Develop Bugs

Cm6 stable battery tips

Can anyone give me tips on howvto save battery ...I have set cpu profiles but it seems to still drain...and auto sync is off too
Sent from my HTC Vision using XDA App

There are so many ways but it all depends on how your phone is used.
Got to Settings>About Phone>Battery Use and see what all your battery life is being spent on. From there, figure out a way to cut back on that (if it's your screen, decrease the brightness or turn the screen off when not in use).

Here are a few tips from my own limited testing on a few ROMs like Villision and Enom's as well as CM6.1. First off, I use a helper application like XDA Superpower which basically turns off stuff when the phone is in power save mode like wifi, data, etc. It allows some flexibility of when you allow a data connection to be made. You can also set scheduling for night-time use if you want. The main for me was understanding how I use the phone. My phone use peaks around morning, lunch, early evening. Then I want the wifi or data to support me. I want to download new packages, play around, etc. Other times, the phone is just with me when I travel somewhere. I don't care for it to continuously poll for email. Also check out if you have apps like facebook and seesmic for twitter how often you allow background updates. I turn these way down and allow facebook to update every 4 hours and seesmic every 6 hours.
At the end of my day, I commonly have about 70% battery left after my three major use periods in day. This may include a few phone calls, some text, some intensive newsreading, downloading this or that. I don't listen to streaming music, watch any videos, etc.
I would say you should look at how you use the phone and when you don't. I use juicedefender on enom's and villision ROMs and XDA Superpower on CM.
I don't think there is a magic recipe but once you understand what you use the phone for, you can tailor how data and wifi works, how you get updates, how many widgets you run, etc.
Just some ideas... I'm still searching for a battery that goes forever

Thanks man this was really helpful and the xda app looks interesting ill give it a try
Sent from my HTC Vision using XDA App

I use "2g networks only" unless I need wifi or 3g. Honestly, that has doubled my battery life to 24+ hrs easy on med-hvy use daily. The "Netswidget" lets me quickly toggle the network status. BTW...stock, pershoot kernel, oc'd @1017 and @245 when screen is off. Try it out...
Sent from my T-Mobile G2 using Tapatalk

i'm having battery problems too. i'm not a heavy user, but with the original sense rom on my desire z i had two days. the most power (arround 80%) was used by the display. now, on cm rom, i have 38% of mobile standby, 37 of inaktive mobile and 10% are used by android OS. the display is on 4%. all settings are the same on cm rom and sense rom...

i did several battery drains and i deleted the battery stats, ima drain the battery two more times and repeat. right now my phone is at 74% its currently 2:00pm and my phone was at 100% at 3:24am when i took off the charger.

[Q] Juice Defender messing with Data connection

So i installed Juice Defender and immediately noticed a sizable boost in Battery life... BUT... my Data connection was more flaky then it was at stock
So one day when it is critcal mass I uninstall it real quick so I can have the data connection I needed so badly at that moment. Well... after that the battery performance has been MUCH worse than it ever was before.
Anybody deal with this yet? Anybody know how to set the program not to mess with the data... or how to....????
My rooted GNEX config is in the sig.

I found that is messed up my data connection too but that's the most part if how it works to save your battery by switching to 2g when screen off and 3g while screen on. At least that's how its meant to be. I uninstalled it as 3g would rarely come back on.
Look into other settings to save your battery like screen brightness, auto snyc, GPS, wifi (if your not in a place with it), lock sounds, key press sounds, vibrate on touch, vibrate on key press in keyboard. There's loads of things lime that which really help.
Maybe also look into certain apps being high memory usage in settings menu and look into how many apps you got installed.
Sent from my Galaxy Nexus using Tapatalk

This may not be of much help, but I used it for a long time with my tbolt and never had an issue, but no matter what I did with the bionic it would almost never regain data with screen on. So I think it *might* have something to do with the actual hardware. Don't quote me, just my two cents. However, after uninstalling on the bionic I didn't have anymore issues with data than I had before installing.

Oh, and I forgot to mention that juice defender saves battery by killing the data connection. It doesn't save battery any other way.

Same deal here. I just set the app to not mess with Mobile Data by clicking the customize button under profile and going into the new Settings tab that shows up then disabling the Mobile Data option. Still testing...

2x battery
I had trouble with juice defender also so I changed to using 2x battery and I have had much better results.

Toggle the 4G by swiping down and unselecting 4G, wait 10 seconds, then toggle 4G back on. It will come back, everytime for me.

ever since Gingerbread came out, JuiceDefender is not recommended for android OS

Pretty much the only major thing Juice Defender can do to "help" battery drain is turn off your network (or toggle it to 2G only on GSM phones, 3G only on LTE phones) when the screen is off.
It generally wastes more battery frequently toggling it on/off when the screen changes state than it saves by doing so. Not to mention that you can't get background alerts etc. when Juice Defender is toggling your data around.
The only time it ever really saves you anything is if you're not turning your screen on for long periods of time, in that case you could simply manually toggle off your data if you know that will be the case. Juice Defender runs as a process in the bakcground constantly, which effects your battery negatively also.

martonikaj said:
Pretty much the only major thing Juice Defender can do to "help" battery drain is turn off your network (or toggle it to 2G only on GSM phones, 3G only on LTE phones) when the screen is off.
It generally wastes more battery frequently toggling it on/off when the screen changes state than it saves by doing so. Not to mention that you can't get background alerts etc. when Juice Defender is toggling your data around.
The only time it ever really saves you anything is if you're not turning your screen on for long periods of time, in that case you could simply manually toggle off your data if you know that will be the case. Juice Defender runs as a process in the background constantly, which effects your battery negatively also.
Click to expand...
Click to collapse
pretty much what he said. I used JD Ultimate for a month before I gave up on it. I don't notice any decrease in battery life since I did so. Betterbatterystats showed an awfully high number of wakelocks when JD was active. The wifi "Location" feature was nice though.

Like previous posters have said, the problem with JD is that when it toggles you data, it will force your phone into an awake state which drains a bit of battery. I'd like to add that, from personal experience, if you usually have JD toggle your data on more frequently than at 20-30 minute intervals, you might as well turn off JD. The battery saved from turning your data off and the battery wasted putting your phone on an awake state isn't worth it. On the other hand, if you toggle your data less frequently than every 30 minutes, the benefit exceeds the cost and JD actually helps you save battery.
Since I need my data more often than that I have turned off the data connection management. I still leave JD on for the location-based Wi-Fi management though. That's actually useful and saves me having to worry about turning on my Wi-Fi when I get home/to college.
Sent from my Transformer Prime TF201 using Tapatalk

I'm never a fan of any so-called battery saving app.
All they do is turn off your data or turn down the brightness.

MilkPudding said:
I'm never a fan of any so-called battery saving app.
All they do is turn off your data or turn down the brightness.
Click to expand...
Click to collapse
+1
I'm a fan of Back button long-press kills app. Then i just check for bg processes of said app and kill them as well.
If i have apps that need background sync, i always make sure either to leave wifi or data on (i know it won't need much, a few KBs maybe) so that apps will have connectivity when they need it, or, if available, sign out of the app (examples: gtalk, latitude). It will cost me more battery if the app keeps trying to find network connectivity and not having it, than the drain of wifi on or data call active.

martonikaj said:
Pretty much the only major thing Juice Defender can do to "help" battery drain is turn off your network (or toggle it to 2G only on GSM phones, 3G only on LTE phones) when the screen is off.
It generally wastes more battery frequently toggling it on/off when the screen changes state than it saves by doing so. Not to mention that you can't get background alerts etc. when Juice Defender is toggling your data around.
The only time it ever really saves you anything is if you're not turning your screen on for long periods of time, in that case you could simply manually toggle off your data if you know that will be the case. Juice Defender runs as a process in the bakcground constantly, which effects your battery negatively also.
Click to expand...
Click to collapse
That explains why I have missed Kik and FB alerts all week! Cheers
#uninstalled
Sent from my Galaxy Nexus using xda premium

Chrono_Tata said:
Like previous posters have said, the problem with JD is that when it toggles you data, it will force your phone into an awake state which drains a bit of battery. I'd like to add that, from personal experience, if you usually have JD toggle your data on more frequently than at 20-30 minute intervals, you might as well turn off JD. The battery saved from turning your data off and the battery wasted putting your phone on an awake state isn't worth it. On the other hand, if you toggle your data less frequently than every 30 minutes, the benefit exceeds the cost and JD actually helps you save battery.
Since I need my data more often than that I have turned off the data connection management. I still leave JD on for the location-based Wi-Fi management though. That's actually useful and saves me having to worry about turning on my Wi-Fi when I get home/to college.
Sent from my Transformer Prime TF201 using Tapatalk
Click to expand...
Click to collapse
I disagree. When I used it on my tbolt went from a drain of 40-60 mAh to 20-25 mAh using battery monitor widget polling at 60 sec intervals. And I never missed anything. But I used jd ultimate that allowed data when apps requested it. I also typically got 6 extra hours of use, which meant I could make it though an entire work shift vs. having to recharge after lunch. The only reason I'm not currently using it is because of issue with the bionic data not restarting. That's the reason I think it's an issue with hardware compatibility. Because even if I let the stock Android manage the data connection I still have issues with data restarting on the bionic.

Juice defender did really extend my battery but I found the only part I really used was the WiFi location feature. I started using WiFi unlock at home and got [email protected] to turn off WiFi when I'm away from home then turn it back on when I get home. Yes, I'm that lazy/forgetful.

JuiceDefender was great on Gingerbread and Froyo, but I've noticed that it just seemed to hurt more than help on Honeycomb and ICS. My battery life on my GNex, in my use case, went up when I uninstalled it, as did the data drops I'd been having.
I suspect that as stock power consumption continues to drop with new OSes, JuiceDefender is going to be viewed as a relic of a bygone era.

I will have to say that it has helped my battery but in my work environment I lose signal while my phone is in my pocket plus I can't check my phone for two hrs or more. So I would say in my case it has helped since I would forget to turn data off. I also changed my settings to toggle data every 30 min instead of the default of 15.
Sent from my Galaxy Nexus using xda premium

1454 said:
I disagree. When I used it on my tbolt went from a drain of 40-60 mAh to 20-25 mAh using battery monitor widget polling at 60 sec intervals. And I never missed anything. But I used jd ultimate that allowed data when apps requested it. I also typically got 6 extra hours of use, which meant I could make it though an entire work shift vs. having to recharge after lunch. The only reason I'm not currently using it is because of issue with the bionic data not restarting. That's the reason I think it's an issue with hardware compatibility. Because even if I let the stock Android manage the data connection I still have issues with data restarting on the bionic.
Click to expand...
Click to collapse
I was talking about JD's performance on ICS; on the Galaxy Nexus specifically. JD was great on my old Gingerbread and Froyo phones but with ICS it seems to be obsolete (under the conditions I described in my previous post at least). I don't know if it's just how ICS works or if it's because JD hasn't been optimised properly for ICS but that's how it is right now.
Sent from my Galaxy Nexus using Tapatalk

I bought JD Ultimate, and eventually had to uninstall it after I found it was causing too many glitches in ICS. I wasted 4.99, but live and learn I guess.

Battery life stats and questions

What's a good figure for battery life on the GS3? The best I've got is about 31 hours using on demand and bfq. Any one got better life using other settings? I heard someone getting about 43 hours life but that seemed to be a little unbelievable. Let me know what your getting
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

What you reported is definitely "the average". Most actually only get a day, if they're lucky of moderate use and have to plug in before sleep every evening and get going on charge in morning. So its more like 15 hours actually. And your 31 max is very common high end for people who've stretched it out.
I'm not sure if you're stock rom or not and if rooted either but that makes a big difference.
I'm rooted ( and would ALWAYS RECOMMEND ROOT FOR EVERYONE EVEN UF NOT FLASHING ANY ROMS AND STAYING ON STOCK. The ability to have full control is important.
Changing kernels and more importantly, undervolting, will give you that longer life you're looking for.
I'm currently on KyanROM with either Ktoonez or Faux kernel (heavily tweaking and testing both) and have this phone beautifully undervolted to exceptionally low and very stable mv numbers! Thus getting me that lovely 36-45hour average (you mentioned you saw posted elsewhere - yes it is possible and many are doing it). I basically only need to plug in every OTHER EVENING or night between 6pm and midnight depending on usage and I'm a moderate to heavy user (with a lovely 3-5 hours of screen time as well) AND I also have my phone overclocked to 1.8Ghz! Surprisingly, the oc doesn't make much battery life impact at all because the phone isn't constantly having to run at high levels, only in short spurts. Actually, due to rooting and kernel change I'm able to have my phone run as low as 192Mhz during much of its general activity and deep sleep ( which I get a ton of as my phone basically always goes into it when the screen goes off). This saves me A LOT of battery life.
I also use LTE, which is actually one of the biggest if not the largest battery hog, next to screen time of course. But with that being said I only use it when needed and have it turned off when not in use.
As for my peak I was able to squeeeeeze out 87 hours once, on my stock battery BUT that was with some abnormal(for me) measures that really help conservation. Ie, no LTE, under clocked to 1.2Ghz for good part of the three days, much less then normal screen time over the period of which I used it at lowest level with even further reduction via screen filter, I actually used airplane mode during my three overnight sleeps (which I seldom use but if you can hack it, do it! It can really save battery overnight. My current setup basically SIPS MY BATTERY AT 1% EVERY 3.5-4 HOURS OVERNIGHT WHEN IN AIRPLANE MODE), mobile data was off for most of time but did use my wifi at normal level (wifi uses less especially if good signal with few reconnects/scans), used my typical low UV numbers, kept my notification updates/syncs/wakelocks to a minimum and lastly kept my memory virtually clear if unnecessary background apps.
Doing ALL of this allowed me to get OVER THREE DAYS BATTERY LIFE. But keep in mind I seldom do many of these battery saving tips on a regular basis but some do and if you can, they WILL work to extend your life substantially!
To wrap up (this long winded post/reply) I'll give you my general UV mv range numbers and the typical everyday simple battery saving methods I use.
1.My voltage at lowest clock of 192mhz=800mv with gradual (smooth and almost linear curve) increase up to a mere 1200mv at a whopping 1.890Ghz clock.
I use NOOP scheduler with ONDEMAND governor most of the time, sometimes SmartassV2.
My screen off and deep sleep use this lowest 192 clock speed and with no wakeup lag.
2. I use my screen at 0% brightness most of the time (except when outside or in high lighting environment). I use the brighrness widget app to control this as it is easier and works better then stock settings. I actually even further reduce my brightness with Scree Filter App. That app is awesome and often use it solely for brightness control because it has full control and can dim it to basically full black if wanted. Which is MUXH lower then stock control. Fyi I use my phone a LOT more at night or in dark environment thus allowing me to dim screen HEAVILY yet it still is actually plenty bright with ample contrast in dark environments to do everything. This saves on my battery HUGE!
3. I use LTE when needed and GSM/HSPA+ when not. Seldom turn of mobile data altogether. I do turn off wifi when out and only using mobile data.
4. I use Screebl app to have screen turn off when not in use. Its great liitle app. Basically let's you turn down screen timeout to 15 seconds or less so screen is never unnecessarily on but it always stays on when in use due to the accelerometer and it knows when the screen is not flat on table! Its very annoying when browsing or doing stuff where screen isn't touched for long periods and the screen goes to sleep! But this stops that! So its always on when upright or in use and when phone down it turns off immediately.
5. Very important step and can take some time and research but making sure to keep partial wakelocks and apps keeping device awake to a bare minimum! DEEP SLEEP IS VERY IMPORTANT TO SAVE BATTERY! You basically want it to go into that every time your screen goes off and to stay in it uninterrupted for as long as possible. And many users phones are NOT making it into deep sleep due to partial wakelocks and they don't even know it or how to fix it. Not getting deep sleep can unnecessarily kill your battery!
I use a few tools here: Better Battery Stats/GSAM Battery Monitor/Battery Monitor Widget from within System Tuner Pro (which is my also my main and highly recommended tuner app for CPU oc/uc and UV,etc.).
These apps really help to determine what, if any, apps are causing partial wakelocks ( displaying in wake number amounts and overall wake time) allowing you to determine what to do to fix the problem and let the phone gets as much battery saving deep sleep as possible.
6.I'm not big on auto app killers and actually recommend against them as Android ICS does this already very effectively but do keep in mind that the more active background memory that is used, the more battery the battery is drained. So I personally kill unnecessary apps myself from the background whenever possible to save a little battery here and there. Using the apps listed above in #5 can really help to detect a nasty background app or service that is quite possibly unknowingly using a ton of CPU and/or memory, thus draining more battery and also often just slowing down your phone!
7. For those who can use it Airplane Mode is a big saver! Try overnights if wanted as long as missing notifications, emails, calls, updates, etc is alright for you. I seldom use it but it does help.
8. I almost never use my Bluetooth and GPS but when I do that is the ONLY time they are on. They get turned off immediately and really be careful with the GPS in particular because you might be surprised how many things on your phone will use it in the background, sucking your battery!
9. Be careful with sound and vibration levels. Haptic feedback too. I don't do much here but its anotherctip nonetheless.
10. Lastly is treating and charging your battery right! I found an amazing site linked down below in a couple of articles that really explains these batteries and how they work in a very in depth technical level this is still not too hard to follow. Aside from the two links I posted check out the others on the left menu as there is a ton of useful and educational info!
http://batteryuniversity.com/learn/article/how_to_increase_the_runtime_of_your_wireless_device
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
OK I've rambled on waaay too long here. Maybe I'll take this and post a battery savings tips thread with it lol. "10 points"!
Btw I've just received both my 3300mAh and 4400mAh capacity batteries. So I have much testing to do on those too and I plan on reporting back on them as well. Also with screenshots for data and proof...I can and will also post screenshots for all of the numbers and stats I've posted here today with my personal phone/battery accomplishments.
Hope this helps some of you out there because yes this phone can be known for terrible battery life but it CAN be tweaked to SUBSTANTIALLY IMPROVE that life to high standards and keep up with the best of them!
Sent from my SGH-I747M using xda premium
On Stock battery - Kyan Rom/Ktoonez kernel (at this moment)

Seems about right. My phone is completely stock and if I really wanted to I could even use it for 2 work days. I usually charge it over night though. I used it for 2 days though while at work, and with 3 hours of screen on time I was down to 7% battery. Around 40 hours on.

I was stocked rooted using Sammy kernel. On demand BFQ. I'll try on demand noop and see if that helps. My screen was about 35% brightness.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Can I hijack a little here? My battery seems to be atrocious. It was okay stock after my first 3 full charges I was getting about 12 hours and 2.5 screen time.
Here is what I've done with my phone since:
Flashed to debloated stock Rom
disabled remaining unneeded apps (example ATT wifi app)
disabled Wifi
disabled bluetooth
disabled GPS
disabled GPS autorun states
disabled 4g
disabled autobrightness, set to 15%
disabled location reporting
disabled Push email with Exchange
disabled Motion
disabled auto google backup
disabled keytones and vibrate on all button presses
disabled touch key lights
disabled Svoice
disabled streaming on googleplay, only plays from memory card
disabled Google Now
fixed the cell standby bug (even though it may not impact battery figured wth)
Uninstalled FB
Set all Autosync accounts and email to sync only once per day
No widgets (only Google play music, Smemo note, flashlight, and folders)
Running save power mode for low power screen, no haptic, and auto adjust screen to blacks
Running mostly black wallpaper, No live wallpaper.
Running medium intensity vibration
I ran battery stats and got a lot of wakelocks from googlemaps and exchange so I disabled the push email and set it to once a day. Google maps I disabled latitude, and shut down the autostarts with gemini.
It's getting to the point where the phone is basically a dumbphone just so the battery can make it while it sits next to me at work. Today I have 48% after 8 hours and 50 minute screen time and 20 minutes of google play (only playing from on SD card not streaming).
Any ideas? It seems like I'm getting less than average.

All I did was also flash debloated rooted stock. Set to top out at 1.5ghz power save on. On demand BFQ schedule. Screen brightness as low as I can to still read. And got 32ish hours. I'm going to try OnDemand and noop like the other guy said and UV a lot more and see how close to 40 hours I can get
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

chrisj22 said:
All I did was also flash debloated rooted stock. Set to top out at 1.5ghz power save on. On demand BFQ schedule. Screen brightness as low as I can to still read. And got 32ish hours. I'm going to try OnDemand and noop like the other guy said and UV a lot more and see how close to 40 hours I can get
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Can u link me on the bfq? Having troublefinding what that is.
Also, is that the built in power save that limits the processor or some other software?

I believe if you flash Sammy kernel it has bfq. I am on task's CM10 and kernel and battery life seems poor compared to CM9 or stock rooted
Sent from my SGH-I747 using xda app-developers app

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.

Moving to Q&A

[Q] What exactly does battery saver mode do?

All I can find are vague descriptions. Nothing saying what exactly it's doing. From my experience thus far it's doing nothing. I am not getting better battery.

frigidazzi said:
All I can find are vague descriptions. Nothing saying what exactly it's doing. From my experience thus far it's doing nothing. I am not getting better battery.
Click to expand...
Click to collapse
From what I know it lowers the CPU clock speed and decreases brightness. All with the intent of saving battery.

I read that while it DOESN'T limit the CPU, it does lower the brightness and cuts out your data/BT/location/NFC in order to preserve the little bit of battery.
Edit: And syncs.

Sfkn2 said:
I read that while it DOESN'T limit the CPU, it does lower the brightness and cuts out your data/BT/location/NFC in order to preserve the little bit of battery.
Edit: And syncs.
Click to expand...
Click to collapse
I don't think it actually does any of that though. I have been using it a lot the past few days half on half off. I still get all MMS and emails right away plus my photos are syncing with google. My brightness doesn't change (auto or not). plus I have BT and WIFI on all the time for smart watch and of course data usage . Maybe the processor, but im not even sure of that. Guess I could do benchmarks with it on and off and see. I just feel like this feature is doing nothing at this time. On my nexus 5 I could really see the processor throttle and brightness him with battery saver.

frigidazzi said:
I don't think it actually does any of that though. I have been using it a lot the past few days half on half off. I still get all MMS and emails right away plus my photos are syncing with google. My brightness doesn't change (auto or not). plus I have BT and WIFI on all the time for smart watch and of course data usage . Maybe the processor, but im not even sure of that. Guess I could do benchmarks with it on and off and see. I just feel like this feature is doing nothing at this time. On my nexus 5 I could really see the processor throttle and brightness him with battery saver.
Click to expand...
Click to collapse
Mine only does that under 15% battery. Seems like its doing nothing over that.
Sent from my LG-H815 using Tapatalk

The default is under 15% and when it kicks in, i definitely notice a difference in the phone.
You can change it to immediately from 15% and i bet you will notice a difference at any battery percentage.

Cpu speed is not affected, just checked this.
Brightness was indeed cut off considerably, haven't checked for other things yet :good:

I figured out why it wasn't working for me. Simply clicking the icon to green in the pull down only enables it when it gets before 15 percent. Didn't force it on now like I thought it was.

Why is there so little discussion on this feature? I found very few threads on this and this was the most active conversation even though it is so old. I found out today I could enable this feature at anytime, not just at 5 or 15%. So I have it enabled at 100% battery and testing today. Upon enabling battery saver mode and restrict idle apps, the screen immediately went dim. I turned it back up slightly. I also noticed apps acting different. Toggling between apps is quicker and the animations are gone. Also, I'm using chrome and it's acting different. It's hard to explain, but if I'm navigating from one website to another, it is feels like it is refreshing every time, it doesnt feel faster. Im not sure what it is doing but someone with more experience will probably be able to pinpoint exactly what is happening. It's not standard chrome behavior.

mattnin said:
Why is there so little discussion on this feature? I found very few threads on this and this was the most active conversation even though it is so old. I found out today I could enable this feature at anytime, not just at 5 or 15%. So I have it enabled at 100% battery and testing today. Upon enabling battery saver mode and restrict idle apps, the screen immediately went dim. I turned it back up slightly. I also noticed apps acting different. Toggling between apps is quicker and the animations are gone. Also, I'm using chrome and it's acting different. It's hard to explain, but if I'm navigating from one website to another, it is feels like it is refreshing every time, it doesnt feel faster. Im not sure what it is doing but someone with more experience will probably be able to pinpoint exactly what is happening. It's not standard chrome behavior.
Click to expand...
Click to collapse
Not sure with the Chrome part of it. I use a different browser. With FireFox everything feels about the same as before.
I also noticed the animations are removed so there is no fancy domino effect or sliding going on. It's all instant and to be honest it feels heck of a lot quicker this way.
Screen is much more dim and is extremely conservative for the most part.
Clock speed is the same. Although I wonder if there is some sort of under the hood change such as MPDecision switching over to battery saving mode. It personally makes no sense to leave it as is considering in the past it use to cap the clock speed.

So using battery saver today along with restrict apps in background, the former definitely shuts down background data. I noticed Google play store not authenticating paid for apps. I had to go to the play store to launch the app and re-authenticate. That is where I received the warning that background data is off. I have a weather widget and that does not appear to be updating as that uses background data. I have a barometer widget and that does appear to be working as that uses sensor data. All that is required to re-enable background data is to uncheck restrict background apps under the battery saver mode. As of right now, I am at 71% battery and 2 hours 14 minutes screen on time, 3 hrs 53 minutes on the battery. I'm mostly using chrome while screen is on and podkicker and listened to about an hour of audio and a little bit of teamspeak usage with my Bluetooth headset. Brightness is at 37% which is pretty dim in this mode. I'd say it's equal to 15% in regular mode bit good enough to see.

Update, I went all the way to 25% battery remaining yesterday and I had right at 5 hour SOT. In my opinion, this mode is not worth the hassle. Background data is off and that breaks a few things. Screen is pretty dim and I ended up turning it up anyway. I have had similar battery life in the past anyway. I have had 7 hours 20 minutes of SOT before without this mode on and all my widgets working. I'm going to leave this mode off.

It saves battery

mattnin said:
Update, I went all the way to 25% battery remaining yesterday and I had right at 5 hour SOT. In my opinion, this mode is not worth the hassle. Background data is off and that breaks a few things. Screen is pretty dim and I ended up turning it up anyway. I have had similar battery life in the past anyway. I have had 7 hours 20 minutes of SOT before without this mode on and all my widgets working. I'm going to leave this mode off.
Click to expand...
Click to collapse
yup..i feels like the batrey saving mode is draining more batrey life than not using it..is there a solution for this ?