Related
I'm within my 30days
I love this phone.
My battery discharges rapidly, especially their the first 5 mins off the charger.
I have been looking at this issue, but I am new to android.
I find it funny we can't actually see a battery percentage without installing third party apps. Then Sprint tries to say that these apps are the cause of the issue.
Trust me, I understand that this phone will drain the battery more rapidly than a lot of other phones. But there is something wrong with the way this phone charges the battery, therefore we see less battery life.
Can anyone prove or disprove their little claim that I am killing the battery by looking at its performance?
Sent from my PC36100 using XDA App
tell him that the phone and the plan is also draining your wallet, may be you should do something about that too
the reason your battery sometimes drops so quickly after you take it off the charger has been well documented. several threads with ways to improve the battery as well.
it has to do with the way the battery actually charges. it charges to 100% then allows the phone to discharge to 90% then charges up again...so at any time when you unplug the phone you may have 91% to 100% charge. or something like that.
1) have you tried conditioning your battery? (plug, wait, unplug, rinse repeat)
2) are you rooted? (try using something like SetCPU or JuiceDefender)
3) are you on stock or custom rom? (the custom kernel devs have been working on this issue)
hmmmm...how could you possibly disprove the sprint person? try not using it for a couple days...see what happens.
DraginMagik said:
try not using it for a couple days...see what happens.
Click to expand...
Click to collapse
No doubt....my withdrawals kick in after its been in my pocket for too long...
While do appreciate the input, I disagree with it being well documented. I have tried both top off methods, aka conditioning, and it seems to give you more of a charge, but as soon as discharge the battery you are right back where you started, conditioning the battery every morning is not ideal.
Sent from my PC36100 using XDA App
If the phone is new, its going to take a few cycles to improve. I remember when in my first week it wouldn't last a day. Now I can get 20-30 hours out of it. (ROMs and tweaking of course.)
There are tons of threads detailing what you can do to improve battery life... What have you done?
The purpose of a battery graph is to compare how your phone discharges to how your phone is being used. What plotting app do you have?
engagedtosmile said:
If the phone is new, its going to take a few cycles to improve. I remember when in my first week it wouldn't last a day. Now I can get 20-30 hours out of it. (ROMs and tweaking of course.)
Click to expand...
Click to collapse
This is false...lithium batteries do not get broken in or conditioned. What you saw is more than likely a result of constant using your new toy. The novelty has worn off and you have tweaked it so now you have extended the battery life.
I have disabled Bluetooth, WiFi, gps, and 4g
I set the radio to cdma only, and this led to problems. So I cleared all data And started over.
Are youguys seriously ok with 'conditioning' your batteries every morning?
Sometimes I think people think I'm just trying to find faults with this device. I want to keep the phone, but I also want this problem clearly identified and resolved. I should not have to use my tilt 2 to charge my battery because my new state of the art phone can't do it correctly.
Sent from my PC36100 using XDA App
lettcco said:
tell him that the phone and the plan is also draining your wallet, may be you should do something about that too
Click to expand...
Click to collapse
it's called the Fat Wallet Mod Discussed in other threads also,
But yes, I think it's dumb to have to condition the phone to get the best battery life, and how I have to get soo much good Light to take a good camera shot when other comparable phones don't need too. You have to weigh the goods and bad yourself.
The discharging of the battery is necessary as trickle charging a lithium battery is not recommended...thus this leads to you possibly having 95% instead of the full 100%. This is normal. Just unplug the device and charge again, or top it of in the car.
You never mentioned if you were rooted or not. If you don't use the news then don't sync it. If you don't use gtalk then disable it and turn off the auto sign in...i found that this app uses a lot of battery and its turned on by default.
It is not conditioning your battery.
When you charge your new evo and it hits 100%, the phone STOPS charging. It has no trickle charge. It begins charging again at 90% if still plugged in, although it reads 100% until it comes off the charger.
SO, when you unplug it, it says 100%, but could be anywhere between 90 and 100. If you simply unplug your phone, wait for it to display something other than fully charged (usually takes 30-60 seconds), then plug it back in, it will then charge back to 100%. You can simply unplug it, wait a few and then plug it back in while you go about your shower and cereal. When you are ready to leave the house you'll probably be at or near 100% instead of seeing it drop to something much lower.
This is NOT conditioning your battery. A more appropriate term would be "bump charging". As you are simply bumping it back to a charge state when it was in a resting state.
Another GREAT method of increasing battery life is resetting your battery stats. This is clearing out what the phone defines as full, and as empty and setting up these values again. I am not sure why, but they are off on many phones. They also get wiped anytime you flash a new rom so this procedure would again be in order if you experience poor battery life.
These are the instructions straight off cyanogen wiki. You can also reset them using Amon recovery.
Battery recalibration
If you're experiencing higher than normal battery drain, try the following:
1.Charge the phone to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings -> About Phone -> Status -> Battery Level = Full.)
2.Boot to recovery mode and go to console (or adb shell) and type:
mount -a
rm /data/system/batterystats.bin
NOTE: Newer Amon_Ra and ClockworkMod recoveries have an option to delete the battery stats, do this in place of the console commands above.
NOTE: To have the most accurate of battery stats, reboot the phone immediately after wiping the battery stats and wait for CM to boot completely to the desktop. Once your entire boot is done and you have full access to the phone, go ahead and pull the charger and continue with this troubleshooter.
1.Do not charge the phone until after draining the battery completely, resulting in it automatically shutting off.
2.Recharge the phone completely and then use as you normally would.
Excellent write up carguy... +15 internets to you
surrealmethod said:
Excellent write up carguy... +15 internets to you
Click to expand...
Click to collapse
why thank you kind sir!
potna said:
I'm within my 30days
I love this phone.
My battery discharges rapidly, especially their the first 5 mins off the charger.
I have been looking at this issue, but I am new to android.
I find it funny we can't actually see a battery percentage without installing third party apps. Then Sprint tries to say that these apps are the cause of the issue.
Trust me, I understand that this phone will drain the battery more rapidly than a lot of other phones. But there is something wrong with the way this phone charges the battery, therefore we see less battery life.
Can anyone prove or disprove their little claim that I am killing the battery by looking at its performance?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
sprint rep is an idiot and if you took the time to search instead of making this post you could have saved yourself some trouble
no...i can't imagine anyone 'conditions' their battery daily. however, if experiencing issues wiping the stats and doing the conditioning thing do have an impact.
Sporkman said:
sprint rep is an idiot and if you took the time to search instead of making this post you could have saved yourself some trouble
Click to expand...
Click to collapse
While most of the battery problem isn't the plotter app, the plotter app is using a fair amount of battery, so I usually would recommend not having such apps running except when you are diagnosing problems. Turn off various apps sync settings and keep background apps to a minimum, like juice plotter, battery widgets, and other data intensive apps and widgets. That right there will save you some power. Other than that, follow all the excellent suggestions that are already in this thread. Oh, and I find I get better battery when I just don't worry about it. I set up all my sync services and then leave them alone. Then just go about my day, using my phone as needed. Constantly worrying about it only wastes power because you are constantly fiddling with settings and apps.
PROTIP: Never believe anything a cellular rep tells you. Ever. EVER!
The Evo just has terrible battery life, that's my personal conclusion. One of the trade offs with such a huge screen and such. You'd think that in this day and age battery technology would have kept up with all the other bells and whistles, but no.
carguy4471 said:
It is not conditioning your battery.
When you charge your new evo and it hits 100%, the phone STOPS charging. It has no trickle charge. It begins charging again at 90% if still plugged in, although it reads 100% until it comes off the charger.
SO, when you unplug it, it says 100%, but could be anywhere between 90 and 100. If you simply unplug your phone, wait for it to display something other than fully charged (usually takes 30-60 seconds), then plug it back in, it will then charge back to 100%. You can simply unplug it, wait a few and then plug it back in while you go about your shower and cereal. When you are ready to leave the house you'll probably be at or near 100% instead of seeing it drop to something much lower.
This is NOT conditioning your battery. A more appropriate term would be "bump charging". As you are simply bumping it back to a charge state when it was in a resting state.
Another GREAT method of increasing battery life is resetting your battery stats. This is clearing out what the phone defines as full, and as empty and setting up these values again. I am not sure why, but they are off on many phones. They also get wiped anytime you flash a new rom so this procedure would again be in order if you experience poor battery life.
These are the instructions straight off cyanogen wiki. You can also reset them using Amon recovery.
Battery recalibration
If you're experiencing higher than normal battery drain, try the following:
1.Charge the phone to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings -> About Phone -> Status -> Battery Level = Full.)
2.Boot to recovery mode and go to console (or adb shell) and type:
mount -a
rm /data/system/batterystats.bin
NOTE: Newer Amon_Ra and ClockworkMod recoveries have an option to delete the battery stats, do this in place of the console commands above.
NOTE: To have the most accurate of battery stats, reboot the phone immediately after wiping the battery stats and wait for CM to boot completely to the desktop. Once your entire boot is done and you have full access to the phone, go ahead and pull the charger and continue with this troubleshooter.
1.Do not charge the phone until after draining the battery completely, resulting in it automatically shutting off.
2.Recharge the phone completely and then use as you normally would.
Click to expand...
Click to collapse
I'm sorry but that all sounds like the formula to derive the circumference of the nucleus of an atomic variable perpendicular to the perimeter of the nth root in relation to the isosceles of the .........geezus, all that just to get a smidgen of decent battery life...
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.
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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.
I've been having a problem with my battery for a while now where the mV's stay where they should and the percentage drops really fast leaving me with horrible battery life. I've tried calibrating my battery plenty of times and tried various guides and fixes but nothing seems to fix my battery. Can anyone help me or should I invest in a new battery? Thanks
For example, I took a screenshot while my battery was at 3593mV (4200mV is full) and it said it was at 15%. This happens on every rom I flash but I'm currently on Miui Alpha 3 if that makes any difference.
i am sure you have looked at this thread... http://forum.xda-developers.com/showthread.php?t=1407569, it seems there are a few of us that have some battery issues.
I have seen that thread, but I'm not sure if I have the same problem or not. For me, the percentage of my battery just goes down way faster than the actually charge on my phone.
for some reason, i think that its the way the phones are reading the data. the math is wrong. the only reason why i am thinking this is cause my dads phone is doing the same thing, not showing 100% charge when it should be.
what happens when your phone reaches 0%? does it shut off? whats the battery voltage when this happens?
My phone shut off at 0%. After rereading that thread I managed to fix my battery by doing this:
1. Charge to %100
2. Use a wall charger and take the battery out so it shows a question mark, then put the battery back in till you think its at 4200mV
3. Keep phone plugged in and delete the battery stats in /data/system, and cc_data, cc_data_old, and powerup from /data/battd
Hope those directions are good enough, hope you get your batteries fixed!
dj11596 said:
My phone shut off at 0%. After rereading that thread I managed to fix my battery by doing this:
1. Charge to %100
2. Use a wall charger and take the battery out so it shows a question mark, then put the battery back in till you think its at 4200mV
3. Keep phone plugged in and delete the battery stats in /data/system, and cc_data, cc_data_old, and powerup from /data/battd
Hope those directions are good enough, hope you get your batteries fixed!
Click to expand...
Click to collapse
post back and let us know if this is a TEMP fix. it was in my case, but i did not remove my batt stats.
So, I am using MIUI 2.1.12 with LorDModUE 8.6 CFS 2WCR kernel.
I have installed 4EXT Recovery Controller and CurrentWidget.
With CurrentWidget, I monitored the battery while charging until it reached 0mA (which means the battery is as full as it can get).
With 4EXT Recovery Controller I removed the batterystats.bin file.
I drained the phone until it shut itself down. Then I charged it (without powering it on) until it was full (LED was green).
I power on the phone... 99% battery.
I plug in the charger... it says 26mA (which means it would reach 0mA as in full charge in another 20-30 minutes).
WHAT THE HELL?!
This never happened while I was using the default CM kernel included in MIUI. Only happened with Tiamat and LordMod.
--
Seriously, guys, what is the best way to calibrate the battery?! Perhaps I should not have let it shut itself down, but plug the charger when the phone was at 1% (which lasted for another 20-30 minutes, by the way)?!
if I don't remember it wrong the LED turns green at 90%.
afair the battery doesn't get charged during booting. which means that you probably lost the 1% during boot.
I also used the same method and got it calibrated correctly
but is their any other way too ?
monki79 said:
if I don't remember it wrong the LED turns green at 90%.
Click to expand...
Click to collapse
The LED turns green on AOSP ROMs at 90%, when the phone is ON, as far as I know. When it is OFF, it works fine (goes green at 100%).
I want to hear from the developers / those that know how these codes work and stuff... Cause I don't want to look at my phone how the percentage goes down so fast, then, when it reaches 10%, I can play Pocket Legends for another 20 full minutes -.-
Formhault said:
With CurrentWidget, I monitored the battery while charging until it reached 0mA (which means the battery is as full as it can get).
With 4EXT Recovery Controller I removed the batterystats.bin file.
I drained the phone until it shut itself down. Then I charged it (without powering it on) until it was full (LED was green).
I power on the phone... 99% battery.
I plug in the charger... it says 26mA (which means it would reach 0mA as in full charge in another 20-30 minutes).
WHAT THE HELL?!
Click to expand...
Click to collapse
The battery doesn't charge to full capacity first time around. When I used to calibrate the battery I would charge until it was drawing 0mA, then reboot; it would be drawing about 26mA, so I'd charge to 0mA again and reboot; it would now be drawing about 15mA, so I'd carry on charging to 0mA, reboot, repeat, repeat and repeat until it eventually continued to draw 0mA after a reboot. Then I'd delete the batterystats.bin file.
As one of Google's engineers says, deleting your battery stats isn't going to improve your battery life. I haven't done any of that for a long time now and I've noticed precisely no difference (except for the extra time I've gained by not having to wait for it to finally charge up to full capacity).
hopscotchjunkie said:
The battery doesn't charge to full capacity first time around. When I used to calibrate the battery I would charge until it was drawing 0mA, then reboot; it would be drawing about 26mA, so I'd charge to 0mA again and reboot; it would now be drawing about 15mA, so I'd carry on charging to 0mA, reboot, repeat, repeat and repeat until it eventually continued to draw 0mA after a reboot. Then I'd delete the batterystats.bin file.
As one of Google's engineers says, deleting your battery stats isn't going to improve your battery life. I haven't done any of that for a long time now and I've noticed precisely no difference (except for the extra time I've gained by not having to wait for it to finally charge up to full capacity).
Click to expand...
Click to collapse
I know about Google's statement.
The battery would drain fast, then, when it reaches 1% or 5%, you would be able to use your phone like it had 30%. Just that it shows the values wrong. Calibrating the battery should fix that...
Anyway... I'm not going to struggle any further.
I'll tell what I've done;
- I have installed Battery Balibration app and CurrentWidget,
- Waited battery charging till reached 0ma,
- Removed battery stats and restarted,
- Then waited to drain battery and shut-down itself,
- I connected USB charger to PC and TURN ON THE PHONE !!
- Again waited battery to reach 0 ma,
- Then plugged off and monitored that current widget shows the range btw 3-10 !!
I don't know exactly if it helps but, maybe you should turn on your DHD while carging..
For further instructions you may qant to check this topic;
http://forum.xda-developers.com/showthread.php?t=1226016
Formhault said:
So, I am using MIUI 2.1.12 with LorDModUE 8.6 CFS 2WCR kernel.
I have installed 4EXT Recovery Controller and CurrentWidget.
With CurrentWidget, I monitored the battery while charging until it reached 0mA (which means the battery is as full as it can get).
With 4EXT Recovery Controller I removed the batterystats.bin file.
I drained the phone until it shut itself down. Then I charged it (without powering it on) until it was full (LED was green).
I power on the phone... 99% battery.
I plug in the charger... it says 26mA (which means it would reach 0mA as in full charge in another 20-30 minutes).
WHAT THE HELL?!
This never happened while I was using the default CM kernel included in MIUI. Only happened with Tiamat and LordMod.
--
Seriously, guys, what is the best way to calibrate the battery?! Perhaps I should not have let it shut itself down, but plug the charger when the phone was at 1% (which lasted for another 20-30 minutes, by the way)?!
Click to expand...
Click to collapse
Theres a better alternative, use the battery calibration app in the market
https://market.android.com/details?id=com.nema.batterycalibration&hl=en
It's always worked a charm for me.
knp3385 said:
Theres a better alternative, use the battery calibration app in the market
https://market.android.com/details?id=com.nema.batterycalibration&hl=en
It's always worked a charm for me.
Click to expand...
Click to collapse
Right, with Battery Calibration i have solved my problem with battery, now i can use all day without charging.
Sorry if my question is a silly one...
what's the point in calibrating your battery? I mean... except for the stats (and I guess, the percentage in the bar), do you improve your battery life by calibrating it?
Duwie_80 said:
Sorry if my question is a silly one...
what's the point in calibrating your battery? I mean... except for the stats (and I guess, the percentage in the bar), do you improve your battery life by calibrating it?
Click to expand...
Click to collapse
Some says it's irrelevant, calibrating it's just an illusion
But did calibrate my battery and my battery life is improved too terrific !!
Duwie_80 said:
Sorry if my question is a silly one...
what's the point in calibrating your battery? I mean... except for the stats (and I guess, the percentage in the bar), do you improve your battery life by calibrating it?
Click to expand...
Click to collapse
fremce said:
Some says it's irrelevant, calibrating it's just an illusion
But did calibrate my battery and my battery life is improved too terrific !!
Click to expand...
Click to collapse
I don't really know. It would be silly for the Android system to display the battery percentage (up there, in the status bar) by reading the batterystats.bin.
My phone's battery level drops somewhat fast, then, when it would reach 30% or so, it doesn't drop as fast. Also, at times, when I reach 10%, 5% or even 1%, I am still able to play an intensive game like Pocket Legends for an extended ammount of time (30 minutes, for example). Pocket Legends is CPU/GPU intensive and it also requires an active Internet connection, so I'd say it's pretty power hungry.
I don't really get the entire purpose of calibration. I have done it and I can't seem to notice any difference.
I'm going to do it again, now, because I switched to a Sense ROM (RunnyDrOiD). I'll monitor the battery with Battery Monitor Pro. When it reaches +0mA, I'll reboot and so forth so forth until it's drawing 0mA, although I doubt I'll resist that much time, so I'll just delete the batterystats.bin after a few reboots, when it reachs 0mA.
fremce said:
Some says it's irrelevant, calibrating it's just an illusion
But did calibrate my battery and my battery life is improved too terrific !!
Click to expand...
Click to collapse
If everybody knew the meaning of the word "calibration" then nobody would talk such nonsense.
Calibration improves the accuracy of the percentage shown!
The illusion is that you improve your battery life with it....
Dlog said:
If everybody knew the meaning of the word "calibration" then nobody would talk such nonsense.
Calibration improves the accuracy of the percentage shown!
The illusion is that you improve your battery life with it....
Click to expand...
Click to collapse
As I said... calibrating the battery may fix the "problem" where once you reach 1% / 5% you can use your phone like it still had ~20%.
I'm gone test it too...
Hi there people, I didn't find any battery thread similar to what I'm going to say so I'll spam a little bit
I've just found as I was fooling around this: http://www.ebay.com.au/itm/PowerSki...AU_MobilePhoneAccessories&hash=item20c1a1c8ad
It suppose to be a silicon case with a battery build in(1500mah ..not bad), I don't know the dimensions but I just someone might think it as a solution to our 1230mah small battery(with this you have a total of 1730mah which is plenty)
P.S. To mods.. feel free to delete my post, I just wanted to inform the people about a solution that might be handy
evronetwork said:
Hi there people, I didn't find any battery thread similar to what I'm going to say so I'll spam a little bit
I've just found as I was fooling around this: http://www.ebay.com.au/itm/PowerSki...AU_MobilePhoneAccessories&hash=item20c1a1c8ad
It suppose to be a silicon case with a battery build in(1500mah ..not bad), I don't know the dimensions but I just someone might think it as a solution to our 1230mah small battery(with this you have a total of 1730mah which is plenty)
P.S. To mods.. feel free to delete my post, I just wanted to inform the people about a solution that might be handy
Click to expand...
Click to collapse
https://www.google.com/search?q=xda+powerskin+desire+hd
first link....
I'm experiencing the following issue:
I discharge the telephone completely and I put it under charge.
I check the phone and it says, for example, that it's charged at 3%. Ok reasonable, I've attached to the charger just few minutes ago.
After a 5/10 minutes I check it back and it's 33% charged!
Today I made a reboot while charged and after the reboot, from 32%, it went up to 66%!
I couldn't charge it to 100%, it stuck at 98%.
I've installed under /etc/init.d/ the script 87calibrator.sh by Brainmaster since I'm using CNA 1.6.0 ROM (with Air Kernel 3.9.5 voodoo standard - gov: lazy; scheduler: deadline - DeepIDLE: on, NO Screen Off Max Freq enabled).
I feel there's something that needs to be fixed... it doesn't behave like this each time... in between the ROM changes I've experienced just a few times...
(Wipe Data/Cache+Wipe Dalvik and if passing from a ROM to another I also format /system).
Is anybody else experiencing this issue?
Android is terrible with actual battery stats, just don't look at it while charging
Sent from my Nexus S using XDA
Issue? I don't see one.
The Nexus S uses a State of Charge method which can be somewhat inaccurate initially, but as time progresses will become more accurate. Often while charging and booting simultaneously, the charge will go up by a fairly large percentage. This is obviously incorrect, but over the next few hours it will settle itself at it's approximate true charge. I'm still unsure if this effects the final charge % as i havn't tested it that much, but it likely does, though it will progressively get better.
Also, it is a hardware restriction regarding charging to 100%. Stock Nexus S only charges to 96% or so without dodgy methods to actually get it up. Anything else that says 100% is purely cosmetic - this cosmetic change can be found in various kernels.
Harbb said:
Issue? I don't see one.
The Nexus S uses a State of Charge method which can be somewhat inaccurate initially, but as time progresses will become more accurate. Often while charging and booting simultaneously, the charge will go up by a fairly large percentage. This is obviously incorrect, but over the next few hours it will settle itself at it's approximate true charge. I'm still unsure if this effects the final charge % as i havn't tested it that much, but it likely does, though it will progressively get better.
Also, it is a hardware restriction regarding charging to 100%. Stock Nexus S only charges to 96% or so without dodgy methods to actually get it up. Anything else that says 100% is purely cosmetic - this cosmetic change can be found in various kernels.
Click to expand...
Click to collapse
Hi, thank you for your answer. I wasn't aware about the dynamic calibration!! Yes the 100% charge it's not physic but cosmetic, I know. It was just to mention that I don't get to full 100%.
So if the battery calibration is "by design", do you know how Brainmaster's script affects this calibration?
It doesn't. That script deletes the batterystats.bin file (somewhere in the /data directory). All this file does is tabulate human-readable battery statistics for you to view when you look at Settings > Battery, so you know how much power has been drained by each app or service, and the graphing over time. This is all it does. A charge to ~90% or higher will automatically delete this file, as you can see by the battery screen resetting itself.
Harbb said:
It doesn't. That script deletes the batterystats.bin file (somewhere in the /data directory). All this file does is tabulate human-readable battery statistics for you to view when you look at Settings > Battery, so you know how much power has been drained by each app or service, and the graphing over time. This is all it does. A charge to ~90% or higher will automatically delete this file, as you can see by the battery screen resetting itself.
Click to expand...
Click to collapse
Ah ok, than that's explaining why they all say that the deleting stats it's not useful to calibrate the device
Thank you very much man!! Much appreciated!
You're welcome mate