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Old October 4th, 2012, 11:55 PM   #51 (permalink)
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Turn off all the location services, even Google's location service. That literally doubled my battery life. I get about at least 12-20 hours if I barely use the phone (say 1-2 hours of screen time).

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Old October 9th, 2012, 07:04 AM   #52 (permalink)
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After installing CM10 my battery life has reduced to 10-12hours with zero use. There are no abnormal wakelocks and the phone is in deep sleep for almost 90% of the time. Disabling Google Now related stuff improves it to around 18 hours with zero use. If I use the phone the battery goes dead in 1.5-2 hours.

I migrated from an iPhone 4 but the battery life on this thing is such a joke it's not even funny. I used to get 6 hours of continuous use, 2-3 hours of heavy duty gaming at maximum CPU & GPU, and the phone used to last something like 2 months without use not 12 hours; and that's with everything set to auto-sync or auto-update wherever applicable.
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Old October 9th, 2012, 08:36 AM   #53 (permalink)
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After installing CM10 my battery life has reduced to 10-12hours with zero use. There are no abnormal wakelocks and the phone is in deep sleep for almost 90% of the time. Disabling Google Now related stuff improves it to around 18 hours with zero use. If I use the phone the battery goes dead in 1.5-2 hours.

I migrated from an iPhone 4 but the battery life on this thing is such a joke it's not even funny. I used to get 6 hours of continuous use, 2-3 hours of heavy duty gaming at maximum CPU & GPU, and the phone used to last something like 2 months without use not 12 hours; and that's with everything set to auto-sync or auto-update wherever applicable.
Might I suggest installing another ROM or even stock Jelly Bean?

If nothing else changed, I'd try another ROM.
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Old October 9th, 2012, 09:24 AM   #54 (permalink)
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Might I suggest installing another ROM or even stock Jelly Bean?

If nothing else changed, I'd try another ROM.
If that doesn't even help, try a Google Factory Image flash to restore to bone stock to see if that returns you to normal. If you want even better life, I suggest trying leankernel or franco.Kernel.
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Old October 9th, 2012, 10:45 AM   #55 (permalink)
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I'm just skimming this, looking for related info, so forgive me if this was answered above. I note the screen shots above show a lot of battery use by media server. Was the phone used for things such as playing music which would account for this? If not, it might be the source of the battery reduction.

Try one of two things--either get rid of all music files temporarily and/or check all the music files. I found this made a big difference. Before placing music files back on I ran a free program someone else recommended--MP3 Checker. It claims that several of the files were defective (although they played fine as far as I could tell). Check songs, ringtones, etc. After getting rid of all of the ones marked defective, media server spent far less time on, and battery time was improved. I believe it spends lots of extra time on defective files. Even if not all the files were really defective, I am willing to get rid of a handful of songs if it means better performance.
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Old October 11th, 2012, 01:32 PM   #56 (permalink)
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I reflashed a ICS based rom finally and couldn't be happier. Nice and smooth, fast, and great battery life.
Is there a step by step process to do this (I have stock vzw)?

After JB by battery life is TERRIBLE!!!!!! Like others my percentage of screen usage is killing my battery!!

Before JB I could go ~24 hours before charging, now I can't make it 8 hours before charging. What is the problem with JB causing this? Are there revised updates on the horizon to fix this???

Looks like the Galaxy Note 2 is in my future!
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Old October 11th, 2012, 01:59 PM   #57 (permalink)
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Is there a step by step process to do this (I have stock vzw)?

After JB by battery life is TERRIBLE!!!!!! Like others my percentage of screen usage is killing my battery!!

Before JB I could go ~24 hours before charging, now I can't make it 8 hours before charging. What is the problem with JB causing this? Are there revised updates on the horizon to fix this???

Looks like the Galaxy Note 2 is in my future!
Follow my video here to completely reflash your phone, and read carefully my warnings in the description.

How to Restore to Stock/Flash a Google Factory Image - Samsung Galaxy Nexus GSM Unlocked - YouTube

If you want ICS, get the "toro" build for it here if you are on a Verizon handset (mysid toro IMM76K Android 4.0.4): https://developers.google.com/android/nexus/images
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Old October 11th, 2012, 03:45 PM   #58 (permalink)
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Is there a step by step process to do this (I have stock vzw)?

After JB by battery life is TERRIBLE!!!!!! Like others my percentage of screen usage is killing my battery!!

Before JB I could go ~24 hours before charging, now I can't make it 8 hours before charging. What is the problem with JB causing this? Are there revised updates on the horizon to fix this???

Looks like the Galaxy Note 2 is in my future!
Have you posted your battery screenshots anywhere for people to look at? If your screen usage is killing your battery I don't see how that is JB related...
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Old October 11th, 2012, 04:11 PM   #59 (permalink)
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Fixed my battery issue. Was losing 50% overnight doing nothing whereas before JB I would lose maybe 6-8% overnight.

Realized that when I went to JB, my backup was set. Also, in location settings, I turned off allow anonymous data.

Just those 2 things by itself fixed my battery issue.
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Old October 11th, 2012, 04:34 PM   #60 (permalink)
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Have you posted your battery screenshots anywhere for people to look at? If your screen usage is killing your battery I don't see how that is JB related...
I have almost the identical screen % usage as others have posted earlier. I can't see how there would be a question of JB being the problem when the next day after updating my battery life has gone down the toilet!!!

The point I'm try to make is with all variables similar, before JB battery life awesome & after JB its been HIDEOUS!!!
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Old October 11th, 2012, 07:43 PM   #61 (permalink)
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I have almost the identical screen % usage as others have posted earlier. I can't see how there would be a question of JB being the problem when the next day after updating my battery life has gone down the toilet!!!

The point I'm try to make is with all variables similar, before JB battery life awesome & after JB its been HIDEOUS!!!
Because screen % or any other % is irrelevant. What matters is actual screen on time and awake time for different processes. You can't simply say "my screen on % is the same as joe's and my battery is dying". What is your brightness set at? How many minutes of screen on time? How many hours unplugged? How much streaming, how much talk time? Wifi, 4G, 3G? Are you seeing a lot of awake time on the processor that doesn't correspond to screen on time? This is what the graphs will show.

Also, its not as simple as saying JB is the problem. Most people have come to realize that its not JB its often times Google Now.... or as val88 posted, something completely unrelated.

If you want to solve the problem, people are here to help. It seems like you just want to blame JB. I saw no difference between ICS and JB when I disabled Google Now. I chose to enable certain parts of it and the battery life suffers, but that's a choice I made.
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Old October 11th, 2012, 10:26 PM   #62 (permalink)
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I turned off Google now the second I finished the update. All other variables haven't changed. There is no other reasonable conclusion unless JB has yet another energy consuming program running. One other thing is the upper half of my device always feels warm unlike pre JB.
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Old October 11th, 2012, 11:25 PM   #63 (permalink)
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I turned off Google now the second I finished the update. All other variables haven't changed. There is no other reasonable conclusion unless JB has yet another energy consuming program running. One other thing is the upper half of my device always feels warm unlike pre JB.
what does betterybatterystats show?
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Old October 12th, 2012, 12:08 AM   #64 (permalink)
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[QUOTE=Zeinzu;5001396]Mmmm no it doesn't.

[IMG]http://

This is pretty much my battery profile
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Old October 12th, 2012, 08:42 AM   #65 (permalink)
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Yeah, most people's look similar, but the details are what counts. Like I said, just seeing the % tells you almost nothing. 50% could mean 4hrs of screen time or 2hrs. It also doesn't show signal strength during use or any number of other factors which influence battery use. If you post shots of your own percentage screen, a "screen on time" screen, & the graph screen it would be very helpful
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Old October 12th, 2012, 10:55 PM   #66 (permalink)
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Screenshot_2012-10-12-22-41-34.png

Screenshot_2012-10-12-22-42-13.png

Here are some screen shots from today.

I can't figure out why JB is causing my battery to drop like a rock! I wish I took screen shots pre JB to compare because I never had battery issues espicially running the Sedio extended battery.
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Old October 13th, 2012, 07:58 AM   #67 (permalink)
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Wow. Your phone is constantly waking up. That's your problem. Something or some things are waking the processor repeatedly. Could be syncs or exchange or any number of things. What do you sync and how often is exchange checking your email?

And app like better battery stats will help to identify the cause. Its $ on the market but available free for xda-forums members.

Your phone should really only be awake when the screen is on (like below) with the exception of any background processes you deem necessary. I only sync browser, contacts, calendar and gmail. I use gtalk as well. My non gmail email syncs every 30min. I dont sync facebook, google+ or twitter.

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Old October 13th, 2012, 08:29 PM   #68 (permalink)
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What did they do with JB to cause this? I havent changed anything before JB or after JB except turn off google now.

I have email set to check manually.

I just checked my accounts and google currents, drive, play magazines, & plus were set to sync and twitter. I never had any of those programs setup to sync before. The JB update must have turned things on by default. I wounder what else has been turned on without my knowledge.....WT#!!!

I turned all the sync options off so we will see what tomorrow brings.
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Old October 13th, 2012, 11:13 PM   #69 (permalink)
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What did they do with JB to cause this? I havent changed anything before JB or after JB except turn off google now.

I have email set to check manually.

I just checked my accounts and google currents, drive, play magazines, & plus were set to sync and twitter. I never had any of those programs setup to sync before. The JB update must have turned things on by default. I wounder what else has been turned on without my knowledge.....WT#!!!

I turned all the sync options off so we will see what tomorrow brings.
+1 from other people recommending Better Battery Stats. Set it to partial wakelocks and look at the times there. That will give you a better idea as to what is keeping the phone awake so much, which is probably the issue for many people in this thread.
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Old October 14th, 2012, 08:42 AM   #70 (permalink)
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What did they do with JB to cause this? I havent changed anything before JB or after JB except turn off google now.

I have email set to check manually.

I just checked my accounts and google currents, drive, play magazines, & plus were set to sync and twitter. I never had any of those programs setup to sync before. The JB update must have turned things on by default. I wounder what else has been turned on without my knowledge.....WT#!!!

I turned all the sync options off so we will see what tomorrow brings.
I bet you a million space bucks that it brings back normal battery life.

My guess is the account sync changes in jb and the addition of Google now had the defaults set to sync again.

I'm thinking this will solve your problems and you'll be pleased with jb finally.
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Old October 14th, 2012, 06:39 PM   #71 (permalink)
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Sadly everything I turned off hasn't helped a bit! My phone still remains awake all the time. I think I'll have to reload ICS. :-(
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Old October 15th, 2012, 07:23 AM   #72 (permalink)
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I'll find the link to better battery stats. You can use that to find the root of your problem. I'd hate to see you go back to ICS.
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Old October 15th, 2012, 08:58 PM   #73 (permalink)
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I'll find the link to better battery stats. You can use that to find the root of your problem. I'd hate to see you go back to ICS.
I just purchased Better Battery Stats from the play store, now I have to figure out how to use the program.
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Old October 15th, 2012, 09:01 PM   #74 (permalink)
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I just purchased Better Battery Stats from the play store, now I have to figure out how to use the program.
Charge the phone, unplug it, then let the phone run for an hour or two and post the Partial Wakelocks on Since Unplugged screenie here.
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Old October 15th, 2012, 09:55 PM   #75 (permalink)
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even better, charge to 100% then use the phone for a whole day or at least until you get down to 50%. The more data the better.
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Old October 16th, 2012, 11:09 AM   #76 (permalink)
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Here are the screen shots. Phone was charged to 100% then unpluged to sit untouched all night. Battery drained down to 14% during this time.
Attached Images
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Old October 16th, 2012, 01:56 PM   #77 (permalink)
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Here are the screen shots. Phone was charged to 100% then unpluged to sit untouched all night. Battery drained down to 14% during this time.
Yeah looks like the stock Email client is eating battery. I've seen this before; anyone know any tips on reducing its wakelock time? Also, that 4G symbol worries me. Don't keep LTE on all the time, that is probably one of your killers.
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Old October 16th, 2012, 08:02 PM   #78 (permalink)
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Yup. Exchange is killing it. There are a lot of posts about exchange causing problems. Unfortunately, I don't use exchange (or fortunately for me I guess) so I can't help.... but I know I've seen plenty of people with exchange issues.
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Old October 16th, 2012, 10:50 PM   #79 (permalink)
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Gmail on the other hand, on a heavy day, uses 1% or less of my wakelock time by comparison. I just had a 22 hour cycle also where I was on HSPA+ the vast majority of the time (some WiFi APs actually hurt my battery a lot more than using mobile data) and then at night I disabled data (had a drain of about 0.3% per hour according to BBS also during that time). However I'm willing to bet that maguro gets way better battery life than toro considering the lack of an LTE radio. HSPA+ is insanely efficient I guess...22 hours, 2 hours 17 mins screen time, ~10% left at that point. Awake time was somewhere around 30 mins total over the 22 hour stretch, and I'm a moderate to heavy user during the day, all on the stock 1750 mAh battery.
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Old October 16th, 2012, 11:13 PM   #80 (permalink)
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I'm curious why everything was great pre JB and now post JB I can't even make it through the day on a full charge???

I haven't made any changes so why did JB cause this issue?

How do you turn the exchange off or disable it? I thought I turned it off.
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Old October 17th, 2012, 07:32 AM   #81 (permalink)
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I found this thread last week after getting sick of my poor battery life. Only got the phone the week JB came out so unable to compare to before. I did what most seemed to be recommending and turned off Google Now and wow what a difference both in battery life and also in background data use by the OS.
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Old October 17th, 2012, 10:57 AM   #82 (permalink)
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I'm curious why everything was great pre JB and now post JB I can't even make it through the day on a full charge???

I haven't made any changes so why did JB cause this issue?

How do you turn the exchange off or disable it? I thought I turned it off.
Your BBS screen shot seems to indicate you got some location service going on in google map. Are you sure you unchecked things like latitude, location history under google map setting?
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Old October 17th, 2012, 12:15 PM   #83 (permalink)
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I'm curious why everything was great pre JB and now post JB I can't even make it through the day on a full charge???

I haven't made any changes so why did JB cause this issue?

How do you turn the exchange off or disable it? I thought I turned it off.
I've seen several people report that deleting the exchange email, rebooting, and then adding the exchange email back resolved their problems.

Issue 37437 - android - Exchange Service High CPU Usage, Battery Drain since Jelly Bean 4.1.1 Upgrade - Android - An Open Handset Alliance Project - Google Project Hosting
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Old October 17th, 2012, 12:32 PM   #84 (permalink)
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I noticed someone said they had an extended battery, depending on what extended battery you have the battery could of taken a turn for the worse, if this is true, try using the original battery the phone came with.

I know with mild/moderate usage out of my extended battery (3800mAh) i get about 2 days, with the regular battery (1800mAh) i get about a day give or take a couple hours, usually more on the 14-15hours side.

Hope this helps
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Old October 17th, 2012, 08:47 PM   #85 (permalink)
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I went to settings > apps > all > exchange services cleared everything, force stop and disabled this app. It looks like battery life is much better and will see how it holds up the rest of the week.

Thanks to all for the help! I was extremely close to loading ICS again.
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Old October 19th, 2012, 06:59 PM   #86 (permalink)
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My batter life is back to pre JB!!!!

Thanks to all for helping out :-)
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Old October 19th, 2012, 10:06 PM   #87 (permalink)
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Glad you stuck it out.....
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Old October 20th, 2012, 03:29 PM   #88 (permalink)
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Round of applause for everyone here, THIS is why this forum freaking rocks!!!! I think I need a group hug now
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Old October 20th, 2012, 06:06 PM   #89 (permalink)
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Better Battery Stats for the win. That program is incredibly, incredibly useful. If only Android had those kinds of metrics in a much more user-friendly way on a preinstalled app as part of a gapps package or something...
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Old October 20th, 2012, 08:53 PM   #90 (permalink)
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In my case, it was Google Now. Stopped it and the battery sucking stopped. Went back to ICS usage.
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Old October 20th, 2012, 09:28 PM   #91 (permalink)
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In my case, it was Google Now. Stopped it and the battery sucking stopped. Went back to ICS usage.
Was it using your NetworkLocationLocator all the time? I always had that issue whenever I had Google's location services enabled, so I just decided to disable them until I need them. Still I see GoogleQuickSearchBox sometimes creep up a bit in BBS.
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Old October 22nd, 2012, 05:28 PM   #92 (permalink)
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I have had to turn my data completely off just to make it through the work day after the OTA.
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Old October 22nd, 2012, 06:13 PM   #93 (permalink)
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Go through all of the suggestions made in this thread to help you identify the cause. Post battery screenshots and stats.
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Old October 23rd, 2012, 10:31 AM   #94 (permalink)
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I have had to turn my data completely off just to make it through the work day after the OTA.
That's definitely a wakelock issue. I can leave my phone on EDGE data overnight and i drop 0.4% per hour, confirmed via BBS.
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Old October 23rd, 2012, 10:57 PM   #95 (permalink)
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It seems like my battery is even better with JB since everything got fixed. Im at 35% after 1 day 9 hours & 41 minutes!
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Old October 23rd, 2012, 10:59 PM   #96 (permalink)
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It seems like my battery is even better with JB since everything got fixed. Im at 35% after 1 day 9 hours & 41 minutes!
Holy crap, what is your screen time?
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Old October 24th, 2012, 12:19 AM   #97 (permalink)
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My battery problem appears to be directly linked to whether I am on WiFi or 3G/4G.

If I'm on WiFi, my battery is fine. I tend to lose about 2.5% an hour. When I am on 3G, I lose 7% per hour.

This is almost completely idle time. For a full day, I ran my on an either 3G or WiFi, and I purposely avoided turning the screen on as much as I could. The phone was either on my desk, or in my pocket.



Is this considered normal behavior for being on 3G vs WiFi?
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Old October 24th, 2012, 12:22 AM   #98 (permalink)
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Quote:
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My battery problem appears to be directly linked to whether I am on WiFi or 3G/4G.

If I'm on WiFi, my battery is fine. I tend to lose about 2.5% an hour. When I am on 3G, I lose 7% per hour.

This is almost completely idle time. For a full day, I ran my on an either 3G or WiFi, and I purposely avoided turning the screen on as much as I could. The phone was either on my desk, or in my pocket.



Is this considered normal behavior for being on 3G vs WiFi?
Wow that's awful...toro really sucks down battery on CDMA it seems. You probably wouldn't believe this, but on WiFi my maguro loses about that same amount of battery on idle, but on HSPA+ idle I only lose about 1-1.5% per hour. 2G EDGE is around 0.5%/hr, and all data off is around 0.3%/hr. hopefully some friends who have toro will respond. Stock 1750 mAh.
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Old October 24th, 2012, 12:33 AM   #99 (permalink)
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Quote:
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Wow that's awful...toro really sucks down battery on CDMA it seems. You probably wouldn't believe this, but on WiFi my maguro loses about that same amount of battery on idle, but on HSPA+ idle I only lose about 1-1.5% per hour. 2G EDGE is around 0.5%/hr, and all data off is around 0.3%/hr. hopefully some friends who have toro will respond. Stock 1750 mAh.
Sorry, but what's "toro"?
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Old October 24th, 2012, 08:56 AM   #100 (permalink)
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Quote:
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Sorry, but what's "toro"?
"toro", as evidenced on Google's Factory Image website for Nexus devices, is the Verizon Galaxy Nexus. It's just what us GN (Galaxy Nexus) fans call the Verizon version. "maguro" is the unlocked GSM model, and mainly the radios are different as well as a lack of a SIM slot on "toro". So far it seems "maguro" (my phone type) gets much better battery life...so I have to say GSM for the win.
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