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Battery Drain on G1

Guys,I own a T Mobile G1 Android 1.6 Phone and recently I’m facing some problems. The problem that appeared recently is with the battery drain. before some days ago the battery of my G1 lasted up to 4-5 days, without using Wireless, GPS, and Bluetooth. If I used the mentioned services normally the battery lasted up to two days. But recently the battery is draining too fast. Within 4 hours the battery goes down less then 15% even I do not use any mentioned services. I keep my phone on standby, without talking a single minute with the phone, not using any service etc, and again it goes down very quick. I took some measures according to HTC instructions how to save the battery but again it does not function. I uninstalled all applications and reset the phone to factory setting by again same thing. Then I searched on the Google some instructions, I tried also that one’s but again it does not function. I always used HTC charger that came with the phone but again same problem. What is the strangest thing that after some days the battery gets back and works perfectly for two weeks, which means I use the phone normally without charging 4-5 days. As I operate very well with the smartphones, Pocket PC’s etc I start analyzing G1 and monitoring very closely why the battery goes down, I monitored for a long time the query under the :About Phone-Battery use- and I see there that Andorid OS is using the battery from 76% up to 85%. Now it came to my mind that something is keeping engaged or it keeps running the Andorid OS always on. Then I suspected that thre my be any virus on my phone, but I installed form Market Flexilis/lookout antivirus application, but there was no virus and again the battery goes very quickly down. As I said after sometime the system returns to normal and the battery lasts for 4-5 days, and when I check the information under Phone,Battery use, I see that the Andorid OS is spending only 6% of the battery. Comparing with the previous description it is a huge difference. According to my opinion there is a small problem with any file which keeps always running to much the Andorid OS. Can you please give me any instruction why Andorid OS is spending that much the battery? Or give me any instruction how to prevent this operation that keeps Android OS to much engaged? or is there any programming mistake?, is there any need for update?, do I need to root my phone as it is not rooted? The reason why I’m thinking that there is a technical problem is because sometimes the system gets back to normal and sometimes it goes out of normal running. I appreciate a lot if you could help me to resolve the mentioned problem.

I've noticed the same thing on my G1 sometimes there is fast battery drain and it seems associated with Android OS. The percentage is over 70%. I also notice it be associated with the display as well. Could be that there is some process that won't stop running and is using Android OS or it could be that on other occasions the display is not going into sleep mode properly. I wish I knew how to fix these problems but I don't. I just observe them.

The battery issue, is an up and down problem for me. Sometime I can go through it in one day or less, other days it will last me for 2 plus days.
It also could be that the battery need replacing. Who's know.

I just bought a 2nd hand G1 - works just fine. I rooted and installed CM6.1.
My battery drains within 1-2 hours. I've tried various methods of resetting stats, with no luck. How frustrating! I wonder if it's a battery hardware problem or software?

battery
I also faced bad battery life on various roms. Since I'm using COS-DS (android 2.3.3) http://forum.xda-developers.com/showthread.php?t=950765 and the Biffmod kernel http://forum.xda-developers.com/showthread.php?t=950765 the phone runs more than 24h when texting and calling. Of course you should apply the 14MB RAM hack in comination with this kernel http://forum.xda-developers.com/showthread.php?t=831139. On standby (everything off, except data and 3g) my G1 runs >48h, before it needs to be plugged in.

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mqazimi said:
I monitored for a long time the query under the :About Phone-Battery use- and I see there that Andorid OS is using the battery from 76% up to 85%.
Click to expand...
Click to collapse
Sounds like the basic description of the USB Charging Bug.
The bug triggers if the G1 is using a kernel starting 2.6.35 and onward tree, and charged using the USB instead of AC wall charger.
A couple of option to avoid the super discharge after that (you can use either);
1. Reboot after you unplug the USB charger.
2. Change kernel to one from 2.6.34 tree
You can also visit the Dev sub-forum, there's a thread there discussing the debugging process.

It is so unpredictable for me...I have just got into the habit of a reboot after unplugging USB.

Battery drain on the G1
I have the same problem. Even on standby it drops to less than half of its battery life. Sometimes its worse. today i noticed that the battery percentage was at 84. Next thing I know the phone reboots itself and it displays that it has 1% battery, battery icon empty all in red and LED flashing in red. Then I turn it off connect it to the charger, after a couple of seconds I turn it back on and says its 90 something percent. Could be a virus or just a battery bug,that's my guess. I scanned the phone with Lookout Security and there was no Virus,malware or spyware found.

I want to try different kernels for this battery issue but want to make sure I am installing the right one.
I have CM6.1 with 2.22.23.02 radio and DangerSPL installed. Can I just load any of the kernels built for EBI0?
Specifically, can I flash the kernel in the 1st post here? http://forum.xda-developers.com/showthread.php?t=1010932
Thanks.

[Q] Battery drop after unplug the charger

My battery status drop significant after unplug from charger. When charge it show 100% full, the moment unplug drop become 81% How to fix this?

i also have the same problem and im getting pretty pissed off, phones plugged in all night, unplug from 100% and it drops to 88%.
meanwhile my battery widget still says discharging from 100% and the time i unplugged the phone at n

It happens to my handset also. This started after upgrading it to 2.3.3 and this behavior i am observing from Day-1 of the update.
The battery drain has increased alot after the update and i am forced to charge the mobile twice atleast in a day.
It is really surprising the big names "SAMSUNG" & "GOOGLE", what they are doing?
Whether the time has come for the GOOGLE to introspect their raise?
--imax98

Take a look at this:
Battery Drain after full charge with charger connected on a GB OS image

I also happened to me, after a few reserch i found that when you install a custom rom, you have to calibrate battery, so it shows and charges acurrately, you can find lots of info in this forum, or you can try with an app called Battery calibration ROOT RIGHTS NEEDED.
the battery drain issue i found an article saying that it happens when uprgading to 2.3.3, it happened to me, it drained 10% an hour in sleep mode, after the fix it drains 0-5% in a 10h sleep mode.
Android OS bug on Gingerbread ROMs
This is the most annoying Samsung/Android bug.
A good few people have been seeing battery drain on Gingerbread. It comes randomly and apparently once it starts the only way to stop it is to reboot... But it comes back after a while
You can identify this drain by checking the Battery Use in Settings : if Android OS is above 20%, often between 40 and 60% of the battery consumption while your phone has been idle most of the time, then that's it.
The good news is that there is a semi-fix found in XDA: 2 system apps are responsible for this leak, here's what to do using Titanium Backup :
Find Software Update & Samsung Account, select them one by one and "Clear Data". Now you need to freeze Software Update (if you have the Pro version of Titanium Backup) or to backup the app and delete it. Since you don't delete the backup, it's like a freeze. (But keep the backup in case you want it back for some obscure reason)
Or simply use the default app manager to clear the data and Root Explorer to backup/delete Software Update.
If the Android OS battery drain comes back after freezing/deleting the 2 apps above then I suggest you read about the app below. You can back it up and delete it as well and see if it improves:
wssyncmlnps.apk (info) - make a backup in case.
But the AOS BUG will probably keep coming because there is no proper fix to it (Google bug fixed on 2.3.4).
Please share your findings posting in this thread so everybody can know.
Click to expand...
Click to collapse
if you want the full guide search in darky's rom forum battery life, and its a guide. I cant post links outside the forum bc im new.
Of course you need root access. IT WORKED GREAT FOR ME. I have darkyrom 10.1 w/2.3.3 android. I do recommend to backup Software Update, Samsung account and wssyncmlnps.apk And then delete them. Reboot, and let everything loads correctly. Charge your Phone to 100%, and after a few minutes after, check the battery usage and it should be not draining battery as it was.

It's a gb problem for some of us. In short, when charging hits 100% while the display still shows 100%, the charging actually turns off, but the phone still thinks it's on charge and cpu usage etc can be very very high. The worst I've had is unplugging it in the morning to have it drop to 30%, although around the 80 to 90% is the norm. It should only drop to between 97 to 99% on unplug. That's normal.
Until sammy fixes it it will be a flaw with 2.3.3 and 2.3.4 for some of us.
I'll add, I have a galaxy tab (got it a week ago) and it does not have this problem.

Wakelocks and Massive battery drain!

Hi guys,
After updating from a March nightly to the latest Cyanogenmod nightly I've been experiencing the worst batterylife I have ever had!
I mean, seriously. Charge it up at night, place it by my bed and it's completely dead in the morning!
So it loses 100% battery overnight, with no usage whatsoever
I've tried beanstalk (Also Cyanogenmod based) and experienced the exact same issue. A full wipe and a brand new Cyanogenmod update and it's exactly the same.
I really can't return to stock as I'm making use of a lot of Cyanogenmods features.
The wakelocks are:
As reported by BetterBatteryStats:
Msm_hsic_host
And also a msm_camera wakelock poped up at the top of the list once.
Needless to say "Android OS" tops my battery usage screen with over 90% usage
Is anyone else experiencing the same issues? Anyone know a fix?
I'm basically without a phone right now

Azurren said:
Hi guys,
After updating from a March nightly to the latest Cyanogenmod nightly I've been experiencing the worst batterylife I have ever had!
I mean, seriously. Charge it up at night, place it by my bed and it's completely dead in the morning!
So it loses 100% battery overnight, with no usage whatsoever
I've tried beanstalk (Also Cyanogenmod based) and experienced the exact same issue. A full wipe and a brand new Cyanogenmod update and it's exactly the same.
I really can't return to stock as I'm making use of a lot of Cyanogenmods features.
The wakelocks are:
As reported by BetterBatteryStats:
Msm_hsic_host
And also a msm_camera wakelock poped up at the top of the list once.
Needless to say "Android OS" tops my battery usage screen with over 90% usage
Is anyone else experiencing the same issues? Anyone know a fix?
I'm basically without a phone right now
Click to expand...
Click to collapse
I've got the same issue here, but for me it's caused by Google services. At times my battery drains within 4 hours, even if I don't use the phone.
But at some times (most of the times) the phone just acts normal.
Before 4.3 I never had this problem, waiting for 4.4, hope that my problem will be gone. Else I'll just go back to 4.2

Aha! Success!
I have found the issue, I'll post it here if anyone else is having the same issue. Not sure if it'll help you though Dsteppa as your problem seems slightly different to mine
Although I would recommend "freezing" google maps as a starting point. See if that helps! Many android devices suffer from a similar problem, chances of it helping you is about 70%. If you're rooted it's relatively easy to do using apps from the playstore
Msm_hsic_host is used to "mount" the 3g modem as a usb device.. At least that's what I've gathered from various sources. Some phones have a kernel issue which stops the modem from being "unmounted" when data sending/receiving has been completely and thus drains the battery.
Turns out Msm_hsic_host was working as intended. It was actually an app which was apparently steaming data in real time, forcing the 3g modem to remain at full power and preventing the phone from sleeping. The unusual thing is that this app claimed it only consumed less than 3% and didn't even show on Better Battery Stats!
Uninstalling the app instantly solved my battery power issues! So for anyone experiencing similar issues, check for any apps which could be using "realtime" streaming; Such as third party Twitter / Facebook or even Email apps.
Hope this helps!

Battery Issues

Hello.
I'm having trouble with the newly replaced battery on my rooted Xperia Z1 (with android 5.1.1).
2 months ago i replaced the battery because the old one overheated. The new battery has been fine untill a few days ago when it told me all day that it had 50% left. I found that weird so I didn't charge it to let it run out of battery so I could charge it to 100% and recalibrate it.
After the phone suddenly blacked out the battery wouldn't charge any more, so I took it out and messured it's voltage to be around 2.5. So I jumpstarted the battery back to 3.5 V and was able to make it charge again. Even though the battery functions like "normal", it still says 50% all the time with few exceptions which does look to be the correct battery level. The power management app disappears from settings whenever the battery shows 50% and reappears when it shows the correct level.
The battery indicator shows the correct percentage when charging, but not otherwise.
My theory is that there is something wrong with the software regarding the battery management and that it let the battery use too much of it's voltage. I've seen people with similar problems (50% battery indicator and disappearing power management), but the only solution there was to replace the battery. It doesn't seem that likely because of the software being buggy and the battery is only 2 months old.
Here's some screenshots of the weird behavior:
imgur.com/SXSMdzi
imgur.com/OcYKHjA
(Couldn't include image because I am a new user)
As I were writing this, it began discharging while hooked up to a charger. Seems to be a bit unstable.
Would appreciate all and any help

Hello!
I also got similar issues. I've read and try anything to find what happened with my Z1.
First, in my experience, some says (on internet) it's Android problem called Sudden Battery Drain Syndrome. I've tried apps like repair battery etc. and calibrator to fix it. Still the same the battery drain badly.
Second, so I am continuing my investigation on internet. I read from xperia care etc and I found that android Lolipop (5.1.1) terribly sucks for Xperia Z1. Many Z1 users confirmed this. Not just the battery problem, there are bugs also, like touchscreen, screen flickering etc.
Third, after knowing this and read like 2 hours to find the solution, I found in this forum that it's better to downgrading the android version back to KitKat or JellyBean. So I installed JellyBean firmware. Just now finished. I hope it'll be good again. I'll inform you.
NB: Factory reset also won't work

Hello, nice to get some response on this thread.
FrankBubble said:
First, in my experience, some says (on internet) it's Android problem called Sudden Battery Drain Syndrome. I've tried apps like repair battery etc. and calibrator to fix it. Still the same the battery drain badly.
Click to expand...
Click to collapse
I tried battery repairs, calibrators and so on. Did not do anything for me. After reading up on Sudden Battery Drain Syndrome, I'm inclined to say that it doesn't seem all that similar to my problem.
FrankBubble said:
Second, so I am continuing my investigation on internet. I read from xperia care etc and I found that android Lolipop (5.1.1) terribly sucks for Xperia Z1. Many Z1 users confirmed this. Not just the battery problem, there are bugs also, like touchscreen, screen flickering etc.
Click to expand...
Click to collapse
That is interesting to know. I have experienced alot of those problems. I was thinking about upgrading to a custom unofficial Android 7 for xperia z1, hearing this might be the thing that makes me do it. It's always such a hassle to download apps and set up from a new install, so I've put it off for a while.
Some days after starting this thread, I ordered a new battery. The old one started to do the same thing. Seemed like I could jumpstart it again, but I don't see the point in doing that every other day.
The new battery has been working great for almost 3 weeks now. I still have the Lolipop problems you mentioned, but the phone works as it is supposed to. It acts up from time to time, but I suspect that being because I use Greenify and CPU tuner to make the battery last longer. I might be upgrading to Android 7 and if that fails, I might downgrade.
I'm hoping I was unlucky with the last battery because it lasted so short and that the problem was only related to the battery. I will post updates here if the new battery also suffers.

Bluetooth battery drain

I'm having an issue with my Galaxy Tab S2 (Nougat 7.0, international unlocked T710 Snapdragon) when using any bluetooth device with it. The battery drains like hell. After a two or three hours of using a bluetooth keyboard, bluetooth is the main cultprit of battery usage. I don't know what to do - I wiped the cache partition, did a factory reset. Nothing helped.
Otherwise, the battery life is great, but as soon as I connect it with a BT device I can see it dropping. Everytime I click on Bluetooth in Battery settings I can see there's more mAh used...
I would appreciate any help.

Nougat.. thus better downgrade to MM or Lollipop.

Dear all,
I Have same bug with My SMT-813 since update Nougat, When I use with skeaper bluetooth.
Do you have found a solution?

Did you factory reset after OS update?

Niii4 said:
Did you factory reset after OS update?
Click to expand...
Click to collapse
Dear,
Yes, all reset.
I think it's Nougat because with android 6.01 all is ok.

So better downgrade back to 6.0.1 then.

hdloulouhd said:
I think it's Nougat because with android 6.01 all is ok.
Click to expand...
Click to collapse
Yes, it's happening since the Nougat update. I've already filed a bug report for it but got no answer from Samsung till today.
The only thing you can do about it is to turn it off. And if you need it you have to downgrade to MM.

Same here on t819, but its kind of fake data, in my opinion there is somrthing wrong in calculating mah consumption. My battery still lasts the same, even when using or not using bt, but it has a lot of bugs, like forgetting paired devices or failing to pair. Everything about bluetooth is not perfect on N

Hi All
Do you have news about this bug?

Workaround
I've had the same battery drain issue on my S2 since upgrading to Nougat. Yesterday however I found I could 'fool' the system by turning on Flight Mode and then turning BT and WiFi back on - Consumption back to normal! It looks weird having Flight Mode on at the same time as BT & WiFi but it seems to work.

Update
I’ve just been trying to repeat my observations and the results are a little ‘challenging’
I saw a comment in another forum where someone suggested that the discharge effect is really a false positive caused by a faulty battery monitor in the Samsung software. So a downloaded a third party battery monitor, I charged my tablet to 100% , turned off flight mode and turned on both WiFi and Bluetooth.
The main observation is that the battery was not discharging rapidly – previously you could virtually watch the percentage on the battery meter decreasing in real time. After using the tablet for a day or so for browsing and watching some short videos I compared the two battery monitors – the Samsung monitor showed the battery down to 40% - but ascribed virtually all of the use to Bluetooth! The third party monitor showed a sensible mix: mostly browser and video player with small values for other programs.
I conclude therefore that the Samsung battery meter is definitely very broken.
As far as my earlier observed battery drain is concerned there seem to be two possibilities:
1) It was truly the Bluetooth causing the drain and switching to flight mode has cleared it (unlikely in my view)
2) The drain was caused by something else but was displayed by the battery meter as Bluetooth, and when I switched to Flight Mode it stopped - either by coincidence or because the Flight Mode really stopped the drain.
Number 2 seems to me the most likely explanation. I have noticed that all of my Android devices exhibit anomalous battery drain about once a month, and a functioning battery meter shows this as Android System usage. I don’t know what it is doing but my best guess it is some sort of file scan/verification (or maybe just harvesting data!). After a system upgrade it would be quite plausible that Android wants to scan the new installation.
I have, in the past, stopped this Android process by rebooting a device, so it is not impossible that entering Flight mode has had a similar effect.
For the moment my S2 seems to be using a sensible amount of power – both with and without Flight Mode - albeit with useless reporting of the details by the Samsung monitor.