[Q] A Diff Kind Of Issue With My Battery - HD2 Android Q&A, Help & Troubleshooting and Genera

Did some searches and couldn't find anything like it. The only thing I can think of is Data is corrupt somehow. Anyhow, my issue...
Did a reset a couple days ago and in the reboot system kept giving me an error, then it would retry the boot. After about 5min of that i pressed the back button and it bugged out. Sorry, little white letters move so fast it's hard to ready what it said. Anyway, from that point it booted just fine.
Since then I have noticed an amazing increase in my battery life. Data and Sync on, I'm getting 1-7ma in standby. With GPS on I get 11-15ma in standby. I have now gone 3 days with moderate use and have had my phone on the charger for less than 2 hours. (USB CHARGE and not including just now)
Now, your prob asking how this is a problem. My problem is, I am getting those same numbers when I CHARGE my phone. As of now my phone took 3.5 hours to go from 67% to 85%. My power widget says it's getting 11ma+.
Essentially I got awesome battery life but craptastic charging speed now
Does anyone know of a command prompt thing I can use to wipe my battery data? I have a feeling it's throwing things off...

Related

Something's not right with my battery, don't you think?

Ok, guys look... I know there are lots of variables, but I get back from work, it's been 12 hours since my 100% charge, I'm at 26%. I get home, I charge my phone. It's back up to 100% in about 2 hours. I try some weather widgets on my phone, answer 3 emails quickly, I'm down to 83%. Something must be up, right?
I have notice this happen and its because the phone reads the battery is at 100 but you still need to let it charge longer for it to hold the charge. I suggest a full charge then kill it until it shuts off. Then let it charge while off until the LED turns green and maybe for a little time after that. Do that a few times and you should see some improvement.
Ok, well perhaps I'll have to try that then. Can the battery be reconditioned? Do these batteries have memory?
How long have you had the phone? Battery life should improve after having the phone for 5-10 days.
Like what joe333x stated.When I first got my phone I charged it up to 100% and turned it off until the led turned green for about 30mins. After that I get about 16hrs of battery life.
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I've had the phone since last Thursday night (not yesterday) and I know that two times, I unplugged when it was orange. Guess I should have left it.
The other thing possibly battery related is that right now for example, I have thhe little cycling arrows icon on my taskbar. I am 99% positive that I have nothing set up to be syncing for THIS long. It's been on all day. I unplugged at 7:45AM, it's now 11:21AM, I've done maybe 15 text messages, and the phone is at 77%. You can see how I might find this frustrating.
tinpanalley said:
I've had the phone since last Thursday night (not yesterday) and I know that two times, I unplugged when it was orange. Guess I should have left it.
The other thing possibly battery related is that right now for example, I have thhe little cycling arrows icon on my taskbar. I am 99% positive that I have nothing set up to be syncing for THIS long. It's been on all day. I unplugged at 7:45AM, it's now 11:21AM, I've done maybe 15 text messages, and the phone is at 77%. You can see how I might find this frustrating.
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i understand. i'm having the same problem. my battery died on me after 5hrs of usage, or complete setup, i should say. i just got off the phone w/ t-mo support in hopes of getting a replacement battery. no go. the operator said her phone dies in 2-3hrs, so i should be happy w/ 5. opted me to buy a spare battery for $50. i am very displeased.
you guys have something running in the background for sure ..go into your acocunts and sync the very least turn off the tmo garbage if not all of them except for google.. If you see my thread I've gone over36 hours on one charge
I've got all of them off, even weather cause I'm using Weatherbug.
But I do have background data on. But I don't wanna be completely disconnected to my data. What exactly does background data run?
turboyo said:
you guys have something running in the background for sure ..go into your acocunts and sync the very least turn off the tmo garbage if not all of them except for google.. If you see my thread I've gone over36 hours on one charge
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my 5hr kill is after doing a factory reset. only thing set to sync is google. no facebook or twitter accounts are linked. display is on the minimum. screen timeout is 15sec. no wifi, bluetooth, or gps. so i'm at a lost.
are you still experiencing that kind of life?
Same here. No wifi, no bluetooth, no Google, no GPS. All I have even remotely "automated" are my emails, my text message data, my freakin phone. That's it. It's gotta be the battery charging thing I think because there's nothing else draining my battery and yet the little sync circular arrows are still on my task bar.
Oh, and by the way... since my message at around 11:15 or so, I'm now down from 77 to 70 per cent. 7 percent in an hour without doing anything.
The things like tmobile and weather are set to sync automatically from the factory (meaning theyre set after a wipe) Have you guys gone into the settings and made sure you turned them off??
I have, yes. They have been off all week. 12 hours usually gets me down to about 26 per cent. That's a 6 day average, moderate use.
that doesnt sound too bad for 12 hours.. have you tried killing it a few times and fully recharging?
my thing is, i find it quite unpleasant that i'm having to disable all the basic or advertised functions of my phone just to have the same, if not, worse battery life? i find myself not even wanting to answer some calls because of the thought that one 5min conversation will dock my battery more than 5%.
It is incredibly ridiculous to have to be constantly concerned that if I do a search on the internet, that my phone may die earlier than I can afford. Additionally, I don't wanna be one of those annoying people running around all over the place with an AC adapter trying to plug my phone in every place I go to. Nor do I think I should have to keep a USB cable handy for when I'm at work. Plus, what's the deal with the batteries, do they or do they not have a memory that requires them to be fully charged and then fully discharged?
Hey guys,
I just joined because of this specific issue myself. My girl has the mytouch 3G and she could go for almost TWO DAYS without a charge. I leave my house at 7AM every morning, and return about 7PM. By the time I get home, I've maybe texted a few people, made one or two phone calls, and my battery is sub 30%. I've turned off wifi, bluetooth, and the display is just about as dark as it can go.
I just turned off the background data option, and had to manually go into all the accounts and make sure the sync was also not running. We'll see what happens.
Does anyone know if there is a 2.2 FW for this phone we can use yet? I've read up on user created FW (like cyanogen) because they cut out all the useless crap most of us will never use.
tinpanalley said:
I've had the phone since last Thursday night (not yesterday) and I know that two times, I unplugged when it was orange. Guess I should have left it.
The other thing possibly battery related is that right now for example, I have thhe little cycling arrows icon on my taskbar. I am 99% positive that I have nothing set up to be syncing for THIS long. It's been on all day. I unplugged at 7:45AM, it's now 11:21AM, I've done maybe 15 text messages, and the phone is at 77%. You can see how I might find this frustrating.
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Click to collapse
I noticed this too. Its due to that fact that from default there are a bunch of things that sync now not just your gmail account. Go into settings and disable all the unneeded things and you wont see it as much.
poetik517 said:
my thing is, i find it quite unpleasant that i'm having to disable all the basic or advertised functions of my phone just to have the same, if not, worse battery life? i find myself not even wanting to answer some calls because of the thought that one 5min conversation will dock my battery more than 5%.
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Click to collapse
I have had these issues before and it was almost always due to somthing in the background.
but letting the battery drain till it shuts down then charge 5+ hours then drain again, always going till it dies is the key, it will run a long time after it says it is done...
bhang
bhang said:
I have had these issues before and it was almost always due to somthing in the background.
but letting the battery drain till it shuts down then charge 5+ hours then drain again, always going till it dies is the key, it will run a long time after it says it is done...
bhang
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i'm continuing that "conditioning" now. it died yesterday after 5hrs fresh from a factory reset. i charged it for 8hrs. i will perform another day of drainage and overcharge today.

[Q] EPIC 8 hour max battery life -- is this normal?

I am LUCKY to get 8 hours of battery life on my brand new stock Epic.. I usually get 4-6 hours. It will NOT last through a normal day of work without putting it on the charger around lunchtime. I take it off the charger around 6:30 AM and I am usually home by 4PM and have to immediately go and charge my phone.
Even if I put it on airplane mode, kill all running applications, and shut the screen off to standby, the phone still seems to suck battery life down very quickly (~5% in 20 minutes on airplane mode, wtf???).. So airplane mode doesn't help.. And I really DON'T want to put it in airplane mode to conserve battery because then my phone is completely useless -- it won't even ring when my wife calls..
Is my battery defective? Please tell me it is... This can't be right..
Are there processes still running that use lots of CPU, even when the stock sprint "task manager" program shows that nothing is running? Is there anything I can do to improve this if I root the phone? How about custom roms? I would really like to run Froyo/Gingerbread anyway.. If anyone has any suggestions to help to make my battery life not such an EPIC FAIL, I would greatly appreciate it.
EDIT: Also wanted to comment on the SLOW CHARGING. With the stock Samsung wall charger, it takes at least a couple of hours to get a full charge. With a USB cable plugged into a PC overnight, it only gets to about 50%. Compared with my previous phone, the HTC TP2, this is really really REALLY slow. It charged in 30-60 minutes and the battery lasted much longer.
I did notice that Samsung only provides a 0.7 amp charger, versus a 1.0A charger for the TP2. Why does Samsung limit the charge current like this? And apparently there is no nueBattery mod driver for android
UPDATE: JuiceDefender looks very promising. Installed the free version and my battery is only down to 95% after one hour. Thanks for the suggestion.
FWIW, I'm getting about the same 8ish hours on mine running DK28. I'm losing about 4% an hour without touching it. I'm seeing some people claiming insane battery life (18 hours with heavy browsing on wifi) I wish I knew how they were managing that.
Wait, it won't even ring when you're wife calls? and you're complaining?
First, the airplane mode means you switch the phone to airplane mode first then switch it back so you won't have time without signal problem which can cause battery drain.
I am able to get 10+ hrs at least by doing the following
1) use airplane mode trick so no TWS
2) use titanium backup to remove a bunch of stock junk
3) use titanium to freeze certain applications (DRM, MediaHub, Qik etc)
4) Have as few applications as possible that constantly pull data
Just yesterday I had 1 day 17 hours before switching
Yesterday when it finally gave up the ghost with the battery indicator blinking i checked my stats.
I had 1 day, 17 hours unplugged. Screen time was around 2 hours and some minutes. I had 45 minutes of talk time.
One thing i will add is I purchased a charger with two batteries off Ebay. Previously when charging with the stock charger as soon as I pulled it off the charger it would read 97%. With the seperate charger it reads 100% for quite awhile before it starts to drop.
And for the record I purchased this charger and two batteries of Ebay for a winning bid of $0.01, plus $9.95 S&H. It was a steal in my opinion.
Unless you are getting near 12 hours of battery life, one of 3 things is occurring:
1) You are using the phone an insane amount
2) You messed something up
3) The battery is defective
For the record, its almost always number 2.
I suggest doing a Factory reset, which will wipe everything off the phone. Then without installing anything or setting your facebook to update every 15 seconds, see how long the battery life lasts. If it is still only 4-6 hours, then your battery is most likely defective.
well of course it won't ring if your wife calls if its in airplane mode. That radio is turned off.
8 hours? That's it? I wouldn't call that normal, but that's just me...
I just plugged my phone in after 4 1/2 days (108 hours) running on a stock 1500maH battery, running Quantum Rom 1.5 (DK17), no special apps running to disable data (aka Juice Defender, etc.), not in airplane mode at all, with the DRM software running, in other words, a more or less 'Stock' configuration (taking into account any differences in the base Rom).
Granted, I barely used the phone in the last 4 days though
muyoso said:
I suggest doing a Factory reset, which will wipe everything off the phone. Then without installing anything or setting your facebook to update every 15 seconds, see how long the battery life lasts. If it is still only 4-6 hours, then your battery is most likely defective.
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Click to collapse
I'll do that. For the record, I've got fbook set to never update, and seesmic once every 6 hrs.
Koadic said:
8 hours? That's it? I wouldn't call that normal, but that's just me...
I just plugged my phone in after 4 1/2 days (108 hours) running on a stock 1500maH battery, running Quantum Rom 1.5 (DK17), no special apps running to disable data (aka Juice Defender, etc.), not in airplane mode at all, with the DRM software running, in other words, a more or less 'Stock' configuration (taking into account any differences in the base Rom).
Granted, I barely used the phone in the last 4 days though
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Click to collapse
LOL at screen on for 52 minutes total. That is 11.5 minutes a day.
muyoso said:
LOL at screen on for 52 minutes total. That is 11.5 minutes a day.
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Click to collapse
Like I said, barely touched my phone in the last 4 days... been feeling a little under the weather so have been at home a lot and in bed doing all my internet stuff and gaming (pogo) on a laptop instead of on my phone.
Since I updated to the leaked Froyo, my battery life has plummeted. It lasts maybe 1/3-1/2 as long as it used to. Turning off 3G has helped immensely though, so that must be the culprit. I used to be able to leave 3G on while at work and make it to bedtime before having to charge it. Or if I shut it off at night (which I usually do), it would make it through my commute to work the next morning. Now, I'm lucky to get through the work day unless I turn off 3G. Huge difference in battery life for me since updating. I'm hoping they fix this in the official release of Froyo.
Well, I've recently found out that if you flash via update.zip while the USB is plugged in, you'll mess up the battery calibration of your device. This is what I did, and i'm pretty sure the cause of my problems. I did find a fix, and here it is:
siliconaddict said:
This is the procedure that works for me:
The following steps should significantly extend the battery life on your phone:
1. Let the battery drain close to empty (5% or less).
2. Connect the phone to the charger (AC or USB, USB is better) while powered on and allow the phone to charge until the notification LED is green, indicating the device is fully charged and untill the voltage is at least 4187mV. A higher voltage like 4192mV or more is even better. Use a tool like Overcharged or Battery Indicator to monitor this. Note that a green notification LED does not automatically mean that the voltage is good too.
A higher voltage means in practice that it will take longer to discharge, a lower voltage means that the battery will discharge a lot quicker! The difference can be quite significant!
3. Disconnect the phone from the charger and power it off.
4. Reconnect the phone to the charger while powered off and allow the phone to charge until the notification LED is green. The notification LED may turn green immediately. Leave it on the charger for another hour.
5. Disconnect the phone from the charger and power it on.
6. Once the phone is powered on completely (has restarted fully) wait 2 minutes and power it off again.
7. Reconnect the phone to the charger while powered off and allow the phone to charge until the notification LED is green. The notification LED may turn green immediately. Leave it on the charger for another hour.
8. Leave the phone on the charger and reboot into the ClockWorkMod recovery menu and wipe the battery stats via -> Advanced -> Wipe battery stats.
9. Disconnect the phone from the charger, restart the phone and start using it as normal.
From then on always let the battery drain close to empty (5% or less) as often as possible and then charge untill the voltage is at least 4187mV. A higher voltage like 4192mV or more is even better.
Normally you will have to do this only once. However, on all Android ROMs, if you flash a ROM while charging or during the first boot screen on, first boot mucks up the levels Android thinks the phone is at, i.e. Android will think you’re at 100% when maybe you’re only 90% or whatever. So in theory you will need to repeat this every time you flash a ROM while charging!
Better is to make sure the battery is charged before you flash a ROM and just remove the USB/charge cable before you flash a ROM. Put it back in (if you must) after the first boot screen (when the custom screen or whatever shows).
Click to expand...
Click to collapse
There is a shorter version that also seems to work well:
vidler said:
So combining the two bits of info we've compiled, the best way to calibrate your battery is as follows
1: Charge phone whilst on till LED is green.
2: Disconnect phone from charger, power it off.
3: Reconnect to charger with phone powered off and allow to charge till LED is green.
4: Disconnect the phone from charger, power it on. Once completely powered on, turn it off again and reconnect to charger until LED is green.
5: Reboot into recovery (back button held at same time as power button) and wipe battery stats.
Battery should now be calibrated.
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Click to collapse
From what I've been told, you don't have to wipe the stats (you need root to do that) but it helps if you can.
I think this may also stem from interrupting the inital charge of the device. I know I did this on both my wife's device and mine (plus my added fubar of flashing with the USB in). Anyway, hopefully I can report some good news tomorrow.
If y'all are really interested in reading a 51 page thread on this, go here: http://forum.xda-developers.com/showthread.php?t=755903
I get 4 or 5 hours if that. I can barely make it to 6. But i probably use my phone more than the average person. Because i take public transportation and browse, stream, email and have 4g connected on my commute back and fourth.
diego1985 said:
I get 4 or 5 hours if that. I can barely make it to 6. But i probably use my phone more than the average person. Because i take public transportation and browse, stream, email and have 4g connected on my commute back and fourth.
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I've been running JuiceDefender for about 5 hours now and I am loving it.. I still have 75% and I can still receive calls just fine.. It turns off data when the screen is off, but turns it on at scheduled times (default is 1 min every 15 min) so that your emails/twitters/etc can update like normal. The paid version has even more features so I bought it..
Never mind im dumb for not reading his post. Already answered my question sorry.
sleebus.jones said:
Well, I've recently found out that if you flash via update.zip while the USB is plugged in, you'll mess up the battery calibration of your device. This is what I did, and i'm pretty sure the cause of my problems. I did find a fix, and here it is:
There is a shorter version that also seems to work well:
From what I've been told, you don't have to wipe the stats (you need root to do that) but it helps if you can.
I think this may also stem from interrupting the inital charge of the device. I know I did this on both my wife's device and mine (plus my added fubar of flashing with the USB in). Anyway, hopefully I can report some good news tomorrow.
If y'all are really interested in reading a 51 page thread on this, go here: http://forum.xda-developers.com/showthread.php?t=755903
Click to expand...
Click to collapse
Decided not to quote the whole thing but I'm in the process of doing this right now! Took 2 hours to drain my batt from full (running everything and keeping my phone searching for gps constantly in a place where it would also be searching for signal makes quick work of a battery!).
knyque said:
Wait, it won't even ring when you're wife calls? and you're complaining?
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*golf clap*
diego1985 said:
I definitely need to try that out. Can you still receive calls or no?
Sent from my SPH-D700 using XDA App
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Click to collapse
Yes, with juice defender I can receive calls and my gmail/twitter/facebook/etc. are all already up-to-date whenever I pick up my phone. It works exactly as before, except my battery is not constantly being drained now.
I guess the downsides are that I might not get a new email notification for 15 minutes, and that there is a service running in the background that may cause some slowdown. Neither has been a problem for me so far. I highly recommend this application for Epic 4G owners. Problem solved, basically.
I usually get 12hrs with moderate use (~2hrs with screen on, half of that is usually on the browser). I turn background data off bc I don't have a twitter and I rarely check Facebook so when I do I just use the browser.
I also noticed that wifi burns more battery on DK28, on 2.1 I would hardly lose any battery on standby with wifi, now I get a 3-4% drain per hour... But with 3g on now I lose less then 1% an hour, it used to be a battery hog.

Getting 10% Battery Drain/Hour - And Everything is Turned Off!

So somehow my phone did not like the Froyo update, would not boot after install or even a factory wipe.
So Verizon swapped it for a refurbished one, Ive had it for 5 days.
It had 2.2 installed when I got it. However the phone is almost useless for me now, It wont last a full day with nothing on, no GPS, no WiFi, no mobile data, no apps running, only turning it on once or twice during the day to check things and each time I do the battery draining like crazy!
I used to get 5 days out of my old phone, literally, because I am not a big user. I actually did play with the phone the day after I received it, to personalize it, and I drained 50% of the battery in an hour!
This is the same battery as in my phone, you dont get a new battery with the replacement.
I think its a hardware problem with the phone, but a guy at work says its just the 2.2 update, that it slams the battery.
Im going to take it back to Verizon tomorrow and see what they will do for me. If they wont fix this, I will simply revert back to my old flip phone since it lasts 5 days and cancel my data plan.
Keep on them to get that one replaced. Something in your hardware is definitely borked.
Even running WiFi hotspot, I don't see anywhere near that kind of drain (50%/hour). At the very worst, my idle drain was about 9%/hour.
This is not a good thing.
KneeDragr said:
So somehow my phone did not like the Froyo update, would not boot after install or even a factory wipe.
So Verizon swapped it for a refurbished one, Ive had it for 5 days.
It had 2.2 installed when I got it. However the phone is almost useless for me now, It wont last a full day with nothing on, no GPS, no WiFi, no mobile data, no apps running, only turning it on once or twice during the day to check things and each time I do the battery draining like crazy!
I used to get 5 days out of my old phone, literally, because I am not a big user. I actually did play with the phone the day after I received it, to personalize it, and I drained 50% of the battery in an hour!
This is the same battery as in my phone, you dont get a new battery with the replacement.
I think its a hardware problem with the phone, but a guy at work says its just the 2.2 update, that it slams the battery.
Im going to take it back to Verizon tomorrow and see what they will do for me. If they wont fix this, I will simply revert back to my old flip phone since it lasts 5 days and cancel my data plan.
Click to expand...
Click to collapse
You need to make sure your old battery is calibrated to your new phone.
1 - install CWM recovery.
2 - tonight when you go to bed, power off your phone (power off is not screen off). Plug in your charger and charge overnight, USB charging prefered over wall power charging.
3 - in the morning when 100% charged battery is indicated, boot first into CWM recovery and wipe battery stats, after which boot back into Android then you can check for battery longevity again.
beray5 said:
You need to make sure your old battery is calibrated to your new phone.
1 - install CWM recovery.
2 - tonight when you go to bed, power off your phone (power off is not screen off). Plug in your charger and charge overnight, USB charging prefered over wall power charging.
3 - in the morning when 100% charged battery is indicated, boot first into CWM recovery and wipe battery stats, after which boot back into Android then you can check for battery longevity again.
Click to expand...
Click to collapse
Wiping battery stats seems to be a placebo effect. For anyone with serious drain (several % per hour), wiping battery stats does nothing. Its a shame so many threads are corrupted with this misunderstanding when there are other very real sources of battery drain on froyo ROMS.
Scrappy1 said:
Wiping battery stats seems to be a placebo effect. For anyone with serious drain (several % per hour), wiping battery stats does nothing. Its a shame so many threads are corrupted with this misunderstanding when there are other very real sources of battery drain on froyo ROMS.
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Click to collapse
It's perfectly normal for some people that wiping batterystats.bin did nothing useful, it's also perfectly normal for others to loose 1/3 of battery capacity from being uncalibrated.
It's definitely perfectly normal for some to loose 10% per hour from being uncalibrated.
This kind of variance often confused people.
After doing some experiments, I think its Froyo.
The reason is I turned off mobile data and the battery only drained 2% in 3 hours. Then I recorded some vids of my daughter and played them back with her and over those 3 hours it only dropped 6%. Seems pretty reasonable. I know in my original post I said I had mobile data off, but I realized I actually hadnt, sorry for the confusion.
So I turned on WiFi and GPS overnight and it only dropped 4% overnight.
So something in Froyo is sucking down huge amounts of battery when mobile data is turned on.
Or its still possible its hardware related, that the data radio runs non stop when its turned on, just seems unlikely.
A guy at work suggested turning off data roaming and turning back on mobile data and seeing what it did.
I've had my phone draining at about 10% per hour before, never did figure out what caused the problem. But I flashed back to stock (following the instructions to get ED01 by flashing back to DL09 and then running the update.zips), and that seems to have fixed it. Since 2.2, I've stayed largely stock - stock kernel and just debloated the stock rom. So far, that's what I've found to give the best battery life for me - 48 hours on a charge on average.
Few things to do/keep in mind:
Clearing the battery stats might not solve the problem, but it can't hurt. Charge the phone to 100%, then turn it off but leave it on the charger. Once the powered off battery indicator on the screen shows 100%, boot into CWM and wipe battery stats. Take it off the charger, turn it on and use it normally until the battery gets down to 5% or below. Charge it back up and you're good to go.
Also, give it a few days/battery cycles to come up to full capacity. I seem to notice shorter battery life immediately after a wipe, but after a few days, it's back to the normal 2 days or so between charges.
KneeDragr said:
After doing some experiments, I think its Froyo.
The reason is I turned off mobile data and the battery only drained 2% in 3 hours. Then I recorded some vids of my daughter and played them back with her and over those 3 hours it only dropped 6%. Seems pretty reasonable.
So I turned on WiFi and GPS overnight and it only dropped 4% overnight.
So something in Froyo is sucking down huge amounts of battery when mobile data is turned on.
Or its still possible its hardware related, that the data radio runs non stop when its turned on, just seems unlikely.
A guy at work suggested turning off data roaming and turning back on mobile data and seeing what it did.
Click to expand...
Click to collapse
Definitely seem to be software problem instead of hardware, I suggest leaving everything on -Wifi, GPS, bluetooth, etc... and disable all data sync only one at a time to check for power usage.
KneeDragr said:
After doing some experiments, I think its Froyo.
The reason is I turned off mobile data and the battery only drained 2% in 3 hours. Then I recorded some vids of my daughter and played them back with her and over those 3 hours it only dropped 6%. Seems pretty reasonable.
So I turned on WiFi and GPS overnight and it only dropped 4% overnight.
So something in Froyo is sucking down huge amounts of battery when mobile data is turned on.
Or its still possible its hardware related, that the data radio runs non stop when its turned on, just seems unlikely.
A guy at work suggested turning off data roaming and turning back on mobile data and seeing what it did.
Click to expand...
Click to collapse
Load up Spare parts and see what it says in Battery History. Under 'Other Usage', it should show that running is less than 100% (depending on your usage patterns, this could read anywhere from 10-90%, but it should never show 100%). Do this after having been unplugged for a while.
If running shows 100%, you have a wake lock, which is forcing the phone to be awake 100% of the time, rather than sleeping and using much less power.
You can use dumpsys power from an su terminal or adb to look and see if you have any locks.
If no locks show up, and running still shows 100% (or even if it doesn't) with mobile data on, then there's definitely something wrong with the data radio, and you should have it swapped.
Don't accept any other answer from either phone CSR or in-store rep. No matter how they try and excuse it, constant 10%/hour and up to 50%/hour drain is completely abnormal.
Ok this is what spare parts says
Running 5.2%
Screen On 3.1%
Phone On 0.5%
Wifi On 77.2%
Wifi running 55.6%
Try this, it will tell you what it causing the drain.
http://forum.xda-developers.com/showpost.php?p=13534133&postcount=23
KneeDragr said:
Ok this is what spare parts says
Running 5.2%
Screen On 3.1%
Phone On 0.5%
Wifi On 77.2%
Wifi running 55.6%
Click to expand...
Click to collapse
Is that with Mobile Data on? Are you still seeing 10%+/hour drain with those stats?
If you're seeing that kind of running time (which is good), and you're still getting huge drain (which is bad), then your phone is broken and needs to be replaced.
KneeDragr said:
So somehow my phone did not like the Froyo update, would not boot after install or even a factory wipe.
So Verizon swapped it for a refurbished one, Ive had it for 5 days.
It had 2.2 installed when I got it. However the phone is almost useless for me now, It wont last a full day with nothing on, no GPS, no WiFi, no mobile data, no apps running, only turning it on once or twice during the day to check things and each time I do the battery draining like crazy!
I used to get 5 days out of my old phone, literally, because I am not a big user. I actually did play with the phone the day after I received it, to personalize it, and I drained 50% of the battery in an hour!
This is the same battery as in my phone, you dont get a new battery with the replacement.
I think its a hardware problem with the phone, but a guy at work says its just the 2.2 update, that it slams the battery.
Im going to take it back to Verizon tomorrow and see what they will do for me. If they wont fix this, I will simply revert back to my old flip phone since it lasts 5 days and cancel my data plan.
Click to expand...
Click to collapse
Sent from my HTC HD2 using XDA App
AlexDeGruven said:
Is that with Mobile Data on? Are you still seeing 10%+/hour drain with those stats?
If you're seeing that kind of running time (which is good), and you're still getting huge drain (which is bad), then your phone is broken and needs to be replaced.
Click to expand...
Click to collapse
Thats total since all time.
So I had the phone all weekend with wifi and mobile data on, then one day with wifi off, then one day with wifi on, mobile data off.
But the battery was consumed the most with everything on, but still very high with wifi off and mobile data on.
Unfortunately a refurbished phone must be returned within 14 days if there is a problem with it. The remaining time on the 1 year warranty is voided.
just use stock rom DI01package3.tar.md5 and battery is very good for me
KneeDragr said:
Thats total since all time.
So I had the phone all weekend with wifi and mobile data on, then one day with wifi off, then one day with wifi on, mobile data off.
But the battery was consumed the most with everything on, but still very high with wifi off and mobile data on.
Unfortunately a refurbished phone must be returned within 14 days if there is a problem with it. The remaining time on the 1 year warranty is voided.
Click to expand...
Click to collapse
According to the OP, you've had it for 5 days as of yesterday, which leaves you a full week+ to get it swapped again.
KneeDragr said:
So somehow my phone did not like the Froyo update, would not boot after install or even a factory wipe.
So Verizon swapped it for a refurbished one, Ive had it for 5 days.
It had 2.2 installed when I got it. However the phone is almost useless for me now, It wont last a full day with nothing on, no GPS, no WiFi, no mobile data, no apps running, only turning it on once or twice during the day to check things and each time I do the battery draining like crazy!
I used to get 5 days out of my old phone, literally, because I am not a big user. I actually did play with the phone the day after I received it, to personalize it, and I drained 50% of the battery in an hour!
This is the same battery as in my phone, you dont get a new battery with the replacement.
I think its a hardware problem with the phone, but a guy at work says its just the 2.2 update, that it slams the battery.
Im going to take it back to Verizon tomorrow and see what they will do for me. If they wont fix this, I will simply revert back to my old flip phone since it lasts 5 days and cancel my data plan.
Click to expand...
Click to collapse
50% in an hour.. even if u use it the whole time is ridicuoulous.. prob a junk batt.. what are batt temps getting to??
There is a setting in the WiFi area to have the WIFI automatically turn off when the phones screen turns off, you may want to look into it
hongha_222 said:
just use stock rom DI01package3.tar.md5 and battery is very good for me
Click to expand...
Click to collapse
who would actually want to do that.. dude froyo is a million times better.. i get 12-18 hours on heavy use, wifi, data, gps auto rotate all one.. running comm v1.3..
ov c to 1.3
1300-50
1200-50
1000
800
400-50
200-50
100-75
sio schedualer
amazing performance great bat life runz like a dream!!
I just want to report that I've been having similar experiences, and in my case it seems associated with signal strength.
If I'm at home all day (where signal is good, and I'm on wi-fi), my battery life is pretty good. Not as good as it was on 2.1, but acceptable.
But if I'm out driving around, or in a place where the 3G signal is weaker (maybe 2 bars or less, but I haven't really verified that), my phone gets uncomfortably warm in my pocket, and battery usage becomes horrible. I've had the phone drain from full charge to 20% or so in less than two hours.
This problem never happened before I flashed the DL30 Froyo leak. Since then, it has happened on every Froyo ROM I've run, including official ED01 and the community ROM.

"Show low low battery logo" Nexus 7 thinks battery is dead even when fully charged!

"Show low low battery logo" Nexus 7 thinks battery is dead even when fully charged!
I have already got a replacement on order from the Play Store but since I haven't seen any reports on this after plenty of searching I figured I'd describe the issue.
My 16gb Nexus 7 worked pretty much flawlessly for the first several days of pretty light use minus very minimal flicker on occasion. As of two days ago the unit is basically unusable as it randomly but excessively decides that the battery is dead even though it is fully charged. The first several times this happened I wasn't paying attention and I thought it just shut off by itself, but then I started to watch it more closely but it also started happening more and more. As of this morning it will not stay on more than 5 minutes before it audibly notifies a low battery with the messages "Connect Charger" and "Powering down". Sometimes it will give two options "Battery" and "OK" but I was never able to actually get the buttons to respond because it would already be shutting down. Other times it will just show the connect charger and powering down messages with no buttons which is strange, but in either case the device shuts down.
Once I started troubleshooting I figured out a little more information.
Watching the lock screen while it is charging I will see it go from it's (I think) correct charge percent to 0% randomly.
While not charging it will either show a red battery indicator in the notification area or just an empty battery when it decides to shut down
Sometimes it will boot right up and be back up to regular charge level (of course just to shut down again within a few minutes)
Other times it will not boot up and I noticed the error message (almost like a debug prompt mistakenly left in the code) in the upper left corner "Show low low battery logo" + some strange symbol like when you get 100 1-Ups in Super Mario Brothers . Yes the message has the word "low" twice - I guess this is lower than standard low!
Anyway, kinda bummed but since I have not seen any other report of this particular issue I'm hopeful that the replacement will not have the same problem. I'm just hoping I don't get a unit that has some of the other problems being reported so I'm crossing my fingers.
Mine started doing the same this morning
Sent from my LT26i using xda app-developers app
This sounds pretty similar to my problem from another thread. Every time it hits 25% while discharging it dies. Normally I'd say it's just a software calibration issue and fixable by wiping battery stats, but I've wiped several times at 100% and run down to 25% and it still dies.
Do you find that you still get a normal amount of battery life before it dies? It'd help to establish whether this is the battery misreporting, or actually not discharging properly.
* Strangely this time after my N7 had died at 25% I turned it on and it's at 0% battery. It's been charging for ~15min and it still says 0%... When you all first got the device, did you let it run to 0%, or did you charge it right away?
** And now, after almost an hour, it's at 1%. Seems to be charging, but brutally slowly (and I'm using the bundled charger, not PC USB).
omnikai said:
This sounds pretty similar to my problem from another thread. Every time it hits 25% while discharging it dies. Normally I'd say it's just a software calibration issue and fixable by wiping battery stats, but I've wiped several times at 100% and run down to 25% and it still dies.
Do you find that you still get a normal amount of battery life before it dies? It'd help to establish whether this is the battery misreporting, or actually not discharging properly.
* Strangely this time after my N7 had died at 25% I turned it on and it's at 0% battery. It's been charging for ~15min and it still says 0%... When you all first got the device, did you let it run to 0%, or did you charge it right away?
** And now, after almost an hour, it's at 1%. Seems to be charging, but brutally slowly (and I'm using the bundled charger, not PC USB).
Click to expand...
Click to collapse
Yours sounds like a similar but different issue. My N7 dies regardless of how much charge it has. It can have 100% charge and within 5 minutes it will report 0% charge and die. Then when I can get it to boot again it will be back up to 99% charge again. I can't get more than 10 minutes of use before it dies regardless of how much charge it truly has.
omnikai said:
This sounds pretty similar to my problem from another thread. Every time it hits 25% while discharging it dies. Normally I'd say it's just a software calibration issue and fixable by wiping battery stats, but I've wiped several times at 100% and run down to 25% and it still dies.
Do you find that you still get a normal amount of battery life before it dies? It'd help to establish whether this is the battery misreporting, or actually not discharging properly.
* Strangely this time after my N7 had died at 25% I turned it on and it's at 0% battery. It's been charging for ~15min and it still says 0%... When you all first got the device, did you let it run to 0%, or did you charge it right away?
** And now, after almost an hour, it's at 1%. Seems to be charging, but brutally slowly (and I'm using the bundled charger, not PC USB).
Click to expand...
Click to collapse
I'm starting to have this same issue, however mine goes at about 19%. Just turns off. I have also seen the show low battery in white text thing. I have tried calibrating by fully charging then deleting batterystats.bin from data/system and letting it decharge and it still died around there, I'm recharging again to 100 to see what happens this next time I let it go... thought mine was issue free than this happens
Well in case anyone else runs into this, I have no idea what caused this or how I got out of it thinking it was dead at 20%. I tried deleting the stats, reflashed stock and then CM10 and back again, tried a different kernel, and still died at 20 and gave me the "low low battery logo".
I just took it into Gamestop where I got it and started the process for an exchange, so I have another one coming now. Go figure when I got home I plugged it back in, and now this time just like omnikai said instead of being at 20% it was at 0 when I turned it on. Been a while and now and seems to be charging normally so hopefully it will decharge fine.. either way really weird only problem I've had with mine so far
** Just wanted to edit and say its now decharging normally dont know what caused it to spazz out or fix it one of those ghost in the machine android moments
NeoMagus said:
Well in case anyone else runs into this, I have no idea what caused this or how I got out of it thinking it was dead at 20%. I tried deleting the stats, reflashed stock and then CM10 and back again, tried a different kernel, and still died at 20 and gave me the "low low battery logo".
I just took it into Gamestop where I got it and started the process for an exchange, so I have another one coming now. Go figure when I got home I plugged it back in, and now this time just like omnikai said instead of being at 20% it was at 0 when I turned it on. Been a while and now and seems to be charging normally so hopefully it will decharge fine.. either way really weird only problem I've had with mine so far
Click to expand...
Click to collapse
Replacement N7 seems to be fine thusfar...
Apparently, somebody in StackExchange is having the same issue as well:
http://android.stackexchange.com/questions/27222/nexus-7-system-error-show-low-battery-logo
if anyone else gets this, try disconnecting the battery and then re connect and see if that fixes it. i had same type of issue on viewsonic g-tab and that was the required fix.
Mine did it at 10%, calibrated the battery and im getting truly awesome battery life 2 full days without a charge
Sent from my SAMSUNG-SGH-I717 using xda premium
---------- Post added at 02:54 PM ---------- Previous post was at 02:52 PM ----------
This is the app
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
You need to be rooted
Sent from my SAMSUNG-SGH-I717 using xda premium
Same problem here when battery reaches 24% whole tab dies...
Did someone fixed it?
egomezmorales said:
Mine did it at 10%, calibrated the battery and im getting truly awesome battery life 2 full days without a charge
Sent from my SAMSUNG-SGH-I717 using xda premium
---------- Post added at 02:54 PM ---------- Previous post was at 02:52 PM ----------
This is the app
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
You need to be rooted
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
While this reply is late to the game, it needs to be pointed out that such apps are 100% snake oil and do not calibrate the battery. They are based upon gross misinformation and any dev that tells you that clearing batterystats.bin has any effect on battery life or reported battery charge clearly doesn't know how Android works.
Sent from my Galaxy Nexus using Tapatalk 2
Beekhouse said:
Same problem here when battery reaches 24% whole tab dies...
Did someone fixed it?
Click to expand...
Click to collapse
Have you fixed this yet cos mine does the same?
I had been having the same problems that everyone described: would suddenly die at 25% and wouldn't turn back on unless I gave it a charge for a bit and then held the power button down for a while.
For the last 2 weeks, I've been charging it only with the stock charger and that seems to have fixed it. Previously I would charge with any charger I had around.
Not sure if it's a permanent fix but it's working now (I've taken it down to 4% before charging it back up).
AdamK123 said:
I had been having the same problems that everyone described: would suddenly die at 25% and wouldn't turn back on unless I gave it a charge for a bit and then held the power button down for a while.
For the last 2 weeks, I've been charging it only with the stock charger and that seems to have fixed it. Previously I would charge with any charger I had around.
Not sure if it's a permanent fix but it's working now (I've taken it down to 4% before charging it back up).
Click to expand...
Click to collapse
I only use the stock charger on mine but after this happened so often I tried another one and battery charged OK but then kept blipping from say 50% to 54%, went bed with it at 49% and this morning dead again. Charged it again today on stock charger and waiting to see what happens.
Sorry all for this bump.
I just got this same issue tonight on stock, unrooted nexus 7 16gb and I only use the stock charger, I let it die through battery and then when I charged it amend turned it on, all these problems happened.
One symptom that hasn't been mentioned is that the clock is set back to January 1st 1am.
I managed to get it to start without turning off by holding the power button until the Google logo showed twice, at the moment it's on but charging.
Hope this doesn't become a problem again in the future.
NeoMagus said:
Well in case anyone else runs into this, I have no idea what caused this or how I got out of it thinking it was dead at 20%. I tried deleting the stats, reflashed stock and then CM10 and back again, tried a different kernel, and still died at 20 and gave me the "low low battery logo".
I just took it into Gamestop where I got it and started the process for an exchange, so I have another one coming now. Go figure when I got home I plugged it back in, and now this time just like omnikai said instead of being at 20% it was at 0 when I turned it on. Been a while and now and seems to be charging normally so hopefully it will decharge fine.. either way really weird only problem I've had with mine so far
** Just wanted to edit and say its now decharging normally dont know what caused it to spazz out or fix it one of those ghost in the machine android moments
Click to expand...
Click to collapse
I am currently having the 20% problem. Did your tablet reaminworking normally since the self correction?
A Probable solution to the nexus 7 dying at 15% + charge
dbstrat said:
I have already got a replacement on order from the Play Store but since I haven't seen any reports on this after plenty of searching I figured I'd describe the issue.
My 16gb Nexus 7 worked pretty much flawlessly for the first several days of pretty light use minus very minimal flicker on occasion. As of two days ago the unit is basically unusable as it randomly but excessively decides that the battery is dead even though it is fully charged. The first several times this happened I wasn't paying attention and I thought it just shut off by itself, but then I started to watch it more closely but it also started happening more and more. As of this morning it will not stay on more than 5 minutes before it audibly notifies a low battery with the messages "Connect Charger" and "Powering down". Sometimes it will give two options "Battery" and "OK" but I was never able to actually get the buttons to respond because it would already be shutting down. Other times it will just show the connect charger and powering down messages with no buttons which is strange, but in either case the device shuts down.
Once I started troubleshooting I figured out a little more information.
Watching the lock screen while it is charging I will see it go from it's (I think) correct charge percent to 0% randomly.
While not charging it will either show a red battery indicator in the notification area or just an empty battery when it decides to shut down
Sometimes it will boot right up and be back up to regular charge level (of course just to shut down again within a few minutes)
Other times it will not boot up and I noticed the error message (almost like a debug prompt mistakenly left in the code) in the upper left corner "Show low low battery logo" + some strange symbol like when you get 100 1-Ups in Super Mario Brothers . Yes the message has the word "low" twice - I guess this is lower than standard low!
Anyway, kinda bummed but since I have not seen any other report of this particular issue I'm hopeful that the replacement will not have the same problem. I'm just hoping I don't get a unit that has some of the other problems being reported so I'm crossing my fingers.
Click to expand...
Click to collapse
I recently started having the same problem with my 2 month old rooted Nexus 7 (wifi only) . It was dying at about 19% - 23% charge . Tried doing the battery recallibration at 100% charge, even wiped the device clean and flashed the Jellybean 4.2 factory image but it didn't work.
I talked with the ASUS service center guys to get it fixed, and created a sort of guest user so that I won't have to disconnect my accounts. After that my problem seems to have been fixed. I discharged it to about 4% and then put it to charge, it's charging properly now so I am hoping the problem has been fixed.
I am not sure whether this would work for everybody, but I guess it's worth a try.

[Q] Nexus 4 Instant Battery Drain/Shut-Off

Hi
I have recently started having a problem with what I presume to be the battery of my Nexus 4. It seems to have started suddenly about a week ago, though was working absolutely fine before. I don't think it was due to any specific app having been installed. I have also done a factory reset on it, but that didn't solve the problem.
Basically, the battery will discharge to about 75%. The phone will then suddenly switch off; turning the phone back on, it simply shows the battery to be fully depleted and switches off. If I plug it into a power source, the phone turns back on and begins charging, from 0%, though seems to suddenly fully charge it within about half an hour.
My phone has not been rooted.
I would really appreciate any help/advice on this issue as it is incredibly frustrating having to have my phone almost permanently on charge.
I have attached two screenshots of the battery usage graph.
Thanks!
bab88 said:
Hi
I have recently started having a problem with what I presume to be the battery of my Nexus 4. It seems to have started suddenly about a week ago, though was working absolutely fine before. I don't think it was due to any specific app having been installed. I have also done a factory reset on it, but that didn't solve the problem.
Basically, the battery will discharge to about 75%. The phone will then suddenly switch off; turning the phone back on, it simply shows the battery to be fully depleted and switches off. If I plug it into a power source, the phone turns back on and begins charging, from 0%, though seems to suddenly fully charge it within about half an hour.
My phone has not been rooted.
I would really appreciate any help/advice on this issue as it is incredibly frustrating having to have my phone almost permanently on charge.
I have attached two screenshots of the battery usage graph.
Thanks!
Click to expand...
Click to collapse
If you are on stock, try flashing the stock image(4.2 or 4.3 up to you) there's plenty of threads on here thatll guide you thro the process.
I've had the same issue about three times, during the first week of using my Nexus 4 (about half a year ago). I've already had my mind made up to RMA it, but waited for it's shut-off to happen once more to collect some evidence of this problem and... it never happened again. I'm pretty confident that I didn't install anything that might have helped (I only installed BetterBatteryStats to check the instant drain, but really doubt it could change anything, it's just statistics), and I've never factory wiped the phone's data yet.
I've been searching for answers around the internet back in May, but never found anything of value, so my only advice is... wait a little, and if it doesn't get better itself return it to the merchant. My previous HTC phone was restarting almost everyday from the first day I bought it, until a month later I returned it for warranty repairs and after they changed almost all internals of the phone it never crashed again (till today, since I still use it as GPS and media player when running).

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