yashsingh1/xdaforums huggingface dataset:
[Motorola Atrix 2] Apex:
Are you asking for my "results", meaning my battery usgae stats (i.e.: maximum duration of battery from full charge to full discharge, screen time, etc.)? If so, I'll have to do this again, as it's been a couple of months since I had. Keep in mind, that everyone's results will vary, as it depends on so many different variables.

Also, being on WiFi will demand less from your battery than relying solely on the network connection. So, if you're 'always' on WiFi, you will get more from your battery than not. On my Atrix 2, I can get a full day or more from one full charge. Now, this is from my usage, and like I mentioned -everyone's will vary. Generally speaking, in practical use Wi-Fi isn’t any more or less friendly on your battery than cellular is. Sure there are differences, but the biggest one of all is distance. Since you’re probably a good-deal closer to your Wi-Fi WAP than you are to your cellular tower, it’s likely that your battery life will be better if you’re using Wi-Fi rather than cellular data.

The charging trick I outlined in this thread is very useful for battery reporting errors after flashing a new rom, or just is one feels like their battery isn't getting the kind of "full" charge it should. It helped me out, as well as others...
[Motorola Atrix 2] Ajfink:
I have an extended battery that I've run through several full drain/charge cycles over the past two weeks (when I got it). However, it still doesn't register the charge % properly - it will say 5% for over a day. I used the BatteryCalibration app to no avail.

Ideas?
[Motorola Atrix 2] Apex:
Try the battery charge trick above, without the Watchdog part -sounds like a battery reporting error. Are you using 1% battery mods?
[Motorola Atrix 2] Ajfink:
No, I'm completely stock with root.

The Battery Calibration app DOES list the appropriate mV levels, though.

I'll give it a shot.
[Motorola Atrix 2] shardul.phatak:
governors, i/o schedulers ?

may be this & this could help if u want to do sum experiment :silly:
[Motorola Atrix 2] hankbizzo5:
+10 awesome job again !!!!!
[Motorola Atrix 2] shardul.phatak:
similar issue

+1

i'm facing similar issue with extended battery

i googled n found Li-ion batteries doesn't discharge linearly .... it discharges like this

i was experiencing discharge like this but now its random

do anyone know wat is voltage @100% & @10% of battery ?
[Motorola Atrix 2] :
I completely agree with the OP and the guide, but I would like some senior guys have a look at this article by phonearena.com..

http://www.phonearena.com/news/5-my...Bluetooth-off-would-prolong-your-battery-life
[Motorola Atrix 2] Apex:
I call bull$#¡T on numbers 1, 3, 4, & 5. I don't know where this guy got his information regarding these 5 "myths", but I can only agree with his conclusion regarding myth number 2 - the others I can attest that I myself have experienced better battery life when done just the opposite of his suggested approaches...
[Motorola Atrix 2] Apex:
Haven't you ever noticed that looking at your battery discharge rate graph from settings looks nothing like the above graph? Fully charge your battery, then don't touch your phone (as much as you can avoid doing so) for as long as you can, and you will see the discharge rate IS more linear than not, but not to say that this is how lithium ion batteries in phones discharge this way, but it would appear to suggest it does more similarly to a "linear" discharge. Also, you can download a battery monitoring app to find voltages at different charge capacities and determine what your voltages are at those percentages...
[Motorola Atrix 2] :
You know apex it doesnt take much time to realize how crap the article is, "live wallpaper does not drain battery".. that tells you the story.. but number 2 is what made me post this here. But thought you would think i was opposing your guide, so let you know that i completely agree with your guide and thank you for the thread.

Speak only when it improves on your silence.
[Motorola Atrix 2] shardul.phatak:
I was experiencing 100-90 discharge more rapidly than 90-0 on GB but i never tried discharging it to 0% ... so cant say about other end of graph

I am using battery monitoring app since 2 months

This was the longest i got on ICS :rolleyes:

_____________________________________

Sent from my locked A2 on leaked ICS
[Motorola Atrix 2] Apex:
This is on my SGS3, but I'd see the same type of discharge graph on my ATRIX 2. And yes, I've been using the hell out of my phone for the last hour and 45 minutes! :p
[Motorola Atrix 2] gvsukids:
I found when I turned on airplane mode, my graph was straight. After turning airplane off, my graph sinks downhill again
[Motorola Atrix 2] Apex:
Airplane mode will disable radios, therefore, your phone isn't searching/connecting to data/network/WiFi/etc. This is why I mentioned this as a means to extend your battery life between charges... :thumbup:
[Motorola Atrix 2] gvsukids:
So would a different radio help battery life? of course we have a locked bootloader so we cant change the radio now, but would that help battery life?
[Motorola Atrix 2] shardul.phatak:
different radio ?

I don't think there are different kind of RADIO (except country specific)

best way to turn airplane mode while sleeping (if syncing is not SO important)

for Apex_strider:

BTW i observed some voltage difference between extended battery & stock battery

voltage of stock battery @100% is 4.326V

voltage of extended battery @100% is 4.226V

any technical reason behind this ?
[Motorola Atrix 2] Apex:
Most mobile battery's cells (Li-ion) charge to 4.20V/cell with a tolerance of +/–50mV/cell. Higher voltages could increase the capacity, but the resulting cell oxidation would reduce service life. More important is the safety concern if charging beyond 4.20V/cell. While manufacturers of Li‑ion cells are very strict on the correct voltage settings, because Li-ion cannot accept overcharge and so forth, I'd say it's a safety measure by the manufacturer and is designed this way for the purposes mentioned...
[Motorola Atrix 2] badbomb:
RootDim

hey guys, I have been using an application called Root Dim(available on market) which lets u set the screen brightness to the absolute lowest level, beyond the minimum setting available in the Atrix 2 by default. But you need a rooted phone for it to work. I have tried it and it seems to work and saves my battery a lot. :victory:
[Motorola Atrix 2] Apex:
Thanks for the tip, I'll check it out over the weekend and perhaps update the OP with this if I too see any improvements. Thanks!
[Motorola Atrix 2] shardul.phatak:
That app lower screen brightness than stock!!

Didnt check whether battery stays for more time..... dnt wanna hurt my eyes wit low brightness :P

Thanks for sharin :)
[Motorola Atrix 2] Apex:
CPU Sleeper is another great application that turns off the second core of the CPU when the screen is off, saving a lot of battery life.

Instructions for use:

1) Download and install the apk to /sdcard

2) Open any File Manager of your preference, click on CPU Sleeper, choose install

3) Open your app drawer and locate and select CPU Sleeper

3. Enable auto-start on reboot and click on "Start service" 2 times to activate

(This shuts off 1 core while the phone's screen is off! Both cores resume when the screen is turned back on)
[Motorola Atrix 2] devilhunter47:
Does this affect background tasks like ongoing downloads??..
[Motorola Atrix 2] Apex:
No, this will have no ill-effect on downloading with screen off... :good:
[Motorola Atrix 2] amynjimmy:
Gonna do this tonight cause I'm seeing. Some major battery drama on my end... Thanks!

Beamed from my scv7/leaked MB865
[Motorola Atrix 2] alteredlikeness:
Holy twinkling tweaks, batman! Wow.. you work fast. :D Thank you again, mysterious masked crusader... ;)

One note, don't set media.stagefright.enable-record=true, leave it false - well, not sure about ICS, but it killed the camera's panoramic mode in GB (I learned that the hard way.. thanks again to JRW for pointing that out to me!). Also, all of those stagefright ones exist already in stock, just flip the ..enable-scan one to true (supposed to help with video streaming, I think).

I'll pm you if I see anything else, Apex - just wanted to share that tip - keep up the good work!
[Motorola Atrix 2] Pilgrimtozion:
Those build-prop tweaks have done wonders for my battery, Apex. I finally have my old battery life back!! After all the searching, testing, and tweaking, those few edits to the build.prop did miracles. I'm so glad I found them!
[Motorola Atrix 2] Apex:
Glad those made some noticeable improvements! Did you see the post I made with some "extra" tweaks (post #40 in this thread)? You might find some of those beneficial also...

Sent from my rooted Mayan Calendar
[Motorola Atrix 2] Pilgrimtozion:
Here's a screenshot from my BBS stats - 15% in a little over 5 hrs at night. What is going on here?
[Motorola Atrix 2] Apex:
If you're referring to the first listed wake lock, I see 1.5% -not 15%...

Sent from my rooted Mayan Calendar
[Motorola Atrix 2] Pilgrimtozion:
Yeah sorry, I made a boo-boo. I had my own charger and my wife's charges sitting there last night and plugged in my wife's charger to my phone...which wasn't plugged into the wall. Instead of bringing it back up to 100% it left my battery probably somewhere around 90% - which is a different story from what I wrote above. Sorry about that Apex.
[Motorola Atrix 2] Apex:
No worries, glad to hear it was something not too serious! ;)

Sent from my rooted Mayan Calendar
[Motorola Atrix 2] shardul.phatak:
Many(almost 90%) of the given tweaks are not present in Build.prop ......

:eek:

how to find them?
[Motorola Atrix 2] Pilgrimtozion:
You would add them to the existing build.prop after saving the existing one. A few of them already exist, but I found I had to add most of them myself. Just remove the hashtag, add it in, and voila!
[Motorola Atrix 2] Apex:
Exactly right, Pilgrimtozion. If the build.prop lines aren't found in your current build.prop file, add them at the bottom, removing the #, or if they are found, just edit the lines, reboot, and you should be good. Don't forget to backup your build.prop before making any edits to your existing build.prop...
[Motorola Atrix 2] Pilgrimtozion:
Let me ask you this: Unplugged at 7:40 this morning, at 10:35 I was at 90% with very minimal usage - phone mainly lying next to me on my desk. At 11:22, I am at 89%. Would you say that is normal?

While I'm asking, is there a free alternative to SetCPU that does almost the same thing? Or is SetCPU SO good that it's worth the investment?
[Motorola Atrix 2] Apex:
The drain you noticed from 10:35 at 90% to 11:22 at 89% shows only a 1% discharge. So that's good. From 7:40 to 10:35 (almost 3 hours elapsed) You only dropped 10%, so at that rate -assuming similar usage throughout the day- you could anticipate 30 hours before fully discharged. Although, this is unlike to speak of any certainty, due to so many variables that can affect the battery, but I'd say it looks fine to me. I get around 24-26 hours on my battery's life on my SGSIII using most all the suggested battery saving tips I list here, so you should have no reason to worry.

As far as a "free" alternative to SetCPU, what are you looking to do exactly? I have purchased SetCPU and have it on my SGSIII, but I don't ever really even use it. I could, however, change the CPU max to a lower frequency if I know I'll not be using the phone for a while, just to save on battery life, but I don't even really bother. Let me dig around and see what other applications I can come across to control CPU scaling, and I'll let you know what I find...

Sent from my rooted Mayan Calendar
[Motorola Atrix 2] Pilgrimtozion:
Well...I looked at the suggestion you posted earlier in this thread (post #36?) and thought it was worth a try. But with my battery life back to pretty much normal, I'm not too worried about it.
[Motorola Atrix 2] shardul.phatak:
is this helpful ?
[Motorola Atrix 2] nootropic:
@Apex_Strider

In the power cycling method, are you referring to the small led light that blinks green when i recieve a message/missed call? Because in my phone i have never seen it light up green when the phone gets full charged. Though it does blink in white for less than half a second when i plug in the charger.
[Motorola Atrix 2] hopeless12:
usefulness

Thanks alot, my batery life has been upgraded thxs to this, now i can get a full day on my atrix 2 D:!!:good:
[Motorola Atrix 2] Apex:
The OP mentions several things there, but nothing of which I find strikingly important...

Sent from my rooted Mayan Calendar
[Motorola Atrix 2] Apex:
I'm not sure if you're asking something here, or just stating your experience. You can check to see if your LED notification light is enabled, and if there are settings that you've disabled to keep the LED from lighting whilst charging...

Sent from my rooted Mayan Calendar
[Motorola Atrix 2] nootropic:
I was trying to confirm if my phone has an issue with the led light not lighting up after full charge & I think it does have some problem.

Sent from my MB865.
[Motorola Atrix 2] krisxda:
thanks.. I was looking for exactly one like this .. just installed.. need to see how it goes .. :)
[Motorola Atrix 2] shardul.phatak:
i think battery level doesn't depend only on "voltage" ..... rather it requires the product VI (volt*current)

my battery voltage reached 4344mV & 1600mA at 90%

then it was gaining only Amperes ..... i.e. it reached 1765mA (full capacity) & showed 100%

voltage doesn't exceed beyond 4.344V & Amperes beyond 1765mAh (regular battery)

same thing about Extended Battery

correct me if i'm wrong .....

reference: "Battery monitor widget"
[Motorola Atrix 2] Waiting4MyAndroid:
I am having the same issue. Phone on OTA ICS. LED does not light up when charger is plugged in or when battery reaches full charge. LED works for everything else including blinking red when battery is below 10%. There are no option in settings regarding LED notifications. Can someone confirm that LED turns on while charging?
[Motorola Atrix 2] Apex:
Okay, so I'm not entirely clear about which settings are available on ICS, since I am on 4.1.2 on my SGSIII, but seems like there should be some kind of setting for battery LED notifications. I was only on ICS for about 10 minutes before soft bricking in an attempt to FXZ to GB from ICSL2, so I'm not up to speed. However, my replacement A2 is on its way and expected to arrive tomorrow. That said, I'll be more of a resource once I get it and update to 4.0.4 (if not already shipped with such). Check to see if you have something like this in your settings:

Sent from my rooted Mayan Calendar running Mayanogenmod 10
[Motorola Atrix 2] Waiting4MyAndroid:
No such menu on the Atrix 2 with ICS.
[Motorola Atrix 2] Apex:
Fair enough. Well, once CM10 is stable for this device, this should be included. Sorry that's not of much help at this point...

Sent from my rooted Mayan Calendar running Mayanogenmod 10
[Motorola Atrix 2] RAD7:
Fast Dormancy

Very helpful thread :good:

I'd read the whole thread and did not see "Fast Dormancy" being mentioned, see http://xdaforums.com/showthread.php?t=1802028 and as of now this is only for SGS3 but with 3G being a massive battery killer, is there any work done for our Atrix 2 on this front that can be shared which will be massively appreciated.
[Motorola Atrix 2] RyanDu95:
My phone is like 63% of the time in 300 MHz mode and 0% of the time in Deep Sleep mode, is that bad? I used the profile you provided for SetCPU
[Motorola Atrix 2] Apex:
What version are you on? You may need to see if you can make edits to the build.prop if you're not getting your device to go into deep sleep...

Sent from my rooted Mayan calendar
[Motorola Atrix 2] RyanDu95:
Found out it was like this cause I was charging! Haha
[Motorola Atrix 2] Apex:
Yeah, that'll definitely do it... ;)

Sent from my rooted Mayan calendar
[Motorola Atrix 2] RyanDu95:
Question, can you put 300 for max MHz in off? I cause for the profile you recommend 600
[Motorola Atrix 2] Apex:
Yes, but the device may be slower in waking back up.. M

Sent from my rooted Mayan calendar
[Motorola Atrix 2] lockmaey:
next tips

we also can disable stock app(like smart action etc..) to save the battery life.

manage app>touch on app > disable

test on stock ics
[Motorola Atrix 2] Apex:
This was covered in the OP, in case you didn't read or simply overlooked it. But, thanks for sharing...

Sent from my SAMSUNG-SGH-I747 using Xparent ICS Tapatalk 2
[Motorola Atrix 2] Kronosthelordoftime:
Hey. I loved the post and found it very useful but I'm having a problem. While your guide helped me improve my battery life quite well, I still have problems. Using the internet (and I'm talking about a 2G connection) for a few hours drains it terribly. I usually use Facebook and WhatsApp only and rarely the browser. I also update apps from the Play Store but that's done at home where I can't run out of charge. I don't use WiFi either. Any idea if these apps are the problem creators? Otherwise, I follow almost everything you mentioned.

Great post, either way. Nicely done. :good:
[Motorola Atrix 2] Apex:
Kronos! First time I've seen you 'round these here parts. Long time, no see - literally! My thought is that you could try to disable Facebook sync and the WhatsApp application as well (if it has a sync option). Any app that relies on network, be it 2G, 3G, 4G, etc. to sync will run in the background, and thusly eat up a good chunk of your battery. And, as mentioned in the guide, try disabling certain things like auto brightness, haptic feedback, and the others if you've not already. Also, try the Watchdog app and Better Battery Stats app to check if a rouge application is causing unnecessary wakelocks. Let me know if this helps, and if not we can dig into some other things. Good luck!

Sent from my Atari Falcon 030
[Motorola Atrix 2] devilhunter47:
What is the safe voltage for clock speed 600 mhz..default is 1200mV..how about 1150??
[Motorola Atrix 2] Apex:
Undervolting your lower CPU frequency tables is fine, if done so at somewhat lesser voltages than that of stock settings. Really, undervolting is more effective when used at the highest frequency table. Also, with the A2, it seems as though there's an instance of "what your phone can do" compared to others. What I mean by that is this, some folks have been able to stably clock higher CPU speeds than others. It's all a trial and error scenario with this phone, just don't set anything "to boot" when making adjustments...

Sent from my Atari Falcon 030
[Motorola Atrix 2] RyanDu95:
I turned my phone off last night with 100% and this morning I woke up with 84 left... Strange.. The phone turned on quickly also but there was the boot screen and i checked cpu spy and it shows no deep sleep and it hit 1200 mhz even though I put max as 800.. Any help? This is to strange. So i was just pondering over those 2 things... battery drain when the phone should be totally off, like shut down, and the CPU going above 800 and going in to deep sleep :(
[Motorola Atrix 2] Apex:
What version are you on, and are you running a custom ROM? Have you checked that (assuming you are on ICS) that you were previously at the 1200Mhz clock speed? Have you tried re-calibrating the battery reporting stats?

Sent from my SAMSUNG-SGH-I747 using Xparent ICS Tapatalk 2
[Motorola Atrix 2] RyanDu95:
I'm on cm10 and i re calibrate the battery every time I out a different one in. I have 2 batteries. One kept in my pocket for backup

---------- Post added at 07:56 AM ---------- Previous post was at 07:23 AM ----------

Checked cpu spy and it's been in deep sleep and not passed 800 mhz :o
[Motorola Atrix 2] Apex:
Has this happened with both batteries?

Sent from my SAMSUNG-SGH-I747 using Xparent ICS Tapatalk 2
[Motorola Atrix 2] RyanDu95:
I dont think so haha, the current battery that ran out is a new one i bot from Frys electronics. Should i be calibrating the battery after everytime i switch them out? or only once?
[Motorola Atrix 2] scampbll:
I was reading up on this because I'm trying to figure out if my battery drain is normal (lost 20% overnight - 6 hours, nothing on but wifi), and found an interesting article. It's for the HTC Desire, but I assume the principles transfer.

http://androidforums.com/htc-desire...ess-widgets-live-wallpaper-battery-usage.html

Guess I won't be using that Galaxy wallpaper, cool as it is...
[Motorola Atrix 2] Apex:
If the mAh values are different between the two batteries, I'd say to have accurate battery reporting stats you'd need to calibrate each time you switched, yes. It's always wise when buying an additional battery to find one that meets the same specs as the original, that way there should be no issues of false or inaccurate stats reporting...

A twenty percent discharge overnight isn't normal, you should see <10% (more like 7 or 8% loss in that time). Check to see if the device is actually going into deep sleep, that could be the issue. Sounds to me like there's a kernel or power wakelock keeping the device from deep sleep. Also, thanks for sharing that link. I may look into doing a similar test on the A2 and posting results here. Just goes to show that the things I saw and listed in this guide are indeed good things to consider when trying to get the most out of one's battery life...

Sent from my SAMSUNG-SGH-I747 using Xparent ICS Tapatalk 2
[Motorola Atrix 2] scampbll:
I installed CPU Spy after the fact, and it showed that it was in deep sleep for 6 hours, which seemed about right. The native battery stats showed just one "awake" blip in the middle of the night. Could it be a bad battery?

Edit: Nah, I'm jumping to conclusions. I think I just used more battery than I realized between taking it off the charger and going to bed, and the 10% increments confused me. I've got a proper 1% battery monitor now.
[Motorola Atrix 2] scampbll:
I know the screen typically takes the most battery, but can you give me an idea of just how much that should be? GSam (formerly Badass) battery monitor was showing as high as 80-some percent over the last few days, even on days when I was listening to music with the screen off for long periods of time. Granted, I've probably been using it a little more than I typically will as I've been getting to know it. But even after the phone was asleep all night, it could show 60-70% screen just from a few minutes of use before and after sleep.

I installed GSam screen dimmer, and that seems to have helped some. Down to about 50% last night.

(To clarify, those percents are relative to the amount of battery used, not the overall amount used. So if other apps were taking more battery, that would lower them too. But when I'm doing anything using the screen, the predicted battery life of the phone drops to about 4-5 hours.)
[Motorola Atrix 2] Apex:
Screen time is relevant to the individual user and how they, well, "use" the phone. What could be typically 'high usage' to one user could be considered 'medium usage' to another. Right now I'm showing 63% screen time usage, with 76% battery remaining. Remember that number is averaged over the course of a discharge, so it may go up or down. Try this: fully charge, then reboot. That will clear the battery usage analysis, and you can have a better idea from full charge to discharge what that screen time is. Again, those numbers will be dependant on how you use the phone...

Brought to you by Carl's Jr.
[Motorola Atrix 2] scampbll:
Yeah, it occurred to me that it's probably too relative to say very accurately. I will try what you suggest tonight. And I'll try to use the phone the way I normally do tomorrow, instead of using more screen time by constantly checking on these things. :)
[Motorola Atrix 2] Apex:
Sounds good. Let me know how that turns out, and what your results are. If it's still high, there may be other things we can try...

Brought to you by Carl's Jr.