Database Develop

[SOLVED]Unable to calibrate battery on 2.2.1 based ROMs

I am facing a rather "cruel" issue with my phone of late.
I am unable to calibrate my battery ever since I installed 2.2.1 based ROM. It goes upto 98% properly, and then within a minute or two shows me the "charged" message. When I pull the charger plug out, it immediately falls back to 98%.
I tried charging fully with phone on, then off, wiping battery stats using both sgs tools and CWM console more than half a dozen times till now, but am still facing this issue.
I even tried changing the battery, but even then am facing the issue. Also tried the total discharge and total charge method.
Could anyone help me please.
Note: I tried like 2 different 2.2.1 based ROMs.

in another thread someone mentioned it being a bug with all 2.2.1 roms. I'm dealing with it too. Best thing to do is use a battery theme that doesn't show the percentage that way its not bugging you. 1-2% means nothing.
Sent from my SGH-I897 using XDA App

ninjuh said:
in another thread someone mentioned it being a bug with all 2.2.1 roms. I'm dealing with it too. Best thing to do is use a battery theme that doesn't show the percentage that way its not bugging you. 1-2% means nothing.
Sent from my SGH-I897 using XDA App
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Oh. Thank you ninjuh. So I think I would go back to 2.2 based ROM and wait till 2.2.1 is fully fixed.

Known issue 2.2.1. i would expect a fix eventually
Sent from me

I got this app called "Battery Booster" from market y'day. I started it, and put the screen "never off" and then had it on charge. It took like a good 20-30 mins to come from 98 to 99 to 100. And then it came to "charged". It stayed at 100% after I pulled the cable off.
But then, it was back to normal 98% behavior when the turned the app off.
One thing I could notice was that, once the charge hit 98%, and the turned off the screen, the "charged" message comes in under a minute. But with screen on, it took more than 20 mins.

Thread can be closed.
Looks this is a known non-issue in 2.2.1 and some latest kernels to help avoid battery overcharging.

diablo009 said:
Thread can be closed.
Looks this is a known non-issue in 2.2.1 and some latest kernels to help avoid battery overcharging.
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Just edit your title to [SOLVED] Unable to calibrate battery on 2.2.1 based ROMs

Thank you sir.

Sudden battery drop down

Hello,
I was wondering if anybody else experiences this behavior:
From time to time the battery of my Galaxy tab drops to 3% (at least this is what Android tells me). I noticed that this often happens when a view change takes place and when I simultanously press the volume control down. Today it also happened on a view change when I was using Skype. When I reboot the device it's showing a normal battery level again (e.g. 43%).
I wonder if this is a hardware issue or if it's a software bug. Anybody experiencing this,too?
Sent from my GT-P1000 using XDA App

Are you rooted/unlocked/rerom'ed at all?
There are various methods to resetting the batteries calibration, but it just depends on what brand you have/what you've done to it.
This is a fairly common problem, and for the most part can be solved easily.

Hello,
no, it hasn't been not rooted yet. Do I need to root it before I can recalibrate the battery?
Sent from my GT-P1000 using XDA App

Ok, there is an app and I need root for it to work. Seems it is solved now.
Sent from my GT-P1000 using XDA App

loonyt said:
Ok, there is an app and I need root for it to work. Seems it is solved now.
Sent from my GT-P1000 using XDA App
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Which app are you talking about ? I have a very similar problem -- battery suddenly goes from ~30% to 1%, the tab starts screaming that I should connect to the charger, and (sometimes) shuts off. If I then wait 10 minutes, the battery will show again 30%, and it might run for awhile, go to 1%, where it will happily "run" (albeit doing nothing) for *HOURS*.
I'm rooted, have BatteryCalibrator installed and run it (I charged it fully, ran the calibrator, and am waiting for it to completely drain -- so that it wont even turn on, to charge it up again). So I'm wondering if you've really fixed this, and how.
I've contacted Samsung about my problem (the tab is about 6 months old) and they told me to do a full reset (special key sequence in telephone -- dont know if this is different from the "factory data reset" in Settings->Privacy).
I haven't done anything with this rooted phone yet, as it has unlocked everything, and I want to make sure I understand how to go back to a fully unlocked state before attempting to update (running XWJJ7). I also dont want Samsung to update it if I have to return it for warranty service....

[Q] Droid "Sleep of Death"?

Ok, haven't been too active here in the OG Droid section, but very active over in NookColor. What I found this morning is best described by the term used alot over there - "Sleep of Death" or SOD.
Went to bed last night, with a 90% battery. 6hrs later, woke up, checked the phone, flashing green LED, but it would not turn on even if I slid out the keyboard. I pulled the battery, turned it on.....nothing. Plugged into the charger, came on, showed 5% battery.
So, pulling from processes described in the Nook forums, I went to /proc and looked for a lastkmesg. Nothing. The only proof I have are these screenshots from battery monitor widget.
The first one is the history file with time stamps, second is the graph of said time.
Running CM7/Nightly 125

I would check spare parts to see if something is holding a wake lock or using a lot of CPU.

catpaws said:
I would check spare parts to see if something is holding a wake lock or using a lot of CPU.
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I think because I reset battery stats before posting this question, I can't get that answer. Time since boot its the same as since unplugged. I have never had this problem before, hopefully never again.
Sent from my Droid using XDA Premium App

Batery Usage HELP!!!!

I am currently running 5.7.893 rooted and I have been having battery issues lately. The problem is I sit here , 1h 37m off of the charger and the phone is reading 80%. The breakdown looks like this:
Android OS 39%
Maps 12%
Display 11%
WiFi 9%
and a couple other small things.
It seems like my phone is never going into standby and I can't figure out why. I've checked a bunch of things and no luck. If I click the chart at the top of battery info, I see "phone signal" taking a constant drain on the battery.
The only thing I can think of to do is to factory reset the phone and see if that helps.
Any ideas?

I would recommend the Factory Reset. But first, is there a chance it's a battery calibration issue? Have you checked the actual mV reading with an apps such as Spare Parts?
Before you do the reset, make sure the Backup and Restore are checked in the Privacy setting. And then after the reset make sure you check the two options presented about Backup and Restore. These show during the new setup after you enter you gmail info. Also, if not in a 4G area, if possible connect to wifi before you finish the setup as your apps will start downloading automatically. Good luck.

I did try battery calibration first without luck. I just did the factory reset and I'm charging to 100% now. I haven't done the titanium backup restore, because I want to see if installing the apps I use from scratch again will fix it rather than just restoring them.

Beefcake550 said:
I did try battery calibration first without luck. I just did the factory reset and I'm charging to 100% now. I haven't done the titanium backup restore, because I want to see if installing the apps I use from scratch again will fix it rather than just restoring them.
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That's a good idea. Lately I've been letting Google install the apps and then I use Titanium to only restore data to select apps (such as Tapatalk).
Sent from my DROID BIONIC using Tapatalk

Well, now I'm confused. I haven't installed any apps yet after the factory reset. after 2h 50m of just sitting there, it's reporting:
90% still
32% Android OS
20% phone idle
16% display
16% cell standby
10% wifi
looks much better, but does this look right? I would have expected cell standby to be the dominant process.
wifi

Having the exact same problem. Seems to be draining battery at the same rate it was before the update (which was supposed to fix battery drain or so I thought). I'm-a try a little experimenting before doing a factory reset (HATE doing them). Right now, I'm theorizing the built-in Google backup process might be responsible because I've never seen so much drain before and I usually turn Google backup off since I use TiBu but forgot to disable it after the update.
In the meantime, I've prepared myself for the battery issues by purchasing the battery dock and an extra battery for three total. Swapping batteries is better than staying tethered to a wall charger so much.
EDIT 1: Looks like that did nothing. Next, I'll try wiping cache (didn't do this when I updated)
EDIT 2: Looks like not much change from wiping cache. Guess I will be trying that reset.
EDIT 3: Looks like I use the phrase "looks like" too much. However, the factory reset appears to have resolved the issue, at least initially. Fired up the phone and Android OS was only 8% of the battery usage after 10-15 minutes. Will check back if anything changes.

Disable push sync on your device.
changing and controlling your sync settings will solve your standby issues and improve your battery life.
Sent from my DROID BIONIC using xda premium

I think a better way of looking it this is that your phone isn't spending 32% of its time using the Android OS and only 20% of its time being idle. That's just how much battery they are using. Your phone could be spending 3 hours "idle" and only 15 minutes using the OS and this is how it could read. It's just how much battery each one is using, not how much time each one is spending doing that particular task.
Beefcake550 said:
Well, now I'm confused. I haven't installed any apps yet after the factory reset. after 2h 50m of just sitting there, it's reporting:
90% still
32% Android OS
20% phone idle
16% display
16% cell standby
10% wifi
looks much better, but does this look right? I would have expected cell standby to be the dominant process.
wifi
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Are you on stock ROM? I'm running the Liberty ROM and sitting at 78% battery at 24hrs13min on stock battery. Cell standby 49%, Phone idle 48%, Display 3%.

djr4x4 said:
Are you on stock ROM? I'm running the Liberty ROM and sitting at 78% battery at 24hrs13min on stock battery. Cell standby 49%, Phone idle 48%, Display 3%.
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I call BS to this...unless you have had airplane mode on the whole time...lol.
Sent from my DROID BIONIC using XDA App

I'm with noosympathy on that one.
A ROM will improve better life but not that much... maybe if you ran it on 3G only, but then again, that is a maybe.
A lot of your battery is used when your phone is syncing.
When connected to 4G, it uses a lot of power trying to get a signal as well.
To help get some more life out of your battery, disable push syncing and notifications.
I set mine to 1 hour because I don't like being bothered for stupid bs.
When your in a place where you know you don't get 4G, turn it off. It is going to try to aquire a 4g signal while running on 3G the whole time draining your battery.
If am out and don't need 4G, I turn it off. It only takes about 15 seconds to turn it back on and have it link up.
Do you really need to be on 4G to play angry birds?
I recommend installing tasker. You can program stuff like this into it.
Sent from my Xoom using xda premium

Maybe I'm weird, but I don't have a need for 4G data all the time. 95% of the time I leave it turned off and battery life is quite nice with the Bionic just riding on 3G. If I'm in a situation where 4G would be useful I'll manually turn it on. Battery life is so much nicer when the radios in the phone aren't constantly fighting for supremacy.

Call it as you will. I leave data off unless I need it for something and when I do use it I only use 3g. Most of the time I'm in a wifi area so I'll just use wifi. Speaking of wifi I leave that turned off also unless I need to use it then I turn that on for the time being and turn it back off when I'm done with it. Other then that I use my phone mainly for texting, and calling when need be. If I'm home I use the home phone to talk, and when I'm at work, I use my cell strictly for text and if you really need me I'll talk to you by office phone. I also leave gps off. I see no reason to leave it on. I tried to post a pic of battery life yesterday but it would not take for some reason.. Like I said. You can call BS all you like. I know what my phone did for the last 30 hrs. Last night I charged it. Downloaded a few apps, and updated some app and played angry birds for awhile last night before I threw it on the charger. Maybe that charge was a fluke. I dunno, but that charge was honestly what I had. Pretty sad to sign up to a forum, look for good info and also try and help out someone else with this phone and give insight and then be called a liar by other folks. Maybe I just won't post anymore. Hope you all enjoy your phones and ROM's. I'll just tend to myself.

Nexus 6 Restarting and Battery Issues

Hi Guys, I really would like to ask some help with my Nexus 6 in which the battery drains to fast and some message always appearing once I try tuning it on back again.
It all started just last week when i noticed that my battery drains to fast, in which lets say the battery has still 70% of power then when Im about to using, the fone will immediately turn off saying the battery is already 0%. But once I try to charge it, it'll be showing that the battery has still 70% of power. Aside from that, every time Im about to turn it on after the knowing that my phone has still enough battery or once I tried to plug the adaptor. A message will appear stating that "Apps updating 15 of 135" something...
I've tried to reset my phone hoping that something that I've downloaded probably have cause my phone to malfunction, but still no use. The battery is draining too fast and that updating of apps is still showing and it'll take atleast 4X I need to turn on my phone with the charger plugin in order for the phone to turn on properly.
Would anyone might know whats the problem or whats causing my phone to malfunction in that way?

rommelv said:
Hi Guys, I really would like to ask some help with my Nexus 6 in which the battery drains to fast and some message always appearing once I try tuning it on back again.
It all started just last week when i noticed that my battery drains to fast, in which lets say the battery has still 70% of power then when Im about to using, the fone will immediately turn off saying the battery is already 0%. But once I try to charge it, it'll be showing that the battery has still 70% of power. Aside from that, every time Im about to turn it on after the knowing that my phone has still enough battery or once I tried to plug the adaptor. A message will appear stating that "Apps updating 15 of 135" something...
I've tried to reset my phone hoping that something that I've downloaded probably have cause my phone to malfunction, but still no use. The battery is draining too fast and that updating of apps is still showing and it'll take atleast 4X I need to turn on my phone with the charger plugin in order for the phone to turn on properly.
Would anyone might know whats the problem or whats causing my phone to malfunction in that way?
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The battery is busted, the same thing happened to me. I had to send the phone back to Motorola and they sent me a refurbished one back and its having the same issue. I'm just giving up on this phone and getting the note 4
Sent from my Nexus 6 using Tapatalk

rommelv said:
. . . A message will appear stating that "Apps updating 15 of 135" something....
Would anyone might know whats the problem or whats causing my phone to malfunction in that way?
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Click to collapse
It could be updating of apps or system. In that case the message "Apps updating . . ." is normal after reboot.
When you have a slow data connection updating can take a lot of time, including battery drain.

Same problem with my n6. But only in high mountains... No restarts when in airplane mode or without sim card