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Is anybody seeing heavy battery loss during standby mode?
On average my TF is losing between 3.5 and 5% battery in standby mode. I have done a few tests with and with out airplane mode and it does not change.
I currently have an RMA setup with ASUS but I dont want to have to send it back and wait 14 days, so I wanted to reach out here first.
Thanks in advance,
Brandon
Every device I've ever owned has lost power during standby. That's the tradeoff. Otherwise, you could, you know...turn it off?
Windows has that nice "hibernate" hybrid.
It's totally not worth an RMA...don't let your OCD win.
There are a few processes that run in the background like Android OS, WiFi, keyboard etc. It needs to be reactive to certain signals so it can't be off completely. The iPad has amazing stand-by times but I don't know why. I just saw it when I borrowed one for a day from a friend.
I would NOT RMA my device unless it's a significant drop in battery life (>10%/h); it's just the way it is mate!
But what I realized is after I rooted, installed SetCPU and set the governor to ondemand the battery life has increased significantly. It idles at 216MHz now.
mine doesn't have a great standby time either, pretty bad actually when you compare it to my xoom. however its an issue that should be fixed with a software update and it shouldn't require an rma.
Sent from my ADR6400L using Tapatalk
Check if you have your Wifi on sleep also?? Depending on number of applications that you use for updating it might be using your battery.
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
I just turn on airplane mode when I know it is going to sit, and it burns about 1% an hour.
wynand32 said:
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
+1 on this. Looking forward to the updates
wynand32 said:
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
Is there an adjustment for the Wifi and/or app settings. In general the second or third largest power consumer in these devices is the radios. The radio needs to be powered up whenever a connection needs data. This can be for keep alive messages that verify the existence of a wifi connection to an access point, or from an app such as gmail, calendar, etc. checking for new data. In any case there may be settings that allow one to decrease the frequency of these operations.
ssj4vegita2002 said:
I just turn on airplane mode when I know it is going to sit, and it burns about 1% an hour.
Click to expand...
Click to collapse
FYI, I did a few tests with airplane mode on and I was still losing around 3.5%-5% battery life.
I did do a few more tests, and my most recent test I found interesting.
I use my TF as usual and had a few applications running, I then turned off the screen and let it sit for an hour and 4% battery life was used.
Then I powered down my TF fully, then I powered it back up and turned off the screen. (Currently the TF is up and running but no applications have been opened aside from backround apps Syncing).
I put the TF into standby (turned off the screen) at 1:37 am and I had 53% battery life.
I checked on the TF in the morning at 8:51am, and I had 51% battery life.
So in just over 7 hours my TF only used 2% battery life in standby which is a very acceptable range.
Conclusion, what ever apps we are opening and using under normal use are not being fully closed out, and are running in the backround, not the backround services as per the airplane mode test.
I will do a few more tests tommorrow, I hope this helps and I look forward to others feedback!
Brandon
Brandon - Please check out yours with wifi set to turn off when the screen is off. In all of my testing (similar to yours), that made the difference between great standby performance (<.5%/hour) and not-so-great (3.5%/hour or more). Nothing else seemed to matter, including manually turning off just about every app that normally runs in the background and verifying that they stayed off.
Hopefully soon Asus will also fix the battery stats bug so that we can see what apps/system components are actually using power on standby. Or they'll just fix wifi so that it sleeps as it should.
Sent from my Transformer TF101 using Tapatalk
I have already done the tests with WIFI turned off and also with the TF in Airplane Mode.
So far the only time I have gotten great standby time was when I rebooted my TF and did not open any applications. (WIFI was on FYI)
Brandon
so, the last two night i've gotten great result from stand by mode. The first night i went and killed couple of programs, before putting in AP mode for the night. 12:45 am till 9:00 am from 78% 75%. Last night at 12:00am had 34% this morning at 8:00 it dropdown to 32%.
I took a screenshot of the battery usage after waking up in the morning. Wifi was left on with the sleep policy set to sleep on screen off. It seems to turn back on intermittently but the awake bar seems to happen more often the longer it is in sleep. Is that meant to happen? What does awake signify? That the screen is on?
background data probably running in the background
like weather updates to it to refresh every 4 hours or something
its weird though, towards the right theres like 2 times where the device is awake for long periods of time :S
brandonpaz said:
Is anybody seeing heavy battery loss during standby mode?
On average my TF is losing between 3.5 and 5% battery in standby mode. I have done a few tests with and with out airplane mode and it does not change.
I currently have an RMA setup with ASUS but I dont want to have to send it back and wait 14 days, so I wanted to reach out here first.
Thanks in advance,
Brandon
Click to expand...
Click to collapse
Would you try "Task killer" for decreasing battery loss?
My battery seems to be dying alot quicker now I have the dock. Hopefully a new firmware will come out that'll lower the battery consumption of the dock when its in standby.
After using my transformer for a couple of months, the battery life amazed me the most. With about 9-10 hours battery and a couple of days sleep time which was very convenient. Also charging time was very fast.
But after updating to 3.2, I've noticed that when I leave the transformer on sleep like I usually do after using it, it would drain to 0% by the end of the day when usually it would only drain like 1-5% before updating it. I checked the processes and it doesn't look like anything out of the ordinary, and I haven't installed any new applications since the 3.2 update.
Anyone else having this kind of problem?
I have the same problem
Sent from my Transformer TF101 using xda premium
I came online to search for the exact same problem if anyone else had. And seems I am not the only one.
Now do you have the keyboard dock as well or just the tablet itself?
My case is that when I have both (tablet and keyboard) fully charged at 100% it will drain out in 18-24 hours whether I use it or not.
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Reapman said:
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Click to expand...
Click to collapse
Going to give this a try, as Im having this issue as well.
I found that putting the device into airplane mode stopped the battery drain, even though I had bluetooth disabled already, and WiFi policy was set to off when screen is off. Will see how it goes with "Use Wireless Networks" disabled in location settings.
Alternatively, I may write a small app that puts the device into airplane mode when the screen has been off for more than a couple minutes (and disables airplane mode when the screen is turned on)
I have this issue too.
I had mine docked into the keyboard. left it closed and went to work.
When I came back home late, I saw the tablet with 90+% battery and the dock at almost 0%.
Might be the same issue as you guys.
What I did is set the wifi policy to off when screen off.
and I tried again to leave it in the same situation.
Charged it full at night. left it overnight, woke up went to work, and came back. and I checked. Both are still way above 90%.
It makes a big difference for me. =)
I got the battery at 66% this morning and now after no use it was at 18%! I was about to throw my tf out of the window!
Ciela said:
Going to give this a try, as Im having this issue as well.
I found that putting the device into airplane mode stopped the battery drain, even though I had bluetooth disabled already, and WiFi policy was set to off when screen is off. Will see how it goes with "Use Wireless Networks" disabled in location settings.
Alternatively, I may write a small app that puts the device into airplane mode when the screen has been off for more than a couple minutes (and disables airplane mode when the screen is turned on)
Click to expand...
Click to collapse
I have done all this yet the drain continues. When I compare the battery drain of my tf101 with my HP touchpad, there is simply no comparison. There is virtually no drain even if I leave my touchpad uncharged for more than a day. On the other hand, my tf discharges battery when closed with the dock as if I am using it.
What gives?
Factory reset helped mine. 14 hours 81% with 3 hours of straight use.
Sent from my Transformer TF101 using xda premium
Reboot
Sent from my Transformer TF101 using xda premium
I got a huge battery drain today again, got my battery from 57 to 3 on the dock and from 100 to 88 on the tablet with less then 10 hours, just for comprasion I got only 7% down on the dock over night (like 9-10 hours) just this morning. when i checked battry use today I saw 63% used by wifi, this wasn't like this in the morning and all I did is just checked my email and sent it back to sleep, that's annoying as hell, i barely use it and it keeps on dying really fast..
Same here indeed the wifi policy set to never sleep-->Big drain wifi policy set to when screen off-->drain very little
Sent from my Transformer TF101 using Tapatalk
Reapman said:
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Click to expand...
Click to collapse
same here,went from extreme drain to normal
It doesn't seem like the power button on the tablet works as well as the one on the dock. If docked, I only lose about %1 per hour.
I've noticed that if I use the one on the tablet, the screen will go dark, but sometimes the tablet doesn't sleep (verified via the battery status). I have the screen set to never timeout and the Wifi set to turn off. Bluetooth set to off.
The tablet lock button seems to be the most reliable and I always get about %1/hour drain when I use that button. Might be just a coincidence.
Is there are "real" sleep mode that we can access? It seems like sleep mode doesn't really sleep, it just shuts down certain items (the screen, bluetooth/wifi). I'm talking about like an S3 state where power is cut to the processor and the only the memory is keep.
If there is a real sleep, it seems like the device has a choice. I want a "Go to the Fok to Sleep" button!
Reapman said:
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Click to expand...
Click to collapse
I did this and it worked for about an hour (cpu spy) but then something woke the tablet and it never went back to deep sleep and wiped out the dock battery in about 4 hours. If I turn wifi off standby life is good. However I woud really like to keep the wifi on and get good battery life.
This working consistently for you?
I was ready to replace my dock. This worked like a charm. I went from 1-5% per hour in sleep to <.5% per hour.
I just figured it out this week. I was running WEP at home and this prevents both of my android devices from sleeping like they should. I know I shouldn't be running WEP but neighbor is wide open so I was too lazy to change. Open and WPA allowed sleep on both devices about 80% of the time in standby and big improvement in battery life. Still keeping my eye on it but difference was immediately noticeable with cpu spy.
Sent from my SAMSUNG-SGH-I997 using XDA App
After further review it appears it wasn't WEP. All was well until I put my laptop and computer back on wifi then both infuse and transformer had inconsistent sleep. I disconnected computers and both android devices sleep again. Updated my router firmware but no improvement. Any ideas?
Update: I believe my router is doing this. Works fine until I connect other wireless devices then drains. There are sporadic reports of this in other forums for dlink dir-655.
Sent from my SAMSUNG-SGH-I997 using XDA App
After 3.2.1 or possibly the Maps update, my wifi stopped powering on after sleep. It would start and stop, even airplane mode would not break the cycle. Frustrated, I turned the location setting back on, reinstalled maps and left it undocked. Woke up this morning. 98% battery. Arg. WTF is going on? This is maddening. The dock drain seems to fluctuate between 8-40% in 8 hours and I get 2% undocked? Is the dock the issue (that would suck).
I'm docking it again tonight. Maybe it was reinstalling maps? This is really frustrating. With 3.2.1 the browser is stable, Skype video now is going. This is the last issue with TF before I can strongly recommend it to my friends.
I am getting some nasty battery drain now too. Approx 30% overnight with wifi off. Im very happy that skype works though.
Sent from my ADR6350VW
My build number is HTK75.US_epad-8.6.5.13-20110925, I have both a docking station and a tablet.
When I have the tablet plugged into the Dock, I still have the docking station drain issue. If I leave the screen turned off with the dockingstation plugged in, I get about 1 day of use before the battery is drained (This is with out using the tablet at all).
If I have them seperated and I do not use the tablet, the tablet alone will last for 3-4 days on standby (the screen off).
ASUS is recommending RMA, does anybody here have feedback before I send in my tablet and Dock?
Thanks in advance,
Brandon
brandonpaz said:
My build number is HTK75.US_epad-8.6.5.13-20110925, I have both a docking station and a tablet.
When I have the tablet plugged into the Dock, I still have the docking station drain issue. If I leave the screen turned off with the dockingstation plugged in, I get about 1 day of use before the battery is drained (This is with out using the tablet at all).
If I have them seperated and I do not use the tablet, the tablet alone will last for 3-4 days on standby (the screen off).
ASUS is recommending RMA, does anybody here have feedback before I send in my tablet and Dock?
Thanks in advance,
Brandon
Click to expand...
Click to collapse
Had the same issue. It is not a hardware issue, RMA won't help. I'm running revolution HD and the problem is fixed. I now drain about 2-3% in 8 hours in standby.
i have the same problem running Prime 2.0.4. Been debating calling support, but i'll give revolution a try tomorrow and see what happens.
Hard reset cured it for me.
I guess you already have tried this:
1. Click on <Apps> on the home screen
2. Click on <Settings>
3. Click on <Screen>
4. Make sure that <MobileDock Battery saving mode> is ticked
And after this make sure to turn off the screen with the power button, otherwise it may not go to deep sleep, it is definitely a software bug, which I'm not sure why they don't fix it (I have a B80, tablet+dock)
godsosall said:
I guess you already have tried this:
1. Click on <Apps> on the home screen
2. Click on <Settings>
3. Click on <Screen>
4. Make sure that <MobileDock Battery saving mode> is ticked
And after this make sure to turn off the screen with the power button, otherwise it may not go to deep sleep, it is definitely a software bug, which I'm not sure why they don't fix it (I have a B80, tablet+dock)
Click to expand...
Click to collapse
Yeah I have already tried this but Thanks for the info.
I have the B30 Tablet and B50 Dock.
Brandon
brandonpaz said:
Yeah I have already tried this but Thanks for the info.
I have the B30 Tablet and B50 Dock.
Brandon
Click to expand...
Click to collapse
You need to send in the Dock to get ASUS to change the circuit board. The earlier docks are able to wake-up the tablet by pressing on any buttons on the keyboard. If you can do that with yours, then you need to RMA it for the issue to even be remotely fixed.
I've got battery saving mode enabled and pressing a key on my dock wont wake up the tablet, but when i put it to sleep , both batteries are completely drained within 48 hrs. Separate, they will both last all week.
if you guys are interested, i may point your attention to this thread (pages 22 and 23), where i have posted that i got my transformer back from repairs with successful results
http://forum.xda-developers.com/showthread.php?t=1287799
the revolution rom seems to be working great, but i'd love to be able to use prime and not have the battery drain. i'm wondering if it is a hardware issue, but revolution's clocking settings overcome that by reducing the cpu while its asleep, and prime doesnt do that by default.
I might try prime with some different setcpu profiles to see what happens..
from the points discussed I would say that although it might not be caused by a software issue, at least it should be fixable with software. It's very simple: IF (AND (any keyboard key pressed=TRUE, deep sleep mode=TRUE),IGNORE,...)
I'm having the same problem and it's pretty annoying. I also noticed that after the tablet turns off I have no access to the keyboard until I undock it and then dock it again.
frosty5689 said:
You need to send in the Dock to get ASUS to change the circuit board. The earlier docks are able to wake-up the tablet by pressing on any buttons on the keyboard. If you can do that with yours, then you need to RMA it for the issue to even be remotely fixed.
Click to expand...
Click to collapse
I agree that there was a hardware issue with the Dock, I exchanged my dock for a newer model the first time that they had the sleep mode issue some time ago. Changing the dock fixed the sleep mode issue at that time. They broke the sleep mode again with the last firmware update, so I don't believe the fix is just to replace the dock, because I have the dreaded sleep mode issue AGAIN!
There seems to be a problem with the latest firmware that affects the handover between the AC adapter and the dock batteries. The transformer will not go into deep sleep mode if it has been connected to the charger (as determined by cpuspy) giving ongoing dock battery drain.
If I reboot the device after the charger is disconnected, then deep sleep mode works as intended and battery life is once again awesome. This may be due to an application conflict of some sort, but as yet I am unable to track down the offending app.
Tldr; Reboot after disconnecting from AC to reenable deep sleep mode
Sent from my GT-I9100 using xda premium
KevinLuong said:
There seems to be a problem with the latest firmware that affects the handover between the AC adapter and the dock batteries. The transformer will not go into deep sleep mode if it has been connected to the charger (as determined by cpuspy) giving ongoing dock battery drain.
If I reboot the device after the charger is disconnected, then deep sleep mode works as intended and battery life is once again awesome. This may be due to an application conflict of some sort, but as yet I am unable to track down the offending app.
Tldr; Reboot after disconnecting from AC to reenable deep sleep mode
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Does setting your screen brightness to AUTO make a difference? (vs. manual setting a level).
Bob Smith42 said:
Does setting your screen brightness to AUTO make a difference? (vs. manual setting a level).
Click to expand...
Click to collapse
Doesn't seem to make a difference - my transformer is set on AUTO brightness by default anyway. It definitely seems to be related to the newer firmware - I had no problems with battery drain under the previous firmware so it is fairly unlikely to be a hardware issue.
Well, the other day I did a shed load of app updates and the battery has been draining over 5% an hour in standby mode since. CPU spy shows that it isn't deep sleeping. Looked at Advanced Task Manager and Maps was constantly restarting every time I stopped it. I've now force stopped Maps and the battery problem seems to have gone away. If it works I'll restart Maps and see what happens.
Well I bit the bullet, rooted my transformer and installed Prime. It's been almost 24 hours and the battery level has barely moved. Let's hope that it stays that way.
Well, after further testing, it wasn't Maps that was causing my battery drain problem but Samsung's own app, MyNet. I force stopped it (I've never used it) and everything seems to be okay.
KevinLuong said:
There seems to be a problem with the latest firmware that affects the handover between the AC adapter and the dock batteries. The transformer will not go into deep sleep mode if it has been connected to the charger (as determined by cpuspy) giving ongoing dock battery drain.
If I reboot the device after the charger is disconnected, then deep sleep mode works as intended and battery life is once again awesome. This may be due to an application conflict of some sort, but as yet I am unable to track down the offending app.
Tldr; Reboot after disconnecting from AC to reenable deep sleep mode
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
this helped me.
every time my tablet is docked the battery drains like crazy and both units are dead after one full day and night even sitting idle.
i tried undocking the tablet and rebooting the tablet and leaving it idle and that worked and helped maintain battery life in the tablet. only lost 4% over night
but i still wanted to use my dock.
i charged the dock and tablet together and then after i unplugged the AC cord from the dock, i performed a reboot and then started up CPUSPY and closed the tablet clamshell.
woke up this moning and only lost 4% over night.
while im still jealous that my ipad2 will only lose 4% over a 4 day period staying idle, im still happier that i only lost 4% over night from dock and tablet together compared to being dead over day/night idle.
so to recap, if you have tablet docked and charging. remove the charger and then reboot your system and then your battery drain should be gone. if you dont reboot tablet and dock after removing AC power then your system will drain battery all day and never enter deep sleep.
thanks!
I have now had this problem twice this week. I have read other posts that sound similar but the issue seems different.
Twice I have shut down my phone at night. With FULL battery. The next morning, I could not turn the phone on. It would vibrate when I hit power button but not come on at all.
Both times I plugged it in and saw that the battery was COMPLETELY drained. I have seen threads where people post about some battery drain overnight, but this was an entire drain, with the phone off.
This is a major issue obviously as both times the next morning I was on the go and had zero battery life.
Any ideas of what this can be? Does it sound like a physical battery issue? Is the phone maybe not actually shutting down and getting caught in some battery draining process?
Help please.
The best way to test the shutdown issue is pulling the battery after it seems to shut down. Try pulling it for a few seconds and replacing it, but leaving the device off. If that produces the same result, try leaving the battery out overnight.
This seems to only be happening if I leave the battery in the phone.
It happened again last night. Complete drain.
Im not sure but I feel like there may have been a buzz as it turned itself off (not sure if its always there need to experiment further). I picked it up and hit buttons to make sure it wasnt just in standby. It wasnt. it was OFF.
Next morning, no battery.
Any ideas? Id love some help as this is becoming a pretty big problem for me.
Have you ruled out a hardware issue already? If not then call the carrier.
Sent from my I727
lirong said:
This seems to only be happening if I leave the battery in the phone.
It happened again last night. Complete drain.
Im not sure but I feel like there may have been a buzz as it turned itself off (not sure if its always there need to experiment further). I picked it up and hit buttons to make sure it wasnt just in standby. It wasnt. it was OFF.
Next morning, no battery.
Any ideas? Id love some help as this is becoming a pretty big problem for me.
Click to expand...
Click to collapse
This actually happened to me a night before last as well - twas the first night running Smooth Ice 5.1. Are you on that by chance? Not knowledgeable enough to really comment on whether or not that could be it, but it'd be something to eliminate.
I switched to the new leak last night and the battery life has been excellent off charger all day, for what it's worth.
I am on stock everything.
I am still trying to diagnose the problem.
It seems that when I Power Off, occasionally at the end of the power done I will get a Vibrate. When that happens, I think it is draining while switched off.
When the Power Down happens and I dont feel the vibrate, so far I have not experienced the drain.
Does that perhaps give anyone ideas about what might be happening? Some kind of locked in Process or App? Any likely culprits? Any diagnostics that can show, if it does drain, what drained it?
In the past when it drained I plugged it in to charge and checked battery stats, but it showed Display as the largest consumer. Does the About Battery stats reset each time you plug in and start charging?
lirong said:
I am on stock everything.
I am still trying to diagnose the problem.
It seems that when I Power Off, occasionally at the end of the power done I will get a Vibrate. When that happens, I think it is draining while switched off.
When the Power Down happens and I dont feel the vibrate, so far I have not experienced the drain.
Does that perhaps give anyone ideas about what might be happening? Some kind of locked in Process or App? Any likely culprits? Any diagnostics that can show, if it does drain, what drained it?
In the past when it drained I plugged it in to charge and checked battery stats, but it showed Display as the largest consumer. Does the About Battery stats reset each time you plug in and start charging?
Click to expand...
Click to collapse
It always vibrates when you power off, at least mine does.
The battery stats reset after a full charge has been achieved.
I have no idea what would be discharging it while off besides a bad battery.
Put the BetterBatteryStats application on there. The stock Battery Use GUI interface that is built into the firmware will not show you details enough, it will just show what application used the cpu for X amount and caused the battery to go down X amount.
Put BetterBatteryStats on there to find out what is causing the phone to get drained so quickly. Seems like its not going in deep sleep mode and there is some partial wakelock that is keeping the phone from going into deep sleep. That app will tell you what service or application is holding the largest wakelocks and amount of time it does it for. This helps to determine the issue. Without this, you are just speculating on the problem with the built in Battery Use stats/graph in the Status screen.
Dixit
dixit said:
Put the BetterBatteryStats application on there. The stock Battery Use GUI interface that is built into the firmware will not show you details enough, it will just show what application used the cpu for X amount and caused the battery to go down X amount.
Put BetterBatteryStats on there to find out what is causing the phone to get drained so quickly. Seems like its not going in deep sleep mode and there is some partial wakelock that is keeping the phone from going into deep sleep. That app will tell you what service or application is holding the largest wakelocks and amount of time it does it for. This helps to determine the issue. Without this, you are just speculating on the problem with the built in Battery Use stats/graph in the Status screen.
Dixit
Click to expand...
Click to collapse
He is talking about when his phone is powered off.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
xcrazydx said:
He is talking about when his phone is powered off.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
Damn, then disregard my post. Thanks for clarifying it.
Dixit
Something else I noticed...
Over the last few data, sometimes when I power down the phone, it goes through the powering down process usual, but as soon as its done, the phone vibrates and powers right back on...
Anyone experience this or an idea why that would happen?
Just a thought; If I'm charging my phone with a generic charger (500 mA) and shut it off, it will reboot.
If I'm charging with either the factory wall charger or a 12 volt that triggers AC charge it won't.
Sent from my SAMSUNG-SGH-I727 using XDA
The reboot happens when I shut down and am not plugged in to a charger at all....
My galaxy S has been doing this too lately (loses all charge when off overnight). It always buzzes on shutdown.
One thing that mine has is a problem with the usb port, it slowly stopped working and now I can't charge it anymore through the port. I'm wondering if there is a physical short there that is causing the battery to drain. Possibly you have something similar going on, or a short elsewhere in the system.
I've noticed that you cannot shut the phone down when charging from certain chargers too, especially in the car. Very annoying.
Bump
Hey guys,
Im still having this issue and wanted to hear if there is a known fix or solution?
Honestly, the severity of battery drain you're describing sounds lije more of a hardware issue than anything else. I would contact yoir carrier as mentioned above. Beyond that, trying out a custom ics like sky or embryo might be your best bet if you prefer the tw interface. Im on embryo 5.1 right now and am experiencing better battery health and longevity than ever before with the skyrocket. But the issue does sound like a bad battery.
Sent from my SAMSUNG-SGH-I727 using xda premium
Same exact issue, but I have the t-mobile version.
Very weird!
fuzzie said:
Same exact issue, but I have the t-mobile version.
Very weird!
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Warranty
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
This happened to me on one of my i777s.
The phone would even not boot up. It will just vibrate. Turns out the battery was bad. Changed the battery. It was still the same.
Then tried another charger, same thing happened.
So then I changed the whole charging port part in the phone.
Voila! Phone worked like a charm.
So if you have warranty change the phone. If not change the charging port. At least in my case.
I came to a conclusion that even the battery went bad because of the bad charging. Might be a coincidence too.
zcexve said:
This happened to me on one of my i777s.
The phone would even not boot up. It will just vibrate. Turns out the battery was bad. Changed the battery. It was still the same.
Then tried another charger, same thing happened.
So then I changed the whole charging port part in the phone.
Voila! Phone worked like a charm.
So if you have warranty change the phone. If not change the charging port. At least in my case.
I came to a conclusion that even the battery went bad because of the bad charging. Might be a coincidence too.
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Click to collapse
I have 3 S2 phones that I bought as defect and played around with. Two I could fix but I could not resolve the battery issue on the third phone like by buying a brandnew USB charger part (and trying the ones from the other 2 phones. It has nothing to do with the ROM or anything software either. I narrowed it down to be an issue on the actual mainboard. The weird thing is that the battery discharges way faster when the phone is turned off than when it's in use.
I noticed that the charging rate was abysmal when charging from a usb port. So I looked to see if the phone was sleeping while charging. CPU spy says it doesn't (both wall charger and usb port). Is this normal? (i.e. does every android phone do this?). I'm thinking if it was sleeping it might charge faster since it wouldn't be using so much electricity.
UPDATE: Using current widget, I see that the phone is getting ~150-250mA while charging via usb port. I'm pretty sure a usb port puts out about 500mA, which means about 1/2-2/3 of the current is being consumed by the phone not sleeping. No wonder it takes forever for the phone to charge via usb. All my previous phones charged pretty fast via usb.
typci said:
I noticed that the charging rate was abysmal when charging from a usb port. So I looked to see if the phone was sleeping while charging. CPU spy says it doesn't (both wall charger and usb port). Is this normal? (i.e. does every android phone do this?). I'm thinking if it was sleeping it might charge faster since it wouldn't be using so much electricity.
UPDATE: Using current widget, I see that the phone is getting ~150-250mA while charging via usb port. I'm pretty sure a usb port puts out about 500mA, which means about 1/2-2/3 of the current is being consumed by the phone not sleeping. No wonder it takes forever for the phone to charge via usb. All my previous phones charged pretty fast via usb.
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Hi, Are you using a custom ROM? There is an option in my custom ROM (ARHD 6.7.0) to stay awake while charging, which can be checked/unchecked under Settings -> Develop Option menu.
It depends on the PC. The MAX current is 500mA but might be less, hence some USB disks have an additional USB connector to get more power. Mind you if it's a reasonably new PC it should be 500mA.
The mains charger should have a rating on it, hopefully 1000mA, try that and check in CurrentWidget. Also bear in mind that the charging current will also tail off as it gets close to being fully charged.
Have you ticked un-ticked the box "No Log in Charge" and also ticked "Force Log in Sleep Mode".
If you click on the battery graph in setting does it show the phone Awake 100% or does it have some sleep periods ?
EDIT:
Are you looking at the figures from the log file or the widget on screen ?
I had a quick look at mine (unfortunately I can't be certain which was mains or USB from PC as the phone was on both randomly.
Anyway max I saw was ~900mA charging the tails off as expected the closer it gets to 100%. Seems to start dropping the charging current 900mA @ ~60%, 150mA @~80% then close to 90% it's dropped to 23mA !!
EDIT2:
I know when I was using CM7 the ROM purposely showed fully charged at 90% to avoid overcharging and destroying the LI-Ion battery. It would continue to charge fully to 100% but at a much reduced rate.
---------- Post added at 01:40 PM ---------- Previous post was at 01:37 PM ----------
jyo1 said:
Hi, Are you using a custom ROM? There is an option in my custom ROM (ARHD 6.7.0) to stay awake while charging, which can be checked/unchecked under Settings -> Develop Option menu.
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Are you sure that's not just to keep the screen on while charging ?
typci said:
I noticed that the charging rate was abysmal when charging from a usb port. So I looked to see if the phone was sleeping while charging. CPU spy says it doesn't (both wall charger and usb port). Is this normal? (i.e. does every android phone do this?). I'm thinking if it was sleeping it might charge faster since it wouldn't be using so much electricity.
UPDATE: Using current widget, I see that the phone is getting ~150-250mA while charging via usb port. I'm pretty sure a usb port puts out about 500mA, which means about 1/2-2/3 of the current is being consumed by the phone not sleeping. No wonder it takes forever for the phone to charge via usb. All my previous phones charged pretty fast via usb.
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You cant get deepsleep while charging, thats based on my experiences, but maybe i am wrong, cause i dont use cpuspy for long time,.
Sent from my HTC Sensation Z710e using Tapatalk 2
jyo1 said:
Hi, Are you using a custom ROM? There is an option in my custom ROM (ARHD 6.7.0) to stay awake while charging, which can be checked/unchecked under Settings -> Develop Option menu.
Click to expand...
Click to collapse
On stock Europe 3.33 with custom kernal: [Kernel]Sense ICS(v007_r2)OC~1.73GHz/UV/ZRAM/Intellidemand/Power Saving[Jun-13]
http://forum.xda-developers.com/showthread.php?t=1216197&highlight=fast+charge
I didn't turn on the force fast charge because I didn't know what it was. Now that I know, I might turn it on.
Also, stay awake while charging is not checked.
gol_n_dal said:
It depends on the PC. The MAX current is 500mA but might be less, hence some USB disks have an additional USB connector to get more power. Mind you if it's a reasonably new PC it should be 500mA.
The mains charger should have a rating on it, hopefully 1000mA, try that and check in CurrentWidget. Also bear in mind that the charging current will also tail off as it gets close to being fully charged.
Have you ticked un-ticked the box "No Log in Charge" and also ticked "Force Log in Sleep Mode".
If you click on the battery graph in setting does it show the phone Awake 100% or does it have some sleep periods ?
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Click to collapse
Can't use the mains charger because it is a Hong Kong adapter and I live in main land China (different outlets). Don't recognize "No Log in Charge" and "Force Log in Sleep Mode" so I'm going say I haven't done either.
Also, I became aware of the problem while trying to charge the phone via my Asus Transformer usb port and the usb ports on the computers at the school I teach at. The phone would say charging but would never actually increase the battery percentage. Those both probably have pretty low amperage. However my home pc is fairly new, and charges other phones fast, and charges my sensation at decent speed.
I use cpu spy to check to see if it sleeps. Charging via usb port or wall adapter (non-HTC) cpu spy never shows even 1 second in deep sleep, it just stays at 192 MHz. Unplug the phone and it will go straight into deep sleep no problem. Looking at the History Details for the battery, it has some non-awake(sleep??) periods during charging.
So, do android phones (or specifically the sensation) go into deep sleep while charging? I just need to figure out is this normal or not.
aimcr7 said:
You cant get deepsleep while charging, thats based on my experiences, but maybe i am wrong, cause i dont use cpuspy for long time,.
Sent from my HTC Sensation Z710e using Tapatalk 2
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Thanks, that is exactly the information I need.
UPDATE: Now that I know my ROM/Kernal doesn't have any problems, I've moved on to testing cables/ports/chargers. Finding huge differences in the charging rate between different cables.
OK on CM10 I just charged from 68% to 100% and the phone was NOT awake during the charging period.
I'll repeat the exercise later on 3.33.401 stock but expect to see the same.
Are you sure it's not one of your apps that's causing the phone to stay awake ?
aimcr7 said:
You cant get deepsleep while charging, thats based on my experiences, but maybe i am wrong, cause i dont use cpuspy for long time,.
Sent from my HTC Sensation Z710e using Tapatalk 2
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gol_n_dal said:
OK on CM10 I just charged from 68% to 100% and the phone was NOT awake during the charging period.
I'll repeat the exercise later on 3.33.401 stock but expect to see the same.
Are you sure it's not one of your apps that's causing the phone to stay awake ?
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Click to collapse
It's not "awake" i was looking at, I was looking at deep sleep. The phone can be "not awake" and at the same time not be in deep sleep. Awake is when the phone is on and doing things, even when the screen is off. Deep sleep is when the phone is hibernating. While charging, the phone is not awake, unless its doing something, however it doesn't go into deep sleep either. It just throttles down the CPU speed to the lowest speed and "idles" so to speak.
Yeah, so I solved my problems. Thanks for the help.
Does anyone know how to fix it? (don't know if it's an issue indeed)
I just wanted that my phone goes to deep sleep as I eventually use Powerskin (1500mah external battery) and it lasts like 8 hours (cpu keeps at 192mhz, doesn't get into deep sleep while charging). So, I'd like to avoid unecessary battery consumption.