Note 7 Battery problem!! - Note 7 Questions & Answers

Anyone experience this problem? Battery went from 50%+ to zero instantly and shut off?

If you just got the phone, chalk it up to a calibration issue. Otherwise, take it as a possible indication you have one of the rare explody batteries.
Sent from my SM-N930T using Tapatalk

First few runs will always be poor. My first run was absolute garbage, but now after using it for a month, its still garbage... (jk lol)
Give it time, and keep an eye on it going into deepsleep / using unecessary cpu freq's with GSAM of Cpu Spy.

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Horrible battery life

My phone's battery only lasts 6 hours. When I get to school (10 minutes away), I'm already at 92%, even if I don't touch my phone at all. By the end of the day it's dead.
This is terrible!
I use it mostly for web browsing, some games (nothing heavier than Angry Birds), some photos.
My old iPhone 3G was able to last for a day, even with WiFi, GPS and Bluetooth on, at maximum brightness.
Is there anything that could help me with this?
I tried calibration but that didn't help a bit.
I'm running Leedroid 3.0.5 and I have S-OFF.
Install current widget and monitor your screen of mA usage. If it's significantly higher than 4 to 10 mA you have sleep issues. If not there is nor much you can do.
Sent from my HTC Desire using XDA Premium App
turn off always on for mobile data?
AFAIK my frenz who use iPhone battery last pretty much at similar time doing similar task...
Sorry, I need to have data on.
TheGhost1233 said:
Install current widget and monitor your screen of mA usage. If it's significantly higher than 4 to 10 mA you have sleep issues. If not there is nor much you can do.
Sent from my HTC Desire using XDA Premium App
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right now it's at 339 mA. that is not right. So how do I fix sleep issues?
Okay, down to 4. I really have no idea.
231 now.
And now 180.
I have no idea how this phone works.
Is it possible to underclock? I don't really do anything that power hungry, except recording HD video, so I wouldn't mind underclocking to something like 800MHz
Try to calibrate your battery:
http://forum.xda-developers.com/showthread.php?t=755903
i think you've got some app or process that is draining your battery. your phone automatically downclocks the cpu when its idle. there must be something that is keeping it from sleeping. go into your settings and check on running services to see whats running in the background. i can usually last around 2 full days without charging, but i turn off mobile data most of the time because im always near a wireless connection. i mostly use the phone for texting and browsing and angry birds too. at idle your phone should be using <10 mA.
I already calibrated, and that didn't really help.
The only service. I can blame this on is Lookout antivirus. I uninstalled it, so I'll see if it works better.
Sent from my HTC Desire using XDA App

phone overheating and massive battery drain

My phone will overheat when im not even using it, that is i have it sleeping with no apps in the background and it will still overheat. the battery drains very quick at the moment its been 23 minutes on battery and the battery has already gone down by 20%. when i go to the battery use the android os seems to be using the most battery at 56%. I tried flashing to a custom rom from stock rom in hope that the issue would be fixed but still no luck. any ideas?
Search for BetterBatteryStats and how to use it to check for wakelocks.
I think you should take it back to customer service center, as it looks like hardware issue.
Sent from my HTC One X using xda app-developers app
If your cpus are locked at high frequencies, that may result in that behavior. Use cpu spy to see the used frequencies and times.
Sent from my HTC One X using Tapatalk 2

DISGUSTING battery life

Alright first of all, i want start off by saying that i LOVE this phone, both in terms of hardware and software, however, theres is a HUGE problem that i just can't get through and its the battery of this phone...
It is simply unbearable.
I have posted the screenshots. This screenshot is taken after 1 whole night of charging. In 5 hours or so time, I've use the music app for about 1 hour, talked on the phone for about 5-10min and sent about 10 text messages. I didn't do any web browsing/videos/gaming. I have also disabled LTE and turned my brightness to minimum with eco mode on. These small things drained my battery from 100% to less than 10% within 5 hours which i find to be completely unacceptable.
Last night, with me browsing the web on the bus for about an hour or so, it drained my battery from 85% to 3% by the time i got home...
I've looked at the battery life thread and it seems like im the only one experiencing this issue. Also not only does it drain SUPER fast, it takes a good 4 to 5 hours to recharge this thing. Which means it takes longer to charge than to use up even with minimal use...
Do I have a faulty phone and should I get it replaced???
Something's amiss. The only time that I've gotten less than 10 hours, is when I had my work email connection set up to "always connected" and wifi was turned on. Even then, I got 9+ hours of battery life.
Disabling lte is part of the problem. When the phone is in 3g, it uses fast dormancy which LG did not implement very well and it runs the CPU constantly. I encourage you to contact LG and your carrier and complain. don't let them tell you about background data or applications running the battery down. With the same apps running, this does not happen on lte. This can easily be verified by enabling debugging and then capturing a logcat from adb with lte both enabled and disabled. It will show fast dormancy trying to set network states every second. I spent a lot of time trying to get this issue recognized, but they kept saying that it had not been reported and was not a known issue. Let's make it a known issue so they will fix it.
How about actually showing us what you used instead of screen shots of %.... would be helpful...
Sent from my LG-E970 using xda premium
Have you considered that maybe you have a faulty unit.
Sent from my SGH-I897 using xda app-developers app
I'm also getting about 5ish hours on a charge. And, when I recharge at the office with the usb cord, it's a "trickle charge" that's so slow it's ridiculous.
mickeyasr said:
I'm also getting about 5ish hours on a charge. And, when I recharge at the office with the usb cord, it's a "trickle charge" that's so slow it's ridiculous.
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you definitely want to return this thing.
Don't know about you...but I let my phone die twice then fully charged it but my battery life is amazing
Sent from my LG-E970 using xda app-developers app
Yeah, I've been quite impressed with my battery life on this thing. I made it from 6:30am spent about 2 hours tweaking it and setting it up, then messed around with it through the day. By supper time I plugged it in and it was at 63%.
I don't have the phone, but right off the bat i'd say it was whatever was causing your mediaserver to go nuts. Either some media app, YouTube, gallery etc, wouldn't say its a faulty unit, just mediaserver gone rogue
And damn i want this phone...
Looks like a widget or live wallpaper is going crazy
Sent from my SAMSUNG-SGH-I897 using xda premium
Well, a little update to this thread, i've disabled every different kind of syncing possible and i've been able to pretty much double my battery life from before, which is a lot better but i still wouldn't consider this to be good battery life.
I've been reading many posts regarding battery life, and it seems like there is some issue within the software that prevents the phone from going into deep sleep which is causing the lack luster battery life. This issue is on both the optimus g and the nexus 4, so i hope the devs may look into this issue when they are building custom roms for these two devices!
waaw Optimus G
I just got my optimus yesterday and had a full charge this morning. Been using it for almost 12 hours pretty steady. Have 16% battery left. I would say my battery is pretty amazing.
Sent from my LG-LS970 using xda premium
Sent from my LG-LS970 using xda premium
Get a replacement that's what I did with my first one. I was getting 6-7 hours with light use.
Got a replacements and was able to get 19_14 hours battery.
Also today I left my cell at home and it was unplugged at 100% after 9 hours I came home and saw it at 95%.
Sent from my LG-LS970 using xda apdevelopers app
You definitely seem to have some weird issue's. My Optimus is great for battery life. My previous phone was an Xperia Arc and this has significantly better battery life without even running it in "eco mode". The only time I have noticed less then stellar battery life was when I had some app's running in the back ground that would keep refreshing/updating which kill's the battery.
Androids usage readings are inaccurate. Please consult this: http://forum.xda-developers.com/showthread.php?t=1179809
From what the picture shows I would guess its your 4G connection. A Hardware fault is improbable. And forget these things like "eco mode". Even if they underclock your cpu it won't give you a real benefit,
I've had great battery life on mine. Even when I've been geeking out on the device for several hours during the day.
Perhaps you are on the cusp of LTE coverage? If so, then the radio can kill your battery while looking for a signal.
Sent from my LG-E970
DraginMagik said:
I've had great battery life on mine. Even when I've been geeking out on the device for several hours during the day.
Perhaps you are on the cusp of LTE coverage? If so, then the radio can kill your battery while looking for a signal.
Sent from my LG-E970
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I also have amazing battery life IMO, coming from a Galaxy S. I have no LTE in this area so am using only HSPA. Using the phone with casual use, I can easily go a full 24 hours on a charge. With very very heavy use I can go from 8 am till around 11 PM. I am very happy with the battery life overall. I'm running on "eco mode" FWIW.

[Q] Wake up laf fix

Hello there,
I found a solution to the wake up lag, I tried everything before but nothing did the work. Its an app called wakelock, so far so good, batter drain is not that big, about 8% in 8 hours idle, I can live with that. I'm worried if there's a side effect to this? being the cpu constantly on, will this shorten its lifetime? Thanks.
Going from the name of the app and a quick peek, what it does is use a wakelock(!) to prevent the phone going to deep sleep. My guess is it will shorten battery life by around 20%, but I can't see how it should do any damage to the cpu.
Sent from my GT-N7100 using Tapatalk 2
It's not an amazing solution tbh, as it's keeping your CPU awake all the time. If the CPU doesn't enter deep sleep, there is no wake-up lag.
I don't imagine you'd immediately notice any major issues with it, but longer term nobody can really say - I don't think you will have a problem in a normal period of usage of the CPU such as a year or two. But at the end of the day, any time you change things like this, there's a risk, regardless of how small.

[Q] [q] Is this what a dying battery looks like?

I noticed when I was looking at battery stats (trying to figure out what's eating the battery; very little in the way of apps installed)
I bought the phone last week, but I bought it used on eBay. It came with the original box and the manufacture date is 6/30/12, so I figure this was someone's everyday device for 10 months.
The reason I ask is that sudden dip from 20 to 30%. And the other reason I ask is that I only get about 10 hours with 3 hours of screen-on time on a full charge. If the battery is just losing capacity, that's fine - I'll get a ZeroLemon 2300maH battery and I should get much better life. If the battery still has close to full capacity, then I'll get an extended-capacity battery. I just need some guidance as to whether or not it's crapping out so I have a better idea of what to buy.
Thanks!
Jump is weird. Could be the battery is flaky. But I would make effort to reseat it. I want to see what BetterBatteryStats says about that terrible wakelocking, though.
You can delete batterystats.bin from /data/system. Everyone says it does nothing. But I do it anyway. Because I can.
My stock battery usually gives me 7-8hrs of standby and 3hrs of screen time.
Zerolemon 2300mah gives me 20hrs of standby and usually 5hrs of screen time.
You can check in the accessories section in the zerolemon 2300mah that I've posted some of my results via screenshots.
About the dip, I'm not sure I've never noticed that on any of my batteries.
Sent from my SGH-T999 using xda app-developers app
Jump has been there consistently. Had the phone 4 days, and every day when it hits 30% it drops to 20%.
Installed Betterbatterystats and I'll see what's keeping it awake. It does seem to be awake an awful lot compared to my old Atrix (switched to T-Mobile a month or so ago, and just got the phone after I was switched for a bit), which got way better battery life.
10 hours with 3 hours of on screen time is just about average for the stock battery.
I would recommended getting the zero lemon 2300 mAh slim batteries if you're lucky enough to place an order for them. They only restock in small amounts and they disappear quick.
Sent from my SGH-T999 using xda premium
707BeastMode707 said:
10 hours with 3 hours of on screen time is just about average for the stock battery.
I would recommended getting the zero lemon 2300 mAh slim batteries if you're lucky enough to place an order for them. They only restock in small amounts and they disappear quick.
Sent from my SGH-T999 using xda premium
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Well that's good to know. They're in stock right now on Amazon so I'll pick up the 2-pack with the charger.
OK so far the phone has spent half its time unplugged staying awake, and about half of that is being caused by DeskSMS. I got a trial a long time back and decided not to bother because I didn't use it, and when my google account restored to the phone, it apparently got installed and I didn't notice. I've uninstalled that and we'll see what else happens. Very thankful for the BetterBatteryStats suggestion; I'd never heard of it.
Well the battery is lithium ion. With repeated charging the battery loses capacity. If the battery is the one that came with the phone, buy a new stock one for cheap off Amazon. That is if you use NFC and have a certain fitted case. If not, go for an extended battery by reviews on Amazon and XDA. My battery is from December and I haven't noticed any decrease yet. The temperature of which your phone runs and the temperature of the environment also effect battery life.
Sent from my SGH-T999 running Chihuahua v1 ROM
Great news, everyone. Desk Sms was the culprit all along. This is 3 hours of Netflix and then sleep over night. Just a couple wake locks that I can attribute to emails received overnight.
So out turns out the battery other than the weird drop, at least with the power saver on.
Thanks in particular for the Better Battery Stats suggestion. Without it I would have been majorly confused.
Sent from my SGH-T999 using xda premium
DeerSteak said:
Great news, everyone. Desk Sms was the culprit all along. This is 3 hours of Netflix and then sleep over night. Just a couple wake locks that I can attribute to emails received overnight.
So out turns out the battery other than the weird drop, at least with the power saver on.
Thanks in particular for the Better Battery Stats suggestion. Without it I would have been majorly confused.
Sent from my SGH-T999 using xda premium
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Glad you were able to get it all figured out. Wakelocks are VERY annoying. Search for kms.apk if Mediaserver is ever draining your battery in the future, it is a common battery draining problem as well.
If you're on TouchWiz using Power Saver, I'd recommend disabling it. It throttles your CPU in half. This may cause instability, or overheating problems or sometimes even battery drain ironically. I do however recommend, KT747 kernel with changing govs, and I/O scheduler and using Team Kernelizer tweaks. Try Eugene's CPUSleeper and it may help put DeskSMS to sleep for good. And how could I forget? Definitely try Greenify. It makes apps behave akin to iOS devices. Best of luck.
TheLastSidekick said:
Glad you were able to get it all figured out. Wakelocks are VERY annoying. Search for kms.apk if Mediaserver is ever draining your battery in the future, it is a common battery draining problem as well.
If you're on TouchWiz using Power Saver, I'd recommend disabling it. It throttles your CPU in half. This may cause instability, or overheating problems or sometimes even battery drain ironically. I do however recommend, KT747 kernel with changing govs, and I/O scheduler and using Team Kernelizer tweaks. Try Eugene's CPUSleeper and it may help put DeskSMS to sleep for good. And how could I forget? Definitely try Greenify. It makes apps behave akin to iOS devices. Best of luck.
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The problem with Greenify, in this case, is you can't hibernate apps that send notifications, or you will never get them.
The power saver doesn't bother me. Being in the notification area makes it easy to toggle and performance has been fine. Better Battery Stats says it gets up to 1 GHz Mac and that is plenty on the web or Facebook or Netflix.
I had assumed the media server popping up was due to Netflix streaming. It hasn't been back today since recharging. If it comes back I'll look more at disabling. Today battery life has been great. 12 hours with 2 hours of on time and at 45 percent. I definitely over reacted to the drop and it must have been Desk SMS which never should have been installed.
Sent from my SGH-T999 using xda premium
If anyone has any issue with their battery sprint corp stores have a tester takes about ten min. They won't have a problem doing it if you're nice, sprint or not. It will either end up excellent marginal or poor... they don't charge for the test.
tmobile s3 running wicked. best rom i've ever used

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