HyperDroid - Great battery life - HD2 Android Q&A, Help & Troubleshooting and Genera

Okay, as far as battery life HyperDroid is definitely one of the best i've used... here's my stats and what i've done to get this;
HyperDroid v1.5
2gig PNY sd
CleanEX ozRom WM 6.5
radio 2.11.50.26
Task manager (after every use *with autokill feature*)
SetCPU clocked at 998 for low and 1152 high performance
422/422 for screen off
dpi set at 220 res
and did this before (dont know if it helped but it seemed to...)
*fully drain battery until phone will no longer turn on, plug in, boot WM 6.5, let charge to 100%, then boot Android, unplug, completely drain until no longer turns on, boot Android, let fully charge*
After this was all said and done, these numbers are with moderate use, facebook, web browsing, little gaming, average talk, no music, linpack/quadrant use, xda app usage... everyday stuff
I took the SS when i got home from work, i set the phone down the rest of the night, hoping to pull off another screenshot before i settled for the night, it reached 2% batter life with 18hrs 23 min 15 seconds, before the phone shut down... while attempting to get the screenshot the phone shut off and was forced to plug back in ( i was pissed but what can you do?) and stats reset.
Give it a try and see if you like it, it works perfect for me... daily driver usage all day with what i use it for.

getting about 5-7 mah drain on standby which is about 2% per hour.

16mA in stand-by mode
that's about *% per hour << idk how many hours

use juice plotter. you can see your battery drain in a plotted graph.

Had good results with HyperDroid also, was able to do between 25-32 hours depending on how many calls i received.

25-32 hours is a lot? on standby on 2g connection?

Related

Battery Life Stories

Hello,
I have been following these forums for a couple months now, and wow I am impressed. I love this community. I feel like I haven't contributed yet, so I started this thread. Below are my phone specs and my battery success. If this helps you, great! If you can contribute to this thread with your success, please do. If a similar thread is around, let me know; I don't want to take up extra space if I don't need to. My primary goal is for people to share their specs, usage, and battery life with Android. I had my brightness on high and 3g, GPS, and sync on (things you would normally want on all day). Peace!
Specs:
Leo - T-Mobile version
SD - 16GB class 4 (not sure brand, doesn't say)
Radio - 2.12.50.02_2
ROM - 28/7/10 Elegancia V 1.0 Final, Max Sense (T-Mobile version, if there is a difference?)
Android- 03/08/10 shubCRAFT CM6RC2/Froyo/Themed V1.1
Kernel - Cotulla 2.6.32.9#103
Info:
Unplugged at 07:30 am with 100%
Immediately checked email/XDA app for any updates (yep, I'm lame)
Standby for about an hour
Music/web browsing on Train to work (30 min)
Standby for 3 hours
Video playback during break (20 min)
Standby for 5 hours
Music/web browsing on Train home (30 min)
Home for about 3 hours with mix of standby/web browsing
9:10 pm - 15% warning (close to 15 hrs)
I stopped at 15%, because that is my "safety zone" for normal usage.
Anyone else care to share similar stories?
Before sleep yesterday, i have 97% battery, but when i wake up today, the battery left 47% :S 6hours drain 50% battery life only in stanby!!
when i checked background for what was running, Nothing..... maybe the android's screen is off, just it's not really sleep..
Hey guys, it's totaly normal, the actual HD2-Android roms are RC's, these problems will get fixed, just be patient.
My battery expirience:
8:30 - took from charging at 97% and went to work
normal use @ work (sms, googletalk, twitter and facebook)
15:00 - 15% warning
its about half the time from my windows rom, i think at current state of development it ist totaly OK.
And if you use SetCPU you can get a 1% discharge per hour in standby mode, if set up correctly
And what Waldemotor said, it's still in development.
Powermanagment isn't fully functioning, yet.
patience young grasshopper
5:40pm 100% when leaving work, started listening to music
5:55pm Standby for train ride
6:45pm Listening to music
7pm: Stopped listening to music
7-10pm: bit of xda app, checking my ps3 friends to decide whether to play MW2, showed the kids a couple of games
10pm-7am: Standby
7:40am-7:55 - Music before train
7:55-8:45 - Standby
8:45-9am Music
And here I am 09:35 and I have 30% battery left.
maseo said:
And if you use SetCPU you can get a 1% discharge per hour in standby mode, if set up correctly
And what Waldemotor said, it's still in development.
Powermanagment isn't fully functioning, yet.
patience young grasshopper
Click to expand...
Click to collapse
I'm with Darkstone Froyo 1.1 and i sync:
Gmail (push)
Exchange Mail, Calendar Contacts) every hour
Facebook every 2h
Twitter every 2h
I use SetCpu set to 245/245 profile screen off and 998/245 standard profile
I also Use
Juice Defender (paid version from market) :
With this i can plan usage of WIFI/3G :
- U can choose from push up to 5mn every 2h, i don't plan
- U can disable during night my night is from 22h to 7h
- disable if battery under 15%
- enable when i use choosed application in a list form exmple email, browser ... (keep disable elsewhere)
- U can choose automatically enable when screen is ON i don't : i prefer enable with application
Note: it's possible to control CPU too but i don't .. i think setcpu is better
- Wifi may be auto disabled when there's no access point near u
Estrong Task manager
- With this i kill all application except a choosen list when screen is off
GPS is always Disabled
With theses applications and settings i can get:
0% lost during night
and during day, my battery life depends on how much i use applications with 3G or Wifi and ... over all how much i phone
Note :
I've same conf on my Htc Hero ... (Android 2.1 hect sense) my battery life is almost 3 days
With HD2 desire V5 results are not so good
So i recommend :
Darkstone Froyo 1.1 (waiting for next build)
Wirh SetCPU, Juicedefender (paid version on market), and Estrong task manager
JuiceDefender has a free version but wiyh less options but u can try it
U can control battery JuicePlotter : it draws a graph for ur battery consumption and temperature telling u if wifi or APN were enabled.
Hope my contribution will be useful for some people
A+
Jpq
Went to work with a full 100% battery, did a bit of webbrowsing and texting. It was down to 30% within about three hours.
But I'm not fussed. As it's been said, it's still in its infancy. I've done nothing to try and amend it (SetCPU etc). I just have everything running on default settings.
When things drop so far though, I just switch back to Windows if I'm not near a charger.
My 2 cents on the matter
I own an HD2 since last Friday, I think. I found out that it can run Android and I wanted to test it. I spent an entire day with the Android. I started with a full battery, but I browsed the market, installed a lot of applications, listened to some music, even played a few avi files. The battery is drained faster than on WinMobile, but just like it was pointed out here, Android is still in development. The main idea is that I used it a lot and the battery was almost drained in 9 hours (I also stop around 15% too). I used Darkstone Froyo 2.1 build (Dan1j3ls Froyo V1).
- zImage 3/8, Dan1j3ls Froyo V1 (without Sense)
- setCPU enabled (always ondemand between 245 - 998)
- Yesterday 7 am - unplugged with 100 %
- Sync enabled with 3G over the day, some web browsing and playing around all day, measuring
- *#*#4636#*#* -> Phone info -> Menu -> set frequency band to Euro band, afterwards the constant 2G/3G flapping disappeared, switch to 2G only happens, when no more 3G available
- 11:30 pm went to bed, disabled Data overnight -> 50% left.
- Woke up this morning 8 am with several alarms ringing -> still 41% battery left.
With little usage good two days possible!
foxcheng said:
Before sleep yesterday, i have 97% battery, but when i wake up today, the battery left 47% :S 6hours drain 50% battery life only in stanby!!
when i checked background for what was running, Nothing..... maybe the android's screen is off, just it's not really sleep..
Click to expand...
Click to collapse
I left mine at 98% before going to bed and 8 hours later (yes, I slept that long) there was 78% left...
I'm on MattC's build, German Vodafone Stock Rom (1.72...) and 2.10.._2 Radio.
SetCPU activ and Exchange checking for mails every hour...
However, I'm not sure if 20% or 2,5% per hour is good or bad
u can globally underclock ur cpu for better effect, I run mine at 80% clock (main profile)
Im now on my 3rd day of using mattc v1.4.
1st day battery life was SHOCKING (as to be 'expected' (can you expect a shock???) for a RC running off an SD card).
I probably got about 4 hours heavy use from 100% to 10%.
2nd day I set up SetCPU with profiles for 'screen off' and <25% battery, disabled all data except wifi, disabled gps (tried juice defender but didnt find it useful as I never really use mobile data anyways). LEFT SCREEN AT 100% BRIGHTNESS!
This ^^^ helped with battery drain a lot and stopped the huge drain i was getting while the phone/screen was asleep.
BUT on day 2 I got a WEIRD problem:
Tried to set a pattern for unlocking - Put phone to sleep and rewoke to test lock.
The screen came on almost all white with my home screen barely visible underneath the white 'vail'.
I shutdown android and booted into WM6.5.x.
THE WEIRD THING IS THAT BEFORE THE 'CRASH' MY BATTERY SHOWED 49% BUT AFTER A REBOOT IT SHOWED 14%!
Multiple restarts into winmo and android still showed 14%/13%! WTF? I had to start charging again from there.
Now the HD2 wont charge past 91% (in android), untested in WM. I unplugged the USB and replugged numerous times - still wouldnt charge past 91%.
Left on charge overnight (android) and still at 91 this morning.
Been using it quite heavily ~3 hrs on and ~1 in standby today with lots of wifi and batt has gone from 91 to 76%.
ONLY LOSING 0.5 PER HOUR in standby now.
So basically, my battery is going nuts lol.
But so far I'm more than happy with it (considering it running from sd etc etc).
To all devs working on android builds - THANK YOU and keep up the good work.
Anyone else had any battery anomolies like mine?
I also experienced wrong loading behaviour, or maybe it's just the percentage showing wrong.
The following helped for me: Reboot into Windows Mobile, there the battery loading status was display correctly as 100% (also with the status LED glowing green constantly). Then with loading cable still plugged in, boot Android, then in Android the percentage reading was correct again.
really offtopic but anyone care to share how do you choose what to run in the background and what not? I use the task killer app but I kill the apps and they just reapear without me starting them.
thanks for sharing brothers!
can anyone comment on the battery life/consumption with this latest kernal and 384+ RAM ?
im using zimage 08/03 right now with Darkstone froyo v1 and my battery life is pretttty bad...
it will go from "93%" (full, it wont charge over), to about 25% in 4.5 hours..
and this is making NO phone calls and on standby. I have setCPU with the settings from the other thread too
just trying to figure out a good solution
I'm using the CM6 froyo.
Without setcpu and without the Aug 3 zimage, my battery drain was about 12% an hour on standby.
Now, with the Aug3 zimage and setcpu, I have about 6% battery drain per hour on standby.
Win mo: stock Tmo-US ROM. 2.08 radio. (both stock). 16GB class 2 MicroSD.
I always make sure I charge when phone is either off, or in winmo. I never charge the battery on android. I don't yet trust the android kernel enough to charge my battery correctly.
5%/h in standby problem
thesweeney said:
Im now on my 3rd day of using mattc v1.4.
Anyone else had any battery anomolies like mine?
Click to expand...
Click to collapse
Yes.
Not matter what I do, and whatever distribution I'm using there is huge battery drain in stanby mode (~5%/h). I changed ROM, radio, android version (mattc, darkstone, ...). Even used winmo registry tricks.
HD2 (eu), ROM Energy, checked mattc v1.5, shubCRAFT 1.3, NexusLeo v1, ...
But there was a time I had very good results - like 1%/h in standby. Do not know what changed (except changing Android ditribution very often). The other users (a lots of them) has 1-1,5%/h in standby mode, so I'm sure it is possible. There is some kind of setting/mistake or something to discover. For now Android (even running form SD) is capable to have as good "battery results" as winmo.
I will try
- charging in winmo only
- sd format or using another microsd card
- clean Android (without data and additional software)
cw-data said:
- zImage 3/8, Dan1j3ls Froyo V1 (without Sense)
- setCPU enabled (always ondemand between 245 - 998)
- Yesterday 7 am - unplugged with 100 %
- Sync enabled with 3G over the day, some web browsing and playing around all day, measuring
- *#*#4636#*#* -> Phone info -> Menu -> set frequency band to Euro band, afterwards the constant 2G/3G flapping disappeared, switch to 2G only happens, when no more 3G available
- 11:30 pm went to bed, disabled Data overnight -> 50% left.
- Woke up this morning 8 am with several alarms ringing -> still 41% battery left.
With little usage good two days possible!
Click to expand...
Click to collapse
same case for me as little usage (sync email few times a day manually, play few songs for kids, little browsing and market). 2 days with batteryminder. ~ 50% since last charged 1 day ago.
The one that making real different for me is when I used GSM auto (PRL) (in *#*#4636#*#*).
Also auto turn to airplane mode 11:30pm-7:00am for me.
I also applied the sdcard registry changes in winmo. seems this will take some effect also.
Post best Setting for battery life
lemar123 said:
Yes.
But there was a time I had very good results - like 1%/h in standby. Do not know what changed (except changing Android ditribution very often). The other users (a lots of them) has 1-1,5%/h in standby mode, so I'm sure it is possible. There is some kind of setting/mistake or something to discover. For now Android (even running form SD) is capable to have as good "battery results" as winmo.
I will try
- charging in winmo only
- sd format or using another microsd card
- clean Android (without data and additional software)
Click to expand...
Click to collapse
The solution was to
1. I did battery calibration (not sure this task was really necessery) and checked winmo battery drain - to make sure battery is not broken by Android. No, it didn't
2. Charge battery to fulll on WinMo (or turned phone off), boot Android then remove /data/system/batterystats.bin .
Use this commands from Android Terminal (free).
su
rm /data/system/batterystats.bin
Click to expand...
Click to collapse
3. Restart Android (in that moment I had expected 1%/h drain) and use battery till it come empty
Thats all.
Propably, after many android switches (new distribution tests) the battery stats was broken - collected partially in different Android version.
Then finally, after 1 week with 5%/h battery drain problem in standby I have 1%/h in standby again. I think it is standard drain in haret.exe version.

How is the battery life now?

I started messing about with the android builds when they first started to appear and the only thing that stopped me using it as a daily rom was the battery life.
I have been away from the forum for about a couple of months or so and was just wondering what the state of play is now with regards to battery life on the new roms?
Cheers
Well, mine lasts at least about one day and a half with moderate use.
With moderate use I mean making calls about 20 minutes, surfing the internet for about an hour, downloading apps, texting and gaming at least 1 or 2 hours.
When I get home in the evenings I have about 40% left.
My data connection is always enabled.
I never used apps like Juice Defender or something else.
I just have SetCPU und some profiles enabled. Nothing more.
I can get through the day with a decent amount of battery life. I listen to about 20 minutes of mp3's and check xda many times then stream pandora on the way home and I have about 57 percent left and I started my day 5:30am this morning and its now 3:19pm
Its my daily driver as I cant find a point where I need to panic and throw my reserve battery's in even though I have them just incase.
I use shubcraft 1.5 with setcpu settings and data always on.
Well I am still bashing my head against the wall when it comes to battery life. I've tried different builds, settings, registry changes and it just drains away.
Went to bed at 5.40am this morning (after falling asleep on the sofe ) with battery 100%, woke up at 8.45am and battery was down to 77%!
23% in 3hrs in stand by. It does my head in.
Like others its this that stops me from using daily builds.
campbell.0 said:
Well I am still bashing my head against the wall when it comes to battery life. I've tried different builds, settings, registry changes and it just drains away.
Went to bed at 5.40am this morning (after falling asleep on the sofe ) with battery 100%, woke up at 8.45am and battery was down to 77%!
23% in 3hrs in stand by. It does my head in.
Like others its this that stops me from using daily builds.
Click to expand...
Click to collapse
Have you used current widget to see what your milli amps usage is during sleep mode.
Also are you using setcpu and setting profiles for screen off
I've gotten pretty good battery life 1.5-2 days with moderate use. I'm using Miri's elegancia WINMO rom + Shubcraft 1.5 + SetCPU. I noticed android drains tremedously less battery life on standby when Exceller Multiple Build Loader is used to launch Shubcraft by default set at 3 seconds. I use this setup daily and it drains even less battery then running the WINMO builds i've experienced.
All percents are per hour.
I drain about %1 in standby. (Usually 5-7mA in currentwidget)
I loose around %10 in normal usage when screen is on. (around 140mA with %40 backlight) If I turn on brightness to %100 and use wifi tether it goes up to around %20.
Standby current should never be above 10mA. If you get 60mA then you have high standby drain bug. Try new lights.so file or keep your gps turned of even if you don't use it.
New kernels with new builds don't have the 60mA bug even if you don't turn off gps, or don't keep the lights turned on while booting haret/android.
For people who have high drain:
-Try changing your sd card
-Use a newer evo based kernel/newer build
-update your lights.so file with a new version from gauner1986
-try booting android with keypad lights turned on while you launch haret.
-disable gps
User currentwidget to check your drain in 1 minute interval. Should be between 5-11 in standby. Must not be 60mA in standby.
memin1857 said:
All percents are per hour.
I drain about %1 in standby. (Usually 5-7mA in currentwidget)
I loose around %10 in normal usage when screen is on. (around 140mA with %40 backlight) If I turn on brightness to %100 and use wifi tether it goes up to around %20.
Standby current should never be above 10mA. If you get 60mA then you have high standby drain bug. Try new lights.so file or keep your gps turned of even if you don't use it.
New kernels with new builds don't have the 60mA bug even if you don't turn off gps, or don't keep the lights turned on while booting haret/android.
For people who have high drain:
-Try changing your sd card
-Use a newer evo based kernel/newer build
-update your lights.so file with a new version from gauner1986
-try booting android with keypad lights turned on while you launch haret.
-disable gps
User currentwidget to check your drain in 1 minute interval. Should be between 5-11 in standby. Must not be 60mA in standby.
Click to expand...
Click to collapse
I believe I have that bug. Only issue for me is this. There are times when I do run android and I draw 5ma in stand by mode, however whenever this is the case I get SOD. If my phone is drawing 60ma in standby mode my phone works just fine with no SOD. So for me its kind of a lose/lose situation. I'm not sure what to do.
My setup:
Miris GTX 2.5
chiasofts moomoo mattc evo 1.01
michyprimas evo r0 kernal
Mine used to draid about 60mA in standby, but updating my lights.so file and keeping the GPS off when I'm not using it bumps it dow to the 3-5mA range. This was the case at least when I used Shubcraft1.5. A lot of the newer kernels have the updated lights.so file already though
How do I update light.so ? may somebody post a link where to find it and how to install it?
I love Android on my HD2 but this Drain bug is reallx kinda annoying when you loose 9% per hour only in standby...
i've got sick usage too..
it drains in about 6 hours standby and 2 hours when screen is on..
i have NRGZ's 28 august energyrom with 2.07.50 radio and mattc's android.. i think i'm gonna update my android and hope it will be better..
I am using the Energy Cookie ROM with Froyostone 3.1 build and the new 2.15 radio. Only using 6-7mA in standby so no problem now to last a couple of days on light use. Call and signal quality is better for me vs. 2.14 radio using a TMOUS phone in the San Francisco Bay Area. It is also unlocked if that makes a difference. Seems to use much less than the standard WM OS. The Android 2.2 is my daily OS now.

Android Mattc Battery Drain

Hey guys, ionno if its just me, but my T mobile HD2 battery drains very fast while im using android, i am using the stock 16gb micro SD class 2 card and I average less than 12 hrs on a charge and all i do is moderate texting really.
Im using:
mattc Leo + Froyo w/Sense 1.8
2.10 Radio
Energy Rom
7.1 Hastarin kernal
SETCPU Conservative mode 214mhz min, 614mhz max
HSPL 3.0
On Current Widget my idle is always around 60-61 mah, and when i awake it from sleep it jumps to 168-230 mah! I also use Taskiller and let that run in the backround at all times, although i dont think that program would eat up that much power.
Any idea how i can extend the battery life because after doing all this it seems so far i have no luck.
I use my phone during the day as an mp3 player at work and see a normal battery drain while the screen is off.
In the evenings, I become a texting monster, sending and receiving several hundred texts over the course of three or four hours. Even with my phone plugged in to the original charger, the battery drains. Without the charger, the phone barely lasts more than an hour on a full charge.
Personally, I think it's the screen brightness that kills the battery, since I don't run background processes and only send/receive text messages. However, there is a good possibility that it is a radio issue.

[Q] Battery issues

Ye, my battery just went from 48% to 3% in about 3 minutes. Does anyone have any idea why this is?
Same problem here. From about 43 % down to 7 % while it started to charge the battery with the original charger. Afterwards the Tab didnĀ“t charge at all. Battery drained and got very warm.
I Called Vodafone and was told i have to send the Tab in for fixing. I hate waiting for the tablet 3 weeks.
Update: After 2 hrs. of waiting the Tab cooled down and i was able to start it again. Did a factory reset and was able to charge again with the wall mount charger.
Just wanted to bump this as my battery life is miserable and it discharges really fast in standby...
My HTC desire has been on for 52 hours, used for a lot of stuff and is at 20% battery.
The Tab charges to 100%, I unplug it at night and in the morning it has lost approx 10%, I leave it a few more hours and it't down to around 60%. This is with no use and no apps running!
I've tried killing apps or leaving them in memory and it doesn't seem to make much difference. I also use setcpu and have a profile where the CPU speed decreases when in standby to conserve battery?!
If I charge to 100% and use it constantly, I get fair life out of it maybe 4-6 hours of light use - some streaming over wifi, web surfing, kindle, sudoku etc. If I use it occasionally or heavily though, it dies very quick and if I leave it at about 40% on the evening, it's generally dead in the morning.
Why does it discharge so fast in standby??
Check to see if it continually searching for a signal. I've noticed that mine loses a lot of power constantly searching for a signal, cellular and wifi. So, I used airplane mode to conserve power. Remember that it syncs to different services that require it to periodically download data. That may be your issue.
Sent from my SCH-I800 using XDA App
Thanks Chuck, I use it in airplane mode all the time and only use web over wifi (bought unconnected in the UK). Would it still be syncing for email etc? I didn't think it could turn on wifi and sync itself but only when I turn wifi on. I always turn wifi off when not in use. I had problems with widgetlocker asking for superuser permission quite often and that killed the battery quicker so I removed that until it's fixed and saw an improvement.
I'm not seeing the times that other people are though, losing at least 10% overnight and there's nothing really running.
I installed battery doctor and the times it quotes are high for different types of usage and nowhere near what I'm getting.
I'll make sure email and calendar are set to manual update, adjust brightness etc and see what happens. It seemed better when I first got it so perhaps an app is draining it? I installed system panel to monitor this but it's hard to see what is actually draining it, any recommendations anyone???
Quite disappointed at the moment, ipads barely drop 1% overnight and I'd rather not have to turn it off to conserve battery when it should maintain it in standby...
Check the task manager and see what application are running. Also you can go in settings- about device - battery use to see if a specific application is using your battery out of normal. Also , the display is generally the battery hog, you may have set it to a super high level. One last thing you may have the buggy 3d gallery app, and it will show in the battery usage.
P_
this is an interesting problem. its very similar to the Apple Macbook Air.
The Macbook Air was very thin - very nice looking - however it needed to depend on wifi to do most things.
the association i am trying to build here is this: the Tab needs a bluethooth headset so you dont get all your calls broad-casted over speakers and that could drain the battery a lot.
for me the battery drainage didnt seem so bad and its been on for the last 36 or so hours. the battery icon didnt look like it moved so much and i was impressed considering this thing had a gigantic battery. then i loaded up a utility that read the battery and said i had 59% so my jaw dropped. not only is the battery indicator wrong there maybe rogue processes casuing the battery drainage. and this is on 2.2 which is supposed to be somewhat battery efficient.
i dont know - frustration is what i am all about here with this thing. it seems that every time i buy a new android device i want to move to another android device. no one is getting the damn thing correctly setup.
Am at work right Now, Charged the tab overnight, just few minutes ago my battery said 60% left and now the tab is completely dead, wont turn on, I ll wait until i get home to charge, fingers crossed.
Change the battery...
Sent from my HTC HD2 using XDA App
shubh.27hd2 said:
Change the battery...
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
its been charging for 2 hours now and battery is not even warm to the touch plus no power yet... if charging is what you intended....
more than 3 hours of charging and counting and still no sign of life...This device is just 8 days old today from Brand new...
mudstuff said:
Just wanted to bump this as my battery life is miserable and it discharges really fast in standby...
My HTC desire has been on for 52 hours, used for a lot of stuff and is at 20% battery.
The Tab charges to 100%, I unplug it at night and in the morning it has lost approx 10%, I leave it a few more hours and it't down to around 60%. This is with no use and no apps running!
I've tried killing apps or leaving them in memory and it doesn't seem to make much difference. I also use setcpu and have a profile where the CPU speed decreases when in standby to conserve battery?!
If I charge to 100% and use it constantly, I get fair life out of it maybe 4-6 hours of light use - some streaming over wifi, web surfing, kindle, sudoku etc. If I use it occasionally or heavily though, it dies very quick and if I leave it at about 40% on the evening, it's generally dead in the morning.
Why does it discharge so fast in standby??
Click to expand...
Click to collapse
I am experiencing the same thing. Tab on flight mode and charged to 100% overnight. Unplugged at 9am, still on flight mode with no apps running, and it is 88% at 2pm.
12% drop in 5 hours with no usage whatsoever is way too much imo, comparing let say to my HD2, even not in flight mode. Wonder if they have a bad batch of battery for certain tabs........
Just wanna report back after my last post. When the percentage was dropped to 85%, I did a reboot. And guess what, now it displays 95% !!!!!!
5% drop from the morning til now in flight mode seems right and okay. Does it mean the tab is miscalculating the percent left?
PS.
I have been following the voltage in Spare parts this morning. All settings are the same (no apps opened, same screen brightness and in flight mode. Only turn on to record voltage)
94% - 4087mV
91% - 4081mV
88% - 4075mV
85% - 4067mV
But then after the reboot
95% - 4040mV
Man, I am not sure whats going on here........
shinji21 said:
Just wanna report back after my last post. When the percentage was dropped to 85%, I did a reboot. And guess what, now it displays 95% !!!!!!
5% drop from the morning til now in flight mode seems right and okay. Does it mean the tab is miscalculating the percent left?
PS.
I have been following the voltage in Spare parts this morning. All settings are the same (no apps opened, same screen brightness and in flight mode. Only turn on to record voltage)
94% - 4087mV
91% - 4081mV
88% - 4075mV
85% - 4067mV
But then after the reboot
95% - 4040mV
Man, I am not sure whats going on here........
Click to expand...
Click to collapse
let me jump in here again and share a similar deli-ma i had with my X10i.
while i was messing around with some custom roms i decided to stick to one that looked somewhat nice. well the funny thing is the battery indicator would always display 100% and for about 4 hours it would drop ever so slightly. then i removed the battery and put it back in -- the battery indicator showed 0% and i got a red light flashing ....
after screwing around with it for a bit i re-flashed the stock firmware from Sony-Ericsson and magically my battery meter and my battery worked fine.
so to sum up -- it maybe a software issue like the one i had on my SE X10i above?

[Q] Battery life not as good as I thought on NAND

Hi everyone. I had NAND installed on my HD2 now for about a month and a half. One of the things that I haven't seen on my phone is better battery life. This is the first phone I have with a data plan so I'm really not sure how much of the battery drains with data. Here is my daily routine. I charge my phone overnight, by 11am-12pm my phone is just about dead. I put it on the charger until about 4pm; usually it's fully charged by then. By the time 10pm comes around it's almost dead again. Doesn't seem like good battery life to me. Someone please let me know if I'm missing something.
Thank you all!
Depends on what you're doing with your hd2.
If you spend a lot of time on the internet with either wifi or 3g, then that drains battery pretty quickly, as with any device. Playing games or watching videos is the same thing, although to a hiigher extent with games. Keeping the phone screen on is also one way to drain battery quickly.
You should install current widget and monitor your standby times, etc. In standy by, your phone should be consuming 4~6 mA ideally.
If you want to monitor your battery usage, first download and install CurrentWidget, enable logging while the phone is on standby to see your standby usage.
Second, need to check battery usage on standby after a call, there are some kernels with a known bug that prevents the phone from going to sleep, consuming 60ma on standby.
Third, Do a battery calibration, it does help a lot if you have never calibrated your battery, android tend to mess up battery reading after a while of not being calibrated. There's a thread about in on forums, search for it, REALLY good info there.
Fourth! check out if you are in a zone with crappy 3G, if the phone has to turn 2g/3g off and on too often it drains battery like whoa.
Fifth, take note of max and min voltage readings with CurrentWidget, your battery might by wearing out (should be maxing at 4.2v and min around 3.3v - 3.6v depending on kernel).
Another thing, before your phone dies, check out battery usage on Settings, see if any program is eating your battery, and check out how long has your screen been on, and post it here
I've always had WAY better battery in Android, even SD, than WMo, MSN/push email killed battery in WMo in about 6 hours, without use, just standby. Android get up to 4 days in standby with Gtalk/Gmail/Exchange Mail, all on Push, along with weather and twitter. With hardcore usage, the battery last between 6 and 7 hours top (Screen on for 4-5 hours), while Gaming, it wont last more than 4 hours (CPU at 100%, Screen always on, GPU at 100%, Brightness 100%).
Normal usage (between 40 mins and 1 hour of Google Maps with GPS on, between 3 and 4 hours of music thru Bluetooth with my car, 10-15 mins talking, about 20-30 SMSs and quite a bit of Gtalk) it makes it thru the day, lasting about 12-14 hours.
Such a low battery life is probably cause your phone is not going to sleep, it should be at 2-5 mah on standby.
Hope it helps
I can play an hour of pokemon (gba rom), listen to pandora whenever im in the car, surf the net for an hour or two, and with a total constant usage of about 5 hours, and at the end of the day ill be left with 30% battery still.
If I don't use it often it will last 40 hours +.
Maybe try a different nand rom?
Im running hyperdroid nand
Zephyrot and kangpeter, Im jealous of your battery life. I'll try what was posted. Thanks for the replies!

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