13 hour drain.
Her usage isn't that much different that mine. She has a laptop that she uses for most of her computing during the day. Also, her screen usage as a percentage of battery drain is fairly close to mine, so I'm guessing our screens were on similar amounts of time.
My nexus is only 3 days old, but was it normal for anyone to see such a dramatic drop in battery, pulled off the charger right at %100 to ~%85 in about 10 minutes of usage? On 4g but still, my thunderbolt was better than this..
Also I get better battery life on 4g. I assume I have bad 3g reception but good 4g at home?
Sent from my Galaxy Nexus using Tapatalk
Also I get better battery life on 4g. I assume I have bad 3g reception but good 4g at home?
Sent from my Galaxy Nexus using Tapatalk
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