[Q] Carat and battery life - Samsung Galaxy Nexus

Anyone use Carat at all? It's a UC Berkeley project/app that runs only when you launch it, looks at your open apps over time and identifies apps you should kill or restart right now, apps that are buggy on your phone (and thus using more than the normally aggregated across all Carat-running phones amount of battery life), apps that are known to use a lot of battery when running.
They also assign you a score out of 100 they call a J-score, which is supposed to be a measure of your average battery life compared to the average life of all other phones or devices running Carat. On official ICS I used to get a J-score of 89 or so, which was not bad at all. I'd hit low battery about 5-6PM every day (no 4G, no Bluetooth, screen auto bright, Wifi off except when in range of a known hotspot, then on as much as possible, never autosleep). Ever since I updated to official JB, I get a J-score of 12.
So! I'm convinced it's software, since my hardware and usage patterns haven't changed. Problem is, of course, there aren't any apps that ever show up in my battery life system meter (see attached).
What do you think?

Related

Battery draining issues

Hi everyone,
I bought my new Desire two days ago, and im noticing a really fast battery drain.
I had a Hero before, and although it had a smaller battery, i would charge it every two days.
When i check tha battery usage, i can see big percentages in cell standby, phone idle and android system. (Its where the percentages should be really low imo..) Things like display, bluetooth etc that were supposed to drain more my phone's battery have much lower percentages..
Maybe all this comes from the snapdragon cpu??
I also have 3g off, always on mobile switched off and brigthness to a really low level (although i think amoled displays dont drain the battery that much)
My battery will last one day the MOST..
I know that the new battery has to be charged a few times before it has its full potential, but i think that somehow battery is getting drained..any tips???
Thanks,
T.
I to have this same issue if anyone has any ideas on this would be great
Sent from my HTC Desire using the XDA mobile appication powered by Tapatalk
You just need to relax
My Desire couldn't get through even one day of usage when I first got it. Several things contributed to this:
1. The battery is not fully conditioned
2. The device is new so I want to play with it all the time. I'd turn it on randomly for no reason whatsoever.
3. I use several widgets that requires updating just because of the novelty (ie, Friendstream, News, Twitter, Stocks, Weather)
Now, I go through about 60-70% charge per day which is fine by me. The only things that have changed is this:
1. The battery has gone though several recharge cycles
2. I only turn on my device when I really want to do something on it.
3. I no longer keep many of the widgets that requires updating and for those that I do keep, I make it update less often.
Eg, Updating your weather every hour is not necessary. Every 3 or 6 hours makes more sense.
Eg. Rather than having your Twitter or Friendstream widget on your homescreen, why not just have a shortcut that goes directly to the application and then set it to sync on launch? It's better than having your widget update when you're not even looking.
Also get an app like battery indicator to give you a numeric readout of your battery life left. My android battery indicator was in the red yesterday and complaining I had to recharge, but battery indicator said I had 12% left and I got 30mins more constant music playing out of it before I got to work and it was still on 5%.
when the battery is running low - you get a button to show battery usage stats.. can you get these through some of the widgets or a comparable app from the market?
almost every update is set to to once a day, or every six or eight hours...so i dont think that the updates drain the battery that much..
its just weird that the most battery usage comes from call standby, phone idle, or android system..
mine was the same, i found its due to sense & all the background updates. currently running helix2 homescreen & now I only go thru abt 50% battery each day & that includes 2 hrs of music each morning.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
alright i know this seems stupid but remove all your task killers, i got rid of mine this morning and my battery has been fine normally by now i would have plugged my phone in for a juice up, but not today i had bluetooth on by accident all morning and by the end of the morning it was still at 70% yes i know it sounds stupid but it actually helps
There many interesting suggestions posted here and like most i've been absolutely hammering the battery on my handset simply because its a new and highly entertaining/useful device.
Here's some of my findings...
The battery/app usage screen can be quickly accessed by pressing the menu button on the home screen, selecting settings and "about phone". It helped me nail down some of apps causing excessive drain.
Much like the iphone and any other high powered smart phone, high screen brightness, wireless LAN, bluetooth, 3G and the GPS receiver all take its toll on the battery. One of the biggest drainers is the GPS receiver so use it sparingly, I initially had it on permanently for some of the maps functions but the battery was lasting about half a day! Sadly i've noticed the radio is also a bit of drainer, which is a shame because it makes a nice alternative to MP3 playback.
Data updates and notifications again much like the iPhone have a surprising impact on battery life so set them to manual or long intervals.
In summary, learn as quickly as possible to get the most out of your smart phone by balancing out the hardware and software options.
As a sidenote, I was previously an iPhone fan but this handset has really changed my opinion of how a smartphone should really be. The combination of excellent hardware, an OS thats clearly designed from the ground up for mobile use and an ever growing (open) software base, will in the long term win over Apple's over analy retentive ethos! Top marks also to HTC for their sense UI and application suite, it works on top of Android almost as if it was always part of the OS itself and I just love the integration of social networking features....leaves the iPhone in the dust!
I have noticed that Turning off the Data Connection helps a lot.
Last night I turned data off, before I plugged my phone in for charging. In the morning the battery was showing MAX power. Where normally in the morning would be 97%, because charging stops once the battery is full.
I am still experimenting with all the Apps & Widgets that turn data access ON/OFF, but my conclusions so far, just get a simple widget from the market, and keep data connection off, until you need it.
There is an app that turns data connection off once the screen goes off, but if you download something or wait for something to load and the screen goes off, data will also be switched off which is not what you need.

Battery life too short? Watch this from Google developer!!!

Hi,
If you want to know how long your battery life will last when:
- Idle on 2G/EDGE
- Idle on 3G
- Idle on WiFi
- Browsing on EDGE/3G/WiFi
- etc.
What cost battery life the most?
You will learn that "waking up app for doing nothing" will cost you heavily on battery life.
Things like checking email while you have no new email, checking weather while you got the same result, or getting data online while you are not connected to the network.
And so on ...
Sit tight and watch this:
http://code.google.com/events/io/2009/sessions/CodingLifeBatteryLife.html
This special session from Google IO in the past CupCake era explained in detail, with measurements about almost every aspects of the phone that drain the battery.
Interesting enough that IDLE on 2G vs IDLE on 3G will cost you almost the same. And browsing in 3G is more efficient. So, in this respect, I think it is not necessary to set to 2G as most people said for auto-syncing.
At home, use WiFi, because it is more efficient for web browsing.
Choosing and planning your sync and widget will make big different on battery life!
Watch it your-self and share your thought.
i've just removed advanced task killer app, and seriously battery lif is like amazing normally by now i would be at around 50% i'm at 70% and have been using it more like 2 phone calls i normally don't make any and a tiny bit of browsing but that certainly improved it
slaming said:
i've just removed advanced task killer app, and seriously battery lif is like amazing normally by now i would be at around 50% i'm at 70% and have been using it more like 2 phone calls i normally don't make any and a tiny bit of browsing but that certainly improved it
Click to expand...
Click to collapse
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Here what I experienced:
First of all, my phone settings:
- WiFi OFF (on when needed)
- Mobile network OFF (on when needed)
- Always on OFF
- Background data ON
- Auto sync OFF
- GPS OFF
- Bluetooth OFF
- 10% brightness (yes, my eyes is happy with that, seriously!)
- Using HTC "black" wallpaper
One day, I played around with killing tasks, not brutally killing, but just some of them like RADIO, MARKET, etc. Selectively killing.
Then I watched my battery usage, it drain quite a bit like 3% after 1 or 2 hours. I meant, it was really different compared to the other day when I did not touch task killer.
Today, I unplugged at 8:00 AM ... 100%
Now, 15:00 ... still 98% (after 7 hours!).
During that time, I played around a bit with Market via WiFi and SMS, no phone call.
Seriously, I got different result when using and not using task killer.
Try it yourself
mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
yep plus i'd normally i don't have bluetooth and i forgot to turn it off today afer using my blutooth headphones, and still at 70% yeasterday it would have been dead by now and i didn't even use task killer to kill apps. maybe advanced task killer stops apps being killed by the android system.
mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
I find this one a strange (what seems to be) fallacy when coming to Android 2.x. When I got my Desire, the first thing I got was a task killer. Then, a widget to let me know hom much RAM I have left. When it got low, I used the TK to do it's job and free up some RAM.
But the permeating fallacy seems to be that a TK is needed. But it seems people are finding out, time and time again that it's not. And as people here are finding, it's detrimental. And after not using my TK for a while, I found out that though the RAM can get low, Android will do it's thing in the background and I never notice low RAM in my daily operation.
Some people on another forum put me onto some info sources that explained why TKs can make your battery life shorter. In short, they can kill tasks which have scripts that will respawn, thus causing higher CPU usage and draining battery a little bit quicker.
There were other reasons but I can't remember them right now. People should really let people know and educate them (including some popular websites like AndroidCentral.com that I like) that it's not necesary and actually a waste. (Though I use mine for doing things like file management, installing and uninstalling, but not task killing.)
I watched most of that video that was kindly posted. And if I get this correctly (please correct me if I haven't), when I'm in wifi range, I'd be better off leaving that on to do data transfer as there is a negligable passive battery consumption over 3G and 2G, but a saving when transfering data which grows as the data transfer grows.
But then wifi should be turned off when leaving the wifi area, as like 3G, it drains the battery to have it searching.
Since I'll be in a wifi zone for most of tomorrow, I'm curious if I can get through a full day with wifi left on...
what makes me wonder is if i go to the market, search for something then i go to browser for couple minutes and then go back to the home screen, will the market and browser use the 3g/h/g in the background?
sorry if the answer for this is in the video but do not have time to watch it right now.
It's been said many times that Task killers are not necessary on Android phones and that their use will almost always result in worse battery life and reduced performance.
I used to have two HTC Heros and proved pretty conclusively that the above was true by running a task killer on one but having the same apps. on both. I even reversed things in case the battery was better on one of the devices.
You will never convince some people though. It they want worse battery life and performance surely that is their choice.
I know I will never again put a task killer on an Android device.

Android System eating the battery

Hey all, I don't know if anyone has even noticed on their Evo's but on mine, the Android system usually eats most of the battery. I noticed there is a ton of processes under Android system that are running compared to like five on my Hero. I've never seen the core system processes take up more than maybe 15% of the battery, but right now, I'm at like 41% with 16m 6s of CPU total and 47s of CPU foreground. If anyone knows why this is or a way to fix it, please let me know. I'm on the first MR update. I've been able to get a lot of battery stuff figured out, if I can get the system to calm down, then I should be able to get even better battery life than my Hero.
I'm seeing the same thing, android system is at 96% battery use after letting the phone sit overnight. Never saw that on my nexus, this is strange.
Could be related to the fact that everything is syncing up, I just activated last night too.
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Sent via the XDA Tapatalk App
Yeah, the system seems to have calmed down a bit today, though I also have the OC widget running to keep the processor lower during sleep. I'm guessing its helping, but I'm not sure if there is something else to get it down. I almost never even saw the System show up in usage on my Hero, now its one of the top contributers. I got used to having custom roms on the Hero, but so far all I need on the Evo is unrevoked. I know a lot of people around here don't like it, but I found I only needed a couple of apps that require root and so far love it. That OC widget really comes in handy.
maybe i can clear things up a little bit for you guys...what you see in the battery use section is distributed across 100% of the time since you last had it plugged in. if you notice all the percentage numbers add up to 100%.
if you plug your phone in and turn it on and off on you will see that android system is probably around the 90's thats because android system has used 90+ percent of the phone since you plugged it in....over time that number will lower, becuase other things will start using the battery power... what you see is a percentage based on time. not based on whats actually working RIGHT THEN AND THERE do you guys understand?
I too am having that problem and at 15% battery life warning - it still shows my Android system @ 40-44% usage after 8hrs of work.
I mostly text message all day long due to work - make phone calls and recieve calls from work every hour. GPS on for no more than 15min all day long to get direction when my keymap book doesnt help.
4g off, bluetooth off, background data 15 min only (gps) than off, gps off when not in use, mobile network (3g) off when not in use.
I would have figured my screen being on would have drained my battery life since I check text message every 10-15mins for 8hrs...
So went to work at 9am, 100% life
got off work 6pm, 25% life
I've done all the tricks, cdma only, force stopped a bunch of apps, goggle talk off, sync off, making sure maps/gps has been closed (forced or not)
still disappointed with battery life.
Unrooted Evo
My crappy AT&T Razr lasts me 2-3days with text message + call + 1.5hr of playing Bejeweled a day
*facepalm* you guys don't get it....
grrgrrgrr said:
I too am having that problem and at 15% battery life warning - it still shows my Android system @ 40-44% usage after 8hrs of work.
I mostly text message all day long due to work - make phone calls and recieve calls from work every hour. GPS on for no more than 15min all day long to get direction when my keymap book doesnt help.
4g off, bluetooth off, background data 15 min only (gps) than off, gps off when not in use, mobile network (3g) off when not in use.
I would have figured my screen being on would have drained my battery life since I check text message every 10-15mins for 8hrs...
So went to work at 9am, 100% life
got off work 6pm, 25% life
I've done all the tricks, cdma only, force stopped a bunch of apps, goggle talk off, sync off, making sure maps/gps has been closed (forced or not)
still disappointed with battery life.
Unrooted Evo
My crappy AT&T Razr lasts me 2-3days with text message + call + 1.5hr of playing Bejeweled a day
Click to expand...
Click to collapse
check your hardware version there is a thread about different types of evos and it seems like everyone who has the hardware revision 0001 has really bad battery life. i would exchange your device.
Yes we know, Freelancerx, or at least I do. But after over 8 hours and the system is still using more of the battery than anything else is a little disturbing. Never seen that on any other device. I have Hardware 0002.
I have this same issue with hardware version 0002. I run Fresh 1.0.1, i use Netarchy-toastmod kernal, have latest radio. I have also tried Damage Control (did get slightly better battery life out of DC but not amazingly different)
after 7 hrs since unplugged my andriod system is at 39%, cell standby 28% phone idle 20% display 9%.
i dont have bluetooth, wifi or 4g on. I use juicedefender+ultimate to turn off apn when screen is not on. I use set CPU to underclock when i am unplugged and go down to 128 when screen off and i am Stilll lucky if i make it all day with moderate usage.
Every day it is the same andrioid system is around 40% of the usage for the time it was unpluged.
the following is listed under included packages (not sure if this shows the same for everyone or if it shows what packages are running)
BRCMBluetoothService - Bluetooth is not on so if it shows packages running this may be an issue
Sync Feeds - I have all android syncs off and mail at 6 hours
settings storage
Rosie Utility
Acounts & syync
Account and sync settings
settings
HTC Widget Download Manager
Network Location
Setup
HTC Checkin service
Checkin serivce
VPN services
Android system
Wonder if there is something to the android system on these (ie something not turning off that should) or if we are all just crazy and happen to get the same results.
I had a hardware 0002 model and often experienced the same thing with high system % usage.
My phone was replaced, due to a screen issue, and now I have the 0003 model and seems system % is much lower so far.
I haven't installed any system update yet, so I am on the first original release rom (not rooted yet).
Going to be testing it for a few days before I update and root, so I can make a fair comparison between the original and current oem's.
If your phone is on....Android system is being used.
satch12 said:
If your phone is on....Android system is being used.
Click to expand...
Click to collapse
I think everyone here understands this. the question i think we are trying to figure out is why with similar usage and configurations some people get 40-60% android systems usage while others get 10% over the same period of time.
Android system is way too high.
satch12 said:
If your phone is on....Android system is being used.
Click to expand...
Click to collapse
Yes but if it is configured in an optimal way then android system is always beneath cell standby and phone idle.
For example, today after 15h 28m 23s since unplugged I have...
Cell stanby 38%
Phone idle 37%
Android System.....12%
That is with background processing with auto syncing every hour or so.

[Q] Battery drain: mystery network usage?

I'm running CM6.1 RC2, and the past couple of days I have experienced excessive drain, mainly in the first 50%. I attached a picture of the issue. I went to spare parts battery history to see the network usage, since in the about phone battery usage cell standby was 84% of the battery usage, and under network usage there was just an entry for 0, using the most network. When I clicked on '0' the settings application crashed. Yesterday it dropped 35% in 2.5 hours, before it slowed down. It was ridiculous, never used to have this problem, and the battery is only a couple of weeks old so it has to be software. Today it is at 53% after 7.5 hours, which is pretty decent, but at around 70% I disabled 3g and background data to save some energy for a few hours. Is there any way of figuring out what is causing this, or should I reflash? Could it be a CM6.1 RC2 bug? Anyone else having this issue? Thanks in advance
BTW I have no idea why the dialer was so high in usage I only had like MAYBE 15 minutes total of voice calls in 2 hours. The 0 is what I'm concerned about.
Anyone? Bump? No one else is having the issue? Still happening to me on RC3.
I've been getting that problem too.
I used to have battery life of up to 4 days (Mostly standby), now I'm lucky if I get 1.5 (Same usage).
I went in to spare parts and it crashed for me too.
Battery drain here too since cm 6.1
Sent from my T-Mobile myTouch 3G Slide using XDA App
Well '0' is he system's ID, 0 is root. In the graph the blue is bytes sent, red is bytes received. Have you checked other usage like CPU usage? That might be a better indicator of what's using your battery. Then from there you can start to narrow it down to a specific process or app. I'm using the latest nightly and don't have that issue, never have. I use a bit more battery than I think I should but nothing crazy.
Do you have wifi or bluetooth on? Those drain your battery like no other.
I havent used wifi at all today, unplugged at around 6:30, it's 3:45 now and I'm at 63%, but from around 9:50 to 11:45 and then from 12:20 to 2:20 I had airplane mode enabled since the time without a signal was at 70%, very low signal area. So it seems like for only 4 hours or maybe 5~ of non airplane mode time I should be at above 63%. I only had wifi on for a half an hour today. I'm considering going back to stock for a few days just to see the battery life comparison, and then nandroiding back to CM6.1. I always end up going back to AOSP-based roms in the end. I don't have a data plan on my phone at the moment, getting it today I'm pretty sure, so could all of the blue be from the phone continuously trying to access a website? But other people said they have the same issue and I'm assuming that they have data plans, so that can't be too much related. Hmm.
I also checked cpu usage and such like you suggested, there were a lot of things listed but all but two of them were too small to even have a bar. The two that did have a bar visible were minuscule to put it lightly, so that can't be an issue. Battery use in the about phone area always has cell standby at the top, normally between 40 and 80%. It would seem like there is way too much cell communication going on, moreso than normal. Cell standby stays at the top in even high signal areas, so it's not the signal levels. Kind of stumped here.
Well if the cell is in standby then it's linked to a tower and awaiting activity. Every now and then it 'checks in'. If it's doing that too often then that could seriously drain the battery. You're right though, I'd just switch back. Trouble shooting the exact issue wouldn't be worth the time. Maybe try flashing it again later, could have just been a corrupt download that didn't flash properly.
After conditioning my battery religiously (full to empty with every charge cycle) I am back up to about 15 to 16 hours from full battery to system shut down which is way better than the 10-12 hours I was getting when I first loaded RC2. CR_OTA ROM gave me up to 24-30 hours off of one charge with the exact CPU/2g/3g/wi-fi "routine" as I am using with RC2. Tracked battery usage with System Panel app and RC2 has a steady and even drain pattern ... an even diagonal line down the graph (100% to 0%). Cell standby uses a ridiculous 40% of the battery from full charge! On the stock ROM System Panel app shows plateaus throughout the day when the phone screen is off/sleeping where battery use is virtually non-existent. I'm going to load RC3 today and track the cell standby and battery usage. This time I am not going to use setCPU and just let the ROM run as the CM team designed it to be used and see if anything has changed. I tried this with RC2 and the battery still trended absolutely evenly from 100% to 0%. I can live with a 16 hour battery cycle for the CM ROM because it is very smooth and never has a glitch. The stock ROM is smooth as well but it has some buggy behaviors that I just cannot stand for and it does not run the latest GAPPS.
I've noticed i have exacly the same problem(was actually gonna post it when i found this thread)
Needless to say that on eclair my battery lasted ~48 hours constantly, not its drained in max 24...
The highest I have EVER gotten was 24 hours, and that was on a cm6.1 nightly build, pre RC2. I loaded cr_mod and experienced a HUGE drain. I had airplane mode on, just to test, and it dropped 7% in an hour, in AIRPLANE mode, with no screen on time. I went into spare parts and looked at the usage, and sure enough, "running" was at the top, with 99% of the time spent without sleeping. This has never happened before though, so I can probably attribute that to my modifications. I deleted a few apk's and de-odexed it before I flashed it, and I have a feeling something I did corrupted something else, so I'll flash plain old cr_mod and see where that leaves me. I should probably get back into the habit of full charge/drain every cycle. I used to do that until my battery started lasting longer than I was awake for, so I always had to plug it in at around 15 to 30%. I'll run some more "trials" and see what's going on.
Also, on an unrelated note, I love the stock rom, I always love the sense UI, but I hate HTC_IME compared to the froyo Latin_IME, is there any way at all I could port the froyo Latin_IME to the eclair stock rom?
Edit: also, I flashed dumfuq's OC kernel over cr_mod, could that have been the culprit to the battery drain?
Shouldn't be the culprit. It would drain quicker because of the clock speed but shouldn't be too bad.
Yes Latin_IME should be able to be used with sense. Just delete htc_ime and clicker.apk then install latin_ime and it's corresponding clicker.apk which you can get from various roms'. Btw, clicker is used to calibrate the keyboard so you don't have to install it.
NJAZ, what's the result on using CM6.1 without SetCPU? Big difference or not?
KCRic said:
Shouldn't be the culprit. It would drain quicker because of the clock speed but shouldn't be too bad.
Yes Latin_IME should be able to be used with sense. Just delete htc_ime and clicker.apk then install latin_ime and it's corresponding clicker.apk which you can get from various roms'. Btw, clicker is used to calibrate the keyboard so you don't have to install it.
NJAZ, what's the result on using CM6.1 without SetCPU? Big difference or not?
Click to expand...
Click to collapse
Actually, by process of elimination, the kernel was the issue. I remember hearing about there being a bug in the older dumfuq kernels with something idle being null, I really don't remember but it had something to do with sleeping. I flashed pure CR_mod and then 3.5 dumfuq and I experienced the same issue where it wouldn't sleep. I flashed 4.0, but I think it's too soon to determine whether or not the same issue with sleep is occurring.
I tried doing what you said with LatinIME.apk, I even imported the lib file from /system/lib on CM6.1, but the it was nowhere to be found in the system when I booted. It wasn't under keyboard settings, and HTC_IME was gone. I figured it was an incompatibility between froyo and eclair, since the stock sense rom is eclair and the LatinIME.apk is from a froyo ROM. Do I have to something more than just adb push the apk and lib file? I also tried installing it with a file manager, and no surprise, problem parsing the package. It's a system apk so I didnt expect it to be able to install via a file manager. Do I have to use adb install instead of adb push? I'm wondering if htc IME is so wired into the system that it won't work that way. What if I rename LatinIME.apk to htcime.apk or whatever the name of HTCime is and see if that works, because the system may be is treating that as the stock android keyboard, rather than a third party one, because it is labeled touch input in settings, just like LatinIME in aosp roms.
I'll experiment some more I guess
edit: Nevermind, 4.0 is draining as well, albeit less rapidly. Ah well. I guess I'll have to go back to CM6.1 if I want to do overclock. Shame, I love sense so much.
ANOTHER edit: nevermind, you were right, it isn't the kernel at all. It happens when I turn wifi off. I'm assuming that's because I don't have a data plan so it's continually retrying a server that it can't access. I don't know why it didn't do this on the stock HTC kernel, but I'm pretty sure it's the issue. If I turn wifi AND mobile data connection off, it stays at normal drain as well. Well, I'm at 11% and my battery app is estimating roughly 1 hour and 20 minutes remaining, so I don't know if that's GOOD, but I'll give it a good full charge tonight and run it tomorrow. I hopefully will have data activated tomorrow so I can really test it.
Hey guys new to the slide forum but not new to the site. I come from the G1 thread and we had the similar problem. How is your battery life on a 2.1 ROM? I have my phone rooted with a Sense ROM and it has 2.2 and i do see a bad battery drain as well. I remember froyo ROMs battery life may not be the greatest yet. I remember that was always a big problem over there and it looks like it still hurts here. Have you tried setcpu settings?
Maybe this information will help, i forgot to mention last time i posted that i'm not using a HTC device, i'm using Samsung Galaxy S, and there are more ppl with this problem on our forum aswell, so maybe someone can use this information correctly, i mean, it's either a program that's doing this or some strange freaky froyo process that not everybody has? or idk..
We'll need to get a log or something from one of the phones doing this and see if we can pinpoint the issue. Anyone experiencing this issue using compcache? Maybe it's doing some sort of background compression/decompression or swap is swapping too much while the phone is 'off'. Like I said, we'll need a log dump uploaded so we can sift through it.
As far as the latin_ime, try getting the one from a 2.1 vanilla rom. Check the slide rom bible for the 'senseless' roms like CM5 or something. That should do it.
KCRic said:
We'll need to get a log or something from one of the phones doing this and see if we can pinpoint the issue. Anyone experiencing this issue using compcache? Maybe it's doing some sort of background compression/decompression or swap is swapping too much while the phone is 'off'. Like I said, we'll need a log dump uploaded so we can sift through it.
As far as the latin_ime, try getting the one from a 2.1 vanilla rom. Check the slide rom bible for the 'senseless' roms like CM5 or something. That should do it.
Click to expand...
Click to collapse
Well my desire was to get the froyo latinIME onto eclair, since it's prediction engine was so much improved, but I'm getting used to HTC_IME so it doesn't matter.
As for the battery, for me at least, running the cmkernel from dumfuq, v4.0, I get BETTER battery life than the stock HTC kernel. Weird right? If I enable data I get tons of blue in spare parts, under network usage, for things like calendar and contacts. I'll have to assume that's because of the lack of data plan, my data plan doesn't become effective until december 9th. Otherwise, I have no excessive drain. It must be a cm6 issue, with cell polling. Cell standby was always up in the 70%+ range in battery usage in cm6, and on the stock rom it's around 27%. Wi-fi and display are highest, and I still get 20-25 hours.
I agree, to pinpoint the cause of the problem in cm6, someone needs a log to analyze, I'm not actually that smart with these things, nor am I running cm anymore, so can't really help there, but it'd be a good start.
MusicMan374 said:
Well my desire was to get the froyo latinIME onto eclair, since it's prediction engine was so much improved, but I'm getting used to HTC_IME so it doesn't matter.
As for the battery, for me at least, running the cmkernel from dumfuq, v4.0, I get BETTER battery life than the stock HTC kernel. Weird right? If I enable data I get tons of blue in spare parts, under network usage, for things like calendar and contacts. I'll have to assume that's because of the lack of data plan, my data plan doesn't become effective until december 9th. Otherwise, I have no excessive drain. It must be a cm6 issue, with cell polling. Cell standby was always up in the 70%+ range in battery usage in cm6, and on the stock rom it's around 27%. Wi-fi and display are highest, and I still get 20-25 hours.
I agree, to pinpoint the cause of the problem in cm6, someone needs a log to analyze, I'm not actually that smart with these things, nor am I running cm anymore, so can't really help there, but it'd be a good start.
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Click to collapse
Well I just recently saw this almost exact same issue (maybe not as extreme) on the samsung tablet running Cyanogen. They removed the phone, telephony, mms, and one more .apk to resolve it. This issue was caused by the lack of a use for those .apks but the system was still using them... a lot. It seemed similar but not exact, maybe some of us more tech savvy people can look into those and see if there's an issue.
KCRic said:
Well I just recently saw this almost exact same issue (maybe not as extreme) on the samsung tablet running Cyanogen. They removed the phone, telephony, mms, and one more .apk to resolve it. This issue was caused by the lack of a use for those .apks but the system was still using them... a lot. It seemed similar but not exact, maybe some of us more tech savvy people can look into those and see if there's an issue.
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Click to collapse
Yeah that'd be cool. It must have something to do with that, since it's the cell radio sucking battery.
Sent from my T-Mobile myTouch 3G Slide using XDA App
I flashed 6.1.0 stable, battery drain seems to be slightly less. I'm still at around 5 or 10% below where I was at this time on stock, with 9.5 hours off the charger, current level 57%. Although, I did use airplane mode for almost 2 hours, so really I'm like 10 or 20% below where I should be. I just can't figure it out, cell standby is at like 80% usage in this ROM. It's ridiculous, is it the polling intervals or something? How can it be so much less battery efficient than stock?
I flashed 6.1 RC2 with a low battery and had trouble with battery life. TMO's service was acting very strange for a couple of weeks and my cell standby was consuming a lot of juice. Flashed 6.1 RC3 with a well conditioned full battery. At first I used no setCPU just to see how things would go ... 11 hours from full battery to empty. Added setCPU to RC3 and got 27+ hours out of a full charge. Either TMO fixed it's towers or RC3 was better with cell standby because my network usage was not cranking overtime like it had been. Finally, I flashed 6.1 stable with setCPU and I average around 22 to 24 hours on one charge.
One observsation - when I first flashed RC2 I was really into my phone again. I was constantly tweaking it and flipping through options, testing apps, digging new Gapps, etc. ... bottom line I was just using my device waaaaay more than usual and I think that played a huge role in my (supposed) poor battery performance. All seems to be well with 6.1 stable.

Ways to save battery on a rooted G2/Desire Z?

I have a rooted G2/Desire Z. What are some ways that I could save battery? It seems it takes only a few hours for it to reach 50%. Granted the phone is now >2 years old and the battery is probably aging. I've done all the basics such as screen brightness set to auto, dim after 30 seconds, etc. etc. etc. What more could I do?
Alternatively, are there any apps that can control the phone/cpu to work a certain way to save battery life?
Thanks
valeous said:
I have a rooted G2/Desire Z. What are some ways that I could save battery? It seems it takes only a few hours for it to reach 50%. Granted the phone is now >2 years old and the battery is probably aging. I've done all the basics such as screen brightness set to auto, dim after 30 seconds, etc. etc. etc. What more could I do?
Alternatively, are there any apps that can control the phone/cpu to work a certain way to save battery life?
Thanks
Click to expand...
Click to collapse
Setcpu,set screen off profile to lower clock..freeze some bloatware up..and also try v6 supercharger
Sent from my HTC Desire Z using xda app-developers app
Easiest way:
Uninstall fabebook app, flash a sense rom where you can access most fb functions without the app.
For real, my battery life went from about 10% an hour to 4% an hour on average.
Sent from my HTC Vision using xda app-developers app
Honestly, way number 1 is to get a new battery. Old batteries just start to drain much faster as they get older. Pick up an Evo Design 4G stock battery for a nice boost.
2. Turn brightness off auto and put it as low as you can handle. Keep a brightness slider on your notification bar for those situations you need to turn it up quickly.
3.Turn everything that "syncs" off of push and set it for 1hour+ intervals if possible.
I have had great standby time using the OC daemon that is packaged with the mimicry ROM as well.
There is this trick that helps. On a monthly bases drain the battery and re-charge with the phone on ie also a good Rom an a good radio version like .19 will keep your battery good don't use lots of ram manager apps and bettery saver apps the run backgroung processes that drain your battery fast
HIT THANKS IF I HELPED
Sent from my HTC Desire Z using xda premium
With 2 year-old battery there are only 2 options:
1. Replace the battery
2. Buy a new phone
mruwek said:
With 2 year-old battery there are only 2 options:
1. Replace the battery
2. Buy a new phone
Click to expand...
Click to collapse
^This (regards to #1), and working batteries are rather cheap, the fat one I got (3500mAh) was 9$, but you can easily get a stock replacement of the 1300-1500 range to fit with the default battery cover.
Far as tips, rooted or not:
1) Screen to automatic, or avoid 'full brightness'. Your screen consumes the most of your battery, automatic or lower brightness can improve the life significantly. This is the big one as your screen will typically be 80-90% of your battery life.
2) If you are near wifi often, System Setting -> Wifi -> Advanced (via menu) -> Sleep profile to always on. This will set it so that the wifi connectivity is always on even with the screen off. A connected good wifi connection uses far less battery than your 2G/3G data constantly searching for a good or better data connectivity. Simply turn off wifi completely when not in an area with wifi (or if you're driving around).
3) Avoid unnecessary applications. Don't use twitter? Freeze/Disable the application under manage app or under Titanium Backup (generally it's not good to 'uninstall' an application completely if it came with the rom).
4) SetCPU with profiles is one way to do it, unless your rom comes with a CPU Daemon already (ie: mimicry with virtuous OC Daemon), When setting a "screen off" profile, try not to go below 768mhz for the maximum, as going with 384mhz for example may be too slow for the phone to effectively wake up when a call or notification comes in.
5) You can use an app such as Tasker (not to be confused with task killer). Where you can assign automatic tasks, such as automatically setting Radio to 2G when connected to wifi (some roms like AOKP do this automatically under power control), or other tasks depending on the circumstances.
6) The first time you get a new battery, make sure you leave it on the charger for a good 5-6 hours so that it accurately 'tops off', the phone won't know accurately what's 100% and what's 0% until it has been fully charged (least 6 hours minimum), and fully drained, after which it'll more accurately report your battery % as it's used and will have more accurate usage stats.
7) If you're a T-Mobile subscriber, consider the 26.13.04.19 radio as well as the T-Mobile Wifi calling app, wifi uses less power in the long run than your radio via cell towers. If you'll be in a location that has wifi often you will benefit from this over not using Wifi Calling. (The main downside is you cannot currently send/receive MMS over wifi calling, but Calls and SMS[txt] work fine). Even if you don't use the wifi calling app, the 26.13.04.19 radio provides better battery life over the older one.
---------- Post added at 10:53 AM ---------- Previous post was at 10:48 AM ----------
strip419 said:
There is this trick that helps. On a monthly bases drain the battery and re-charge with the phone on ie also a good Rom an a good radio version like .19 will keep your battery good don't use lots of ram manager apps and bettery saver apps the run backgroung processes that drain your battery fast
HIT THANKS IF I HELPED
Sent from my HTC Desire Z using xda premium
Click to expand...
Click to collapse
Course it helps to clear battery stats before performing this task so that the OS/Battery-Stats records the new maximum and minimum values of the battery. Though you don't need to do it monthly, I would say closer to 6 months would be appropiate if you don't want to make a monthly habit of it.
You mainly only do this on account of battery aging (over time the battery will not hold as much charge as it once did), You normally know if you need to do this task again if it appears to be on 98% or 99% forever never reaching 100%, meaning that the battery is no longer able to hold the juice to provide the former-maximum mV value, re-doing the battery stats simply makes the new maximum marked as 100%.
PS: Strip419, on an off-topic note, I tend not to 'thank' people who ask/beg for it. If your post is worthy of thanks, they'll be clicked on their own accord.
OK MAN I'LL KEEP THAT IN MIND
Sent from my HTC Desire Z using xda premium
Best rom I've ever used for battery life is EliteMod. That rom did something crazy, cause my phone lasted for days before it need charging, and I use facebook and all that good stuff. It's not as fast as other roms, but battery life is certainly the best on that rom.
Also yea, before with stock battery my phone would last a day at best, and now I have a 1800 battery that makes it last for 2 days easy. So if your phone is at least 2 years old, get a new battery. They're dirt cheap on Ebay or Amazon. The phone comes with a 1300 stock.
simply change for normal use 2G instead of 3G.
A couple of questions--I'm using EliteMod CM7
kbeezie said:
2) If you are near wifi often, System Setting -> Wifi -> Advanced (via menu) -> Sleep profile to always on. This will set it so that the wifi connectivity is always on even with the screen off. A connected good wifi connection uses far less battery than your 2G/3G data constantly searching for a good or better data connectivity. Simply turn off wifi completely when not in an area with wifi (or if you're driving around).
Click to expand...
Click to collapse
My Advanced settings don't look quite like yours, alas. (I'm using EliteMod cm7.) The section is entitled "Wi-Fi sleep policy, Specify when to switch from Wi-Fi to mobile data" and the only options are " When screen turns off," "Never when plugged in," and just plain "Never." I assume that the "Never" option, that is, never switch from Wi-Fi to mobile data, is what you mean...that is in any event the default (set by this particular ROM?)
But my problem goes beyond not quite understanding the semantics of "Never" (off?) vs. "Always on." What I continue to find odd is that my highest battery usages, at least according to Battery Monitor Widget, are never the screen at all; rather they are cell standby, Wi-Fi, phone idle and Android System...Display is down at 6% just now, for example (and I've been up for hours, have read the news on the phone, emailed, texted, etc. This is on EliteMod only, btw, I used Flinny's latest build (.94?) for a few days recently, and while battery usage was worse, at least the display was at the top of the list, where it (presumably?) belonged.
I have all the latest and greatest tweaks from the the forums (for cm7 roms, that is) the .19 radio and sd-ext and all ext4 partitions. Am running the generic 3500mah "fat boy" battery...drained and refilled several times, all according to instructions...mine only shows maybe, umm, 2300 or so mah, but that's not the issue for just now...it's why my usage looks so odd, and how to fix it, if need be.
thanks to all,
p-d
oh yeah. I have long used (pre-rooting) Lookout and Pouzerate's Green Power free apps...have now turned them off (well, uninstalled them, in fact) just to see if, indeed, battery helper apps make things worse, running in the background... any thoughts on that topic would be welcome as well.
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