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When my phone is fully charged or has 70 or 60% remaining battery it seems to drain as normal, around 2-5% over a 10 hour or so period...
However, I've noticed once the battery decreases below 50% it drains FAST, why?
Anyone else noticed this? Test it for yourselves, monitor the TIME it takes to decrease from 100 to 50% and then from 50% to 0.
Yesterday I forgot my phone in the car whilst going to work. It was turned on however it was sitting all day in the car.
Once I returned from work I was shocked to find the phone would not turn on.
At first I thought there was a problem or some kind of fault. Once I plugged in the charger it started to charge, the battery cut and the phone automatically turned off!
I remember the phone had around 48% battery remaining, no wifi or 3g or data turned on. It was simply idling...
So the question is HOW can the battery drain from 48% to 0% over a 10 hour period without being used???
Should my battery of been ANYTHING over 50% it would only lose a few percent...
Same thing for me. (Samsung Galaxy Note N7000 - stock Android 2.3.6)
Battery slowly decreases from 100% to ~50% and then ~2x faster.
I charged the note on my computer and then switched to the charger (at ~60% of charge).
I'm no expert of battery charging etc. but just remembered my iPhone 3GS discharging faster when charged on the computer than with the charger.
If it's the same for the note, some cells could discharge faster because charged on the computer.
Can someone confirm this (or not) ?
How did you charge your phone ?
boubou2k said:
Same thing for me. (Samsung Galaxy Note N7000 - stock Android 2.3.6)
Battery slowly decreases from 100% to ~50% and then ~2x faster.
I charged the note on my computer and then switched to the charger (at ~60% of charge).
I'm no expert of battery charging etc. but just remembered my iPhone 3GS discharging faster when charged on the computer than with the charger.
If it's the same for the note, some cells could discharge faster because charged on the computer.
Can someone confirm this (or not) ?
How did you charge your phone ?
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Click to collapse
Same thing happnd with me, and charging my phone thru electric charger..
So it seems this behaviour happens to several other Note users, why?
It's a problem knowing that having around 50% left in your battery will struggle to make it through the day with little to no use...
Have you people set the wifi to turn of while the screen is off? This is unnoticeable in the daily use, but increase the batterytime massively. The setting for this is hidden, you have to push menubutton while in the wifi-settings.
Here I thought I was only imagining things about the battery life dropping faster once it has reached 49% or less.
EarlZ said:
Here I thought I was only imagining things about the battery life dropping faster once it has reached 49% or less.
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Haha, nice to know I'm not the ONLY one facing this bug...
I can only hope Ice Cream Sandwich solves this battery drain issue.
Hmm, i think i have the same problem, but i'm not sure. Will get back to this thread when i've investigated a little bit.
This may be a typical samsung issue.
I remember when i had the spica , the battery percentage lining in kernel was totally wrong. I think its done on purpose so you would feel like you have more battery life. 75 % of the battery drains slow. And the rest 25 super fast. Can be fixed within kernel.
Sent from my LG-P990 using Tapatalk
I believe its just a placebo effect. Battery usage always depends on so many factors its a pain to even consider starting looking for the issue.
Being on stock KK5 not rooted, i cannot report the same. I only see "fast battery drain" at the last 4-5%. If you feel its an issue, could you post the firmware version you are on and the battery stats graph just for reference?
Placebo or not its something I can definitely feel on my Galaxy Note.
EarlZ said:
Placebo or not its something I can definitely feel on my Galaxy Note.
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Click to collapse
When you get the chance, could you post the battery stats graph please? what we should see is a (lets say) 30 degrees angle and at about halfway it gets steeper.
I know its quite hard to demonstrate the issue, but if you lets say use wifi to browse the first 50% in text only sites and then visit youtube for the last 50%, it won't help the test.
A nice way to test it would be to charge it to 100%, then load up a long movie and repeat playing it till the battery is 2-3%. Then post the results.
roxxy said:
Have you people set the wifi to turn of while the screen is off? This is unnoticeable in the daily use, but increase the batterytime massively. The setting for this is hidden, you have to push menubutton while in the wifi-settings.
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When the Wifi is disconnected, the 3G scanning will get on. Isn't that defeating the purpose?
Sent from my GT-N7000 using Tapatalk
Hey there!
I would suggest to load the battery 100%, plug it out, go into recovery and wipe battery stats.
I have to admit that I don´t know exactly what this workaround does, but I read about it in another forum...and it worked for me, my battery status is much more accurate now!
JulyDerek said:
When the Wifi is disconnected, the 3G scanning will get on. Isn't that defeating the purpose?
Sent from my GT-N7000 using Tapatalk
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Click to collapse
Wifi will continue to scan for wlans near it every second or so
Sent from my GT-N7000 using Tapatalk
I'm back. I've had the Diagnosis app running for the past hour, and i got some interesting results.
---Wiping battery stats does not help---, a full charge automatically causes battery stats reset.
I full charged mine with the electric charger after fully discharging it without turning it on.
This time i didn't notice any change in discharge speed between 100%-50% and 50%-0%.
Last time I charged the phone it was not fully discharged. Charged it from 30% to 50% then 50% to 75% on the computer, and 75% to 100% using electric charger.
It's just a supposition, but maybe doing several partial charges while using the phone makes the battery % information inaccurate (wrong battery stats?).
[Edit]In this case, wiping battery stats should show accurate battery %. [/Edit]
I had a similar problem, and I think it is to do with some incorrect scaling or measurement.
I was down to 28%, and it seemed to be draining fast even though I was not using it. I rebooted (I love how quick that is after my Arc was so slow). On restart it was at 17% ! The usage graph just did an instant drop.
I also had another occasion where it remained at 100% for 2 1/5 hours of use.
I assume some calibration issues caused the meter to read the battery wrong. I am turning off on the w/e overnight (when I do not need the alarm) to see if a slow (180 mA) charge while off will help. I may even get a decent alarm clock so I can turn the phone off at nights and charge. I spend too much time in the morning checking my email and reading news!
What is more consistent on mine is that when the battery drops to 9% or less the loss is like 1% per ~10-15% and this is with wifi/3g off, phone locked.
I'm back again. I've had some serious battery drain the last couple of days, but i noticed that Auto Sync was enabled. Once i deactivated it it got much better. Pulled the phone from the charger 9 hours ago and i'm at 90% battery left. I've sent some SMS, a few calls and that's about it, but it doesn't drain while it's in standby now, so i'm happy with it.
My Battery drained from 100% (it was fully charged, then I unplugged it and locked it) to 75% overnight.
What are some likely causes of this?
I noticed you have no signal. Constantly searching for a signal will drain the battery...
I've only had my N4 for a few days but the battery life has been good so far. A couple of brief observations...
1) On wifi only overnight (no SIM as I just got it and didn't have a micro yet) for 7+ hours. ZERO % drain...
2) On LTE (2-3 bars) for the past 3 hours. I left the phone and came back later. ZERO % drain...
Gmail is push, no GPS or BT. Only core apps running. I don't normally have anything in the back ground outside of lightflow...
Download GSam battery monitor
I noticed this also. I never had that much drain with my Galaxy Nexus.
I went out to lunch. Sent a few texts with google voice and looked up some random food articles on wiki for a few minutes. I was gone for 1-1.5 hours and now my battery is down to 47% from 75% this morning.
I'm going to download GSam and see what I get from there.
Edit: Installed GSam.
Attaching results from it.
the1onewolf said:
I went out to lunch. Sent a few texts with google voice and looked up some random food articles on wiki for a few minutes. I was gone for 1-1.5 hours and now my battery is down to 47% from 75% this morning.
I'm going to download GSam and see what I get from there.
Edit: Installed GSam.
Attaching results from it.
Click to expand...
Click to collapse
Charge it fully tonight, unplug it in the morning, and then post your GSam results tomorrow night after a day of usage.
Mine has started loosing charge overnight too.
It won't turn of wifi when asleep either. Since I activated Google Now.
Mine lost 5%in 4hours overnight. Nothing running apart from mail and now notifications.
the1onewolf said:
My Battery drained from 100% (it was fully charged, then I unplugged it and locked it) to 75% overnight.
What are some likely causes of this?
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Click to collapse
Your android OS usage is terribly high. That's my first suspect.
-Sent from my GS3 running CM10.-
My android OS usage is very high as well... sometimes higher than the screen. I'm gonna try turning off google now to see if that does anything but other than that I have no idea what would be causing that...
The screenshots show app usage as being 50%+.. It is probably a rogue app you have running in the background.
Sent from my Nexus 4 using Tapatalk 2
As I said before, I believe it's some Google apps, I deleted a bunch of Google apps I don't use. My phone sleeps like a baby now. Overnight it only went down 2%.
Sent from my Nexus 4
I had the same issue for a couple of days. I would wake up to my phone only having 65% charge and the device would be rather warm. In my situation, I found that the charger was faulty. I noticed at times it would cause the phone to flicker back and forth from charging to in use. Lucky for me, I don't sleep well at night and I found the issue after my phone had been plugged in for 5 hours in the middle of the night. With that said, I also noticed the charger would make a high pitched hum/hiss. I swapped my charger out for my old Iphone 4 charger and I haven't had an issue.
Nearly a full day's results.
I left my phone charging from night until morning. I unplugged my phone sometime around 10-11am and I stepped out around 12:30.
It's 5:52 pm now.
I was out from around 12:30 to around 5ish. At around 5 my phone had 50-56% battery left. My friend's Iphone 5 had 75% left. Aside from my friend using his iphone as a GPS to navigate in the car (around 20 minutes) - we had roughly the same phone usage (by my estimate of course), we were at same locations and both of us are on the same network.
To be frank, I don't understand why my friend had more battery life than I did considering he was using gps. I do feel like there is something draining my phone battery.
My screen light settings are on automatic.
I've attached GSam and my list of applications.
From about 5 to now (5:52):
After a bit of surfing, installing 1 application to list my apps, emailing that app list to myself screenshotting the relevant data and emailing those screenshots to myself over wifi. I'm now down to 39%
the1onewolf said:
I left my phone charging from night until morning. I unplugged my phone sometime around 10-11am and I stepped out around 12:30.
It's 5:52 pm now.
I was out from around 12:30 to around 5ish. At around 5 my phone had 50-56% battery left. My friend's Iphone 5 had 75% left. Aside from my friend using his iphone as a GPS to navigate in the car (around 20 minutes) - we had roughly the same phone usage (by my estimate of course), we were at same locations and both of us are on the same network.
To be frank, I don't understand why my friend had more battery life than I did considering he was using gps. I do feel like there is something draining my phone battery.
My screen light settings are on automatic.
I've attached GSam and my list of applications.
From about 5 to now (5:52):
After a bit of surfing, installing 1 application to list my apps, emailing that app list to myself screenshotting the relevant data and emailing those screenshots to myself over wifi. I'm now down to 39%
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Click to collapse
9:12
3 hours and 20 mins down the line.
I'm at 10% battery.
Is anyone experiencing weird issues with battery before recharging? i had 2 days phone on batt and 3hrs screen on. It was at 53 % before i decided to charge. I fully charged it and now im losing 10% every hour even with phone on idle. Its weird cause every other charge will last a long time.
podagee said:
Is anyone experiencing weird issues with battery before recharging? i had 2 days phone on batt and 3hrs screen on. It was at 53 % before i decided to charge. I fully charged it and now im losing 10% every hour even with phone on idle. Its weird cause every other charge will last a long time.
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Yeah, I'm still stock on this phone and I'm getting inconsistent battery life. I usually charge every night, so I'm running about 16-17 hours per day. Almost identical usage each day but one day I'll plug in with 45-50% remaining and the next it will be dead when i plug in. Very odd. I'm going to root this thing just so I can get rid of the bloat apps. Well, that may not be the only reason I root. I may be compelled to put some AOSP on this and see how it rocks it.
well i don`t really recommend to ROOT stock rom, it caused for me a battery drain ! also KitKat known for drain issue even on Pure android on Nexus 5. I don`t really know a fix but i`d give u some tip and it might help
1. Re-flash D80020c
2. After re-flash do a factory reset
3. Don`t root or mod your OS
4. Turn off Sync or Location Service (or set to battery saver mode)
i did those steps and i have 34 hour on battery:
3 Hour screen on time (and about 30-40 min gaming in this 3 hour)
Left about 49%
i hope i helped a little
Potential solutions:
Have a look in Settings > General > Battery and see what seems to be using the most power. You could have a problem app that’s using GPS or trying to update frequently. If you can identify the culprit then you can remove it.
There’s a slim chance you have a faulty handset. If adjusting your usage and tweaking settings doesn’t’ result in any improvement then take your LG G2 back to the retailer or carrier and get a replacement.
GenoMuch said:
Potential solutions:
Have a look in Settings > General > Battery and see what seems to be using the most power. You could have a problem app that’s using GPS or trying to update frequently. If you can identify the culprit then you can remove it.
There’s a slim chance you have a faulty handset. If adjusting your usage and tweaking settings doesn’t’ result in any improvement then take your LG G2 back to the retailer or carrier and get a replacement.
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I always have location turned off with all bloatware rwmoved. I honestly think you have to drain it to about 20% then charge. Cause i never have problems when i do that. Gonna try and drain it out again and recharge and see what happens then.
Are you having issues on KitKat out jellybean?
Sent from my LG-D801 using Tapatalk
Sfkn2 said:
Are you having issues on KitKat out jellybean?
Sent from my LG-D801 using Tapatalk
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Its kitkat,it says rooted d80020c in my signature. Well here is my latest results. Left it on overnight and was at 53% with data off. Checked it this morning and everything was back to normal again no battery drain or low estimated battery times.weird cause i charged it around this percentage. I think you have to take it down to at least 20 before charging will find out later today when i charge.
podagee said:
Its kitkat,it says rooted d80020c in my signature. Well here is my latest results. Left it on overnight and was at 53% with data off. Checked it this morning and everything was back to normal again no battery drain or low estimated battery times.weird cause i charged it around this percentage. I think you have to take it down to at least 20 before charging will find out later today when i charge.
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well i really not heard about Deep sleep drain but while idle it`s drains bit faster then JB, with jb i could get max 40 hour and about 6hr screen on time and + 10-15% battery while on KK i can get 42 hour but about 5 hr and 45 min screen on time with 0% battery it`s seems a bit problem for 4.4.2 i think Google will fix it and hopefull we`ll get new update from AT&T if this prob will fixed
P.S i saw that if battery at 100%, overnight it won`t fall to 99 but while battery is on below 100% it drains about 1-2 % overnight is that a known prob?
Prerevision said:
well i really not heard about Deep sleep drain but while idle it`s drains bit faster then JB, with jb i could get max 40 hour and about 6hr screen on time and + 10-15% battery while on KK i can get 42 hour but about 5 hr and 45 min screen on time with 0% battery it`s seems a bit problem for 4.4.2 i think Google will fix it and hopefull we`ll get new update from AT&T if this prob will fixed
P.S i saw that if battery at 100%, overnight it won`t fall to 99 but while battery is on below 100% it drains about 1-2 % overnight is that a known prob?
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1-2% overnight seems pretty good. Im sure thats normal.
podagee said:
1-2% overnight seems pretty good. Im sure thats normal.
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Click to collapse
2% overnight is pretty good, given that it's on WIFI I'm assuming?
I lost 25% overnight last night when I was off WIFI, so I factory resetted mine.
Took it down to 20% and discharged and its fine. Im guessing its a bug,but, easy fix just take the battery down to 20% or lower before charging
Every since the update my battery seems to lose a percent every 5-10 minutes the screen is on.
What gives?? Tried a fresh install and everything.
livinin82 said:
Every since the update my battery seems to lose a percent every 5-10 minutes the screen is on.
What gives?? Tried a fresh install and everything.
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54% in the last 3 hours. This is noticeably different.
Have you looked into whats draining it? i.e. under battery settings or using better battery stats?
Bubba Fett said:
Have you looked into whats draining it? i.e. under battery settings or using better battery stats?
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Nothing specific. Just screen for the most part and a little bit of chrome. I deleted messenger, and Facebook. Everytime I turn my screen on...By the time I go to turn it off after whatever activity I notice a percent loss.
My battery life has never been what I would call "good", but after the update it has been even worse. Wifi and location off, no facebook at all and screen at auto brightness. The battery seems to lose about 10% an hour and I'm lucky if I get to see 3 hours of screen on time.
I'm getting roughly 0.6% an hour when idle with 10j
T-Mobile. Best ever was 8h SOT with a few percent left in 10d. I am on 10j now rooted. Battery life seems worse but really it's not. Used to get about an hour screen before drops to 99% but now about 20mins. Just seems to measure battery better. This rundown so far was at work in downtown and I was on 41st floor most of the day. I am home now where my LTE is pegged full blast and I could probably pull down at least 5 more hours of this charge depending what I do.
I know it's not a solution in the sense its not solving whatever software is draining the battery but there are aftermarket battery packs for the v20 already that will make the phone last longer.
Zero Lemon specifically makes an excellent aftermarket battery pack if you don't mind the bulk.
I am waiting for a middle man battery pack that's larger than the factory battery but not as massive as the zerolemon.
Sent from my LG-H918 using XDA-Developers Legacy app
The last two days I hardly used my phone and the battery was down to 18% at 1pm Sunday and down to 18% at 3pm today. Hardly even unlocked the screen today. I haven't installed any new apps. just updates. Anyone else having issues? Must be a bad app update. Usually my phone makes it to 1am before going to 18% on typical days where I'm not using my phone much.
Update: I just remembered the Verizon Security and Privacy app came on wanting me to let it run so i did. that must be why my battery is draining fast. i took it off the charger this morning and it was already at 87% in 30mins.