Database Develop

[Q] My phone was 100% battery 4 hours ago - now it's 45% :(

My phone was 100% battery 4 hours ago - now it's 45%
I haven't even hardly used it this morning.
This is ridiculous. Any ideas ?
Froyo 2.2 (bell i9000m)

Funkadelick said:
My phone was 100% battery 4 hours ago - now it's 45%
I haven't even hardly used it this morning.
This is ridiculous. Any ideas ?
Froyo 2.2 (bell i9000m)
Click to expand...
Click to collapse
Maybe sounds silly, but do You have 3G / HSDPA full timeturned on and/or any data eating app(s) running in the background? Usually these drains my I9000 really fast. If I take care to turn stimes 3G off (only 2G allowed) and shutting down the app(s) which run in background make my phone usable for a day.

it's 100% normal to suck so much battery life if you are constantly using 3G or WiFi or long phone calls

I know how to disable HDSPA, but how to disable 3g? :S tnahks

You are using it or something in the background is using it.
Full-on use (gaming) burns about 20% per hour in my experience. Browsing might be a little less but not much because instead of using CPU/GPU power it uses data.
The screen is the major burn, how long does battery usage say the screen has been on?
My battery drain is always pretty much exactly 20%/hour screen time + 1%/hour on time. It will deviate from this if I've played alot of music (especially streaming) since it uses power but not the screen, this drain rate will depend on the player and type of music (built-in player playing from SD card is lean, Tune-in radio streaming over 3G is a hog that heats the phone up, Slacker is in between).

bandita81 said:
Maybe sounds silly, but do You have 3G / HSDPA full timeturned on and/or any data eating app(s) running in the background? Usually these drains my I9000 really fast. If I take care to turn stimes 3G off (only 2G allowed) and shutting down the app(s) which run in background make my phone usable for a day.
Click to expand...
Click to collapse
I'm sorta new - how do you turn 3G off and turn 2G on ?
I don't have hardly anything running in the background (not that I know of)

filippm said:
I know how to disable HDSPA, but how to disable 3g? :S tnahks
Click to expand...
Click to collapse
I don't know how to disable anything lol
can I still txt with this off ?

AllGamer said:
it's 100% normal to suck so much battery life if you are constantly using 3G or WiFi or long phone calls
Click to expand...
Click to collapse
didn't use wifi - didn't make 1 phone call today at all

Could be a few reasons for that. If you've recently flashed a new firmware your battery stats may be messed up. Just run down your battery down a few times and it should sort itself out.
Maybe you turned your phone on while it was plugged in. This usually stuffs up the battery stats and can show as much as 30% extra battery when turned on that way. Always remove the charger before booting.
Also, to turn off 3g/hsdpa/data go to settings/wireless & network/network mode and select gsm only (2g). You can also download the widget '2g 3g' which will take you straight there. Also, you can uncheck 'use packet data'. This will kill all data which saves battery. I turn it back on with the widget whenever I need data again. The power button menu also has that option. I'm on 2.2.1 so it may differ if you are on 2.1.
Pretty sure you can still text with data off but may want to test it. If message fails then no. However mms send/receive won't work I think.
Sent from my GT-I9000 using XDA App

haloimplant said:
Browsing might be a little less but not much because instead of using CPU/GPU power it uses data.
Click to expand...
Click to collapse
i can do 5 to 6 hours straight of 3G browsing with screen on auto before it runs dry
3G + Screen = high power eaters
if i play 3D MMO (pocket craft) then it even less time

sxi200 said:
Could be a few reasons for that. If you've recently flashed a new firmware your battery stats may be messed up. Just run down your battery down a few times and it should sort itself out.
Maybe you turned your phone on while it was plugged in. This usually stuffs up the battery stats and can show as much as 30% extra battery when turned on that way. Always remove the charger before booting.
Also, to turn off 3g/hsdpa/data go to settings/wireless & network/network mode and select gsm only (2g). You can also download the widget '2g 3g' which will take you straight there. Also, you can uncheck 'use packet data'. This will kill all data which saves battery. I turn it back on with the widget whenever I need data again. The power button menu also has that option. I'm on 2.2.1 so it may differ if you are on 2.1.
Pretty sure you can still text with data off but may want to test it. If message fails then no. However mms send/receive won't work I think.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
I just recently upgraded to 2.2 froyo
i heard there's a battery stats trick, anyone know it ?

there's no battery stats trick . its just a logfile that's stored. nothing else. the trick you're probably talking about is calibration of the battery.
drain fully, charge to full while powered off. one or two charges like this should sort it.
Sent from another GALAXY

Hey I have a bell i9000 and I have to say that I'm extremely happy with my battery life, I've been unplugged since 9 am, its 7:30 now and my battery indicator is reading 37% with above average use (some phone calls, gaming, browsing...) I would advise you to do these things:
1) install darky's rom (9.2)
2) flash speedmod kernel 13b (very good on the battery)
3) use setcpu and set with these values, max:800mhz, min:100mhz (conservative), and add a profile for screen off with min/max @ 100 mhz and 100 priority level (don't worry, your phone will still feel snappy even @ 800mhz)
4) use a black wallpaper, since black is rendered by turning off pixels on an amoled display.
You should see some improvements, hope it helps!
Sent from my GT-I9000 using XDA App

[Q] Battery Issues / Questions

I read through quite a few of the battery issue threads but would still appreciate specifc advice on the issue I am having with mine.
I already couple times did the stats wipe as per the tweak guide on OT site but do not seem to have any benefit from doing it.
I am encountering the following issues:
Charging
Charging is very finiky. If i am charging in operation or while turned of the tab will seem to stop charging at certain levels of charge between 70% and 95%. If it happens while charging turned off I need to disconnect and reconnect in order to coninue charging, sometimes a few times.
If it happens when in operation similar will happen but also when the charge is reported at 100% I tun off the tab only to find out that the charge level reported by the off battery icon is not 100%. On different occasions it displlayed anywhere from 80 to 95% (estimated). Dont remember ever seeing it at 100%.
Discharging
If I turn on flight mode overnight I will get almost no discharge all night 0%-1% which seems very cool but my normal use is really wireless thethering. I just started not even 10 minutes ago from 100% charge and already at down to 90%. Just playing a game or browsing or reading the forum using the XDA app can completely discharge the battery in less than 2-3 hours. All of this in spite of the fact that I am on Jupiter, UC and UV heavily. I also manualy been stopping running services like skype and yahoo messenger.
I am afraid this could be a a battery hardware issue but would appreciate a confirmation or a suggestion of what else I can try before restocking and going to the service center to get the battery replaced.
Maybe you could advise which system apps I can freeze with Titanium and still be able to maintain wireless tethering and phone functions. Maybe an advice on a task killer and what I can and can't kill to keep the mentioned functionality.
While writing this post I lost 8% charge!!!

Dont get any task killers they kill system process then the system has restart them which kill battery. Have you tried wiping batterystat.bin when below 10% and charging to 100% while powered off.
Sent from my GT-P1000 using XDA Premium App

Or try backing up data and restocking and installing the WIPE version of
Jupiter or of kratos.
Sent from my GT-P1000 using XDA Premium App

aliaksei said:
Or try backing up data and restocking and installing the WIPE version of
Jupiter or of kratos.
Sent from my GT-P1000 using XDA Premium App
Click to expand...
Click to collapse
thanks mate, I always restock and do the wipe version. currently on Jupiter and will soon be moving over to Kratos. Reading good stuff about it.
aliaksei said:
Dont get any task killers they kill system process then the system has restart them which kill battery. Have you tried wiping batterystat.bin when below 10% and charging to 100% while powered off.
Sent from my GT-P1000 using XDA Premium App
Click to expand...
Click to collapse
The only way I would install a task killer would be if I could get someone to tell me which tasks to ignore so I wouldnt get this issue. No have not tried the below 10% wipe but will do so since you mentioned it. In the Kratos thread somebody mentioned to let it completely discharge and then without connecting to boot into CWM and let it further discharge. Aparently a system full discharge is not a full discharge and there is another couple hours juice left in the battery to keep the CWM going. Would this be a good idea?

Thanks to the helpers and to all you readers I think I found the issue. It seems to be a hardware problem but not with the Tab. The problem was with the charger.
I accidentally came across a car charger, bought it, used it to partially top up a couple times in the car and right away the Tab seemed a bit different. So I went back and bought a mains charger plugged it in last night and for the first time in quite a while it charged to 100% and it happened within expected time. Put it on charge at 1.30am and it was at 100% at 5.30am when I woke up.
Dont think it will effect the drain much but it is definitely giving me more juice to start with.

Oops!
Sent from my GT-P1000 using XDA Premium App

After running Kratos for quite a while with my new chargers and recalibrating by the book I am getting the expected level of battery juice. The tab charges efficiently to100% every time.
Drain is still an issue for me though. If i set airplane mode overnight (8hours) it will loose 1% charge but 9%-10% without airplane mode. On standby and in use the drain is consistant and fast. Not even UC and agressive UV helps.
I did a lot of app freezing and it realy doesn't make a major difference. Normaly I have only 4 services running. Settings, Google Services, AnySoftKeyboard and Google Maps.
I don't think I had the same drain on Hermes even though i didnt UC, UV and had at least a dozen services running. Think my battery life was better while others were complaining about wifi reconnection issues. ASAP I will try going back to Hermes to either confirm the issue with Jupiter/Kratos or to just accept this as normal and shut up.
Sent from my GT-P1000 (Overcome, Kratos) using XDA App

I finaly narrowed down the battery issue.
When on wi-fi i will get up to 3 days of battery life but only up to 16 hours on 3G.
It has been suggested to change the modem. I am curently on JPZ. My GT-P1000 was originaly purchased in Saudi and currently, until my next contract who knows where in the world, using it in Croatia.
A suggestion on the most battery efficient modem that works globaly would be appreciated.
Sent off the Blue Marble using GT-P1000 on Kratos via XDA App

MutantWizard said:
I finaly narrowed down the battery issue.
When on wi-fi i will get up to 3 days of battery life but only up to 16 hours on 3G.
It has been suggested to change the modem. I am curently on JPZ. My GT-P1000 was originaly purchased in Saudi and currently, until my next contract who knows where in the world, using it in Croatia.
A suggestion on the most battery efficient modem that works globaly would be appreciated.
Sent off the Blue Marble using GT-P1000 on Kratos via XDA App
Click to expand...
Click to collapse
FYI - Kratos Overcome ROM has(or had, there's a new one out today and it might fix this?) a bug with wifi where that if you leave the network and then reenter it without manually turning off then on the wifi, it will constantly reconnect(or something) and burn battery like mad.
For now I just flip the wifi off/on again when i connect to a new wifi since i didn't want to leave Overcome. Hopefully the new one fixes it.
---------- Post added at 07:05 AM ---------- Previous post was at 07:04 AM ----------
and by leave/reenter network, i mean physically walking outside the network range until it disconnects, not disconnect/reconnect through the tab settings.
It may only happen moving from one network to another (i go from home wifi to work wifi to home wifi each day).

Mate thanks for the reply but think you misunderstood. I dont have an issue with wifi. My issue is with 3G/mobile network over SIM card. That one burns the battery.
Sent off the Blue Marble using GT-P1000 on Kratos via XDA App

darkmattar said:
FYI - Kratos Overcome ROM has(or had, there's a new one out today and it might fix this?) a bug with wifi where that if you leave the network and then reenter it without manually turning off then on the wifi, it will constantly reconnect(or something) and burn battery like mad.
For now I just flip the wifi off/on again when i connect to a new wifi since i didn't want to leave Overcome. Hopefully the new one fixes it.
---------- Post added at 07:05 AM ---------- Previous post was at 07:04 AM ----------
and by leave/reenter network, i mean physically walking outside the network range until it disconnects, not disconnect/reconnect through the tab settings.
It may only happen moving from one network to another (i go from home wifi to work wifi to home wifi each day).
Click to expand...
Click to collapse
So to understand what you are saying explicitly.
At home I connect to WIFI -- XXZ.. Its already a remembered network. I drive away from home and come to office here WIFI is YYZ (Already remembered network). So it automatically connects. THIS CAUSES the batt drain????
If yes, I am extremely happy. Coz I dont turn off WIFI it connects at home n office automatically. Please corroborate!
Al

> I finaly narrowed down the battery issue. When on wi-fi i will get up to 3 days of battery life but only up to 16 hours on 3G.
I think that is normal standard consumption. 3G is known battery hog and you cannot compare its runtime vs. wifi. Is 3G on all the time, or maybe you attempted to use interval disconnectors (ie. battery saver apps) like JuiceDefender, Green Power, the likes?

Thanks jtdc!
I move around the world a lot and rarely set up wifi so most of the time I am full time on 3G. I dont use any power saving tools like you mentioned. Insted I use Titanium to freeze any apps that unnecessarily show up in running services.
I only noticed the differwnce with wifi due to an exteded visit with a relative who has wifi in his house. It wont be long and I will again be full time on 3G and would realy like to extend the battery life by minimum 4 hours. Are you aware if there is a known difference in power consumption between different modems or if any of the tools you mentioned can deliver this kind of savings purely by managing the 3G operation?
Sent off the Blue Marble using GT-P1000 on Overcome 7, v4 via XDA App

if any difference of modems that would be minimal to negligible. what always comes as the factor is the strength of signal and of course the tab which always scans for it whenever you're on the move. what you experience is typical, and in best case good because 16 hours on 3G always on? your battery and tab must have been setup really well.
if you can bear with interval disconnector apps like i mentioned, it would increase your runtime. for instance you can have the app connect every 15 minutes to 3G then be online for at least a minute to have all your internet dependent apps sync (email, messages, news, etc) and have traffic threshold detection in case in a minute some transfer still ongoing, then maybe 2 minutes is long enough. then for the next 15 mins 3G is off, then it will repeat the cycle. in that manner there's quite a lot of power to be saved and will definitely extend your runtime.
if really no other choice, i suppose you need to buy an external battery solution, the likes of energizer xpal, so you won't have to worry about battery life.

Great, thanks, that solution is acceptable for apps that require data services. Can you recomend an app to use for setting it up.
I expect it would prevent me from using inbound calls via Skype but how would using such an app impact incoming sms service and voce calls? Would they come through and would voice call quality be impacted.
Sent off the Blue Marble using GT-P1000 on Overcome 7 v4 via XDA App

"Green Power" in android market does the job and its free, that takes care of data connections (wifi or 3G) and will not tinker with the GSM radio, therefore sms and voice calls are untouched. The other app "Juice Defender" you can customize even to turn off the GSM radio, even downlclock the cpu, etc. which will result more savings but is a paid app.
Let us know how that helped to increase your runtime

[Q]Battery Life on LG O2x, how to make it last long?

Hey guys, just got my O2x a week ago and its great. It was flashed with 2.3 and at some point I tested updating using LG Suite and I went to 2.2.2
Anyway, just asking if how long do your batteries (stock) last? Tested mine about 3 days ago and within a day it got drained. Just using browser and played some music and that's it, no Youtube or heavy games or whatsoever. Already rooted my phone and removed everything that LG has there except for the keyboard, Suite, Mobile Support, and Home Launcher. Still, same results. Please help!!

I have been using the free version of juice defender and that has help my battery a little so I now cab get a good couple of days out of it. The free version only really stops data when the phone is locked but it seems to work quite well. I also installed juice plotter to see when my battery gets eaten.

Thanks will do that. So basically battery drains more if mobile data is on? Haven't really experience that on my old phone (which is not Android OS).

mags014 said:
Thanks will do that. So basically battery drains more if mobile data is on? Haven't really experience that on my old phone (which is not Android OS).
Click to expand...
Click to collapse
I had to charge mine every night and sometimes 2 times a day.
Now, on a GB ROM, and with mobile data OFF, it last for at least a day (24h). This is with WiFi on (when awake of course).
Install a widget to quickly turn on/off mobile data, and only use it when you need. Then your battery will not drain that quickly.
Sorry for my bad english
My battery "record" is over 2 days Well, actually allmost 4 days, but then I didn't have WiFi on neither..

Mobile data is the killer only for badly done apps. Things like fb and twitter that sync every hour etc. Make sure when you install every app you check its sync status. Make them as infrequent as possible
Also try see how low you can get the brightness. Mine stays at 30% until out in the sun (have a widget to up it).
Remember even if not using your phone at home etc to switch tho wifi on as its much better
On good days can get 30/40 hours between charges when low use
Sent from my LG-P990 using XDA App

Worth to mention is that to get the less battery drain from turning on the wifi you have to turn of the data. Some people forget that and leave both on making it a double drain.
My only tip that I have that I know works is use it as little as possible. Turn off every thing that's not needed in the matter of syncing.

I'm no expert but is that right? All of the data goes through the wifi when on and connected so data connection is irrelevant surely?
Sent from my LG-P990 using XDA App

Thanks for the input and somehow, I can feel the effects now. Also put LBE Security and turned off most mobile data permission on my apps and even if my Wifi is on, not much of a battery drain but at least it has less loss.

i think that 1day is the real time of this battery with 1charge...intense use...

doncoop said:
I'm no expert but is that right? All of the data goes through the wifi when on and connected so data connection is irrelevant surely?
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
Yes when wifi is on data is automatically off.... You cannot have both on...
Wifi is no very power consuming when it's connected idle to a network, but think to turn it off if no hotspot is there because network scan drains a lot.
O2X withTopogigi ROM 1.3/NeoBlaze kernel

Want to make it last long? Dont use it!!!

Sckank said:
Want to make it last long? Dont use it!!!
Click to expand...
Click to collapse
LOL.. anyways, i use juice defender. It does help somehow.

I have a same problem. Using my Optimus with MIUI ROM (Gingerbread 2.3.5) i only have 7 hours.
In my opinion,turning off all data connection to improving battery life, it's not a good idea when we choose Android phone.
So?
Sent from my Optimus 2X using xda premium

Try to install djdroid 0.9.1 !!!! With 3g data always on, 2 email with push, some phone and sms, and whatsapp always on i'm on 24h!!!!!!
Sent from my LG-P990 using Tapatalk

arifbsantoso said:
I have a same problem. Using my Optimus with MIUI ROM (Gingerbread 2.3.5) i only have 7 hours.
In my opinion,turning off all data connection to improving battery life, it's not a good idea when we choose Android phone.
So?
Sent from my Optimus 2X using xda premium
Click to expand...
Click to collapse
O_O My phone came with v20c 2.2.2 and had no issues, ran 3days per charge. Wish I had backups of original ril and BB for they were 100% on any I've tried since going through a bunch of custom roms.

I get 10 hours of *idle* time with 3g enabled. With Juicedefender things are okay, I almost always make it through the day and sometimes even 2 days when I'm not doing anything, but the battery just goes nuts if you use it. Sometimes I browse the web for a minute and bam 5% is gone, and I'm thinking to myself "what the hell just happened?".
You have to be very careful with apps that do not close properly. I discovered that Spotify was draining my phone like crazy and causing it to become very hot (draining it even faster, heat = dead battery in no-time) with no way to prevent this other than uninstalling the app. Then I installed a beta version of Spotify from their website and all is well. AccuWeather also goes nuts sometimes but that's resolved by deleting the widget on my home screen.
I run the latest nightly of CM7. Battery life seems to be about the same as the stock ROM for me. What's interesting is that active 3g data use drains the battery more than playing a game. I can play emulated PSX games for about 5 hours straight on a full battery with data controlled by JD.

Everyone should try the latest rom v20e (or the derivated version topogigi's rom). For me, it improves battery a lot! I don't even use Juice defender (and some people said it worsens battery).

v20e
yes Im on V20e and my battery is preety good !
Almost 2 days and I write almost 100 messanger/day and always wifi on checking emails,fb and more !

Hey guys, haven't posted since testing for about week, I guess...
Anyway, battery seems to be ok now. Juice Defender and Plotter works great, plus now on sleep, it just drain 1% per 2-3hrs or sometimes nothing at all, and its not SOD thats for sure.
Also tried Battery Calibration, it worked somehow also so with lots of messaging, wifi, FB, Tap Sonic, plus downloading torrents, lasted 24hrs in full charge with constant use.

2g + Wi-Fi drains the battery much faster than 3G + Wi-Fi for me. Both have a good signal strength.
Anyone know why this is?

Droid 4 battery issues...unbearable.

I spent a few hours looking through other threads, but nothing seemed to quite fit my scenario.
Stock droid 4 with the latest over the air update.
I use the phone very sparingly during the day, and my battery drains very quickly...
Usually take off the charger around 8am and battery is below 20% by 2pm.
My usage is usually one or two 5 minute calls, and probably 10mins of facebook.
Is there a good smart action I could try?
I had one that turned off the 4g while the screen was off, but it made sending picture messages unbearable...
My battery use indicator blames screen, then OS, then facebook....
I feel as if it's not reporting the culprit correctly...
Any help is much appreciated.

F3M4 said:
I spent a few hours looking through other threads, but nothing seemed to quite fit my scenario.
Stock droid 4 with the latest over the air update.
I use the phone very sparingly during the day, and my battery drains very quickly...
Usually take off the charger around 8am and battery is below 20% by 2pm.
My usage is usually one or two 5 minute calls, and probably 10mins of facebook.
Is there a good smart action I could try?
I had one that turned off the 4g while the screen was off, but it made sending picture messages unbearable...
My battery use indicator blames screen, then OS, then facebook....
I feel as if it's not reporting the culprit correctly...
Any help is much appreciated.
Click to expand...
Click to collapse
I've had similar issues, not sure what I did to cause them. When I first got the phone, 16hrs+ with what I would consider moderate usage was normal. I've flashed AOKP and the battery life is back to normal (on track for 15hrs today), but the stock rom is a disaster.
I'll let you know what I turn up (if anything), but I have a feeling I'll probably be wiping everything out since I actually like the stock ROM (plus no hw accel in ICS).
Edit: Also, how did you have a smart action turn 4G on/off? I was under the impression we can't control that at all, except via system menu. Is a downside to VZW's 4G...

I believe that was actually via the app Juicedefender.
even with it on i was still only getting about 8 hours...
I am semi interested in rooting/flashing a rom etc, but my last experience there was a disaster(thanks to a ****ty droid eris)

I disabled all widgets except for facebook, being that it's the only one I use...
The only non essential apps running all the time are battery circle, and facebook(widget i guess?)
I'm now charged to 100%, gonna see where these changes take me.

What are your settings as far as Brightness, Haptic Feedback, Screen Timeout, Vibration (Incoming Message/Call or End Call). Also, I recommend just using the FB app instead of the widget as I notice most of the widgets draw power even when the screen is off.
I am currently running Eclipse 1.3.7 w/ xrjxMod, Brightness all the way down, all vibration and haptic feedback is off. Since I am rooted I also used ROM Toolbox to adjust my scan interval to the minimum. I have the screen timeout to the max, but I always turn it off manually after use. I am constantly on either FB, XDA, txt messages or the occasional game/Netflix use and with the exception of watching a full episode or movie on Netflix, I am averaging about 6 to 8 hours on a full charge.

My battery is now sitting at 46%.
Since my last post I used the phone for 18mins of phone calls and nothing else.
The breakdown is 46% voice, 23% android OS, 12% display, 9% phone idle, 8% cell standby...
The brightness is as low as possible, haptic feedback is off, phone is set to vibrate(thats the only way I get calls)
All three location settings are on....Should I turn them all off? I dont know which are important...

I agree with azreal. Check your setting. Haptic feedback sucks up juice and unless you like it is more of an annoyance imo. There is an option for it in language and keyboard as well as in the screen menu for your soft keys.
Do you have your gmail setup to constantly sync? If its not needed un-check it in you accounts menu.
Are you leaving wifi on when your not in range of a remebered router?
If you are not in a strong 4g area set it to cdma only in your wifi and networks menu.
My opinion of apps to extend battery life is a negative one. Its an app that always runs to make things stop running???? Some work ok but most do not.
If all else fails I would suggest the eclipse rom for the d4. As long as you are safestrapped and follow directions properly you can't go wrong. In the case of a bootloop shut the phone off and reboot and you will come back to the recovery screen to try it again or go back to stock. Its nearly foolproof.
You may also want to do a battery stat wipe if your still having issues. Just discharge your phone completly, then fully charge wipe stats and completly discharge again then fully charge once more, and see if you notice a difference.
I get around 15-16hrs on stock and up to 22hrs on eclipse (varies with usage) by following these few things.
Sent from my DROID4 using Tapatalk

I have wifi permanently off...
I have 4g almost all the time.
I use a gmail, but I cannot find a way to limit it's syncing...I still want it to check for emails, I guess just not as frequently.

F3M4 said:
I have wifi permanently off...
I have 4g almost all the time.
I use a gmail, but I cannot find a way to limit it's syncing...I still want it to check for emails, I guess just not as frequently.
Click to expand...
Click to collapse
I would hazard a guess that having 4G on all the time is one of the main culprits. I leave 4G off unless I am browsing the web, forums, or something else where the extra speed is nice. I use the 4G Toggle widget from the market to turn 4G on and off. I always turn it off before hitting the power button to turn off the screen. No need for it to be sucking juice when I'm not actively using my phone.
Sent from my DROID4 using XDA

I just installed the toggle switch, I'm gonna give it a go.

To turn off the gmail sync go to accounts click on you tap the account. Then uncheck the sync box.
When you want to check your email go to the gmail app hit the menu and sync. Takes about 30 seconds extra but saves some battery.
Sent from my DROID4 using Tapatalk

I'm always skeptical when people blame gmail sync or 4G on battery issues. When the phone was new on stock, and on ICS now, I have three gmail accounts, a yahoo account, and one Exchange account all syncing in the background + 4G on 24/7 and getting around 16hrs of battery life. This was the case for weeks. Then I started having trouble with Verizon's Backup Manager, did a factory reset, and now stock battery life is ~ 8hrs, with 4G OFF
I'm thinking at the very least, there is an issue with the stock battery information panel. My feeling is it hides battery use by the stock bloatware...

podspi said:
I'm always skeptical when people blame gmail sync or 4G on battery issues. When the phone was new on stock, and on ICS now, I have three gmail accounts, a yahoo account, and one Exchange account all syncing in the background + 4G on 24/7 and getting around 16hrs of battery life. This was the case for weeks. Then I started having trouble with Verizon's Backup Manager, did a factory reset, and now stock battery life is ~ 8hrs, with 4G OFF
I'm thinking at the very least, there is an issue with the stock battery information panel. My feeling is it hides battery use by the stock bloatware...
Click to expand...
Click to collapse
I agree that there is probably more to it than just 4G or syncing. Especially where people are getting only 8 hours or so battery life. I personally have noticed definite battery savings with 4G toggled off when not in use though. I can usually still go most of the day even with it toggled on all day but with 4G off, except when I actually need it, I usually get to bed with 30% - 40% battery left as opposed to 10% - 20% left with 4G on all day.
Sent from my DROID4 using XDA

I would also turn all 3 locations off. No need to run the gps when not using navigation. I keep my 4G on as I use it frequently but I am going to try the toggle as well for the extra savings on battery when not netflixing/browsing.
Sent from my DROID4 using XDA

Yep. I'm also having big issues with my Droid 4 battery. First I thought it was the firewall. But even after uninstalling the app, the drainage is absurd. The battery drains so fast, the phone gets warm.
I don't know where to look. I read something about logcat in another thread but could't find it anymore.
My Droid 4 can work about 5 hours on one battery charge. No gps, no 4g and no wifi. If I turn on wifi, it lasts about 8 hours, so I'm suspecting that some process loops when in non WIFI mode.

If you're out of options try using an app called watchdog. It let's you see if there is an app that's draining your battery unusually fast.

Thanks for the tip. But what whatchdog should I use? There are many apps called watchdog

vmu said:
Thanks for the tip. But what whatchdog should I use? There are many apps called watchdog
Click to expand...
Click to collapse
Watchdog task manager lite (free version).

I tried that this morning. Still poor battery life on stock, but watchdog doesn't flag anything. Very weird
Oh well, I would definitely recommend AOKP for anybody having battery problems.
For me today: 4 hours 55 minutes since unplug, 80% left.
Screen time on: 50 minutes (!)
That being said, I do keep my screen on pretty low. Still, you can tell I've been using it...

Watchdog couldn't help me but. My data monitor showed that motorola.services was generating a lot of data the past few days (800+ MB :O ) and responsible for the battery drainage. I blocked it with droidwall. It's better now, but sometimes it still pops up and generates data despite the fact it's blocked.
So glad that I have an unlimited internet plan or else I was really screwed

Power recommendations...

Ok Guys,
Kind of a weird question, but I'm using one of the ICS leak ROMS.
With general usage, 4G/wifi, I would get between 18 to 20 hours, which for me is perfectly fine. The more wifi, the more battery time. No issues at all.
Recently, our office moved where we have a dead zone. I do have full wifi access, however being in this area absolutely kills the battery. I lose 12% every hour. As a precaution, I have disabled the mobile data, and confirmed wifi is working. I have confirmed that I can make and receive calls, and send/recivee txt msgs. However, battery results are the same. Is there anything else I could try?
I'm guessing, being in a deadzone, the phone is putting in overtime trying to find a tower....
Anyone have any ideas?
Thanks in advance...

Interesting... On my Bionic with the .232 leak the option to change network types is grayed out. I was thinking if you set it to 4G or 3G only it would save some battery since the analog radio sure do suck down power (if it even tries to use that as an option).
Not sure what to do. Hopefully somebody can provide something useful.

Apps to change radio
Drunkula said:
Interesting... On my Bionic with the .232 leak the option to change network types is grayed out. I was thinking if you set it to 4G or 3G only it would save some battery since the analog radio sure do suck down power (if it even tries to use that as an option).
Not sure what to do. Hopefully somebody can provide something useful.
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Click to collapse
You can definitely try out a couple of apps from the appstore to change your radio settings in one of the ICS leaks. The first is called "Phone Info" and the second is called "LTE OnOFF - HTC Thunderbolt". See if going with 3g (CDMA auto prl works well for me) only will help your cause.
You could turn the radio completely off, but then you obviously wouldn't get calls, texts, etc.

Ok Guys
Here are my findings...
Looking back, it seems during my move, I also upgraded from Eclipse 2.1 to Liquid ICS around that timeframe. So I back tracked and installed eclipse 2.1 and tested. Here are my findings:
on Liquid ICS 1.5mr:
In deadzone in my office, with wifi turned on, mobile data disabled, I get barely 1 hour per 10%
Everywhere else, 4g/wifi mixed. More wifi, the better, but I get roughly 2.5 hours per 10%
I re-flashed Eclipse, this is what I found
on Eclipse 2.1
In deadzone in my office, with wifi turned on, mobile data disabled, I get approx 2.5 hours per 10%
Everywhere else, 4g/wifi mixed. More wifi, the better, but I get roughly 2 hours per 10%
Overall, the ICS battery usage seems to be much better under normal conditions. In a deadzone, seems to eat away much more battery, even when mobile data is disabled. I'm geussing that its prob checking for a tower much more often then GB?
Any help would greatly be appreciated.....Thanks!

Hey Guys
Just wanted to update you on my findings....
Ok, after playign around, here is what i did. With WIFI turned on, I was getting barely half a bar in the radio signal. For a goof, with WIFI turned on, I went into phone info, and disabled the radio, and re-enabled it. within 2 sec, the radio came up and got half a bar again, but a few sec right after that, I got like 4 or 5 bars. After testing in this state, i get roughly 5 to 6% depletion per hour. WHich is MUCHHHH better.
I have a feeling that with WIFI turned on (mobile data seems to be disabled when in wifi mode), and u turn on the radio, that it connects to a different tower entirely. Because when I walk outside, and disconnect wifi, it goes to 4G, but then u can see it go from 4 to 5 bars, to 3 bars which is normal for me for that area.
Hope this helps someone....but it helped me a great deal.