yashsingh1/xdaforums huggingface dataset:
[Motorola Atrix 2] bimmerd00d:
I have the extended battery and honestly I haven't been able to get much more life at the end of the day over the STD battery.

Sent from my Atrix 2.
[Motorola Atrix 2] cheetablaze:
I'm putting mine through the gauntlet, when I get ready for bed I'm around 50%.
[Motorola Atrix 2] lilhaiti:
I am coming from an OG Atrix (which I lost) and my Atrix 2 is in the mail. Does anyone know how the battery life on the Atrix 2 stacks up against the Atrix 4G? I was getting pretty good battery life with the OG and was wandering if this one should be as good.
[Motorola Atrix 2] planoman:
I have had both phones and they are comparable for my usage. Usually 14-15 hours with moderate usage.

I have not had it run out on me during the day even on heavy use days. I do charge it every night.
[Motorola Atrix 2] dasfiend:
I had an OG Atrix, and at least for me the Atrix2 is slightly better on battery. It's just a subjective observation, but the A2 seems to be really agressive in turning off the wifi (after locking the screen), which might account for the increased battery life.

I can easily go "a day" (16 hours) and even if I forget to charge my phone overnight, I'll still have 20 some percent left. I'm estimating I use the phone a bit more than "moderate". I use it as a kindle for reading, game playing of course and then taking pictures of my 6 month old son. :)

Again subjectively, but it seems the only thing that's worse battery-wise is talk time. I've only had 2 long (>30 mins) calls so far on the A2 and they were pretty heavy on the battery. On my OG Atrix I never could get the battery to go down from being in a call, not sure what's up with that.

Hope that helps,
[Motorola Atrix 2] Gadgetz:
I charged up my phone last night to 100% at 10pm, took it off the charger, set my alarm on it, alarm went off at 600am, i hit the snooze three times and ended up getting up at 630am, my phone was still on 100% per the battery calibration app I use. About an hour ago it was down to 93%, not bad after being on the battery for 14hrs I'd say
[Motorola Atrix 2] dasfiend:
Which calibration app do you use? Do you like it? Why or why not?
[Motorola Atrix 2] mlurker:
When I bought I played a lot and used wifi (turned off GSM module). It was about 14 hours of usage.

Now with moderated usage I have about 2 days.
[Motorola Atrix 2] Gadgetz:
The only reason i'm using a calibration app is because we don't have a fully functional recovery yet. Normally I'd wipe batt stats in recovery. But for the meantime, i'm using this one

Why don't I like these calibration apps? Back when I had my SE Xperia X10, rooted on WB rom, my phone was stable but my batt stats got jacked up during a flash of a mod so I decided to calibrate my battery (before I knew I could do so via xRecovery) and the result was all bad. After following the process and recharging it to 100%, my battery drained fast as hell....i'm talking 1% per minute!

Then I found out I could (and should) recalibrate via xRecovery and did so and it was back to normal. That being said, I used the above app to calibrate my battery on my Atrix 2 yesterday and so far so good. I am at 70% still and my phone has been on battery power since 10pm last night and I spent at least 1-1.5hrs on 4g during lunch. Few texts, few phone calls....I'd say it's doing pretty damn good.
[Motorola Atrix 2] Hoso:
Do you use any "battery saving apps"? I've seen all kinds out there but don't know which ones actually work and which ones just take up more space on the device and resources
[Motorola Atrix 2] lilhaiti:
I don't know if the Atrix 2 has it or not, but if it does (the OG does); there are battery settings in the settings menu that work pretty darn good. I've heard JuiceDefender works pretty good, although I've never used any of those programs.
[Motorola Atrix 2] thekurrgan:
My battery life has been great compared to other android devices I've used

(Nexus S, Captivate, Inspire4G(The Worst), Atrix 4G)

Typical day for me is: up @ 5AM, the phone is the alarm so it comes off the charger at around 5:01AM.

Configuration is:

1 Gmail account,

1 IMAP Account

1 Exchange Active Sync.

Typical routine:

check email at 5:30 or so for over night activity,

Turn on pandora for about 35 minutes @ 6:15 while I drive.

Typically during the day I'll get at least 75 - 130 emails on the active sync account. Send about 50.

About 100 - 200 text messages.

Facebook i'll check about twice.

I'll use about 1 - 2 hours of phone talk time.

7 or 8 google searches with a tad bit of web browsing at each search.

Another 35 minutes worth of pandora at around 5:00PM.

Random game playing / whatever the 6 year old may do.

at 10PM it goes back on the charger, battery is usually between 30 and 40%.

So far its only been completely depleted during the day once, but that was due to a 4 1/2 hour phone call that took place on top of the other stuff, and GPS nav for bout 90 minutes.

All in all, its a tad bit less battery life than my iPhone 4 was, however I would say it is quite acceptable. None of the other android devices could go the distance for my day, and the inspire 4g was just laughable to the point I returned it after 2 weeks to get the Atrix 4G. The 4G did good, but not as good as the Atrix 2 has so far.

Any phone that makes it through my day I consider to have a great battery. I've ordered the extended battery (motorola direct, non third party) I'll see what the difference is.
[Motorola Atrix 2] Gadgetz:
Damn man, I couldnt imagine being that tethered to the phone. When do you live life?
[Motorola Atrix 2] lilhaiti:
That is one hell of a day...if I received that many emails and text messages on my phone everyday I would throw it!!!

I haven't gotten my A2 yet, but I am really looking forward to playing with it. Seems like a worthy upgrade from my trusty (but lost) 4G.
[Motorola Atrix 2] koriflame:
I average 800-1000 texts a day between me and my girlfriend. I take it my phone would be shattered against a wall if it were in your posession. xD My last phone saw 800k texts before I replaced it.
[Motorola Atrix 2] mtnlion:
wow

Sent from my MB865
[Motorola Atrix 2] Gadgetz:
Sorry bro, gotta do it
[Motorola Atrix 2] koriflame:
That is counting sent AND received btw. & you'd believe it if you watched me. xD
[Motorola Atrix 2] Gadgetz:
That's crazy, even if you texts are just "hey", "hi", "c ya".....800-1k a day, good goobety woo!!!
[Motorola Atrix 2] koriflame:
rarely one word. xD maybe the reason some of the texts are 6 to 10 pages long is because nothing is ever abbreviated. xD
[Motorola Atrix 2] Gadgetz:
Geez, it keeps getting better :eek:
[Motorola Atrix 2] koriflame:
Yes and my first full day of testing was very satisfactory. Off the charger at 7:30 am. Played games, texted the usual amount, watched youtube, and it was still >30% at 10:30 pm
[Motorola Atrix 2] Mytwuk:
Real world for me. I unplug at 5:30am and when I return home at 6:30pm I always have 60-70 percent left. I make about a dozen calls and play a few games throuout the day, my email polls off WIFI every hour and I dont do any texting. I am more than satisfied with the battery life. I had an LG Thrill and I could barely make it home with any charge left at all.
[Motorola Atrix 2] thekurrgan:
Life happens when my work day ends..

As far as being overly tethered, I coordinate a bunch of efforts between 15 people in my department, and am the go-between for all other departments and mine.

We have a work order system that sends stuff around for change management and what not, each sending an email that accepts an email approval, then marks it as done and sends it back to the technician with an "OK TO Perform said work" note.

Text messages vary depending on the happenings.

Over all, its not all that invasive IMO. Much better than it used to be when I had to spend an hour and a half each day going through all of this email. Now I handle them individually in about 6 seconds, saving me hella time.

My phone is a big tool, since it is for all intents and purposes my office.

Thats why it sounds so busy / bad.

---------- Post added at 02:53 AM ---------- Previous post was at 02:47 AM ----------

Agreed. 800 - 1000 texts a day equates to around 140 minutes a day @ 10 seconds a text.. (Read and send)

At some point it must beg to question, why don't you just call the damn person?
[Motorola Atrix 2] koriflame:
I'm not saying that to like "show off" or anything. That's just my average usage. Assuming we both send and receive the same amount. That total was sent and received. Which means on average, I SEND about 400-500 a day and receive 400-500 a day. We do call, and have several hour long conversations. On those days, obviously there are far less messages. I use *data# to keep track, which displays both sent and received as a total. Therefore, I can't calculate the exact amount sent and exact amount received. But the point is, the battery holds up to the task, it's been exceptional compared to my backflip. I should post a pic of the keyboard. Nearly every key is splitting in half.
[Motorola Atrix 2] kindacrazyazn:
do you guys wait for the battery to completely die before recharging or do you start charging at a specific percent? i just got the phone and battery life has been amazing but i just want to follow "proper battery etiquette."
[Motorola Atrix 2] koriflame:
Technically, it shouldn't matter when you start and stop charging. The phone will prevent itself from holding absolute 100% charge to prevent wear on itself/the battery. These batteries have no "memory effect". So ultimately, these batteries can be charged at any point to any point without any consequences. The device itself also prevents over-charging. It's kind of a fool-proof system. There is a longer, better worded writeup somewhere.
[Motorola Atrix 2] kindacrazyazn:
Thanks. That helps a lot. But we could always delete the battery history once we root and have clockwork running. which is hopefully soon. Or even use on app like mentioned before.
[Motorola Atrix 2] thekurrgan:
Thats not exactly accurate..

"Memory" from a older batteries is a term that while doesn't technically apply to LiIon batteries, its effect is basically the same.

If you for example, store a Lithium Ion battery @ 90 or better % charge for about 3 months, it will be about 10% less in capacity. However, the same battery stored at 50% charge, will not loose any capacity for up to a year. Same thing goes for a completely dead Lithium Ion, however storing at 0% (or what is reported as 0%) for about 6 months will cause up to a 40% loss in capacity. This is why almost all new batteries come at 50% charge or there about.

The same premise holds for keeping a phone constantly charged. If you never let the battery go below 90%, its not all that different from storing it at that charge level. The batteries overall life time is reduced. Ideally, it should be let to run down to 30 - 40 %, then charged. recharging at this point will make the battery live the longest. However its not as important on LiIon batteries that they are charged to any certain point, but that they get a charge.

I suppose to summarize, the only weakness of LiIon batteries is that if you spend too much time at 90% or better, or too much time below 10%, the battery is degraded rapidly.
[Motorola Atrix 2] koriflame:
Right, just speaking off the top of my head of what I remembered for the most part. For daily. The optimal point to charge as you say is exactly what most people's battery level is at by the end of the day. So basically you don't have to worry about it. Noone in the right mind is going to let an activated phone sit at 0% for an extended period of time, the only worry is trying to keep it at peak charge.
[Motorola Atrix 2] jazzno814:
i went to sleep last night with a 40% charge and woke up 6 hours later with a dead phone...so i must have some crazy business running rampant on my phone...
[Motorola Atrix 2] kindacrazyazn:
I feel like i am having a problem with my battery. i just charged up my phone to 100% and about 20 mins later it is now down to 90%. i feel this isn't right and i am not sure what i should do. i am running the maximum battery saver battery mode and that doesn't seem like it is doing much. i have only had the phone for about a week, and my battery used to last a lot longer than that.
[Motorola Atrix 2] koriflame:
They don't stay at peak for long, wait and see if it decreases at a more acceptable pace from 90-0%
[Motorola Atrix 2] voodoomurphy:
10 hours and I'm down to 18%. Cell standby and WiFi are both at 28% of usage and Phone Idle is 26%. Am I doing something wrong?
[Motorola Atrix 2] svtfmook:
battery doesn't have a "memory" per say, but, android does by logging charge and discharge points in batt stats. it is best to charge it fully (or when it stops) and not to charge it until it's empty.

---------- Post added at 08:05 AM ---------- Previous post was at 08:03 AM ----------

mileage will vary depending on location and signal strength.

i run google voice on my android devices and i never get anywhere near the battery life others run on the same device/rom/under volt that i run. mainly because i get a really crappy signal at work and my phone battles all day long to stay connected. i drop something like 10% per hour here (on a nexus s and x10).
[Motorola Atrix 2] lilhaiti:
After driving my phone for a few days, I must say that I am pleasantly impressed by the battery life of this device, it will not die. I am a moderate user (my usage patterns vary with my mood) and I can go all day and still have a good 30% left in the tank. And that last 30% can take some time to drain out. The battery life of this phone is a little better than my old OG. I run circles around all of my friend's phones.
[Motorola Atrix 2] kindacrazyazn:
well, since that freak out that i had yesterday i am very surprised with the outcome. As people said the first 10% always drop really quickly which it did and now from 90% to 20% it has lasted about 23 hrs. i never thought that was going to happen.

i had the phone running since i was sleeping till i was awake on maximum battery saver which was took it to 80%. that was from around 22:00 to about 7:15. then i turned it to the nighttime mode and i have been texting for a good amount of the day. the phone has been used for about 2 hrs today. i am thoroughly impressed though by this battery. i couldn't ask for a better battery life on an android phone.
[Motorola Atrix 2] cheetablaze:
You are correct about the first 10% because the phone will not fully charge the battery. Fully charging is actually really bad for it, to technically it probably stops around 95-98% capacity. The phone will of course report it as full but its really not.
[Motorola Atrix 2] svtfmook:
10h 3m 11s and i'm in the 70's

7 hours of that was me sleeping

the building i work in blocks out signals and data is killing my battery
[Motorola Atrix 2] katamari201:
How does the Atrix 2 compare to the Galaxy S II? Sensation or Amaze 4G? A Windows Phone? Is it like Blackberry good? Apple? Has the phone gotten an update since launch to fix bugs/optimize or anything?

I'm seeing several people who seem to use the phone exclusively on Wifi. Was hoping if you could comment on this setup. Since I'm on T-mobile and have no data plan, I will be on 2G voice only. I am a super-light user, almost don't even need a phone, but hey its good to have one! I make one 30min call a day. Otherwise, no text, data all off. Brightness near lowest. Basically mostly on cell standby. How many days can I expect? I might occasionally turn on the wifi to google something for a few minutes, then turn the wifi off right after. Doing this maybe twice a day, how would it impact the number of days I can stretch it?
[Motorola Atrix 2] RaXxaa:
My light use and background data turned off and cpu underclocked

iam at 2d17hrs at the time of posting and 40% left
[Motorola Atrix 2] katamari201:
How low do you underclock it and does it impact performance much? Does it make it more unstable? I wanted to avoid installing roms or anything of that sort if I could....
[Motorola Atrix 2] kindacrazyazn:
I thought you need a new kernel to underclock. Or did you root and then use setcpu or something like that?
[Motorola Atrix 2] RaXxaa:
I just rooted and installed cpu master free, I usually run it on 600mhz max and its slightly noticeable but no crashes and no bugs no problems, and when i dont need to use much just look for msgs like at college then i run it at 300mhz, currently iam running at 300mhz.

My battery display is at 40% and i have ran 3d.3hrs.30mins at the time of posting
[Motorola Atrix 2] kindacrazyazn:
Wow. That is kind of ridiculous lol. I personally would go alittle higher on the high end but that is just I prefer alittle more performance.
[Motorola Atrix 2] katamari201:
Well there is something to be said for having twice the battery life for only a marginal and maybe imperceivable hit on performance. :D
[Motorola Atrix 2] RaXxaa:
3d.10hrs.40mins 30%left, again thats just cuz i have not had much use on my atrix atm. iam likely busy all day and just attend and recive calls, some times play a small game 5 mins maybe but all data is off unless i want to download anything. Display is not all dim and battery options are at max batt saver.

Real world for avg user at 600mhz would be no more than 2 days at best
[Motorola Atrix 2] RaXxaa:
4d 5h 53m 20%left XD
[Motorola Atrix 2] kindacrazyazn:
You have to be kidding me.
[Motorola Atrix 2] katamari201:
My Samsung Wave could do that. It was a bada phone. Had everything turned off and stuff. Everything was stock.

I wonder how much undervolting saves in power. Underclocking can only do so much. With the screen off and everything close to dead the main battery killer will have to be the cell standby on 2G. What would it be with even that turned off and using wifi calling only? Dunno if you can do that.
[Motorola Atrix 2] RaXxaa:
I dont think undervolting would make a difference as it would increase the amp drain to produce the same power. But if you are looking to undervolt a 300mhz prossesor without keeping the normal power then that would severly freeze the phone.
[Motorola Atrix 2] Gadgetz:
Thats def not normal. What are your settings? My phone stays at "100%" for hours
[Motorola Atrix 2] kindacrazyazn:
The first 10% is sometimes iffy. Sometimes it drops rapidly and sometimes it drops slowly but from 90% to 20% the decrease in power is a lot slower. I don't have to have the phone displaying 100% so it isn't too bad. And someone said that keeping the phone at 100% isn't generally good for the battery.
[Motorola Atrix 2] Gadgetz:
Just a FYI, just because your phone says its 100%, it's lying to you. When I charge my phone, the phone will tell me it's 100% but my circle battery app can get all the way down to about 94% before the phone will show the next step down, 90%. So like I said earlier, my phone shows 100% for at least 2-3hrs....but I also don't leave wifi or data on at all times. Things like that will definitely cause you to lose power quicker.
[Motorola Atrix 2] Rickinsav:
Sounds typical for my use too.
[Motorola Atrix 2] JDtech1701:
Alright, would being off charger for roughly 6 hours, having sent/received roughly 100 text messages, and browsing Facebook for roughly five minutes warrant my battery being at 50%? Based on the specs and all the comments, it seems like something is going wrong.
[Motorola Atrix 2] Gadgetz:
We wouldnt be able to say yay or nay without knowing what all your other settings are
[Motorola Atrix 2] jacindc:
Perhaps you have a runaway widget, or just too many of them? I was alarmed to see my new phone go to 50% within three hours of waking up yesterday, having hardly used it at all. I deleted a bunch of widgets, ran the battery to zero (which I'll note took until 1 am, so clearly I fixed something), and now with very light use for six hours I'm still at 90%.
[Motorola Atrix 2] JDtech1701:
Widgets? Uh...I've got the weather one, email, tasks, sticky note, and the MultiFrame app widget.
[Motorola Atrix 2] kindacrazyazn:
Are you using the performance batteey mode? If so that could be what is causing it because it updates like no other and isn't restricted at all. Try using the night time battery saver mode. Or even the maximum one.
[Motorola Atrix 2] JDtech1701:
I am on maximum. And I've got JuiceDefender enabled and on the balanced setting.
[Motorola Atrix 2] Gadgetz:
What are your data and wifi settings? Do u have push notifications? Background data enabked? GPS enabled? Location services enabled? Screen brightness? Screen timeout? So many things effect battery life, let us know what ur settings are and we might be able to help
[Motorola Atrix 2] JDtech1701:
Background data is on, Data is enabled, Data Saver is on, Wi-Fi is on GPS is off, location services disabled, screen brightness and time out are on the battery saver setting, I guess I get push notifications from Facebook (that little sign looking icon) and Yahoo. I understand that some of the data stuff is a battery drainer, but it looks like some do a lot more than I yet drain at a slower rate.
[Motorola Atrix 2] jacindc:
I'd suggest the long painful slog of disabling pretty much everything (including the task managers and battery managers that are supposedly helping), and put things back in place bit by bit to see where the hit starts.

(I'd be suspicious of the Facebook app--what a hog.)
[Motorola Atrix 2] JDtech1701:
Alright, I've disabled Facebook notifications and JuiceDefender, we'll see how it goes from there.

Also, I've seen stuff about kernels and calibrating the battery...would that be of help? While I'd like to call myself technologically literate, I'm a bit behind in the smartphone realm.
[Motorola Atrix 2] Gadgetz:
The kernel thing won't help you at all cause the bootloader on this phone is still locked. Calibration might help.
[Motorola Atrix 2] JDtech1701:
Alright, what would you suggest for calibration?

And it was starting to get sluggish, so I went ahead and factory reset it and made sure that Data Save and Maximum Battery Saver are enabled and that GPS and all that is turned off. Once I download the Facebook app again, I'll make sure that the notifications are turned off.
[Motorola Atrix 2] JRW 28:
The only thing I have on mine is battery mode to nighttime saver. Both Facebook and gmail sync automatically. Data saver is disabled. I don't run anything with the built in task manager. I'm a moderate to heavy user and get 12-16 hrs easily. Using a task manager usually does more harm then good. Juice defender is usually a drainage also.
[Motorola Atrix 2] JDtech1701:
Yeah, it's running a lot better now...don't know what it took exactly. But if calibration helps, I wouldn't mind being able to squeeze even more out of the battery.
[Motorola Atrix 2] JDtech1701:
Alright, the drain is slower, but still not where I thought it would be at. I saw somewhere that sometimes it takes a few complete charging cycles to start getting good performance and I saw somewhere else that it helped to drain to 0%. And again, the calibration. What do you guys think?