yashsingh1/xdaforums huggingface dataset:
[myTouch 4G General] royhobbs:
Battery life update

Ok folks, want to chime in and join shlongwoodian. I was having horrible battery life (check my numbers in this and other threads), suspend process was the main culprit and it was random. Most days were really bad, a couple of days were really good. I tried usb debug, brightness, sync-settings, almost everything possible suggestion I could find in 3 or 4 different threads on this topic. The last time it happened I had almost everything turned off on my phone and brightness was down to the lowest setting. I wasn't even running data or wi-fi all day and it was still ripping through the battery in about 7-8 hours. I made like 2 phone calls and a hand full of text messages that day.

To me, restarting the phone when this happens is unacceptable, I would rather get an iPhone frankly, and the fact that the battery was getting really warm on top of that seems dangerous. I made the decision to return it on the last day of my 14-days after purchase. I exchanged it for a new MyTouch 4G because I do like the phone.

I should have documented this but I believe this new phone is possibly a different hardware revision. It does seem to have a slightly different camera button as some have mentioned, a little more recessed and a different texture on the button.

I hope to not jinx myself but so far, this is a completely different experience for me. I have the same apps, and the same syncing, actually more stuff on this one than previously and I have currently gone 1day 7hours on my recent charge and have about 9% left on my battery. I easily made it through the day yesterday including several phone calls, texting, listening to music, playing angry birds, using the GPS for a few minutes, twitter updates and some browser usage. On my old phone that would have killed it easily in 8-10 hours or less. I also don't seem to have the same heat issues as before. It will warm up if I run it hard, but not nearly as easily.

So my two cents is that I had a bad phone, and so far (please stay) I have a much better phone now, with the same software.

Good luck to all, I think if you're having the same problems I was you should return it or get warranty service on it. Just my opinion.

Thanks to all for the great tips and advice, I think I could really extend the battery if I want to, but for now I am super pleased.
[myTouch 4G General] insaneoctane:
Update (display set to 11% brightness, no SIMCARD):

On for over 7 hours and I'm at 80% battery life.

On for over 8 hours and I'm at 70% battery life...it's definately NOT linear!

On for over 9 hours and I'm at 70% batter life still

This is good news for me- it is really telling me the secret to long battery life on MT4G!!!!!!
[myTouch 4G General] mingkee:
I think the battery needs to be trained/conditioned.

It was pretty bad on the first week, but after I received 2 more batteries, the situation changed.

Now I can play up to 4 hours streaming audio all the way with some internet browsing over 3G.

Isn't it good?
[myTouch 4G General] bchen03:
I've had mine for a week, and for a few days it would lose half its power in about 4-5 hours. Now I recharge when its below 5%, unplug at 100%, and restart. Yesterday I got 20 hours with light usage, couple calls, google maps w/GPS, youtube, internet. In fact, I was purposely trying to run it down so I could recharge before I went out!
[myTouch 4G General] insaneoctane:
Owner for just about a week. Full charges everynight

Today my battery stats are as follows:

15hr 47m since unplugged

Up time: 15:52

Awake time: 6:02

67% Display

07% Cell standby

05% Android System

05% Phone Idle

04% Internet

04% Maps

02% Android OS

Display says time on 4h 33m

Battery just kicked into <10% range

I think that my display was on minimal to no brightness for the majority of this
[myTouch 4G General] Ghost430:
off the charger at 9am and im at 10% by 6pm.

Brightness to 11%

GPS use for 10 min.

Some web browsing.

handful or more phone calls

lots of texts

downloading an app

wifi hotspot for few minutes

idk it its any good? i mean for what i did im impress but i would like for it to last til maybe 9pm?
[myTouch 4G General] mwelliott:
Some of you have fantastic battery life compared to my phone. Mine is a rooted stock rom.

Typically I'll charge mine before going to bed, so when I wake up i'm at 100% around 8am.

Over the course of the 8 hour day i'll download a few apps (small ones, <1-2 megs each). Maybe send a few texts, and read/delete some emails. This would account for maybe 30~ minutes usage over that 8 hour period. No phone calls.

When I leave to head home around 4:30, my phone typically has 10-15% battery.

If it's not the suspend process utterly destroying my phone, it's the display. But usually suspend.
[myTouch 4G General] Jayrod1980:
If I have a good signal, I can have the screen on agonist non stop browsing and texting for hours, even after having in standby for 12 hours while im at work.

One caveat though, it only does this when I run iced glacier rom. If you like my sense, put it on your phone, it seems to make the phone run like it should have right out of the box
[myTouch 4G General] hkbladelawhk:
On the charger half the day

I think I've just become custom to leave mine charging when not using it. Regardless the day, mine gets heavy usage from email and text. 3G (how the hell can you tell if it's on '4G'?). Facebook. Google Sync. SMRTGuard Sync. Frozen HTC Sense. Temp-Rooted, running SuperPower. Email Checks every 15-30 mins. Web Browsing can range.

It does quite piss me off that they didn't make the battery more along the lines of a 2500, especially since it's this bad.

We shouldn't have to "train" the batteries, the batteries these days aren't like the old NiCads, where they have memory, if the battery life sucks now, it's likely gonna suck no matter what. They just need to make a better battery, period.

I'm on my phone ALL day, I don't let it go below 40%, specifically because I use it for work, and I hate when friends let their phones die on them.
[myTouch 4G General] insaneoctane:
Owner for just about a week. Full charges everynight

Today (12/15/2010) my battery stats are as follows:

12hr 33m since unplugged

Up time: 21:21 (charged ON last night)

Awake time: 8:46

73% Display

05% Internet

05% Cell standby

05% Android System

04% Maps

03% Android OS

03% Phone Idle

Display says time on 4h 48m

Battery just kicked into 3% range

I think that my display was on minimal to no brightness for the majority of this

I'm experimenting with 2 new apps.

* Switchpro (shows batt% on desktop) and helps me keep easy track of what's on and off (and toggle)

* JuiceDefender

We'll see if they help.

At some point here, I'm going to give up and just start charging at work...
[myTouch 4G General] sapo916:
Messing with setcpu has been getting me good battery life for close to a week now. Here is my last session before I charged it. This was essentially only 1 day of usage but I fell asleep without charging the phone the night before and the night after. It has been performing very well in my opinion.
[myTouch 4G General] 2012iawait:
what is urs setcpu settings? and what rom are you on
[myTouch 4G General] cenobyt:
15 hours 45 minutes and the battery just hit 40%. I'm trying a combination of apps to help battery life.

At home I get a crappy cell signal so I have to have wifi on and I use wifi calling. I run SuperPower. It auto kills my wifi within 5 minutes of leaving my home/dropping my wifi connection. It also puts the phone into snooze mode killing a bunch of stuff between 1:00 am and 6:30am.

I then use Quick Settings and Quick Battery. I've reduced my screen brightness, killed GPS and Bluetooth. I now have quick access to flick wifi on when I get home.

I used my phone for several calls, text messages, navigation and the constant updating of two email accounts. I also synced all my photos via dropbox and updated all my apps.
[myTouch 4G General] cenobyt:
16 hrs 51 mins and it's only dropped 1%. Wifi and Wifi calling are on, email is updating and I've texted. I'm also adding apps to perform my first root.
[myTouch 4G General] insaneoctane:
Thanks for the screen snapshots.

I noticed your screen was only on ~3 hours during this 38hr run. That seems like VERY light usage in my book.

The best I've seen has been almost 5 hours of actual "screen on" time and that takes place over 12-15 hour period.
[myTouch 4G General] insaneoctane:
I'm NOT impressed with JuiceDefender!

Could be coincidence, but today was my worst yet.

This morning I filmed about 1 minute of HD video and used Google maps with GPS to give someone directions.

Surfed for about 1 hour.

By lunchtime I was in the YELLOW!

Showed off a couple things: Slice it! Stadium falling apart on YouTube and took 2 photographs.

I literally had to borrow someones micro-USB PC trickle charge to get me back into the green for my trip home.

Surfed for about 1 hour on the way home

Hit red when I got home (about 11 hours after I left in the morning)

I'm guessing my display "on time" was 3 to 3.5 hours and it was done.
[myTouch 4G General] CBConsultation:
Sorry. I'm calling bluff. There is no way your stats are true unless you've had your phone turned off.

Sorry. I don't usually call someone out but that is garbage.
[myTouch 4G General] shlongwoodian:
I agree w/ CBConsultation. I have no doubt 15-16 hours with normal use - I'm getting that all the time. My battery gets down to anywhere between 20-40% after 15-16 hours, depending on how much Angry Birds I've played.

But 15-16 hours w/ ANY usage and only 1% drop? That basically means your battery is lasting what, like 7 days? :D
[myTouch 4G General] CBConsultation:
Not to mention they hadn't even rooted yet. So no setCPU app running either.

Sorry. Just not possible unless the phone has been turned off. In which case it wouldn't be use; it would be non-use.

I really don't like or enjoy calling anyone out, but there comes a time when you just have to say enough. I caught another member in another thread lying about running Gingerbread on their MT4G and called them out. Then they admitted to lying!

I have been documenting my battery usage with setCPU and other tweaks so as to provide some valuable guidance and testing variables.

This claim was ridiculous.
[myTouch 4G General] shlongwoodian:
I am quite happy w/ my battery life and it just goes to show, those who take care of their stuff, still have stuff.

I'm rooted, but that's it. 100%, completely stock ROM. No SetCPU, no battery savers, nada. I don't care what platform you're running - Windows, Mac OS/FreeBSD, Ubuntu, etc. - if you keep you're $hit lean and mean, it'll be happy.

I am a

user

of my phone - I use it all day long. I take pics, shoot 720p video, do the Faceberkz, take screen shots, play Angry Birds, read XDA, play Angry Birds, make phone calls, do video chat, play Angry Birds, etc. I am consistenly getting well over 12 hours - usually around 15-16.

If I don't play Angry Birds or if we're busy all day long (and I only get to do texts, FB, Gmail, etc.) it's not uncommon that I get over 24 hours of battery life.

Oh, and I use live wallpaper too - specifically, the native Day/Night one, the native Sense bubbles and the Nexus one. My brightness is controlled by the Power Control widget and I always have it in at least the "2" (of 3) position.

I am NOT experiencing the /suspend or /init issue, which makes a HUGE difference. My fiancee was experiencing this and if you don't catch that /suspend process, your battery will be gone by lunchtime.
[myTouch 4G General] CBConsultation:
I am also running the stock ROM while rooted. I use setCPU and have set several profiles (screens posted previously in this thread) and have set the sync times and other things to what were acceptable intervals for me.

I have consistently gotten around 36 hours of use from my MT4G with about 8% battery remaining.

But again, battery life is all relative. Every single person will experience different battery life. The apps you have installed, the amount of time you spend on it and the time you spend on/in each app, distance from cell towers, distance from Wi-Fi sources, settings you have for every app and things like sync and what not.
[myTouch 4G General] shlongwoodian:
Allz I know is, my rock is getting ridiculous battery life.
[myTouch 4G General] vw671:
your SetCPU profiles are seriously underclocked! No wonder your getting good battery life. 368Mhz Max @ 65% battery... that's too slow for me.
[myTouch 4G General] CBConsultation:
Really? :rolleyes: What are you using your phone for that would require it to run at top clock? I use mine for a phone, email, texts and some other misc. stuff. I don't play any games (or even have any installed). All my necessary apps run great with my settings.

AND.....I get great batt life!
[myTouch 4G General] vw671:
I have no issues with charging my battery every night. My requirement is the phone makes it through the day the whole day without a recharge under medium usage which it does. I bought a 1Ghz phone for the speed and want to use it at full speed no matter what application I am using. To each his own I guess.
[myTouch 4G General] shlongwoodian:
You shouldn't have to re-charge. I can say without a doubt, that any stock MT4G under medium-use will last 12+ hours. That's with live wallpaper, Gmail, Facebook, etc. syncing and medium brightness on the display. Shoot, even a little Angry Birds in there.

Otherwise, something else is going on - i.e. you're either REALLY using the phone a LOT

or

you are experiencing one of the out-of-control-process issues (suspend or init).

I can say this because I have 5 MT4G's sitting right here with me...

Each one of these has been run as stock, un-rooted or rooted - that's it. No ROMs, no app removing, nada. Just regular old common sense as far as which things are syncing in the background - and no SportsTap apps or crap like that.

I've seen all of these phones make it 15 hours a day with totally normal use. I'm not talking about keeping it in my pocket all day long, I'm talking about using the phone. The only time any one of them hasn't, is when my fiancee's Google account was on any of them and she ran into the suspend issue.

That being said, my fiancee's father has the Evo and has its dispaly on full brightness (he's out in the sun all day). He is constantly using his phone too, so I'm not surprised he's not getting through the day without recharging/swapping out batteries.

I'm just trying to be very specific and clear here - if you have a MT4G, use it "normally" (as best as can be stated) and you are NOT experiencing the suspend or init issue - then there is absolutely no reason why you shouldn't be getting greater than 12 hours a day of battery life.
[myTouch 4G General] vw671:
I think you mis-understood me, i re-charge ONLY once every night (*once a day). Which is greater then 12 hours of life in between charges (~13-15hrs). And I consider myself a pretty heavy user.
[myTouch 4G General] shlongwoodian:
I absolutely did, my apologies.
[myTouch 4G General] vw671:
No problem, nice collection BTW....though you might have a phone "problem":D
[myTouch 4G General] Chadastrophic:
I'm permarooted the easy way, NOT the more advanced way that SIM unlocks the phone, removed the typical bloatware, have set cpu profiles, launcher pro, with stock ROM and Kernel.

Up until yesterday unplugging my phone at 7am CST I'd be down to 35% by this time (3pm CST).

Last night I used Titanium Backup to freeze a few more: [DESKTOP] HTC Sense 1.00, Faves 3.0.31, and Faves/Family Widget 1.0 . I'm now at 72% and giddy as a school girl at Christmas.
[myTouch 4G General] shlongwoodian:
Oh I'm sick, I know it - there's no helping me...lost cause. :p

Actually, these are all from the "great MT4G SH vs. SO display debacle of 2010." The only ones staying with us are the white one on the left and my fiancee's plum one, shrouded in hot pink at the right. I swear, the hot pink isn't mine. Seriously. Drop it already!
[myTouch 4G General] Psyclism:
SystemPanel to the rescue!

Last night I installed an app called "SystemPanel" by NextApp. I purchased the full application which allows you to monitor and track over time the CPU use of individual applications on your phone.

What this did was give me quite granular level information as to what was using CPU (and therefore battery) and when. I found that Handcent SMS was sitting there burning between 5-10% CPU all day, every day. I send very few text messages, so nuking that app was a simple solution. I installed ChompSMS instead, and it's sitting there utilizing 0% CPU at idle, just as I'd expect.

I also killed a few other unused/redundant applications that were just sitting there idling and burning a few % CPU. Watchdog was one of them. If I need them later, I'll just reinstall.

I've also found that you can monitor certain applications which for some reason appear to sometimes hang and needlessly burn CPU cycles. Like this morning I saw that PingChat had been sitting there using an average of 6.25% CPU for 8+ hours. I killed the app (which restarts automatically), and ever since it's been sitting there using 0% unless I bring the app to the foreground and send messages.

After my housecleaning, my "at idle" cpu usage went from an average of 10% to 1.9%.

What does this mean for battery life? Well, this morning I read all of my 40+ morning email messages, made several phone calls, sent/received several PingChat messages, caught up on my twitter reading for the morning which includes opening well over a dozen websites in the browser, read a few news clips AND took a few pictures over the course of approx 2 hours. Previously my battery would be drained by at least 10% after all that activity. This morning, before I plugged it in here at work, my battery was still at 99%. Yes, this is anecdotal evidence at best, but at first blush this is a HUGE improvement over what I'd been seeing consistently over the past few weeks.
[myTouch 4G General] ArcticWolf91:
Something I found that helps my battery life is this:

Go to Settings then to Accounts & Sync. Here turn off syncing for the things you don't use. For me I only left Facebook, Weather and Gmail.

Second, if you use the flip clock widget, tap it to open the weather, then press the menu button and then hit settings. Uncheck the box that says "Update when opened" and change the update schedule to, say, every hour.

That has given me a little boost in battery life. Hope it helps. :)
[myTouch 4G General] bagz27:
If you're one of the people that charges their phone overnight, do you turn the phone off while charging, or leave it on? I'm just wondering if it matters when you're conditioning your battery.
[myTouch 4G General] vw671:
me=Leave it on.
[myTouch 4G General] shlongwoodian:
Me on too.
[myTouch 4G General] jriv:
Compared to the hd2i had this phone gets way better battery life

Sent from my icey cold glacier 4g freezing every phone in its path.
[myTouch 4G General] cenobyt:
You miss read my quote...it was down 1% from the previous hour after a good amount of use (see previous post). Total left on battery after about 17 hours was about 38%.
[myTouch 4G General] XfooYen:
I read your quote. No one "mis read" it. You mis quoted. You clearly stated you had only dropped 1% after 16+ hours of use.

Swyped on my rooted MyTouch4G
[myTouch 4G General] cenobyt:
Go back and reread the post above it. It says 15+ hours and 40% left. Then I posted about an hour later and saying now 16+ hours and -1%. So taken by itself yes he may have thought that, taken complete as two posts one above the other and it was misinterpreted.
[myTouch 4G General] OnE ShoT:
If your having problems with battery life then flash the CM 6.1 ROM it did wonders to me. My battery life almost double using this ROM with set cpu profiles
[myTouch 4G General] zainghani:
Your settings?

Hey apple_g! I'm having battery life issues with mytouch 4g as well... would you mind sharing with us your battery power saver settings?

Thank you!
[myTouch 4G General] xdd:
Battery life has been on the lower side for me.

Can everyone quote your maximum screen/display "ON" time ?

Saying something like, it still has 40% after 10 hours or 15 hours is not very useful. Usage patterns vary a lot between users. What one might consider heavy might be moderate usage for others.

Display on time probably gives the most accurate usage time.

For me, with brightness set to 50%, web browsing over wifi for about 4 hours gets the battery down from 100% to about 21%.

Hopefully this will improve after a few recharge cycles.
[myTouch 4G General] faux123:
Check out my post. I have solved the mysterious battery drain on the MT4G.

http://xdaforums.com/showthread.php?t=872839&page=3

Now MT4G last almost 2 days on a single charge with regular use.
[myTouch 4G General] mattjsorensen:
I was having horrible battery life (Android OS/Suspend issues). I swapped my phone for a new one and thought I would try an experiment by very slowing configuring my phone to test how different apps affect discharge times. Eventually, I gave up, but I did find that under light use the stock ROM can last a very long time. I was getting 3 days (averaging about 1 hour of web browsing per day and 10 minutes of phone calls). I know that is much less usage than most users here, but I was interested in understanding screen=off discharge (not active use).

I started the experiment with a totally stock ROM. I didn't sign into my google account. I just added 10 bookmarks to the homescreen to the services I use most (gmail, google reader, evernote, rememberthemilk, etc). I did enable usb debugging. Other: data/3g=on, weather sycning=on, t-mobile syncing=on, wifi=off, gps=off, bluetooth=off

New phone from Costco

26h (started with 4/10 bars)

37h

78h

Installed OTA

63h

81h

Setup Google Account

60h

aborted discharge; suspend drained lots of my battery in 1.5h; installed watchdog

40h (used GPS for 30min)

Here I changed my process to:

- charge every night

- record the percent of battery remaining at the end of the day

8/10

8/10

Setup Exchange

8/10

7/10

4/10 (heavy use today)

Rooted and installed CM 6.1

- Configured: gmail, exchange

- Installed: Google Reader, Calendar Pad, Evernote, Remember the Milk, and a few others

5/10

4/10

5/10

So, with a stock setup, I was only discharging about 20% in a 14 hour "day". Now under the same usage, with CM 6.1 and several apps syncing I discharge 50% in a 14 hour "day".

So, I assume those syncing apps are costing me a 30% discharge per 14 hour day. Not great. I wish I had a better measurement of exactly which syncing apps were taking that 30%, but this experiment took about 3 weeks (and I was sick of not having my phone setup the way I want).
[myTouch 4G General] ELBdelorean:
I get about 9-10 hours with Wi-Fi, 3G, GPS, and auto brightness. I also usually have Skype and Advanced Task Killer running in the background.
[myTouch 4G General] nmw407:
So far I'm consistently getting 12-15 hours battery life from Fully Charged to about 20% capacity. This has been constant since I got the phone to now, a month later. Usage is normal, with GPS on, Wifi on, low brightness (expect outdoors, where auto-brightness takes over), network always on, GSM/WCDMA auto, and syncing every 3 hrs or so.

I've decided I'm done worrying about battery life. I'm just going to use it as normal, have a charger at work, home, and in the car, and charge it as often as it needs.