So last night my phone was at around 75% before heading to sleep, I woke up this morning to find, after turning it on (it was completely off) that it was at 10%. I did do an update several days ago, but I'm worried as my battery has been iffy lately. So my question is, has anyonr else experienced this and had it as an isolated issue that they didn't have to deal with again, or should I be worried about my battery? I've never seen anyone report this issue on an S7 before.
XDA won't let me post an image or link until I make 10 posts, so I can't post the graph, sorry. It just shows a giant gap for when it was off, and the line starting significantly lower than where it startrd before the graph.
thanks in advance
Must have water damage on your mother board ..due to which battery drain occurs ..in night mine only drains 1%
danysonu said:
Must have water damage on your mother board ..due to which battery drain occurs ..in night mine only drains 1%
Click to expand...
Click to collapse
I don't think it's water damage as I very rarely bring this thing around water. Also, it didn't happen last night, so that's good.
Put it down to the phone not fully powering off, and instead getting stuck in a SoD (Sleep of Death), used to happen with the ASUS Transformer a lot, looks like it's powered off, but it's still running and you end up with a dead battery the next day
*Detection* said:
Put it down to the phone not fully powering off, and instead getting stuck in a SoD (Sleep of Death), used to happen with the ASUS Transformer a lot, looks like it's powered off, but it's still running and you end up with a dead battery the next day
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Click to collapse
Interesting, does battery data not at all record during that point, as the graph suggests?
I should mention I was able to turn it on like normal in the morning.
Lalam24 said:
Interesting, does battery data not at all record during that point, as the graph suggests?
I should mention I was able to turn it on like normal in the morning.
Click to expand...
Click to collapse
It didn't with the Transformer, for all intents and purposes it thought it was off but was stuck in limbo, I think the CPU gets hammered during that time too as the battery would not drain almost fully by just leaving it on idle overnight
Being able to turn it on normally is different, but I guess it's a different device, I had to hold the power button of the Transformer to shut it off completely before powering back on if it hadn't 100% drained the battery, but generally it had (Both batteries, dock and tablet)
*Detection* said:
It didn't with the Transformer, for all intents and purposes it thought it was off but was stuck in limbo, I think the CPU gets hammered during that time too as the battery would not drain almost fully by just leaving it on idle overnight
Being able to turn it on normally is different, but I guess it's a different device, I had to hold the power button of the Transformer to shut it off completely before powering back on if it hadn't 100% drained the battery, but generally it had (Both batteries, dock and tablet)
Click to expand...
Click to collapse
Do I have any way of finding out if this was the cause other than assuming?
Lalam24 said:
Do I have any way of finding out if this was the cause other than assuming?
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Click to collapse
None that I know, if it was still in that state a logcat might help but chances are it is not in any state that would be logging anything tbh
Other possibility is a bad battery, but seems strange it would happen when the phone was off, but I guess anything is possible if the hardware is faulty
The gap in the battery stats graph is normal when you turn the phone off, as the graph is showing time scales, you leave it off for 8 hours there will be an 8 hour time gap, happens with mine when I turn it off too
*Detection* said:
None that I know, if it was still in that state a logcat might help but chances are it is not in any state that would be logging anything tbh
Other possibility is a bad battery, but seems strange it would happen when the phone was off, but I guess anything is possible if the hardware is faulty
The gap in the battery stats graph is normal when you turn the phone off, as the graph is showing time scales, you leave it off for 8 hours there will be an 8 hour time gap, happens with mine when I turn it off too
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Click to collapse
I know the gap is normal, just the gap with the huge difference in percentage from each sidr is what I'm talking about.
Anyway thanks for the suggestion, still curious to see if this ever happened to anyone else and they just didn't report it.
Lalam24 said:
I know the gap is normal, just the gap with the huge difference in percentage from each sidr is what I'm talking about.
Anyway thanks for the suggestion, still curious to see if this ever happened to anyone else and they just didn't report it.
Click to expand...
Click to collapse
Yea the huge % drop is definitely not normal, even left turned on with all radios enabled wouldn't do that, screen being on the whole night would be about that sort of drain I'd say, you can get 9+ hours SoT if you don't use the phone and just leave it on doing nothing but as it was turned off I can only think bad battery or SoD
Hope you find the cause, or it was a one off and behaves from now on
*Detection* said:
Yea the huge % drop is definitely not normal, even left turned on with all radios enabled wouldn't do that, screen being on the whole night would be about that sort of drain I'd say, you can get 9+ hours SoT if you don't use the phone and just leave it on doing nothing but as it was turned off I can only think bad battery or SoD
Hope you find the cause, or it was a one off and behaves from now on
Click to expand...
Click to collapse
This isn't entirely on topic but why would the battery graph ever start at a point that isn't 100%? That happened to me today after turning it on in the morning, and the totals only add up to the amount used below 48%. Someone said it's from restarting or turning the phone on and off, but I thought that just showed a gap in the graph.
Sorry for the sort of irrelevant question, you seem to know what you're talking about and I see no point in starting another topic for the question.
Lalam24 said:
This isn't entirely on topic but why would the battery graph ever start at a point that isn't 100%? That happened to me today after turning it on in the morning, and the totals only add up to the amount used below 48%. Someone said it's from restarting or turning the phone on and off, but I thought that just showed a gap in the graph.
Sorry for the sort of irrelevant question, you seem to know what you're talking about and I see no point in starting another topic for the question.
Click to expand...
Click to collapse
The battery graph would only show 100% if the battery was 100% full when you powered it on, so basically the Y axis (vertical) shows battery full %, the X axis (horizontal) shows a time scale since last charge, which is why you get the gap when you have the phone off for a while
The app usage % is confusing, it doesn't always add up to the % that is missing from a fully charged battery, rather what % of the charge used since it started using the battery this session / charge, so if the phone has been off for a while with say a 50% charge, then powered on, you might see the app usage starting fresh with only a few % per app which won't add up to the missing 50%, and also if you partially charge the phone for arguments sake to 75% from 50%, then remove the charger, that can also reset the app usage % as it shows the usage since being on battery power only
That said, the above doesn't always ring true, I've just had my phone on charge for 30 mins, now at 76%, I rebooted the phone and removed the charger and the app usage stayed the same, not sure what circumstances are needed to reset the app usage % but I've seen it happen after partial / full charges, and also having the phone off for a period of time
*Detection* said:
The battery graph would only show 100% if the battery was 100% full when you powered it on, so basically the Y axis (vertical) shows battery full %, the X axis (horizontal) shows a time scale since last charge, which is why you get the gap when you have the phone off for a while
The app usage % is confusing, it doesn't always add up to the % that is missing from a fully charged battery, rather what % of the charge used since it started using the battery this session / charge, so if the phone has been off for a while with say a 50% charge, then powered on, you might see the app usage starting fresh with only a few % per app which won't add up to the missing 50%, and also if you partially charge the phone for arguments sake to 75% from 50%, then remove the charger, that can also reset the app usage % as it shows the usage since being on battery power only
That said, the above doesn't always ring true, I've just had my phone on charge for 30 mins, now at 76%, I rebooted the phone and removed the charger and the app usage stayed the same, not sure what circumstances are needed to reset the app usage % but I've seen it happen after partial / full charges, and also having the phone off for a period of time
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Click to collapse
I was about to say I didn't have this thing plugged in at all last night until I got to the end.
Either way the gaps in the graph suggest you can see it at 100% on the graph regardless of whether or not it has 100% when you turned it on. That's actually almost always what I see, or rather, up until last night I don't recall ever seeing the graph not start at 100%. Then again with the other battery issues I may just be noticing more now.
So to clarify, you've seen the graph start fresh, from a percentage other than 100, after not having charged it, correct?
Lalam24 said:
I was about to say I didn't have this thing plugged in at all last night until I got to the end.
Either way the gaps in the graph suggest you can see it at 100% on the graph regardless of whether or not it has 100% when you turned it on. That's actually almost always what I see, or rather, up until last night I don't recall ever seeing the graph not start at 100%. Then again with the other battery issues I may just be noticing more now.
So to clarify, you've seen the graph start fresh, from a percentage other than 100, after not having charged it, correct?
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Click to collapse
No not the graph, the app usage % under the graph resets after charging / powering off for a time
The battery level graph will remain at the level the battery is at no matter what I do with it
It doesn't start at 100% unless the battery is 100%, which is the way it should be as that right side axis is battery % level, wouldn't make sense to have it start at 100% if it was only 50% charged so not sure what's happening with yours
*Detection* said:
No not the graph, the app usage % under the graph resets after charging / powering off for a time
The battery level graph will remain at the level the battery is at no matter what I do with it
It doesn't start at 100% unless the battery is 100%, which is the way it should be as that right side axis is battery % level, wouldn't make sense to have it start at 100% if it was only 50% charged so not sure what's happening with yours
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Click to collapse
For me it's always once I charge it to 100% completely, that's the point the graph starts at and remains that way until I recharge it to 100% again. For example, another member of my family's s7 edge's graph, about a week ago, lasted for about 80 hours while only being charged to 100% once, those 80 hours ago. So it was put on the charger several times throughout but never reset the graph at those points. Then once it was charged to 100% again, it reset the graph. So I'm not saying it's suggesting I'm at 100% when I'm at 50%, but rather that it gives me usage history, on the graph, from the last 100% almost all of the time, and just shows gaps when I turn it off.
So that's why I was confused. What does your graph start at right now, out of curiosity?
Lalam24 said:
For me it's always once I charge it to 100% completely, that's the point the graph starts at and remains that way until I recharge it to 100% again. For example, another member of my family's s7 edge's graph, about a week ago, lasted for about 80 hours while only being charged to 100% once, those 80 hours ago. So it was put on the charger several times throughout but never reset the graph at those points. Then once it was charged to 100% again, it reset the graph. So I'm not saying it's suggesting I'm at 100% when I'm at 50%, but rather that it gives me usage history, on the graph, from the last 100% almost all of the time, and just shows gaps when I turn it off.
So that's why I was confused. What does your graph start at right now, out of curiosity?
Click to expand...
Click to collapse
Starts at 100% because that's when I took it off charge last night
Yea I think I know what you mean, if you don't fully charge it'll continue the graph from whatever charge level it is at once you remove the charger, happens here too if I don't charge for long, but lets say from 10% > 70% and remove the charger and it'll reset the app usage % but the graph level will remain at whatever % the battery is unless I power off for a length of time, then it'll act like a new fresh charge as seen here (No charging ramp before the 100% level 12 hours ago)
{
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*Detection* said:
Starts at 100% because that's when I took it off charge last night
Yea I think I know what you mean, if you don't fully charge it'll continue the graph from whatever charge level it is at once you remove the charger, happens here too if I don't charge for long, but lets say from 10% > 70% and remove the charger and it'll reset the app usage % but the graph level will remain at whatever % the battery is unless I power off for a length of time, then it'll act like a new fresh charge as seen here (No charging ramp before the 100% level 12 hours ago)
Click to expand...
Click to collapse
The graph seems to randomly reset on its own sometimes when you restart/turn off and on the device every now and then, no charger needed, which is what happened to me the other night, and what apparently occassionally happens to someone on androidcentral. I guess my real question is what's the point of the set up, and is there a consistency to it we're not seeing?
*Detection* said:
Starts at 100% because that's when I took it off charge last night
Click to expand...
Click to collapse
Anyway, thank you for all of the help and answering all of my probably useless question
Related
My original device always seems to take forever to go below 100%, and I just got a new device that has the opposite issue - it never goes above 94%. So I did some further tests, tonight.
My 94% device goes down fairly steadily once unplugged. But, the device at 100% does not. Also, when the 100% device is drained and I recharge it, it still says it's charging when its at 100% - so what does this mean?
I think that the battery calibration is off, as we already assumed. So, my 94% device is really 100% and I suspect that it would survive beyond 0% as it probably still has 6% juice left in reality. And, in the case of the 100% device, it's probably mis-calibrated to 105 or 110% (or more?). Since the UI can't show you 105%, it just shows the max of 100% until it goes below 100% which can take some time. I also suspect that the device would cut out at 5% or 10% since it's actually drained completely.
So that's the reason, I think. As to the fix, I don't know. What's weird is that these two devices are so different in terms of how the battery status is calibrated.
How can this be fixed? Or "Recalibrated?
I'm letting one of them completely drain, to see what happens.
At least the 94% one gives me an idea on what the battery life is, since I can just tack on +6%. But the one stuck at 100% is a complete mystery - it could be 5% off, 10% or even more.
Also, these run on 2 cell batteries making 7.4V nominal. All the devices before are using single cell batteries at 3.7V nominal. So Android may have issues with that voltage difference.
roebeet said:
I'm letting one of them completely drain, to see what happens.
At least the 94% one gives me an idea on what the battery life is, since I can just tack on +6%. But the one stuck at 100% is a complete mystery - it could be 5% off, 10% or even more.
Click to expand...
Click to collapse
I had the 100% battery issue before and it took a long time for it to dip below 100% (so long that it seemed unreal). Later I decided to let it drain to zero before recharging it to full again. Since then the battery indicator seemed to behave normally and discharged at a normal rate when the tablet was in use.
Have you tried deleting /data/system/batterystats.bin to wipe battery status? Mine sits on 100% for ages so I'm trying this now.
roebeet said:
My original device always seems to take forever to go below 100%, and I just got a new device that has the opposite issue - it never goes above 94%. So I did some further tests, tonight.
My 94% device goes down fairly steadily once unplugged. But, the device at 100% does not. Also, when the 100% device is drained and I recharge it, it still says it's charging when its at 100% - so what does this mean?
I think that the battery calibration is off, as we already assumed. So, my 94% device is really 100% and I suspect that it would survive beyond 0% as it probably still has 6% juice left in reality. And, in the case of the 100% device, it's probably mis-calibrated to 105 or 110% (or more?). Since the UI can't show you 105%, it just shows the max of 100% until it goes below 100% which can take some time. I also suspect that the device would cut out at 5% or 10% since it's actually drained completely.
So that's the reason, I think. As to the fix, I don't know. What's weird is that these two devices are so different in terms of how the battery status is calibrated.
Click to expand...
Click to collapse
samepic said:
I had the 100% battery issue before and it took a long time for it to dip below 100% (so long that it seemed unreal). Later I decided to let it drain to zero before recharging it to full again. Since then the battery indicator seemed to behave normally and discharged at a normal rate when the tablet was in use.
Click to expand...
Click to collapse
I tried that once, by setting it to never shutoff and letting it go over night. The next morning I charged it to green plus 30m as someone suggested in the TnTL thread, but I still had the problem of the meter sticking at 100% for a long time.
Anyways, I installed 3.0.0(TnTL) on monday and decided to also use the CWM clear battery data option, and now it seems to be dropping more as expected, but I'm not entirely sure that I did it completely correctly as by the time that I did the clear battery data option it would've been below 100% charge since I did so AFTER running the update.zip... just have to wait and see now...
Battery Stays at 100% For Ages
My battery stayed at 100% for ages the first time I charged it. Then it dropped quickly and cut out around 50%. I recharged it and it seems to be behaving more normally now. It still seemed to hang at 100% for a while, but no where near as long as the first time. I'm waiting to see at what percentage it dies this time.
my zt 180 tablet never got above 94% also. And it dropped pretty quickly and at around 40% it seemed to get a second life and slow down, but eventually it went all the way down to about 10% and then I would charge it (about 3 hours max). It too is a 7.4v supply.
My Odroid T had a 3.4 supply and it was pretty linear, showed charged at 100% and went down accordingly, though the developers had some issues with a few software releases where it did behave erraticaly and they did a few patches that fixed it.
roebeet said:
My original device always seems to take forever to go below 100%, and I just got a new device that has the opposite issue - it never goes above 94%. So I did some further tests, tonight.
My 94% device goes down fairly steadily once unplugged. But, the device at 100% does not. Also, when the 100% device is drained and I recharge it, it still says it's charging when its at 100% - so what does this mean?
I think that the battery calibration is off, as we already assumed. So, my 94% device is really 100% and I suspect that it would survive beyond 0% as it probably still has 6% juice left in reality. And, in the case of the 100% device, it's probably mis-calibrated to 105 or 110% (or more?). Since the UI can't show you 105%, it just shows the max of 100% until it goes below 100% which can take some time. I also suspect that the device would cut out at 5% or 10% since it's actually drained completely.
So that's the reason, I think. As to the fix, I don't know. What's weird is that these two devices are so different in terms of how the battery status is calibrated.
Click to expand...
Click to collapse
Warning: Slightly off topic -
I'm glad Roebeet was able to get a 2nd Gtab. Hope you found a good discount. Happy Holidays!!!
Now back to the topic discussion...
Butch1326 said:
Warning: Slightly off topic -
I'm glad Roebeet was able to get a 2nd Gtab. Hope you found a good discount. Happy Holidays!!!
Now back to the topic discussion...
Click to expand...
Click to collapse
Off-Topic x2 : yep, got used one that another XDA user had returned!
On-Topic: Still waiting for the battery to discharge, it went to sleep last night. Getting close....
roebeet said:
Off-Topic x2 : yep, got used one that another XDA user had returned!
On-Topic: Still waiting for the battery to discharge, it went to sleep last night. Getting close....
Click to expand...
Click to collapse
I also had the issue of battery showing 100% for a long time and then cutting out around at 50%. One of the posts mentioned doing a battery stat wipe in CWM after charging to 100% + 30 minutes.
I did this with a little twist of my own.
I allowed the battery to drain completely and tab to shut off. Plugged in the charger and immediately did a battery wipe in CWM. Allowed the battery to charge fully upto 100% + let it be on charger for additional time till the battery symbol in the notification bar no more showed charging sign. Again did the battery stat wipe in CWM and then rebooted the tab.
Since then i observe that the battery has been draining as it should be expected to. down to 72% after about 4+ hours of use. I will still be monitoring the battery discharge further for two or three more charge cycles. But I feel doing battery stat wipe in cwm 2 times at full drain and then again at full charge might have helped caliberate it properly.
Let me know if anyone else tries this and gets same or different observations.
Try installing this to measure your current usage over the life of the battery... (dont have a GTab and still considering). Since most likely this widget and the battery monitor are using the same API we will see if its a hardware sensor issue or a software issue...
http://www.appbrain.com/app/currentwidget/com.manor.currentwidget
I suspect its in their battery monitor and not the sensor or API... if that is the case it should be easy to debug (if you have the source). Typically these issues are due to poor polling algorithms...
Im new to android so I am unfamiliar with profiling capabilities of the platform...(Still learning)
Perhaps this will be one of the 'little fixes' that will be present in the latest FW update when VS drops it tomorrow. I have the 100% unit BTW. A fix would be nice.
Reading this thread this morning it got me thinking about my gtab battery situation. When I first got the gtab, the battery stayed at 100% for hours, then the percentage dropped like a rock. Over time, the battery dropped in more regularly, although it drops in large numbers (like from 100% to 83%, then to 67%, and so on). I'm currently running TnT Lite 3.0.
This morning I charged the battery to 100%, and while plugged in (to the AC outlet), I reset the battery stats using cwm. The battery today has been steadily going down throughout the day as I would expect. In over 8 hours, I watched the battery go down steadily from 100% to 84%. So far, so good.
my exp
Tried draining once, just let it sit, didn't fix it.
Tried again but this time I kept the screen on and watched the voltage, shutdown was near 6.8 volts. Now the meter is accurate. YMMV...
@it'sDon - it wasn't fixed in the update.
I was in the same boat as most of you. Took a very long time to go down from 100% and then zonked out completely at ~10-15%. It's now been charging for a few hours and it's been sitting at 100% for quite a while but the light is still red (so it's still charging) which means it will probably happen again looks like it's charging to some value over 100% and when it discharges, knocks out while the meter is still reading as having juice. Roebeet is 100% on the money.
I am going to try the CWM battery value reset some of you mentioned to see if it does something once my light is green, then I won't charge it and watch it like a hawk once it hits 20% to see if it shuts down at 10-15% or a value less than 3% which is acceptable I think.
I never had a problem on my stock(ish) g-tablet. That is until I installed the latest update.
I had to do a data wipe before any of the cosmetic TnT changes would show. After that the battery now seems stuck at 100%. This wasn't that way before, so I will try draining the battery, and see what happens.
Since I found that this was tied to my latest update, I think that I should call CS and complain.
My battery drain didn't make a difference, either. Still haven't pinned down a fix that works.
At least those of you with 94% max have a general idea when your battery will die. With us "100% forever" ones, we have no clue.
Actually, I may not have a problem after all. I have had my tablet on for about two hours. It is now showing the battery at 86%.
I'm having issues with my phone shutting off when the battery meter is low but not dead.The indicator will be yellow and still shut off. When I power it back on and plug it in, its completely dead .
is the phone innacurately reporting the battery percentage?
Sounds like the battery isn't conditioned correctly. There are apps in the market to help with that.
Look in battery configs battstats prob in /data/system and prob elsewhere
Sent from my HTC VLE_U using xda premium
Arent there other ways to condition the battery with an app? i heard like running the phone to empty and then fully charging? any advice?
The problem with running it empty is the battery will never fully discharge because the phone is reading the stats incorrectly.
can you recommend any specific app for this? do you have to be rooted?
You'd have to look at the requirements per app but I do believe you need root.
Your phone isn't going to report one thing, but "believe" a different thing because of bad battery stats. A Google employee has already debunked "conditioning" your battery by deleting battery stats; the phone uses it for reference only, not to make any decisions, especially when to shut down. Something is wrong with the battery itself, or your phone, not your stats.
Swyped, not typed, from my Digital Brick
It might be better over time. Had mine for two weeks now, and I had it run out on me three times. First time it shut down at about 13% left on the meter, second time around 8% and this last time at 2%. Good enough for me, but it's annoying if an untampered new phone doesn't report at least somewhat close to real battery-state.
I usually hook it on the charger at 15%-30% (approx 12-16 hours usage) in the evening, and sometimes have a few short charges (25-30 minutes) from the car-charger during the day.
I've never let mine get below 50% since I got it, but I just ran it into the ground with a terminal process ('yes && yes') and it went all the way to 0% and then powered off.
I've had my phone for quite a while now and played around with it a lot. Originally, I power cycled the battery, thinking it was the best thing to do. To my dismay, my battery barely lasted me through the day. No matter what I did, I could not get it to match what some other people indicated they get out of their battery - 35-40 hrs or more. I rooted, dimmed the display, installed JuiceDefender, uninstalled Juice Defender, unrooted, power cycled 3 or 4 times again...
...and then one day I woke up, probably three month into me having the phone, and the phone was amazing. I came home from work at 5 pm with 72% still on the battery. I was in heaven. Until a month ago.
A month ago, I accidentally let the battery run out completely. I had done that before (though I try not to) so I thought it wasn't a big deal. I hadn't installed any new apps or done anything differently, but now my battery will hardly last me through the day again. My once amazing battery is less then average again.
I've tried everything you normally read on forums. I have a good idea of how to save battery life - it's set to Maximum Battery Savings - and have tried all of the stuff that is typically recommended. I've not killed apps, but I don't think that would really help to begin with anyway.
So...here I am to ask if anybody has any other ideas for me. Anything at all? The thing is...I didn't change anything when my battery was cut down to less than normal size!!
Help?!?
Rogue app update. Try bad ass battery monitor should give you an idea which one
Motorola lied and I'm still locked mb865
Thanks, I will try that. I tried Battery Monitor, which told me AT&T Address Book was a main culprit. Doubt that since I could never do too much about that one...
This is what you'll see under the apps tab. Much more useful than others I've tried.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Motorola lied and I'm still locked mb865
So right off the bat, here is what it says:
Phone 29.3%
Screen 2.1%
Phone Radio 45%
Wifi Active 10.1%
Held Awake 2.6%
Bluetooth 0.0%
App Usage 11.1%
For Phone Radio, the Signal Strength from 1-5 has 2 listed as 72%
For App usage there's not much beside the kernel to report.
How does that help me? My reception at work is always iffy - but it's always been that way so that cannot be the culprit.
Pilgrimtozion said:
I've had my phone for quite a while now and played around with it a lot. Originally, I power cycled the battery, thinking it was the best thing to do. To my dismay, my battery barely lasted me through the day. No matter what I did, I could not get it to match what some other people indicated they get out of their battery - 35-40 hrs or more. I rooted, dimmed the display, installed JuiceDefender, uninstalled Juice Defender, unrooted, power cycled 3 or 4 times again...
...and then one day I woke up, probably three month into me having the phone, and the phone was amazing. I came home from work at 5 pm with 72% still on the battery. I was in heaven. Until a month ago.
A month ago, I accidentally let the battery run out completely. I had done that before (though I try not to) so I thought it wasn't a big deal. I hadn't installed any new apps or done anything differently, but now my battery will hardly last me through the day again. My once amazing battery is less then average again.
I've tried everything you normally read on forums. I have a good idea of how to save battery life - it's set to Maximum Battery Savings - and have tried all of the stuff that is typically recommended. I've not killed apps, but I don't think that would really help to begin with anyway.
So...here I am to ask if anybody has any other ideas for me. Anything at all? The thing is...I didn't change anything when my battery was cut down to less than normal size!!
Help?!?
Click to expand...
Click to collapse
Draining your battery until the device powers down isn't something to worry about. The battery can be "seasoned" when you first pull it out of the box by allowing it to drain until power down, then while still powered off, plug in your charger without powering the phone back up, and allowing it to charge fully, then power on/drain to power down/charge while powered off/power back on repeatedly three to four times. This is a common practice for some people (perhaps as neurotic about such things as myself) to make sure your battery is getting full charging cycles.
Partial charging cycles won't hurt anything either. For instance, you can charge fully, then at some point during the day, plug your charger in and charge it from say, 70& to 100% without any issues. The device has built-in programming that will not allow for overcharging, which some users seem to have concern about. That being so, you can plug in your phone, leave it charging (even while at 100%) for as long as you see fit without having any "overcharging" to the battery occurring.
Sounds like you do have a rogue app that is consuming battery, so that would be the first thing to investigate -as mtlion stated. There are some other steps that you can do, to ensure your battery is a full charge, as there are some instances where after flashing roms you can lose some of your battery reporting accuracy or even some battery life. But, see if you can track down which (if any) apps are consuming your battery, and that is an easy fix. Also, if you have questionable radio signal reception, that counld be a contributing factor as well. The phone will constantly look for a signal, and if it loses signal, start the scanning process until it can connect again. Though you may not have noticed this at first, this could also be the reason your battery consumption is so high.
If you experienced such a dramatic change in battery percentages after a full cycle, then could it be possible that the percentages were disoriented and you were mistaken into thinking you had a very high amount of charge left when you really didn't? It seems unlikely, but given the situation you described this fits.
Maybe you had the same battery performance all along, and the 70% showed when you were actually about to run out, but you never found out because you always charged before the bug revealed itself, and the bug was finally reset after your phone was drained.
I wish I could say that it was mistaken all along but I actually went two days without charging regularly. I'm trying to eliminate possibilities and so far have had a little bit of success. The rogue app does sound plausible.
So power cycling now really won't make a difference?
Pilgrimtozion said:
I wish I could say that it was mistaken all along but I actually went two days without charging regularly. I'm trying to eliminate possibilities and so far have had a little bit of success. The rogue app does sound plausible.
So power cycling now really won't make a difference?
Click to expand...
Click to collapse
If, after rooting or more likely that case after flashing a new rom, you often have battery reporting errors (as mentioned above), and re-calibrating the battery along with some steps I will outline for you below will ensure that your battery is getting a full charge, and the battery reporting accuracy is right on. As far as power cycling, I don't know that it does much good. I run my device in performance mode all the time, and with a CPU overclock of 1.25GHz and various tweaks, I have about a day an a half to a day and a quarter of full runtime from my battery. This is with moderate to heavy usage (calls, emailing, text, gaming, web browsing, etc.) so you should have no problems getting acceptable battery performance after following these steps:
1. Take the case off your Atrix 2 (one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market
3. Plug in your Atrix 2 to charge while it's on, wait till it gets to a 100%
4. When the charge is 100%, open the BatteryCalibration app and lookup what the charge is in MV while at 100%. Write it down.
My Atrix 2 was showing ~3400MV while at 100%, which is definitely not the maximum capacity.
5. Discharge your Atrix 2 completely until it shuts off.
A good way of doing this quickly is by turning on wifi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100%
7. When it's at 100%, without unplugging it from the wall charger, take off the battery cover, and take the battery out.
Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%.
Mine showed only 5%.
10. Let it sit there charging for 2-3 hours (or more).
My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours (or more), turn the phone on while holding the volume down button and get into CWM.
Do not disconnect it from the charger still!
12. Wipe battery stats in CWM, reboot.
Do not disconnect it from the charger still!
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers -if you were like me, they should be significantly higher than before. After this whole process I had 4351MV at 100%, comparing to 3400MV before calibration.
Do not disconnect it from the charger still!
14. Before going to sleep - Install Watchdog Task Manager Lite from the market. Go into it's preferences, set CPU threshhold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well.
Do not disconnect it from the charger still!
15. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger.
Go to bed, let your phone sleep too.
16. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more.
I went to bed with 98% and woke up to 94%. So, I consider this mission a success.
Does it make any difference whether I'm currently rooted or not? Cause I'm not...
Had the same issue and the only thing that really worked for me was to wipe the battery cache..... There are apps on the market but did not do the job well like this method.....
Fully charge phone
reboot with bootstrapper (recovery)
go to advanced menu
and then click wipe battery stats
Hope it works for you!!!!!
Pilgrimtozion said:
Does it make any difference whether I'm currently rooted or not? Cause I'm not...
Click to expand...
Click to collapse
The Battery Calibration app requires root permissions. You can always root using the "one-click-root" method, run the above steps, and then "click-to-unroot" using the .bat files within the root folder. It's easy, and takes no time at all to do so. But, it is all in how much fuss you want to put into solving your problem...
Once again it sounds like I need to root my device. Correct assumption?
hankbizzo5 said:
Had the same issue and the only thing that really worked for me was to wipe the battery cache..... There are apps on the market but did not do the job well like this method.....
Fully charge phone
reboot with bootstrapper (recovery)
go to advanced menu
and then click wipe battery stats
Hope it works for you!!!!!
Click to expand...
Click to collapse
Pilgrimtozion said:
Once again it sounds like I need to root my device. Correct assumption?
Click to expand...
Click to collapse
For the CWM Recovery wipe, yes you will need to be rooted.
Sent from my MB865 using xda premium
Rooted, wiped battery stats, and it went from less than 95% up to 98%. Interesting phenomenon. Thank you all heaps! I'll let you know if I run into any more issues.
Pilgrimtozion said:
Rooted, wiped battery stats, and it went from less than 95% up to 98%. Interesting phenomenon. Thank you all heaps! I'll let you know if I run into any more issues.
Click to expand...
Click to collapse
Glad you got things working!
Recalibrated battery this morning when my phone was fully charged. Not seeing much improvement, but I'm letting it run out and then charging it to 100%. Or should I actually be going through the 16 step process described above?
Pilgrimtozion said:
Recalibrated battery this morning when my phone was fully charged. Not seeing much improvement, but I'm letting it run out and then charging it to 100%. Or should I actually be going through the 16 step process described above?
Click to expand...
Click to collapse
You can try either, but calibration is obviously the less time consuming option. It may take a few "full charge to full drain" discharges to get the battery back to an acceptable capacity...
Sent from my MB865 using xda premium
Well, it's a few days later and nothing has made a significant difference. I've been using Badass Battery Monitor to find apps that use an exorbitant amount of battery, but even that has not made a great difference. I've deleted Instagram, a Bible app, a banking App, Temple Run (had a large Sensor Time used), but so far to no avail. It still shows that since I unplugged my phone less than 5 hours ago, the android system has a sensor time used of 1h57m - processes included are servicemanager, com.android.settings, and mid.
Battery Calibration has caused the max charge to be around 4350, but it has not impacted my actual battery life any. I drained it completely, recharged it, did that a few times, then just charged it when at 30-35%, nothing, nothing, nothing.
Any more ideas?
Nobody? At all?
Sent from my MB865 using xda app-developers app
Previously I had Huawei with 4.0.3 and in night time (wifi disabled, sync disabled, no apps active) battery dropped about 3 points, but with Moto it's about 10 points.
How much battery uses your Moto in night time?
ksuuk said:
Previously I had Huawei with 4.0.3 and in night time (wifi disabled, sync disabled, no apps active) battery dropped about 3 points, but with Moto it's about 10 points.
How much battery uses your Moto in night time?
Click to expand...
Click to collapse
The one of mine used last night more or less the same, around 10% with wifi, no apps running, no data conection, etc. I'm a little bit worried about it, i think it's too much battery drop :/
ksuuk said:
Previously I had Huawei with 4.0.3 and in night time (wifi disabled, sync disabled, no apps active) battery dropped about 3 points, but with Moto it's about 10 points.
How much battery uses your Moto in night time?
Click to expand...
Click to collapse
I just go airplane mode and I had a 1% drop over 10 hours overnight.
download BetterBatteryStats or Wakelock Detector and check what eats your battery
fubag said:
I just go airplane mode and I had a 1% drop over 10 hours overnight.
Click to expand...
Click to collapse
I'm using Profile Scheduler, but since 4.3 it can't activate aeroplane mode, without rooting and I always forget switch it manually.
I always turn off my data and WiFi and my phone only drops about 4 to 6 percent overnight
Sent from my MOTO G!!!
well, my battery has dropped 10% inaproximately 5 hours beeing in airplane mode :/ can someone tell me why?
Ninm said:
well, my battery has dropped 10% inaproximately 5 hours beeing in airplane mode :/ can someone tell me why?
Click to expand...
Click to collapse
yes, read my previous post.
Sent from my XT1032 using xda app-developers app
It may have been related to Mediaserver, read - http://forum.xda-developers.com/showthread.php?t=2570854
I need SkyPe so can't unistall it but I disabled AD -s in SkyPe settings, and see does it help.
Edit: I removed latest SkyPe and installed older version and Mediaserver doesn't eat battery anymore.
It seems to do just fine at nighttime for me.
Nearly 0% drain after a night with airplane mode.
Sent from my XT1032 using xda app-developers app
Tonight, in almos 6 hours my battery has dropped around 4% being in airplane mode. I have installed betterbatterystats and i cannot see anything strange
what used up the 4% that is not strange?
I unplugged my phone at around 3am because I rolled over and noticed the notification led blinking. I was at 100% and cleared the notification. Went back to sleep then got up around 5:30am and looked at my phone. I noticed my battery was down more than I expected so I checked the stats. I was down almost 20% in 2 hours 30 minutes. Android OS was at 60% usage with time on a 2 hours 20 minutes. I had sleep assist turned on during the night and I also keep wifi and data on. I've installed Wakelock Detector to see if it will be able to see what in Android OS is keeping my phone on.
Please take a look at
http://forum.xda-developers.com/showthread.php?t=2583419
Scott
fyi. when you charge your phone, the battery starts discharging once the battery is FULL, NOT when the cable is unplugged. However, the battery % will not drop whilst the phone is plugged in,
Therefore, if you charge your phone fully but don't unplug it for hours, it 'may' appear to discharge faster than normal once you do unplug it. (basically the phone will over present it's true charge level).
If you unplug the phone as soon as its fully charged, however, it will appear to discharge more slowly...
helppme said:
fyi. when you charge your phone, the battery starts discharging once the battery is FULL, NOT when the cable is unplugged. However, the battery % will not drop whilst the phone is plugged in,
Therefore, if you charge your phone fully but don't unplug it for hours, it 'may' appear to discharge faster than normal once you do unplug it. (basically the phone will over present it's true charge level).
If you unplug the phone as soon as its fully charged, however, it will appear to discharge more slowly...
Click to expand...
Click to collapse
Lol
Sent from my Moto X cell phone telephone.....
kj2112 said:
Lol
Sent from my Moto X cell phone telephone.....
Click to expand...
Click to collapse
think I must have missed the joke??, or are you wishing me 'Lots of Love' ?
you can test if for yourself if you don't believe me... It protects the battery..
it is very relevant for people who charge their phone over night. The Android battery stats will start the clock ticking from 9am when they unplug their phone, however the battery started discharging 6 hours erlier when he phone was fully charged at 3am... The % then drops much faster than expected as it races to it's 'true' level of charge. This could explain the differences people are seeing in some cases...
helppme said:
think I must have missed the joke??, or are you wishing me 'Lots of Love' ?
you can test if for yourself if you don't believe me... It protects the battery..
it is very relevant for people who charge their phone over night. The Android battery stats will start the clock ticking from 9am when they unplug their phone, however the battery started discharging 6 hours erlier when he phone was fully charged at 3am... The % then drops much faster than expected as it races to it's 'true' level of charge. This could explain the differences people are seeing in some cases...
Click to expand...
Click to collapse
actually you are just partially right. the percentage only drops until reaching a trigger level, where it starts to charge again. also in my opinion when the phone is charged and left plugged in it uses the power directly and leaves the battery untouched
Sent from my phone
helppme said:
think I must have missed the joke??, or are you wishing me 'Lots of Love' ?
you can test if for yourself if you don't believe me... It protects the battery..
it is very relevant for people who charge their phone over night. The Android battery stats will start the clock ticking from 9am when they unplug their phone, however the battery started discharging 6 hours erlier when he phone was fully charged at 3am... The % then drops much faster than expected as it races to it's 'true' level of charge. This could explain the differences people are seeing in some cases...
Click to expand...
Click to collapse
Hogwash.
Lithium batteries don't retain a memory.. You can charge them as often as you want... No matter what percentage your at. And if you leave it plugged in it will keep your battery fully charged with a trickle charge at 100...
I'm not sure what wives tales you've been reading.... But not everything on the Internet is true.... So you know.
I read something else around here lately where a guy was saying basically if you plug in at bedtime, you better wake up after a couple hours and unplug.... Or you'll damage your battery. Lol
Anyway.... Charge how ever you feel you need to.... To each their own. But I guarantee your battery will not drain quicker cause you left it charging all night.... That's simply ridiculous.
No offence.
Sent from my Moto X cell phone telephone.....
kj2112 said:
Lol
Sent from my Moto X cell phone telephone.....
Click to expand...
Click to collapse
kj2112 said:
Hogwash.
Lithium batteries don't retain a memory.. You can charge them as often as you want... No matter what percentage your at. And if you leave it plugged in it will keep your battery fully charged with a trickle charge at 100...
I'm not sure what wives tales you've been reading.... But not everything on the Internet is true.... So you know.
I read something else around here lately where a guy was saying basically if you plug in at bedtime, you better wake up after a couple hours and unplug.... Or you'll damage your battery. Lol
Anyway.... Charge how ever you feel you need to.... To each their own. But I guarantee your battery will not drain quicker cause you left it charging all night.... That's simply ridiculous.
No offence.
Sent from my Moto X cell phone telephone.....
Click to expand...
Click to collapse
its not hogwash, I think maybe you misunderstood me. I'm well aware lithium cells aren't memory cells. In fact, check my post history I posted as much in a thread of someone asking 'how best to first charge their moto G'. So if this is what you thought I meant, fairplay.
However,
Someone clarified above there is a 'threshold' level. however, these phones do not 'trickle charge' it's not a car battery. Charging at full amps when the battery is full would damage it, hence it stops charging, starts to discharge, then at some 'threshold level' will begin charging again, it does not trickle charge..
Also, as a matter of fact a friend of mine is an electrical engineer, does small Linux projects and some work on ARM architecture. I first heard about this behaviour when charging whilst on the XDA S2 forum. We tested the charge in the S2 1650mha battery ourselves and found we could get a variety of charge levels all shown as '100%' on the phone, just by when we unplugged the charger. I'm making an assumption this phone behaves the same, however why would it not?
So, all I would say to anyone on this forum. Just because someone has a lot of posts and thanks and 'knows his stuff' , This guy should take his own advice and not believe everything he reads on the internet...
No offence
Hello, forum
I'm running my OPO on PA 4.6. Over the past few weeks, the battery has lost calibration. It dies at 25% and remains at 100% for quite a while. How can I fix this? I'm open to wiping and reflashing.
Thanks
Raptor
Just try using a battery calibration app.
Transmitted via Bacon
timmaaa said:
Just try using a battery calibration app.
Transmitted via Bacon
Click to expand...
Click to collapse
Thanks for your response! The battery calibration app did the trick initially. However, a few days later, the issue seems to be returning. I've decided to just move on to Lollipop.
Once again, thank you.
Raptor
raptor402 said:
Thanks for your response! The battery calibration app did the trick initially. However, a few days later, the issue seems to be returning. I've decided to just move on to Lollipop.
Once again, thank you.
Raptor
Click to expand...
Click to collapse
did it help?
The same happens to me. I'm using the latest Sultan CM13. I'm trying to do a full recalibration - drain it until it refuses to turn on, keep it on the charger for 6+ hours without turning it on (black battery screen) and then repeat the procedure few times. I have some average success and the phone shuts down at about 10% instead of 50-60% but it doesn't seem to be perfectly calibrated just yet.
nitrobg said:
The same happens to me. I'm using the latest Sultan CM13. I'm trying to do a full recalibration - drain it until it refuses to turn on, keep it on the charger for 6+ hours without turning it on (black battery screen) and then repeat the procedure few times. I have some average success and the phone shuts down at about 10% instead of 50-60% but it doesn't seem to be perfectly calibrated just yet.
Click to expand...
Click to collapse
I'm not sure if you're aware, but you're doing some of the worst things you can do to a lithium battery. You should never completely discharge a lithium battery, and you should also refrain from keeping it at peak voltage (connected to charger once charging is complete). If you've done this a few times I'm not at all surprised that the thing shuts off at 10%, you're basically killing the battery and have depleted its overall health and life.
Heisenberg said:
I'm not sure if you're aware, but you're doing some of the worst things you can do to a lithium battery. You should never completely discharge a lithium battery, and you should also refrain from keeping it at peak voltage (connected to charger once charging is complete). If you've done this a few times I'm not at all surprised that the thing shuts off at 10%, you're basically killing the battery and have depleted its overall health and life.
Click to expand...
Click to collapse
I'm fairly sure that the battery has safety measures that prevents it from completely discharging or overcharging. When the battery is discharged, the phone actually turns on and says that the voltage is too low. Above 80% the phone also enters slow charging mode that takes hours to reach 100%.
Also, I'd rather kill my battery a bit faster (an original replacement battery costs just $10) instead of having a miscalibrated battery that could die whenever I need it.
nitrobg said:
I'm fairly sure that the battery has safety measures that prevents it from completely discharging or overcharging. When the battery is discharged, the phone actually turns on and says that the voltage is too low. Above 80% the phone also enters slow charging mode that takes hours to reach 100%.
Also, I'd rather kill my battery a bit faster (an original replacement battery costs just $10) instead of having a miscalibrated battery that could die whenever I need it.
Click to expand...
Click to collapse
Yeah, but by forcing it to drain until it won't turn on you're bypassing that safeguard. The safeguard is the phone switching off before you can discharge it too far. Your phone shouldn't take hours to go from 80% to 100%, that's another sign of bad battery health. If you keep doing these things the battery will be so bad that it will die completely randomly and at random percentages. By using these methods you're going to bring on much sooner the very situation that you're trying to avoid, only much worse. The correct way to calibrate a lithium battery is the following:
1. Charge to 100%
2. Discharge to 5%-10%
3. Charge to 100%
No need to force it to discharge further than is safe, no need to keep it on the charger longer than is necessary (which is pointless anyway), and it only needs to be performed once every month or so.
Heisenberg said:
Yeah, but by forcing it to drain until it won't turn on you're bypassing that safeguard. The safeguard is the phone switching off before you can discharge it too far. Your phone shouldn't take hours to go from 80% to 100%, that's another sign of bad battery health. If you keep doing these things the battery will be so bad that it will die completely randomly and at random percentages. By using these methods you're going to bring on much sooner the very situation that you're trying to avoid, only much worse. The correct way to calibrate a lithium battery is the following:
1. Charge to 100%
2. Discharge to 5%-10%
3. Charge to 100%
No need to force it to discharge further than is safe, no need to keep it on the charger longer than is necessary (which is pointless anyway), and it only needs to be performed once every month or so.
Click to expand...
Click to collapse
The device is turning on, just refusing to boot. You can't really bypass the safeguard, it is always there.
The slow charging phase after 75-80% is a normal function for all modern devices. You could check this review for more information.
I would do the procedure you are talking about but the reported 100% charge is not actually 100% until the device stays on the charger for hours. Otherwise it dies at 40-50% and refuses to boot up. Even if I charge it for hours, it would take a couple of hours or even a day for the battery to report below 100% charge. It could last an entire day with 100% charge and die at 50% the next day. I can never be sure what's the real charge of the battery, this is why I am willing to sacrifice a part of its life just to get a proper reading.
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Short charges tend to miscalibrate the battery... The phone was at 100% for about 24h, it will probably die at about 50%.
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
raptor402 said:
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
Click to expand...
Click to collapse
which app exactly? root needed?
Sent from my A0001 using Tapatalk
yuval48 said:
which app exactly? root needed?
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
The app is Battery Calibration by NeMa. Root needed.
raptor402 said:
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
Click to expand...
Click to collapse
so i tried it, but today my opo died at 19%.
how can you be sure that "Regular use fixes the battery over a few days"?
i mean, if today ill recalibrate, when(%) should i recharge? i cant be sure if the phone will die at 20%,10% or 1%..
I posted this somewhere a few days ago..
Turn the device off completely then plug it in. A battery indicator should appear on the screen. Don't turn the device on until it reads 100%. Once it's fully charged, power on the device and leave it plugged in until it's fully booted. All should be well.
Battery calibration apps are mainly for Android emulators on PC to get the Android "battery" indicator to match up with laptops. There are no benefits of running one on an Android device and will actually mess up the calibration MORE unless you use it in tandem with the steps above. Still pointless to use it, though.
Neroga said:
I posted this somewhere a few days ago..
Turn the device off completely then plug it in. A battery indicator should appear on the screen. Don't turn the device on until it reads 100%. Once it's fully charged, power on the device and leave it plugged in until it's fully booted. All should be well.
Battery calibration apps are mainly for Android emulators on PC to get the Android "battery" indicator to match up with laptops. There are no benefits of running one on an Android device and will actually mess up the calibration MORE unless you use it in tandem with the steps above. Still pointless to use it, though.
Click to expand...
Click to collapse
ok it seems to work, but when the battery reached 20+% is suddenly dropped down to 10% (also when i charged it, went up from 10% to 20%)
yuval48 said:
ok it seems to work, but when the battery reached 20+% is suddenly dropped down to 10% (also when i charged it, went up from 10% to 20%)
Click to expand...
Click to collapse
Do it, again. Sometimes it takes a few tries. Better if you let your device get down to ~20% then do it.