Related
How is everyone's battery life... I think I came in overhyped by some reviews like engadget's praising the battery life of this phone but in reality haven't been too impressed.
I have to change how I use my phone in order to make it through the day... I did cone from an iphone 4 though...
Give it a day or so. My initial full charge barely lasted a few hours. My next one, though, lasted 12+ hours with pandora running, and the screen on half the time.
Give it a little time. Battery and phone both need to calibrate their readings. I got ~7 hours with display on today (1.5 hours browsing, 5+ hours movie).
Got my phone a few days ago. Last night I went to bed at 12 and didn't plug in my phone, it had 50% remining. I woke up at 11 am and the phone was dead. I charged it to full, now its reporting 30% at 11 hours later. This is with night mode on and I barely touched the phone today, maybe 20 texts max. The thing using most of the battery is phone idle.
Sent from my MB860 using XDA App
mchimney said:
Got my phone a few days ago. Last night I went to bed at 12 and didn't plug in my phone, it had 50% remining. I woke up at 11 am and the phone was dead. I charged it to full, now its reporting 30% at 11 hours later. This is with night mode on and I barely touched the phone today, maybe 20 texts max. The thing using most of the battery is phone idle.
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
This I too noticed. Uses too much battery when idle. I will charge to 100% and see how it fares while I sleep.
I plan on leaving mine unplugged for the night as well. I wonder why this phone idle is using so much battery though.
Sent from my MB860 using XDA Premium App
1) this is like the 10th battery thread. Many answers can be found in the others.
2) Yes. Your battery needs to calibrate over time.
3) Android users more battery when on because of all the things it syncs with in the background: weather, mail, maps, etc.
4) again due to it's syncing it uses more in the background. To find out what dial *#*#info#*#* and look at the battery stats of what had been running. Look at Other Usage especially.
What size does your battery say on the actual battery? I thought it is advertised with 1930 but mine says 1850.
Sent from my MB860 using XDA App
Im 19 hours unplugged and still at 15%, this phone is a beast
Sent from my MB860 using XDA App
phillycreamboy said:
What size does your battery say on the actual battery? I thought it is advertised with 1930 but mine says 1850.
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
Mine says 1880/1930 mAh (min/typ).
My battery seemed on the lower side of average when I first got it and then it got a lot better after a couple days.
Download Green Power in the Market. Insane improvement. I've used it on my Nexus One (Atrix is coming tomorooow!! for a month now and I've gone 50-60% plus on duration.
I have been running slacker and just web browsing for approx 1.5 hours and am down from 100% to 70%... This is after about four days of nightly charging. I am running green power too with no wifi managment. I have gps etc off. The battery analysis shows that the display is using 80% of the juice. Is any of this normal or is something wrong here?
Sent from my Atrix
The Atrix's battery is the best battery in an Android phone I've used to date. I just left Sprint and thought the Epic 4G's battery was decent. After using this for a few days, I realize that the battery in this thing is AWESOME!
While we were with Sprint, my wife had the EVO 4g and now has the Inspire 4G. NONE of these phone hold a candle to the battery life of the Atrix.
So i left mine unplugged over night again, just tried to turn it on and i got "Modem did not power up (0). Starting RSD protocol support. Battery is too Low to flash.
battery info and network searching
First post here and I'm not a developer but have some feedback for this. Couldn't share without registering first. Won't be a pest.
Had the battery issue with the atrix and called att. The suggested a microcell booster as i was only getting one bar here (H+) at home. The store in San Diego gave me one for free and I installed it and have been off the charger for well over 24 hours now and at 50%. granted I'm not using it much as I have computer at home too. However, just sitting on the table before the booster and it would be at 50% in 4 hours.
Went to the laguna mountains in the middle of nowhere two days ago and it had edge network only. The battery lasted all day and night. The drive out there had H+ and edge in the middle of the cleavland nat forest.
If the atrix is searching for networks it uses battery like crazy.
Also tech support said there was no way to force edge connectivity on the atrix. There has been a code suggested here (I don't recall it now) that is supposed to do it but it is only for international use.
Vangelis13 said:
Download Green Power in the Market. Insane improvement. I've used it on my Nexus One (Atrix is coming tomorooow!! for a month now and I've gone 50-60% plus on duration.
Click to expand...
Click to collapse
Another vote for green power. Worked wonders on my Cappy.
psymont said:
I have been running slacker and just web browsing for approx 1.5 hours and am down from 100% to 70%... This is after about four days of nightly charging. I am running green power too with no wifi managment. I have gps etc off. The battery analysis shows that the display is using 80% of the juice. Is any of this normal or is something wrong here?
Sent from my Atrix
Click to expand...
Click to collapse
I have Green Power on "Managing wifi & mobile netwotk". Does wonders..
Where you browsing on Wlan or Mobile? If your signal isn't good enough it'll obviously eat the battery much faster.
battery life much better than EVO or Epic and EVEN the Droid X. Better than my cousin's iPhone 4 as well. Really great.
I have been using the mobile connection. Havent used gps or wifi. I do only have 2 bars in my house. Can low signal really account for this massive drain. Display still says over 80% use. Now I have been unplugged for 3 hours and I am down to 40%. This cant be right...
Sent from my Atrix
psymont said:
I have been using the mobile connection. Havent used gps or wifi. I do only have 2 bars in my house. Can low signal really account for this massive drain. Display still says over 80% use. Now I have been unplugged for 3 hours and I am down to 40%. This cant be right...
Sent from my Atrix
Click to expand...
Click to collapse
Of course!! Your phone is constantly looking for stronger signal & you're browsing at the same time, that certainly accounts for big portion of your battery usage
I just want to know what I can do to improve my battery on CM7 nightly 32. I'm at 21 hours now and almost dead. Yet I see people get stuff like 2 days and 10 hours... I have tasker and the only profile I have is when the screen goes off it turns mobile data off (not sure If it works so I also use apndroid). I NEVER use wifi, bluetooth, or high brightness. I do however have gps on so in case I lose my phone is lost or stolen I can track it. So there's no way I'm disabling that. I have tried juice defender but figured since it can't effectively disable data for 2.3.3 I saw no point in the app. Any tips?
Sent from my HTC Vision using XDA Premium App
Sorry for the typos, I'm half asleep and there's no editing option in the xda app... atleast add it to the premium version!
Sent from my HTC Vision using XDA Premium App
21 hours on moderate use is great battery life. 12 hours is usually the measuring stick for smartphones, less is bad, greater is good.
Don't know who you saw getting two days plus, but they are either not touching their phone or have an extended battery.
Sent from my T-Mobile G2
Best way to extend battery life is to get an extended or high capacity battery. I just got the Mugen Power pack, not the chunky one, and im in the process of breaking it in.
On my stock battery i was getting about 17hrs of moderate use. Almost no talk but alot of texting, engadget and youtube mostly on wifi with gps always on. That might give you an idea, plus, there are countless battery related threads on here.
Will post back in afew days after my Mugen has cycled afew times.
Sent from my Virtuous Desire Z 1.0.1 using XDA App
I have 4 stock replacement batterys and never plug my phone in to the charger. When my phone is at about 5% i just take one out and pop the next one in and charge them in the wall... I know its not the answer you want but I never have a problem with battery life lol
I would agree that 21 hours is great battery life on this phone. I can get a week of battery life on my phone if I put it in airplane mode and stick it in my desk drawer =P
Not sure how big of an impact the tasker profile has. Unless your screen is off for long periods of time I would think that it might harm the battery life because every time you touch the device, it has to 'search' and connect to the tower again.
You can try running the phone at the stock CPU speed to see if that has an improvement on your battery life. I currently run the same 1017/245 as you with a screen off profile set at 245/245.
For me, as long as I can make it through a day's use, the battery life is fine. With moderate use I can go about 15-18 hours and heavy use I'm at around 12. The car charger in those cases is a life saver.
Bottom line is, battery life really depends on your usage habits. Those people getting days out of their phones likely aren't using them very much...
well i have setcpu set at 806 max and 245 min. screen off is at 245/245 and on powersave governor. other then that its on ondemand. i also have profile set to reduce the CPU based on battery. I have it set to <101% its at 806/245 , <41% its at 768/245 and less then 25 is 368/245. i realize that these are low speed but i hardly ever get lag and i use it for everything, music, video, youtube, internet, twitter, facebook, xda , and a here and there gmail. i guess if im getting exceptional battery life... anyone want some tips?
I find the more variation I put into profiles on setcpu, the worse my battery life gets. Theory - it is constantly watching and making changes based on your CPU needs and battery. So I have mine set to 1113-1113 performance, 245-245 powersave screen off, 245-245 powersave 45degrees+ and for your mobile data, try just having a widget to turn it on and off as you need it. You probably don't need it on everytime you turn on your screen do you?
Sent from my SilverBullet "HTCDesireZ running CM7"
The apndroid widget eventually gets out of sync with on/off with the data... I think its gingerbread. Most apps can't effectively turn the radio off. I hope they make one soon!
Sent from my HTC Vision using XDA Premium App
I find the stock battery to be not that great. I bought the Chichi batteries way back in October (when they were still considered cheap) and theyve been great. I havent really done any new tests since October, but back then (before I had a data plan) I was getting atleast a day and more (from 100% to dead) with moderate usage.
I'd look for a high capacity battery, though they seem to be expensive now.
Kevin001111 said:
The apndroid widget eventually gets out of sync with on/off with the data... I think its gingerbread. Most apps can't effectively turn the radio off. I hope they make one soon!
Sent from my HTC Vision using XDA Premium App
Click to expand...
Click to collapse
The power bar widget that comes with cm7 works perfect for me. Turns onoff Wi-Fi/apn/GPS/brightness/airplanemode
Sent from my SilverBullet "HTCDesireZ running CM7"
I just tested out my battery the other day. I got a day and 13 hours and I was at 19 percent. Wifi is a big battery killer, and brightness is too.
Sent from my HTC Vision using XDA App
Ill post a battery success story...sounds nerdy lol. And i live at my own home with my own family lol.
My mothers g2 is rooted and running cm7 nightly 29 or 30, I installed it last week. I asked her today for the first time how the battery was after a week. She is using an aftermarket 1800mah battery, wifi only at home, she was almost at 32 hours and had 39% battery left!!!!
Not sure of all settings but i put it on 1113mhz, on demand with min 368, autobacklight, wifi only at home, bluetooth is always connected and on. Talk is about 70% of her usage overall. 4 gmail accounts. I did not install set cpu at all. I even stopped it on my phone because it didnt help me one bit.
Not too shabby. I was at 57% with some texting but a lot of gps usage for latitude and wifi always on even when not at home.
sent from the rooty tooty fresh and fruity cm7 nighly powered G2
here is what i get out of a day (battery consumption for specific tasks are mentioned in percentages measured using juiceplotter)
wifi on constantly
display set to 24% brightness
background sync enabled (google, weather 6hrs, whatsapp and facebook once a day)
45 min video (rockplayer no h/w decoding) 15%
1 hr browsing+chat 15%
30 min calls 6%
20 min music+chat 5%
20 min general usage 5%
1 hr flash streaming 15%
24 hrs standby 24% (@ 1% for every hr of standby)
15% battery remaining after 24 hrs i.e. low battery warning.
i disabled the use wireless network option under locations and always on mobile data
and get much better battery life, also i use wifi constantly when available (which is 90% of the time), it is much better for battery life than using 3g or gprs/edge.
pretty amazing battery life IMO i am very happy.
So i have cycled my Mugen 1800mA battery acouple times. on average, i'm able to get about 27hrs of heavy use. Here are some settings as a baseline:
Always on Data
Wifi always on
Auto brightness
1GHz clock speed
massive amounts of text use
massive amounts of screen on time
will report back in afew days time after some more cycles.
On stock my battery use would indicate display as the most used item under battery use.
On CM, however, cell standby and cell idle I think takes up 43 and 40 percent respectively while display only takes up 5 percent... is this normal? I thought on a highly efficient system, display would usually be the most taxing power draw item.
Any input would be greatly appreciated.
P.s. big ups to toast and the CM team for making it happen!
Sent from my PG06100 using XDA Premium App
Same here. Battery lasted longer on sense roms for me
Sent from my PG06100 using Tapatalk
On the hero, sometimes going into and out of airplane mode would kill the ol' TWOS (time without signal) bug.
I will try the airplane mode trick on tomorrows charge and report back!
Sent from my PG06100 using XDA Premium App
lilgrass71 said:
On stock my battery use would indicate display as the most used item under battery use.
On CM, however, cell standby and cell idle I think takes up 43 and 40 percent respectively while display only takes up 5 percent.
Click to expand...
Click to collapse
Similar situation here, though mine shows display at 15%. I seem to have similar overall battery life as I did on stock though.
For the most part, unless you never turn your screen on, display should be number one
Sent from my PG06100 using XDA App
I see the same thing as the OP, however I find that my battery life is improved in CM7. I am running Nightly 35 right now, but it was pretty much the same in RC4.1 as well.
Still testing but looks the same... phone idle and cell signal take up the most but display is now 10%.
On stock I got 48 hours off a charge if I stuck to wifi places. It would be 24 hours in and id have something like 56percent left.
On cm I'm 8 hours into this experiment and have 44 percent left.
Sent from my PG06100 using XDA Premium App
I've also noticed my battery life isnt near as much as it was with a Sense rom. I looked today after reading this post and realised it said I was 59% time without signal when I havnt dropped service once. I wonder why that is... Hopefully they get this figured out as I really liked how CM6 gave my Hero more battery life over stock not the opposite.
My cell standby is right at the top with 37% but my time without a signal is 0%
Ok day two of testing coming to an end... I tried the suggestion of turning on airplane mode this morning then off to see if it made a difference.
Off the charger at 8am
At 15% 10:28 pm
Cell stand by 32%
Phone idle 25%
Wifi fall in the middle here somewhere
Display 5%
Still not the kind of batterylife I got on stock. I just goto school and home these days pretty much same routine everyday and constantly on wifi.
I'm gonna try to set the clockspeed down from default of 1ghz in cm to 800 to mimick stock tomorrow and see if that makes a difference. Then maybe try a new kernal like x99 later on in the week.
Will report back!
Sent from my PG06100 using XDA Premium App
lilgrass71 said:
Ok day two of testing coming to an end... I tried the suggestion of turning on airplane mode this morning then off to see if it made a difference.
Off the charger at 8am
At 15% 10:28 pm
Cell stand by 32%
Phone idle 25%
Wifi fall in the middle here somewhere
Display 5%
Still not the kind of batterylife I got on stock. I just goto school and home these days pretty much same routine everyday and constantly on wifi.
I'm gonna try to set the clockspeed down from default of 1ghz in cm to 800 to mimick stock tomorrow and see if that makes a difference. Then maybe try a new kernal like x99 later on in the week.
Will report back!
Sent from my PG06100 using XDA Premium App
Click to expand...
Click to collapse
I'm getting better battery life, by quite a bit. But I just noticed I've been running at 800MHz under the "conservative" governor, so that explains part of it
how's the responsiveness on the conservative govener? Any lockscreen lags or anything?
Sent from my PG06100 using XDA Premium App
lilgrass71 said:
how's the responsiveness on the conservative govener? Any lockscreen lags or anything?
Sent from my PG06100 using XDA Premium App
Click to expand...
Click to collapse
I haven't noticed much lag if any. Except occasionally when opening some apps, not enough that it ever really bothers me.
I switched it to run at 1209 MHz, and I can just about watch the battery percentage drop, so there's a definite difference there
hey there
basically, last night i:
1)wiped battery stats
2)discharged till phone shuts off
3)turned phone on again so it turns off again
4)went to sleep with it charging
5)woke up 9 hours later, on 100%
so if its fully charged, battery ETA is only giving it 7 hours and 44 minutes estimated time, WITHOUT WIFI, GPS OR MOBILE DATA, AND 25% BRIGHTNESS USING 'BRIGHTNESS PROFILES' APP. isnt this like.... rubbish? this is my setup
stock battery
cyanogenmod 7.0.3 w/ Eugene's Smartass overclock kernel V9
*******Setcpu profiles: default 245/1228 smartass
Screen Off 192/368 conservative (100 priority)
Temp >38.5C 245/806 ondemand (priority 80)
Charging 368/1459 ondemand (priority 78)
battery <10% 245/368 ondemand (priority 71)
battery 15% 245/768 ondemand (priority 60)*********
ADW launcher w/honeycomb theme
-no widgets!-
i dont want to buy one of those bulky batteries, as it wont fit in my school blazer. the question is, how do i extend my battery?
Thanks
Sounds like a duff battery. I get about 20 hours with everything on on stock rom.
Sent from my HTC Vision using Tapatalk
oh okay thanks, where could i buy a decent battery, adding no bulk but not too expensive?
I'm wondering the same thing... the Desire Z only comes with a 1300mAh battery... My previous phone had a more powerfull battery (2100mAh) and that was an older model WM6 smartphone (which was rubbish on power savings) and it would outlast the desire Z... Even after two years of extensive use, the old phone's battery is better then this phones brand new battery
I've been unable to find any official HTC batteries for the Desire Z which pack more juice...
At the OP. What is your signal strength like? Mine is rubbish at work as I work in a converted barn and that makes a big difference to the battery life.
Sent from my HTC Vision using XDA App
at home i ALWAYS have 3/4 bars out of 4
btw i am also using JuiceDefender, if that would make a difference :L...
since the OP, ive been on facebook for about 30-40 mins, already 82% battery.....
Have a look through the accessories section. Lots of threads about replacement batteries.
Sent from my 'SilverBullet' HTCDesireZ running CM7
I am in the process of 'breaking in' a new 1800 MuganPower battery. Fits perfectly with no mods needed.
It should take a few more charges etc to settle down, so things should theoretically improve.
I pulled the plug off charge 6.5 hours ago.
I have it set to use wifi when at home, and 3g for the phone connection (I have a 3G femtocell at home).
When I leave my home area, it switches off 3g and wifi and drops to 2g.
I have made a couple of 2 minute calls, checked my emails and twitter, and was out of the house for say 1.5 hours earlier.
I have had a couple of texts to which i replied.
I am on 95% charge now, and pretty pleased with that.
I've got the same mugen battery, and get through a full day easily no matter what I do. Screen full bright, wifi always on, some internet, games, gps.... etc. Only 7 hours of battery to me sounds terrible.
since my last post, i havent touched the phone at all, and its got 66% charge -__- i seriously need a better battery, may buy the mugen, would you say they are worth it?
xT4Z1N4TRx said:
since my last post, i havent touched the phone at all, and its got 66% charge -__- i seriously need a better battery, may buy the mugen, would you say they are worth it?
Click to expand...
Click to collapse
Have you made sure there are no apps or services that are using to much?
Sent from my 'SilverBullet' HTCDesireZ running CM7
Are you using the Google News and Weather widget? I still don't know why, but it was murdering my battery. Soon as I removed the widget, battery life shot back up.
Sent from my HTC Vision using XDA Premium App
nope, no widgets except the built in analogue clock.
the battery usage is used by mobile standby, wifi, display etc. no apps....
xT4Z1N4TRx said:
nope, no widgets except the built in analogue clock.
the battery usage is used by mobile standby, wifi, display etc. no apps....
Click to expand...
Click to collapse
What percentage per section(standby, display) is being used?
Sent from my 'SilverBullet' HTCDesireZ running CM7
mobile standby 33%
wifi 28%
phone idle 28%
display 5%
im surprised its been 10h 15m and im still on 58%
the battery seems okay when not touching the phone, as i have only checked facebook for 2 minutes, and sent around 10 texts (been playing football)
looks like imma turn off wifi when not using it from now!
When I first got my Desire Z when it first came out I was pretty disappointed in the battery life. I tried programs like juice defender and minimized every possible battery sucking option I could find. I could maybe get 12 hours of use out of it so I bought a 1800mAh MuganPower battery which gave me maybe 15 hours instead. Pretty poor I thought but what more could I do?
A couple of months ago I finally did a factory reset after encountering a lot of frustrating little bugs, some of which had been around since the phone was new. Since then not only has my phone worked a lot better and faster, but battery life is MUCH improved. My phone now consistently lasts 24 - 30 hours with the same usage or more than I was using it before. So obviously buggy software can make a huge impact on battery life and it's not something you are going to be able to easily discern as to what program(s) are causing the problem.
Hmmm im not sure then..
Sent from my HTC Vision using XDA App
Okay, played a bit of speedx 3D, heavy texting and facebook/gochat, still on 31%. Battery seems ok, still going to invest in a better one though, as using the phone for games or internet heavily drains the battery, whereas standby seems to be quite good, but need to turn off wifi. I will see how it fairs tomorrow, and post a picture.
Sent from my HTC Desire Z using XDA App
28% for wifi seems really high. I always have wifi on and it only takes up 6%.
Hey can someone please tell me in which rom the battery lasts longer???
Sent from my G2 using XDA
PLEASE search. You have 253 posts, you should know by now this is asked every single day
I'm on stock 2.3.4 rooted, and I just put my phone on the charger with 14 hours since last charge @ 56% battery. It was light to moderate use, will let you know tomorrow if it was a fluke. Sundays are light days, but Monday will tell the truth.
Sent from my T-Mobile G2 using XDA Premium App
21productionz said:
I'm on stock 2.3.4 rooted, and I just put my phone on the charger with 14 hours since last charge @ 56% battery. It was light to moderate use, will let you know tomorrow if it was a fluke. Sundays are light days, but Monday will tell the truth.
Sent from my T-Mobile G2 using XDA Premium App
Click to expand...
Click to collapse
That's what I'm using at the moment but I also what something more customizable rom
I was going to try cyanogenmod 7 but I don't know how is the battery in that rom!
Sent from my G2 using XDA
OMG I just flashed cm7 a while ago and the battery life is amazing!!!!!
I'm on xda for about five minutes and it hasn't changed from 100
Amazing!!!
Sent from my G2 via XDA running Cyanogenmod 7
Use coredroid 1.0 it has fantastic battery life. Its a sense Rom but it has the best battery life I've used on any Rom.
Sent from my Synergy Rom using XDA App
Battery life today was average. I got about 9 hours out of it. I had left wifi on though will test again tomorrow.
Sent from my T-Mobile G2 using XDA Premium App
my battery conservation method is simple:
- Turn on wifi and leave it on
- Set the phone to GSM only.
This almost doubled my battery life using stock HTC gingerbread.
Fludizz said:
my battery conservation method is simple:
- Turn on wifi and leave it on
- Set the phone to GSM only.
This almost doubled my battery life using stock HTC gingerbread.
Click to expand...
Click to collapse
Why would turning on wifi improve battery life?
The idle time on Unity is very good. I'm somewhere around day 2-3/4and just now getting to 50%
However when you're using it the battery tends to die pretty quick.
Pyromod! its amazing, I get about two days battery life.
I never worry anymore, If i'm going out of the house around 5 PM with 20 percent battery life, I'm good for the rest of the night and morning.
astriaos said:
The idle time on Unity is very good. I'm somewhere around day 2-3/4and just now getting to 50%
However when you're using it the battery tends to die pretty quick.
Click to expand...
Click to collapse
As is true with ANY rom you use lol.
Right now I'm using cm 7 and when its charged to 100 it stays in 100 for a long time than it drains pretty quick
Sent from my G2 via transperent XDA app running Cyanogenmod 7.1
Shadow_Android said:
Right now I'm using cm 7 and when its charged to 100 it stays in 100 for a long time than it drains pretty quick
Sent from my G2 via transperent XDA app running Cyanogenmod 7.1
Click to expand...
Click to collapse
That's how it is. The firmware interacts with the battery in a way that any % over 90% is considered a full charge, so sometimes this comes away with the phone sitting at 100% for a long time (up to like 2 hours for me if I don't use the phone much), then draining normally. It doesn't drain fast, it just drains fast compared to the battery sitting at 100%.
martonikaj said:
As is true with ANY rom you use lol.
Click to expand...
Click to collapse
Not true. CM6 had a drain rate of 3%/h on idle with no connections and me popping it on once or twice an hour to get a text.
Cm7 was around the same. All stock clock with downclock with the screen off to around 500mhz.
Unity's idle rate is only about 1%/3-4 hours. It's insane.
astriaos said:
Not true. CM6 had a drain rate of 3%/h on idle with no connections and me popping it on once or twice an hour to get a text.
Cm7 was around the same. All stock clock with downclock with the screen off to around 500mhz.
Unity's idle rate is only about 1%/3-4 hours. It's insane.
Click to expand...
Click to collapse
No, I mean you clearly are going to drain fast when using a phone compared to idle.
And any ROM with a proper kernel can be undervolted / underclocked with apps to disable data in order to drain less battery in idle.
Shadow_Android said:
OMG I just flashed cm7 a while ago and the battery life is amazing!!!!!
I'm on xda for about five minutes and it hasn't changed from 100
Amazing!!!
Click to expand...
Click to collapse
I can't tell if you're kidding or not, but the phones and ROMs I've seen all exhibit this behaviour. The OS will report the battery at 100% for a long time, as if the battery has more capacity than the OS knows about. A more accurate estimate would be to wait until you're at 99%, and then see how fast the meter drops. Better yet would be to use something like Current Widget or Battery Monitor Widget to record real-time current draw, then calculate how much energy has been consumed.
I wish there was a way to calibrate what "100%" actually means, but I don't think that is possible, since it is a hardware limitation.