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Horrible battery

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Take a look I am running SC 2.4 and I had my data on and I went to 79 percent battery in a little over an hour mostly on standby just now I charged my phone to 100 percent and its at 90 while leaving wifi on and a phone call
Sent from my SCH-I500 using XDA App

EB01 has a bug in its sensor code, so turning off AutoRotate will help. It's still not a WHOLE lot better, but it's at least serviceable that way.
Hopefully, the rumors about the update/OTA were true, and we'll see an updated build (EB09 is sticking in my brain for some weird reason, but don't take that as anything real) that fixes the sensor code and anything else that's eating up battery.

Did you do all the flashing when at 100% battery? It's possibly your battery stats are just inaccurate.
Let the phone charge to 100%, then with the phone still plugged in, shut it down so you get JUST the charging screen, and let that go to 100%. Then, boot into CWM and delete battery stats, and then go back to the powered-off-charging-screen and let it go back to 100%, then boot back into your OS. Some people recommend draining the battery most all the way, then charging it back up, but I'm not sure if that's really necessary.
Also, apparently there's a GPS bug in EB01 which causes it not to sleep, which'll drain your battery fast as well (though I don't see the GPS icon on your screen). You might also have some battery hog in the background slaughtereing battey life (the battery use screen might be able to lend some help for that).

Try using an app called juice defender, I found it to help my battery a lot.

SC 2.4 hides the icon.
I was getting a wakelock from Android System earlier today, but that has finally resolved itself and my phone is sleeping now.

I am not a noon so I know about wiping batt stats and did that I have used juice defender before but I just don't see a whole reason that it should drain that quick
Sent from my SCH-I500 using XDA App

No issues with battery life AT ALL with EB01. In fact, the BEST battery life I've EVER gotten, even better than Adrynalyne's UV kernels (no offense bud)
Yesterday, I unplugged around 10, got off work work at 830, was home by about 930, and STILL had some 34% left, 11 hours later. I'VE NEVER been able to go that long on a single charge. And I leave auto-rotate on.
What REALLY helped me, was turning off the GPS when not in use. MAN....what a difference !!!!

[Q] Battery stuck on ?

My nook, even after charging completely, dissconnecting the power cord, and using it for hours after, always shows a ? for battery status. Under settings battery % always reads unknown.
Anyone experienced this problem? My nook is rooted (rotted?).
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Although I haven't read about the BatteryManager ever returning unknown,
I'd be interested to know what the battery/charging status says in UsbMode.
This app has a group that displays all the broadcasted info on the battery.
http://forum.xda-developers.com/showthread.php?p=25613941#post25613941

Solved
So, I let the thing sit for weeks. Too busy with school to send it back to b&n for a reaplcement. I finally decided to deal with it, I plugged it in and in a few minutes it said battery to low to charge. I had to wait 15 minutes. So i let it charge till full. Upon booting, and unplugging, battery registered 100 percent and decresed with normal use.
In other words, let it totally run out of battery (could take weeks) then plug it in and let it fully charge.
Worked for me

I would like to confirm the OP's results. My battery started doing the question mark thing out-of-the-blue, about a month ago. I tried unrooting, restoring to factory settings, I even tried older versions of the Nook software to see if that made any difference, and nothing. I tried to drain the battery, transferring files to and from the Nook over wifi, and even when I couldn't boot from low battery, as soon as I plugged it in I got question mark battery. Being in Canada, getting my Nook replaced is a huge pain, so I left it for about a month. Pulled it out today, just for the heck of it, and I got the Not enough battery to turn on screen (which was new, when the battery was in question mark mode it would always attempt to turn on, but fail silently as soon as power was removed). I left it plugged in for a few minutes, and lo and behold it booted up and displayed the charging animation on the battery icon. I charged it to full, and it seems to be as good as new.
So, for anybody else that has this issue, the fix seems to be to let it drain for a very long time, then recharge. Shortcuts don't work, and it isn't a hardware issue that needs replacement.

Overheat Damage from Charging?

Ok so I'm slightly panicking... I forgot to charge my phone 2 nights ago, so I went the next day from like 50% down to 4% maybe (awesome battery life coming from my Gnex!). Plugged it in to charge. Woke up 8 hours later and the phone was pretty warm, but fully charged. Well, I got in the car to go to work and the screen just went black when I tried to play some music and BT, then the phone rebooted. It was still kinda warm so I just turned it off for a half hour on the way to work. Left it sit on my desk all day (busy day) and start using it this evening. So far the phone has rebooted itself twice now on its own. I cleared cache and dalvik thinking it'd help after the first reboot. Is it possible somehow the full charge up and heat maybe broke something? My verizon dev edition is only a few weeks old!

My phone has never gotten more then a gentle warmth to it while charging - are you using the stock power adapter? If it got hot enough to damage it from charging then you should have it replaced.
It also might just need a full reset, but that will erase all data.

All smartphones have PMIC(Power Management Integrated Circuit) on their boards to prevent the battery from being overcharged and having too much current running through such that the battery would feel anything more than mild under the most stressful loads. If a phone(our Moto X) has Qualcomm's Quick Charge 1.0 and is pulling the full 1.1A from a battery at 20%, then the battery is going to feel warm as the current-draw is at its highest from 20% to 80%. Here's a line-graph comparing charge times to illustrate the point where Quick Charge 2.0 was being graphed.
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Source
With regard to the OP's situation: I have no idea without a logcat file to say for sure.

[Q] Sudden battery life change

Hello,
I've experienced a sudden change in battery performance.
What used to take around 50% of battery now takes around 85%.
It happened recently, around the same time I started working at a new workplace. The reception is horrible there, maybe that's the issue. However during the weekends, it is around the same.
I was on 4.4.2 stock when it happened and since then I've flashed it again once. I've also tried a couple of different radios (and enabled LTE) and I've always had franco kernel.
Brightness was always on Auto (which I shall turn off to experiment battery life) and wifi is selected to be off when the phone is off.
I have still a few more experiments to do, but I'm considering using warranty services. What do you guys think? It's clearly not as bad as some of the other battery issues I've seen on this forum, but it's quite the change for me. I bought this phone in July 2013.
Here is an example battery usage graph. Charging finished around 1 AM and left it unplugged over night. In the morning (~7 hours) the percentage was at 75%. (5% / hr) Throughout the day, I have used it for text messaging only and by 6 pm, it's at around 13%.
Thanks for taking the time to read my long post.
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You can check what drains battery with BetterBatteryStats. Google it and you'll find.

Thanks for replying.
I have tried that before an OS reset although I couldn't make much out of it. One main thing I noticed was a certain kernel wakelock which, after I googled, was responsible for LTE connectivity. Although this makes sense, I had good battery life even with the LTE chip being used (& auto brightness / wifi always on) prior to this battery incident. By good battery life, I mean 50-60% used by the end of the day

With new battery, still not working

My Nexus 6P already needed a change of battery for a lot of use (I was driving Uber), the device reached the point where it could only be kept on for a few minutes connected to the charger, after a while it did not turn on again. I bought a new battery in Amazon brand Beltron and installed it. The first day, it came to load up to 96% and I used the device in the same percentage as for 40 minutes listening to music online until it started to go down, but normal. Once it dropped to 90% it started downloading faster and when it was about 70% it was downloaded as one point per second (exaggerated). After that, with only a few hours of use since I installed the battery, I have not managed to get the device to work again, because I leave it connected to the charger and it does not charge. I turn on the device but it immediately shuts down and is more curious than when I connect the charger, even though it had been turned off at 0%, it appears as if it had 25% but it is useless.
Things I have already done:
- Try another charger
- Remove batterystats.bin from TWRP

@Javichino Return the battery its probably a lemon. My first ordered battery from eBay had early shutdown issues. Luckily on eBay vendors value there ratings so they immediately sent a replacement. Been using that battery 5 months now working great zero issues. On Amazon you get a couple months to return so hopefully your in that time period.

Something abnormal happened this morning, when I turned on the device, without being connected to the electric current, it indicated a 35% charge which was reduced to 1% in 30 seconds. However, being at 1% was on for about 10 minutes until it finally went out.
I've been doing this several times, every time I turn it on, it appears loaded and drops to 1% in seconds ...
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Your wasting time the battery is defective. Can you send it back for a replacement?