Database Users

Battery does not charge properly when D2 is off

Hi,
I noticed the following problem on my Diamond 2:
If I turn off the phone for night charge it never shows green in the morning.
The only way to see that amazing green light is to charge the phone whent it is turned on.
Of course I applied the latest hotfix - no use for the off mode charging. And of course I wrote to htc - will not waste your time repeating their suggestions.
And I am not happy with my phone battery life - it hardly endures one working day - lets say - 10 hours...
ROM - Official, yet.

orlean said:
Hi,
I noticed the following problem on my Diamond 2:
If I turn off the phone for night charge it never shows green in the morning.
The only way to see that amazing green light is to charge the phone whent it is turned on.
Of course I applied the latest hotfix - no use for the off mode charging. And of course I wrote to htc - will not waste your time repeating their suggestions.
And I am not happy with my phone battery life - it hardly endures one working day - lets say - 10 hours...
ROM - Official, yet.
Click to expand...
Click to collapse
I never turn my phone off so the green light problem never arises. However I will check and see if occurs.
As for battery life, you will need to give it a few weeks of use before you see maximum battery life.
Make sure you don't continually discharge the battery (better still keep it charging whenever you can) and you should see improvement over time.
Unlocking and replaceing the ROM can also have a significant effect on battery performance as does the Radio version in use. That's going to need some work on your part but the improvements are there to be had.
Some apps that are in common use are also power hungry and can cause a significant drain on power.
And if you install your apps to mem card then again that uses more power than installs to phone storage memory.
You can also turn off any unused background apps and processes.
Only turn on Bluetooth and WiFi when needed.
All these things help.
Personally I carry a spare standard battery with me at all times and strangely since I bought it I haven't needed to us it. The placebo battery effect?

Thanks for the answer.
About the battery usage conseption:
You suggest that I plug my phone each time when possible?
I thought that as the battery has XX recharges according to the specifications it is not good to charge each time whenever you got AC or USB access
I started to follow your recommendation anyway.
For example however - my laptop is never (when possible) with battery in it. I use the battery only when necessary, becasue in the user manual is written that has 300 cycles of recharging. And I always wait until completely discharged before charging. That is how I began treating the Dimond, too.

orlean said:
Thanks for the answer.
About the battery usage conseption:
You suggest that I plug my phone each time when possible?
I thought that as the battery has XX recharges according to the specifications it is not good to charge each time whenever you got AC or USB access
I started to follow your recommendation anyway.
For example however - my laptop is never (when possible) with battery in it. I use the battery only when necessary, becasue in the user manual is written that has 300 cycles of recharging. And I always wait until completely discharged before charging. That is how I began treating the Dimond, too.
Click to expand...
Click to collapse
With Lithium Ion batteries the "quoted" numbers of "rechage" is is an approximate equivalent to give some idea of life expectacy.
It's a hangover from the old NiCad battery days and is not really very helpful when applied to Lithium Ion usage.
The most important aspect of LIon is it's ability to hold it's voltge at max current for longer than other technology. It does this best when well charged and maintained at near max as possible as often as possible. The downside is it's life expectancy which does deteriorate over time.
If you require max daily useage then max charging whenever possible will give you this and you will have to accept that the battery will at some point loose it's charge retaining capabilities and will have to be replaced.
For most of us that's the most important thing.

This is not a battery issue, I believe that this is a software one.
I noticed this morning, having left my phone on charge, and 'off', all night, that the indicator light was still red. When I switched on the phone, it showed only 80% charged.
Having seen this before, I carried out a soft reset, the battery indicator then showed fully charged.
So the battery is charging fully, but the battery charge indicator is showing less than that.

Phone doesn't detect battery level correctly

One day i was found that my magic isn't charged fully - charging level is stuck at same % (say 66%) although charger was plugged in during all the night.
Beginning from this moment the phone doesn't detect battery level correctly and don't charging up to 100% nor when it is on nor when it is off. For example it can show me one value but after reboot shows differently another value (for example was 46% but after rebooting is 8%, or in some cases battery level can be even more, than before i performing reboot - say was 22% but after rebooting is 78%).
I'd tried wipe, erase system partition and re-flash rom, flash another roms - all without any luck. So i decided that my battery is died. But when i got a brand new battery (from another just bought magic), i got the same issue as in case of my battery. Also another magic works perfect with my battery.
It appears that problem in the phone itself? Anybody got the same issue?

intruders said:
One day i was found that my magic isn't charged fully - charging level is stuck at same % (say 66%) although charger was plugged in during all the night.
Beginning from this moment the phone doesn't detect battery level correctly and don't charging up to 100% nor when it is on nor when it is off. For example it can show me one value but after reboot shows differently another value (for example was 46% but after rebooting is 8%, or in some cases battery level can be even more, than before i performing reboot - say was 22% but after rebooting is 78%).
I'd tried wipe, erase system partition and re-flash rom, flash another roms - all without any luck. So i decided that my battery is died. But when i got a brand new battery (from another just bought magic), i got the same issue as in case of my battery. Also another magic works perfect with my battery.
It appears that problem in the phone itself? Anybody got the same issue?
Click to expand...
Click to collapse
Me too....

did you try wiping battery stats (from recovery)?
I'm not sure if this is supposed to done from a full or empty battery though

adavis159 said:
did you try wiping battery stats (from recovery)?
I'm not sure if this is supposed to done from a full or empty battery though
Click to expand...
Click to collapse
That is what i waa going to say, but I'm sure it doesnt matter what level your battery is when you do this aslong as it doesnt die during the process. Anyways you could have a faulty phone reading the levels wrong if changing roms and doing this doesnt work.

luminiz said:
Me too....
Click to expand...
Click to collapse
I found several similar cases on this forum but no one answer that actually explain what and why it happens.
In my case i got this issue after performing battery calibration procedure. Maybe is just coincidence, i don't know.
adavis159 said:
did you try wiping battery stats (from recovery)?
Click to expand...
Click to collapse
Yep, of course i tried do this from recovery and manually deleting battery stats file - both with no luck. Also during rom flashing battery stats also was erased.

Tried un-root my phone by flashing Android 1.5 from MT3G - issue isn't disappear. After a week maximum detected battery level is falling down and i can't get even 40% of charge. Now, two weeks later, maximum charging level is only few %. Damn it

[Q] battery driver issues

i currently own 3 units of s200 and have flashed them with cooked roms. however i have discovered a very disturbing fact about almost all the ccoked roms here - the battery driver is screwed up. i ended up changing 2 of the 3 phones battery because it only charges till 55% and 74% respectively, the 3rd phone charges to 95% and is stuck there
2 of the devices came from a same build september 2009 and the third phone is from jan 2010( i guess because it only says on the service receipt).
am i the only one who is experiencing this or there are more of you who had been infected by this bug?
i finally flashed all three phones with 3.03c official for malaysia/singapore
one more thing i noticed, all the roms effected were using somekind of tsowens taskbar icon as well as using non acer dialer.

bevoc said:
i currently own 3 units of s200 and have flashed them with cooked roms. however i have discovered a very disturbing fact about almost all the ccoked roms here - the battery driver is screwed up. i ended up changing 2 of the 3 phones battery because it only charges till 55% and 74% respectively, the 3rd phone charges to 95% and is stuck there
2 of the devices came from a same build september 2009 and the third phone is from jan 2010( i guess because it only says on the service receipt).
am i the only one who is experiencing this or there are more of you who had been infected by this bug?
i finally flashed all three phones with 3.03c official for malaysia/singapore
one more thing i noticed, all the roms effected were using somekind of tsowens taskbar icon as well as using non acer dialer.
Click to expand...
Click to collapse
Which Custom ROM did you used?

used a couple of kubino's
arto's latest
one of yours. (if i remembered correctly... i have to check my download folder)
additional info, the battery will get stuck on the last maximum charge before flashing... lets just say i have 55% batt and i flashed a custom rom... after flash, the battery will not charge more than that.
(it is safe to say that you must flash the phone in 100% batt... my bad, i flashed as soon as the charge goes over 50%... pardon my obsessive flashing disorder)
i even have left the phones connected to the charger overnight and in the morning it is still displaying the same level of charge (+ over heating = almost dead battery = buying 2 mugen 1500mAh's)... at first i thought it was a minor battery update lag bug, but the phones will die within 5 to 6 hours. sometimes they will be switched off for no apparent reason
i seriously want a 6.5.x rom running on all 3 devices because of the touch friendliness but the fact that it gives me battery errors turns me off.
just hope i can use custom roms like i used to on my previous htc devices.

bevoc said:
used a couple of kubino's
arto's latest
one of yours. (if i remembered correctly... i have to check my download folder)
additional info, the battery will get stuck on the last maximum charge before flashing... lets just say i have 55% batt and i flashed a custom rom... after flash, the battery will not charge more than that.
(it is safe to say that you must flash the phone in 100% batt... my bad, i flashed as soon as the charge goes over 50%... pardon my obsessive flashing disorder)
i even have left the phones connected to the charger overnight and in the morning it is still displaying the same level of charge (+ over heating = almost dead battery = buying 2 mugen 1500mAh's)... at first i thought it was a minor battery update lag bug, but the phones will die within 5 to 6 hours. sometimes they will be switched off for no apparent reason
i seriously want a 6.5.x rom running on all 3 devices because of the touch friendliness but the fact that it gives me battery errors turns me off.
just hope i can use custom roms like i used to on my previous htc devices.
Click to expand...
Click to collapse
Well your battery is broken.
I have already flashed with only 30 % of battery and nothing happened. Have also flashed my Phone over 200 Times in the last 6 months, in the last 3 days over 50 times - and the battery is still functioning without any problems.
On my Sencity ROM it holds for 2 days without loading.

thanx for feedback
i think i'll experiment on a few more roms. as far as my devices go, the problem was rom specific where flashing the stock rom eliminated the issue.

bevoc said:
used a couple of kubino's
arto's latest
one of yours. (if i remembered correctly... i have to check my download folder)
additional info, the battery will get stuck on the last maximum charge before flashing... lets just say i have 55% batt and i flashed a custom rom... after flash, the battery will not charge more than that.
(it is safe to say that you must flash the phone in 100% batt... my bad, i flashed as soon as the charge goes over 50%... pardon my obsessive flashing disorder)
i even have left the phones connected to the charger overnight and in the morning it is still displaying the same level of charge (+ over heating = almost dead battery = buying 2 mugen 1500mAh's)... at first i thought it was a minor battery update lag bug, but the phones will die within 5 to 6 hours. sometimes they will be switched off for no apparent reason
i seriously want a 6.5.x rom running on all 3 devices because of the touch friendliness but the fact that it gives me battery errors turns me off.
just hope i can use custom roms like i used to on my previous htc devices.
Click to expand...
Click to collapse
In my opinion, it is the issue of your battery, not the driver. If you use the original battery, you will find it works fine! The high capacity battery maybe need the special charger. Maybe just because the phone can not recongnize the battery's capacity.

By the way, I found that the battery does not work well with the new style roms. The battery always exhausts faster than the old style rom. For instance, the rom 23140 exhausts battery faster than rom 21057. My battery can stand by for neary 4 days with rom 21057, more than 3 days with rom 21895 or 219xx. But it can only stand by for about 2days with rom 23140 or 28xxx.

well the drivers are just ****ty
i searched thru the forums to find out what is missing... and i find then post that says new roms = new base drivers = recalibrate battery
guess what, i recalibrated my battery even the "broken" ones. now all are working perfectly.
the catch
1. recalibrate all batteries
2. delete any battery icons / taskbar enhancement (can be reinstalled after all this)
3. use any regedit find string "state" without the quotes. find "battery", and change all values to 0
4. charge batteries without turning on device, wait till light is green.
5. turn on device, make sure battery % is showing 100%
6. take off batteries, wait 10 seconds, reinsert battery
7. push vol+ and vol- and press power button (hard reset device)
8. voila... perfect charging battery
tested for 1 day already. the broken battery were not broken after all, its the battery driver. it will not make changes or detect changes from the battery because its from a different base driver (even if the drivers were said to come from official 3.03c bla bla bla.
sorry mates.. its not my batteries. if just one device its understandable. its from 3 seperate devices (one is actually my girlfriend's) so i made a conclusion that even roms cooked from same base will actually have a flaw that can kill your devices......... slowly
bottom note - only flash your phone at 100% batt and reflash stock rom in between flashes.

@ sinocreate
BTW the mugens were bought to replace 2 ORIGINAL batteries that had been damaged by the roms. do read the post carefully.
i think you are competent enough to understand my simple english.

bevoc said:
i searched thru the forums to find out what is missing... and i find then post that says new roms = new base drivers = recalibrate battery
guess what, i recalibrated my battery even the "broken" ones. now all are working perfectly.
the catch
1. recalibrate all batteries
2. delete any battery icons / taskbar enhancement (can be reinstalled after all this)
3. use any regedit find string "state" without the quotes. find "battery", and change all values to 0
4. charge batteries without turning on device, wait till light is green.
5. turn on device, make sure battery % is showing 100%
6. take off batteries, wait 10 seconds, reinsert battery
7. push vol+ and vol- and press power button (hard reset device)
8. voila... perfect charging battery
tested for 1 day already. the broken battery were not broken after all, its the battery driver. it will not make changes or detect changes from the battery because its from a different base driver (even if the drivers were said to come from official 3.03c bla bla bla.
sorry mates.. its not my batteries. if just one device its understandable. its from 3 seperate devices (one is actually my girlfriend's) so i made a conclusion that even roms cooked from same base will actually have a flaw that can kill your devices......... slowly
bottom note - only flash your phone at 100% batt and reflash stock rom in between flashes.
Click to expand...
Click to collapse
In your step1:recalibrate all batteries. I just want to know how to recalibrate the battery?
I remember that the system can recalibrate the battery automatically from maybe WM6.1 or newer core...

recalibrate
set backlight to maximum
turn off powersaving
let the device run until it dies by itself
take out battery for 10 seconds
put it back in
turn on device
if device turns on - let it alone until it dies again
if the battery have fully discharge, hold the power button red led will blink
once you know battery is fully empty, you can
a. charge using the original acer desktop charger
b. charge using a phone with stock rom
c. charge using your phone (make sure phone is off until fully charge)
wait till green light. then you're done.
the premise of this.
1. every battery has a chip that tells the phone and power management system that either it is empty or charged (voltage level, temperature etc)
2. Flashing custom roms abrupts this transaction of info from battery to power management causing innacurate reading.
3. new base driver will detect different battery level, some are ok and some are not, unfortunately in my case it has a serious error.
4. recalibrating is just a remedy to make sure that both phone and battery starts reporting on power drain from 100 - 0
one more thing, if you think your phone is affected, charge at a minimum of 8 hours (sometime the green light will come out earlier due to the fact that it is not accurately reporting the battery charge)

bevoc said:
i searched thru the forums to find out what is missing... and i find then post that says new roms = new base drivers = recalibrate battery
tested for 1 day already. the broken battery were not broken after all, its the battery driver. it will not make changes or detect changes from the battery because its from a different base driver (even if the drivers were said to come from official 3.03c bla bla bla.
sorry mates.. its not my batteries. if just one device its understandable. its from 3 seperate devices (one is actually my girlfriend's) so i made a conclusion that even roms cooked from same base will actually have a flaw that can kill your devices......... slowly
bottom note - only flash your phone at 100% batt and reflash stock rom in between flashes.
Click to expand...
Click to collapse
Where did you find that? Because that is for the HTC Devices. The ROM's for the HTC's use different battery drivers.
For our Acer device there are drivers 2.002 and 3.003. None of the kitchen Chefs use the old battery drivers or replace something in the OEM package.
So, if I say to you that my ROM has 3.003 drivers then be shore - there is no difference between my ROM and the official Acer one.

sinocreate said:
In your step1:recalibrate all batteries. I just want to know how to recalibrate the battery?
I remember that the system can recalibrate the battery automatically from maybe WM6.1 or newer core...
Click to expand...
Click to collapse
well these roms are not recalibrating automatically as they should

brainmaster said:
Where did you find that? Because that is for the HTC Devices. The ROM's for the HTC's use different battery drivers.
For our Acer device there are drivers 2.002 and 3.003. None of the kitchen Chefs use the old battery drivers or replace something in the OEM package.
So, if I say to you that my ROM has 3.003 drivers then be shore - there is no difference between my ROM and the official Acer one.
Click to expand...
Click to collapse
yes there is a difference. new builds brings new improvements/change towards many features including power management. i am sure you have been around long enough to have experience improvement in kernel and memory management as well as power management.
driver 303c was specifically made for the old builds. not 6.5.3. so i guess the best way to be sure about the battery issue is to recalibrate. it is safe and it is free.

bevoc said:
yes there is a difference. new builds brings new improvements/change towards many features including power management. i am sure you have been around long enough to have experience improvement in kernel and memory management as well as power management.
driver 303c was specifically made for the old builds. not 6.5.3. so i guess the best way to be sure about the battery issue is to recalibrate. it is safe and it is free.
Click to expand...
Click to collapse
Yes, you are right. If the battery isn't functioning as it should - then it is best to recalibrate the battery.
But normally this won't happen if you first full charge the battery when you buy a phone and then turn it on.

thanks
brainmaster, nice rom by the way, thanks for cooking. i'm using one of your rom now, i recalibrate and getting a good battery life good battery life.
next order of business - waiting for someone to compile a linux kernel!!
hahaha

bevoc said:
set backlight to maximum
turn off powersaving
let the device run until it dies by itself
take out battery for 10 seconds
put it back in
turn on device
if device turns on - let it alone until it dies again
if the battery have fully discharge, hold the power button red led will blink
once you know battery is fully empty, you can
a. charge using the original acer desktop charger
b. charge using a phone with stock rom
c. charge using your phone (make sure phone is off until fully charge)
wait till green light. then you're done.
the premise of this.
1. every battery has a chip that tells the phone and power management system that either it is empty or charged (voltage level, temperature etc)
2. Flashing custom roms abrupts this transaction of info from battery to power management causing innacurate reading.
3. new base driver will detect different battery level, some are ok and some are not, unfortunately in my case it has a serious error.
4. recalibrating is just a remedy to make sure that both phone and battery starts reporting on power drain from 100 - 0
one more thing, if you think your phone is affected, charge at a minimum of 8 hours (sometime the green light will come out earlier due to the fact that it is not accurately reporting the battery charge)
Click to expand...
Click to collapse
I m testing this method right now,then i ll report results.I m in Arto 3.9.2 rom now and battery with a good use last to me one day and half

I ve tried with no success...Nothing changed here

@axel85
what are you trying to change?
READ THE THREAD CAREFULLY.
DON"T JUMP INTO CONCLUSIONS.

[HOW TO] Fix Battery Life: Ultimate guide (calibrate + post#2 -FIXES) UPDATED 25Aug

Standart disclaimer: I am not responsible if you break things by following this guide, though I will be genuinely surprised if you do.
Credits: This fix is a combination of battery management techniques discussed in the Atrix forums + a technique that I originally found in a Milestone forum (I didn't invent it, but I am too lazy to search who originally posted it ).
This worked in fixing the problem for me (the same problem that I see many others are writing about on the forums), but I can't guarantee it will work for you.
Who should use this? (aka your battery problem symptoms are
1. Battery life on 2.3.4 is significantly worse for you than before.
2. Battery stats are jumping and showing inconsistent information.
3. Your phone loses 30%-60% just by sitting there overnight.
4. Phone idle draining 30%-60% of battery just by sitting there overnight.
5. After flashing a couple of roms, your battery stats got messed up and the phone thinks it's at 100% charge while it's not.
I personally started having battery problems after flashing a couple of roms, applying 1% battery mod and despite flashing jug6ernaut's CWM battery fix.
When I went to bed with a 100% charge, I would wake up to a 50% charge, with Phone Idle process showing up as massacring the battery. The steps below successfully fixed the problem for me.
Prerequisites:
1. Atrix on one of the rooted 2.3.4 roms (ideally,- deodexed and with unlocked CWM)
2. Wall Charger
3. jug6ernaut's CWM battery fix (put it on your SD card you will need it later!) I have also attached it to this post.
4. Battery Calibration app from the market
5. Watchdog Lite or Full from the market
Instructions:
It's best to complete this procedure in the evening before going to bed, so you can leave it at 100% overnight and check in the morning if the drainage issue is fixed!!!
The whole procedure along with recalibration might take up to 5-6 hours!
1. Take the case off your Atrix (one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market
3. Plug in your Atrix to charge while it's on, wait till it gets to a 100%
4. When the charge is 100%, open the BatteryCalibration app and lookup what the charge is in MV while at 100%. (Explanatory pic, needed number circled in red). Write it down.
My Atrix was showing ~3400MV while at 100%, which is definitely not the maximum capacity.
5. Discharge your Atrix completely until it shuts off.
A good way of doing this quickly is by turning on wifi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100%
7. When it's at 100%, without unplugging it from the wall charger, take off the battery cover, and take the battery out.
Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%.
Mine showed only 5%. Back when I used a Milestone, it usually showed 60% after doing this.
10. Let it sit there charging for 2-3 hours.
My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours, turn the phone on while holding the volume down button and get into CWM.
Do not disconnect it from the charger still!
12. Install jug6ernaut's CWM battery fix (even if you had it installed before), do not reboot yet.
Do not disconnect it from the charger still!
13. Wipe battery stats in CWM, reboot.
Do not disconnect it from the charger still!
14. When the phone turns on, go into BatteryCalibration app again and look up your MV numbers
- if you were like me, they should be significantly higher than before. After this whole process I had 4200MV at 100%, comparing to 3400MV before calibration.
Do not disconnect it from the charger still!
15. Before going to sleep - Install Watchdog from the market. Go into it's preferences, set CPU threshhold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well.
Do not disconnect it from the charger still!
16. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger.
Go to bed, let your phone sleep too.
17. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more.
I went to bed with 98% and woke up to 94%. So, I consider this mission a success.
(Your general battery capacity should have increased, even if something still was draining the battery, you will be able to find the infringing process in WatchDog with the settings we've set up in step 15 )
That's all folks! Please report your success / lack of such here. Also, feel free to ask questions, and I along with other users with answer them according to our ability.
I will later add a section on "good practices for battery usage" with tips and tricks.
Cheers!
Attached are screenshots of my results after calibration: This was under moderate usage. Pretty damn good if you ask me.

Post-calibration methods of improving Battery Life
Updated: Post#2 will explain how to solve battery drainage problems when recalibration wasn't enough. It will also explain how battery reporting works, common practices, tips, tricks, etc.
Battery Tips / Tricks / Common Practices
Important things to know:
1. It's important to understand how battery indicator on Android works and how Android manages / reports your battery life. Please read this article:
Your Smartphone’s Battery Gauge is Lying to You (and it’s not such a bad thing)
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/
2. Li-ion batteries used in modern smartphones don't have "charge memory". Partial charges won't hurt the battery (e.g. charging from 60% to 80% or from 10% to 50% etc). Feel free to give your phone small charges whenever you have time and need the phone to last longer.
3. Smartphone batteries don't like to be completely discharged or to be kept at 100% capacity for extended periods of time (this actually damages batteries over time). But worry not, the battery software prevents this from happening for you. That's why some of your phones never get to 100% or drop from 100% to 90% minutes after you disconnct the phone from a charger.
4. All batteries gradually lose a small percentage of their capacity after a certain amount of charge cycles. It's a natural part of life. It's always nice to have a spare battery or to purchase a replacement when your current battery isn't to the task anymore.
5. Don't pay much attention to the battery %, just use your phones. I know it's very tempting to track your battery usage every 15 minutes and try to find problems. Been there myself. Thing is, if you do this, you might start thinking you have problems, when you don't have any.
Bottom line - just try to use your phone and not mess with the battery unless problems become really apparent.
------------------------------------------------------------------------------
Other proven ways to improve Battery Life
If you have re-calibrated to a full capacity (4200mv) but your battery still drains terribly - follow these steps to pin point the problem.
1. Find which app / process is draining the battery.
If you get lucky, the infringing app will show up directly under the stock "Battery Usage" statistics. However, in most cases "Battery Usage" isn't very informative. Most people report that they only see "Phone Idle" consuming most of the battery without much insight into the details.
Things to do:
- install Watchdog, go to preferences, set CPU threshhold to 20% (or even lower if it's not enough), check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20%(or even lower if it's not enough) as well. Run it for a couple of days.
If you start getting frequent Watchdog notifications about a certain app breaching the threshold - uninstall it, find an alternative.
- install BetterBatteryStats from here -
http://forum.xda-developers.com/showthread.php?t=1179809 run it for a couple of days and monitor apps / processes that are using up more wakelocks than they should.
Once you find the infringing app - uninstall it, if it's a process - find out if it's safe to stop / freeze before doing anything.
2. Freeze bloatware aka "stop the problem before it becomes a problem."
Unless you are running CM7, your rom is based on stock 2.3.4 and still has blur in it. Blur apps and processes might be running without you even using them and sucking out precious batter life while they are at it.
Things to do:
- Get TitaniumBackup, freeze all bloatware that is mentioned as "safe" in this thread -
http://forum.xda-developers.com/showthread.php?t=1182663
Use your phone for a couple of days afterwards and watch for improvements.
If these software tweaks aren't enough, the problem might be with your system setup. Go through these steps which should hopefully fix your setup in favor of awesome battery life:
3. Flash a custom kernel, set up battery saving profiles.
Many people have reported success with this step. Custom kernels are not just for overclocking. A custom kernel with smart profiles will definitely give definitely extend your phones operating life during the day.
Things to do:
- Get a custom kernel., the popular choice on here seems to be faux'es kernel, so I recommend it -
http://forum.xda-developers.com/showthread.php?t=1156040
Get one of the battery saving SetCpu profiles along with it. Basically, a good battery saving profile looks something like this:
- absolute minimum CPU clock with screen off (something like 275 Mhz)
- lowering CPU clock with temperature > 50C (something like ~800Mhz)
- lowering CPU clock when battery < 30% (something like ~800Mhz)
Many people reported success in using such profile for lowering "Phone Idle" drain.
4. Flash a different radio.
WARNING: Be extremely careful with this. Flashing a wrong radio is the right way to hard brick your phone.
Although some people are reporting to have fixed battery drainage by trying out a different radio, I seriously wouldn't recommend going on a flashing spree unless you know what you are doing.
My advice here: flash the latest 2.3.4 for your carrier if you haven't yet. From there on, experiment at your own risk.
5. Disable Data and Wifi when idle either manually or with an app."
I seriously get surprised every time someone says they have a horrible battery life, when they keep an internet connection on at all times. Constant data always = battery drain.
Things to do:
- use apps like Green Power to disable data / wifi for you when you are not using it
- learn to turn off your internet connection manually
6. If all else fails - start over from scratch (read: clean install a rom).
I've heard reports of people getting better life with Froyo than GB, or that a specific custom ROM solved their problem for them. A million dollar question: if it works for you, why not use it?
Things to do:
- try a ROM without blur, like CM7
- try Ninja Speed Freak (developer and many users reported great battery life)
- if battery life is your top concern - try Froyo
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FAQ
....coming soon...
... ask away!

Many thanks! Have pass about three days reading about the battery issues/solutions, and I was getting confused by so many info! Will try it tonight!
PS: Does the jug6ernaut's CWM battery fix works for the Orange 2.3.4 ?

eklam said:
Many thanks! Have pass about three days reading about the battery issues/solutions, and I was getting confused by so many info! Will try it tonight!
PS: Does the jug6ernaut's CWM battery fix works for the Orange 2.3.4 ?
Click to expand...
Click to collapse
Are you using stock Orange 2.3.4 rom?
If yes, your Rom might not have the battery jumping problem. You can still use this guide without the battery fix to recalibrate.
Let's wait for someone with Orange 2.3.4 to confirm if jug6ernaut's CWM battery fix can be used or not.

Indeed, I have not the battery jump issue, but I'm exprimenting some weird behavior...
like when I restart the phone, it shows about 10% higher than before. I tried this multiples times yesterday. When it was about 40%, it starts to drop suddenly, 'till it got to 18% and get back to normal decrease to 4%, 2~3 hours later...
See the images attached, the red circles are the times I rebooted it and the blue arrow is when it drops suddenly...

Question on step 4. To confirm, we shouldn't click on anything in BatteryCalibration, all that needs to be done is take note on the MV number, correct?

eklam said:
Indeed, I have not the battery jump issue, but I'm exprimenting some weird behavior...
like when I restart the phone, it shows about 10% higher than before. I tried this multiples times yesterday. When it was about 40%, it starts to drop suddenly, 'till it got to 18% and get back to normal decrease to 4%, 2~3 hours later...
See the images attached, the red circles are the times I rebooted it and the blue arrow is when it drops suddenly...
Click to expand...
Click to collapse
Did it only start doing this on 2.3.4 or you haven't checked before? Anyway, I would do the calibration to see if it changes anything.
coleburns said:
Question on step 4. To confirm, we shouldn't click on anything BatteryCalibration, all that needs to be done is take note on the MV number, correct?
Click to expand...
Click to collapse
No clicking in step 4. Just write down or remember the MV number.

Yes it just starts when updating to 2.3.4... In the first days I got the impression of lower battery level, so reading the forums I saw the restart/level change problem, and tested it

eklam said:
Yes it just starts when updating to 2.3.4... In the first days I got the impression of lower battery level, so reading the forums I saw the restart/level change problem, and tested it
Click to expand...
Click to collapse
You probably updated to 2.3.4 while not at 100% battery level, and it messed up your battery stat. So, yes, do all the steps in this guide except for jug6ernaut's battery fix part.

thanks, ill give this a shot....again.....tonight and hopefully it will fix my issue.

Screenshots of results added to post 1

Download link seems to be down...just errors out when trying to download.
Sent from my MB860 using XDA App

jarsh92 said:
Download link seems to be down...just errors out when trying to download.
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
Which download link? CMW_Jug6_FIXv2.zip?

I'm on a rooted stock GB and I'm having the problem where the battery usage stats are inaccurate and won't got below 90% after using it all day. This all started after I used Battery Calibration. Do you think that this would help correct the problem?
Edit: Also, would I need to complete all of the steps including the CWM part? I haven't flashed any roms yet, so I don't know if this would be necessary.

ThickG said:
I'm on a rooted stock GB and I'm having the problem where the battery usage stats are inaccurate and won't got below 90% after using it all day. This all started after I used Battery Calibration. Do you think that this would help correct the problem?
Edit: Also, would I need to complete all of the steps including the CWM part? I haven't flashed any roms yet, so I don't know if this would be necessary.
Click to expand...
Click to collapse
Seems like you used Battery Calibration while not at 100% charge and your battery stats got messed up.
The reason I recommend using CWM is because the battery stats file is created on each boot. So, with my instructions you can charge the phone to 100% while it's off and wipe the messed up stats before it boots.
You can try using my instructions, without the CWM part, except you need to wipe your battery stats with Battery Calibration app after step 4.

lol i left pandora on since this morning and its only at 67%. ugh, when i wanna force drain the battery it goes slow as hell but when i wanna conserve battery live for usage it drains quick. hahaha.

I just flashed navalynt's πCrust rom fully charged, cleared stats through cwm, booted and now i'm close to 3days.

dictoresno said:
lol i left pandora on since this morning and its only at 67%. ugh, when i wanna force drain the battery it goes slow as hell but when i wanna conserve battery live for usage it drains quick. hahaha.
Click to expand...
Click to collapse
lol yes. I used video playback to drain mine. But if it's really a PITA, you can always just leave it till tomorrow to discharge naturally.
Jonous said:
I just flashed navalynt's πCrust rom fully charged, cleared stats through cwm, booted and now i'm close to 3days.
Click to expand...
Click to collapse
Yep, that's why flashing only when at 100% charge always pays off.

I get the same results by booting to CWM, wiping battery stats, rebooting, starting Battery Calibration, plugging phone into wall charger, charging to 100% (4197mv for me), and then calibrating with Battery Calibration. I start this process at any battery percentage, and have been doing this for a long time now. I have never had to deplete my battery until my phone shuts off, and get great battery life.
Beamed from WinBorg 4G via XDA Premium

CaelanT said:
I get the same results by booting to CWM, wiping battery stats, rebooting, starting Battery Calibration, plugging phone into wall charger, charging to 100% (4197mv for me), and then calibrating with Battery Calibration. I start this process at any battery percentage, and have been doing this for a long time now. I have never had to deplete my battery until my phone shuts off, and get great battery life.
Beamed from WinBorg 4G via XDA Premium
Click to expand...
Click to collapse
After the calibration I had 4200mv, so it seems like you are doing things right in regards to the battery.
"Taking the battery out and putting it back in" trick works wonders though in restoring battery life to maximum state (if you had it decrease for some reason). I've tested it multiple times even back when I had the Milestone.

battery or charger ???

please help me to solve this problem
when i put my gt540 on charging ,, the battery indictor not exceed 50 or 60 % whatever the duration of charging
and i noticed that the charger not heated like the past
sorry for my english ,,,,,,,,,

ali_alashery said:
please help me to solve this problem
when i put my gt540 on charging ,, the battery indictor not exceed 50 or 60 % whatever the duration of charging
and i noticed that the charger not heated like the past
sorry for my english ,,,,,,,,,
Click to expand...
Click to collapse
Hey!
You can try erasing the "battery stats" entering in the "recovery mode" , going to "advanced" and then "delete battery stats"... if you do that and didn't work maybe the problem is the battery.
Did you overclock your phone?
And other question... Did you install a new version off the rom recently? Remember that when you flash the rom is necessary to delete the battery stats to calibrate the battery correctly...
And other thing, if erase the stats solve your problem, in the next recharge follow the next instructions (by Mur4ik):
"Battery Issues Fix:
For all those having battery issues, I have been following all the comments & tips about it on this forum & I have been doing some experimenting over the last few months. And finally I have a working solution which has been working for me (see screenshot of my phone), it's been working now for 53hrs now & still at 45%. And I have been using the wireless at btw 4-6hrs per day & some long calls.
Here's what to do:
1. Drain your battery totally, put it on & off until it's totally drained (screen refuses to come on)
2. Charge it over night (a good 4-6 hours). It might also be good to unplug and re-plug a couple of times if it reaches 100% prematurely.
3. Once the specified time has elapsed, without unplugging the phone from charge, go into (clockwork) recovery (from your reboot screen), go to advanced and, wipe your battery stats, then reboot. Once you click reboot, unplug your phone. And that's it!
Things to note: you must have one of the newer versions(versions 3+) of clockwork to go into recovery from full charge. I hope this is helpful & compliments Mur4ik great work & Joost's wonderful thread "

What ROM?
Some ROMs have a problem with the battery level (e.g. Swiftdroid v2.0 M5 which won't reach full charge). You could try another ROM or wait until the problem is fixed as an update. You could also revert back to a ROM which will reach full charge. You could try using a computer instead of a charger just to see the difference. Does it make any difference if it doesn't reach full charge as it may be functional for the same amount of time if it reached full charge.