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I decided to do an experiment this morning. My fiance and I both have Dincs. We're both running SkyRaider 2.0.1. We both have the 1500mah touch pro 2 battery. I bump charged both phones this morning and both went off the charger at 8:30. I cleared my battery stats in clockwork immediately after the bump charge. I didn't clear her battery stats. She had been getting better battery life largely because I use my phone a lot more than she does. That changed today.
The numbers don't lie...
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my phone - battery bump charged and battery stats wiped:
8/3 - off charger: 8:30am
Stats @ 10AM
Uptime: 1.5 hours
Awake: 1.25 hours
% left: 94%
Stats @ 12:30PM
Uptime: 4 hours
Awake: 3.75 hours
% left: 85%
Stats @ 3:45PM
Uptime: 7.25 hours
Awake: 7 hours
% left: 68%
Stats @ 12:30AM
Uptime: 16 hours
Awake: 10.5 hours
% left: 24%
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Fiance's Phone - Bump Charged, battery stats not wiped:
8/3 - off charger: 8:30am
Stats @ 12:30PM
Uptime: 4 hours
Awake: 1.25 hours
% left: 68%
Stats @ 12:30AM
Uptime: 16 hours
Awake: 7 hours
% left: 12%
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I've come to the conclusion that wiping your battery stats is a very important thing to do and will give you hours more battery life. I'm currently losing a little over 4% per hour, which should give me 23-25 hours of battery life. This is a very significant improvement over the 14-16 hours that she will likely get.
I do find it really odd however that my Uptime and Awake Time are so close. This would normally lead me to believe that some program isn't letting my phone go to sleep, but my battery life indicates that isn't happening.
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Day 2: Didn't get rid of need to bump charge. First bump charge actually seemed to take a little longer this morning (over 30 minutes). Second bump was 6 minutes. Had to scrap today since my fiance's phone didn't charge last night. It wasn't plugged into the wall. Doh!
i might give this a try. i'll be interested to see if others try it and see what their results are.
Would I have to clear battery stats every day in order to achieve this additional battery life, or is it only a semi-regular thing?
???
How do you wipe them in clockwork?
Question- did you fully charge, wipe, then drain battery down /all the way/ before re-charging (e.g. phone shuts itself down) or did you charge, wipe, and then let it drain a bit and then just plug it back in the charger at night without letting it shut itself down from lack of battery?
Thanks.
I just tried this earlier as well. I bump charged (charged with power off until led went green, booted all the way up, and then powered off, repeated this cycle like 3 times) and then wiped battery stats in clockworkmod (it's in advanced).
Too soon to see if it makes a difference, and I really didn't have any problems but figured longer is better right
Edit: I now plan to let the phone run until it shuts its self off
partizan81 said:
Would I have to clear battery stats every day in order to achieve this additional battery life, or is it only a semi-regular thing?
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I doubt it, but don't know for sure yet. I'm tempted to charge it back up now to see if there is a difference in length of time spent bump charging. I hope it shortens it. I won't be clearing either of our stats tomorrow to see if the battery gains comparable to hers stick.
craigmack said:
How do you wipe them in clockwork?
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Click to collapse
reboot into clockwork, scroll to advanced (i believe), then wipe battery stats
Lcsglvr said:
Question- did you fully charge, wipe, then drain battery down /all the way/ before re-charging (e.g. phone shuts itself down) or did you charge, wipe, and then let it drain a bit and then just plug it back in the charger at night without letting it shut itself down from lack of battery?
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Click to collapse
I let it drain itself all the way, then charged it overnight. woke up. bump charged for 1 cycle then cleared the stats.
Doesn't work for me, bump charged this morning then booted to recovery and wiped battery stats. If anything, it appears my battery life is worse and one side effect is I did not have 3g on the first reboot.
s197 said:
Doesn't work for me, bump charged this morning then booted to recovery and wiped battery stats. If anything, it appears my battery life is worse and one side effect is I did not have 3g on the first reboot.
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Your 3g data drop on reboot has nothing to do with wiping your battery stats. It's a known bug in the 2.2 roms. There's also no way that it could make your battery life worse. You're probably just using more heavily today. It's hard to compare one day to the next since your usage levels vary. I know that I use my phone way more than my fiance and comparing the same phones pulled off the charger at the same time is the only way to tell if it makes a difference.
s197 said:
Doesn't work for me, bump charged this morning then booted to recovery and wiped battery stats. If anything, it appears my battery life is worse and one side effect is I did not have 3g on the first reboot.
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I didn't have any problems with 3g on the first boot, and my battery life doesn't really appear to have been effected. I can go about a day between charges, and it stayed the same.... completely anecdotal though and I've only been through one charge.
you should clear stats regardless
Sent from my Incredible using XDA App
vantagejuan said:
Your 3g data drop on reboot has nothing to do with wiping your battery stats. It's a known bug in the 2.2 roms. There's also no way that it could make your battery life worse. You're probably just using more heavily today. It's hard to compare one day to the next since your usage levels vary. I know that I use my phone way more than my fiance and comparing the same phones pulled off the charger at the same time is the only way to tell if it makes a difference.
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Click to collapse
I know about the 3g bug but I've never encountered it, ever, until I wiped the battery stats. Maybe that's just a coincidence.
Maybe the reboot due to the loss of 3g is what drained the battery more quickly initially. My routine is the same every morning. Unplug the phone, turn on pandora, walk ten minutes to work. So I have a fairly even amount of usage for the first few hours since it sits idle after that.
Maybe I'll revise my initial thoughts to say it may not be worse for the battery but I'm definitely not seeing the improvements you are. Can I ask what ROM you're running?
First Time Bumping
I have had issues on and off since I got my Dinc. Running SkyRaider RC3 atm seems worse since I flashed it.... 2.5 seemed better. Doing a bump charge/wipe now and will post later with results. I am a fairly heavy user (I know 'heavy' is very relative) and know that a whole day (about 8am to 8pm) is pushing it for me, but I am lucky to make it till 12pm. I have actually seen it drop to 20% before 11am. During the first few hours of the day, I may check 2 emails, send no more than 3 txt and make one phone call... Seems like a big drain for that.
Weird, I wiped my battery stats today for the first time and also NEVER had a 3g problem when rebooting. Now EVERY TIME I reboot there isn't 3g untill I turn on and off airplane mode. I know the two doesn't seem to be revenant, but it seems like a lot of people are running into the same exact problem. Anyone care to input on this?
Well later on in the day I tried a restart again the the 3g turned on a few minutes after the phone booted. It still hadn't ever taken this long before, but it did come through on its own. Just a little update on my last post. I'm still interested in knowing why though
Well so far so good, but didn't use it much today. 3G bug happens to me every reboot, but comes on in a few seconds. I'm at 54% atm and bumped/cleared at 2pm est its now 10 pm
Sent from my ADR6300 using Tapatalk
If your phone uptime is close or same as the number of hours u have since unplugged, that means it's the usb bug preventing your phone from going to sleep.
What u need to do each time your phone is fully charged (connected to the wall charger or USB cable), u will need to unplug the cable and do a manual reboot.
Otherwise, the phone might still think it is plugged to an external power source and refuse to go to sleep even while your screen is turned off and your phone is idle.
Then u should see using Spare Parts or Battery History App, that your uptime is around 10% to 16% of your total time the phone has been unplugged.
I followed directions on what I thought to be a battery fix, but it ended up making my battery life twice as bad. Actually it takes longer to charge now than it does to drain.
Anyone else have this happen?
Sent from my ADR6300 using XDA App
I did the same thing, but I've only charged once and I didn't time it. I haven't been timing any of my charges or discharges, but maybe give it some more time, that's kind of how stats work isn't it....usage over time? Good luck.
Today I started at 100% (not a powered off full charge though). After 2 hours of moderate use I was down to 50%. I have been charging for an hour via car charger and currently at 67%.
Sent from my ADR6300 using XDA App
Not to be a dink, but then it would appear that you didn't follow the instructions. As a result, YMMV I guess.
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
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Click to collapse
Give it another shot, and I would suggest that maybe it not be thought of as a "fix". Try using the wall charger as well. I only use the wall charger as I have a converter in my vehicles. Let us know how it goes!
Wynnded said:
Not to be a dink, but then it would appear that you didn't follow the instructions. As a result, YMMV I guess.
Give it another shot, and I would suggest that maybe it not be thought of as a "fix". Try using the wall charger as well. I only use the wall charger as I have a converter in my vehicles. Let us know how it goes!
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Those are actually the directions that I followed yesterday afternoon. I didn't notice the battery life being any different after doing that initially. At the end of the day I charged my phone via wall charger for roughly 8 hours while I slept.
I was unplugged for less than two hours and watched it drop down 50%. Wifi was off, Gps also off. I was doing some web browsing and also using the xda app. I played a game for a couple of minutes.. That was it. I really should've checked the battery usage but I didn't think of it in time.
I only charged it in the car today out of necessity because of the super quick discharge. When I'm at home I only charge with the wall charger.
Sent from my ADR6300 using XDA App
I'd venture a guess that you have something else running the background. I honestly wish that I had something more for you, but I'm going to have to fold.
Wynnded said:
I'd venture a guess that you have something else running the background. I honestly wish that I had something more for you, but I'm going to have to fold.
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I've heard others say they found facebook or twitter running in the background and that when they killed that it made a big difference in battery life. Perhaps that?
WiFi set to never turn off
I noticed this morning that WiFi had been set to never sleep, I just changed that t 15 min.
Had a full 100% charge last night did not leave on the charger, minimal use this morning down to 78%.
Let's see how the new WiFi settings works.
oldman_58 said:
I noticed this morning that WiFi had been set to never sleep, I just changed that t 15 min.
Had a full 100% charge last night did not leave on the charger, minimal use this morning down to 78%.
Let's see how the new WiFi settings works.
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Click to collapse
that doesn't do anything unless you leave wifi on all the time, and if you do then that would be one solution to this problem.
htc_woe_is_me said:
Those are actually the directions that I followed yesterday afternoon. I didn't notice the battery life being any different after doing that initially. At the end of the day I charged my phone via wall charger for roughly 8 hours while I slept.
I was unplugged for less than two hours and watched it drop down 50%. Wifi was off, Gps also off. I was doing some web browsing and also using the xda app. I played a game for a couple of minutes.. That was it. I really should've checked the battery usage but I didn't think of it in time.
I only charged it in the car today out of necessity because of the super quick discharge. When I'm at home I only charge with the wall charger.
Sent from my ADR6300 using XDA App
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I experienced the exact same issue after doing the battery thing yesterday. Tried several different kernals since then - no change: I could just about watch the battery go down. This morning I wiped and loaded SR Sense 2.5.2 and the updated stock kernal from ROM manager. We'll see how it goes...
rfarrah said:
I experienced the exact same issue after doing the battery thing yesterday. Tried several different kernals since then - no change: I could just about watch the battery go down. This morning I wiped and loaded SR Sense 2.5.2 and the updated stock kernal from ROM manager. We'll see how it goes...
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Click to collapse
I did this and just installed 2.5.2. I then installed the Hydra kernel and wiped battery stats when I was at 100% and the unit was off/green light. The battery has gone to crap too. Any ideas?
thats weird, i did wipe battery stats (correctly) at 11 last night. i woke up at 9:30 (lol) with 93% battery left. the phone was sleeping the whole time, but i had sync turned on and had recieved several facebook updates, txts, and emails. now im losing around 10%battery every two hours or so, and i am using the phone to send txts and emails every three to five minutes. so battery life is actually much better. after the cable is unplugged, is it necessary to let the battery die fully, then charge, or can i charge it now? (its at around 30%)
so basically, i was wondering if it is necessary to run your battery fully down after doing a wipe battery stats
I don't know what to tell you guys. Since wiping stats, my phone has been up for 36 consecutive hours with an awake time of 2:40 and the battery is at 30%.
For reference I guess....
SLOflatlander said:
so basically, i was wondering if it is necessary to run your battery fully down after doing a wipe battery stats
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Great question. Anyone have any knowledge on this? I didn't let mine discharge all the way.
I do have some kind of update. I had to do a factory wipe today and since I did that my battery life has been much better.
Sent from my rooted Incredible using XDA App
Has anyone else done this that can report there results?
I was about to do this but now I am skeered.
It's completely impossible for wiping your battery stats to make your battery life worse. It's a common misconception that by wiping your battery stats you somehow condition your battery. It's actually quite the opposite, because you're actually conditioning Android by wiping your stats. No matter what your battery percentage or meter says, your battery is still capable of holding a certain amount of electrical charge and your phone will not die until it's fully discharged. On the other hand it *might* make your percentage or battery meter read wrong if you either:
a. wiped your battery stats without a full bump charge (e.g. wiping your stats at 60% charge *might* make your phone think 60%=100% and as a result, you'd see huge decreases. but, you would most likely sit there with a phone showing a 1% charge for hours after it got there.)
b: didn't allow your phone to discharge fully after wiping your stats (same problem as example a, but the inverse of it)
All wiping your battery stats does is delete the file "batterystats.bin" from your /data/system folder. This file is recreated when you boot your phone after wiping them. It keeps the data on what's using your battery for when you click "battery use" in the settings menu. It's also thought to hold the stats that tell you phone what a full charge and no charge feels like and that if you fully bump charge your phone, wipe that battery stats, and then full discharge your phone (without interrupting it by switching ROMs or doing updates) that you will have a more accurate battery meter. It won't eliminate the need to bump charge your phone or make your battery life better. It will just be perceived as better since you won't get 20% drops in your reading in 30 minutes due to a badly calibrated batterystats.bin file. Also, you'll feel better because instead of looking at a 50% reading, you'll be looking at 60%.
Your battery still has the same capacity, charges to the same level, and discharges in the same amount of time. The only thing that can change those things are usage levels.
so should i redo my wipe battery stats then? when i originally did it, i ran it down to around 40%, then rebooted, then i plugged it in around 15%. would this mess it up then?
vantagejuan said:
It's completely impossible for wiping your battery stats to make your battery life worse. It's a common misconception that by wiping your battery stats you somehow condition your battery. It's actually quite the opposite, because you're actually conditioning Android by wiping your stats. No matter what your battery percentage or meter says, your battery is still capable of holding a certain amount of electrical charge and your phone will not die until it's fully discharged. On the other hand it *might* make your percentage or battery meter read wrong if you either:
a. wiped your battery stats without a full bump charge (e.g. wiping your stats at 60% charge *might* make your phone think 60%=100% and as a result, you'd see huge decreases. but, you would most likely sit there with a phone showing a 1% charge for hours after it got there.)
b: didn't allow your phone to discharge fully after wiping your stats (same problem as example a, but the inverse of it)
All wiping your battery stats does is delete the file "batterystats.bin" from your /data/system folder. This file is recreated when you boot your phone after wiping them. It keeps the data on what's using your battery for when you click "battery use" in the settings menu. It's also thought to hold the stats that tell you phone what a full charge and no charge feels like and that if you fully bump charge your phone, wipe that battery stats, and then full discharge your phone (without interrupting it by switching ROMs or doing updates) that you will have a more accurate battery meter. It won't eliminate the need to bump charge your phone or make your battery life better. It will just be perceived as better since you won't get 20% drops in your reading in 30 minutes due to a badly calibrated batterystats.bin file. Also, you'll feel better because instead of looking at a 50% reading, you'll be looking at 60%.
Your battery still has the same capacity, charges to the same level, and discharges in the same amount of time. The only thing that can change those things are usage levels.
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Do you know how we can see what's inside the actual batterystats.bin file? I tried in root explorer and cannot open in no matter how I try.
i dont care what vantagejuan says, when i tried this process...and did it correctly, my battery was down to 85% within an hour..i know this because i unplugged it when i woke up for work, and i when i clocked in, it was at 85%
it was never this bad, i tried locating the file again from an old backup, but it didnt help...im hoping that like someone else said, a couple cycles through it will get better
im using the skyraider 2.5.2 vanilla with the hydra oc/uv kernal
i had this setup before AND after trying the battery fix and im using the seidio 1750...
frustrations are back from when i first got the phone
So im at a convention thisweekend and its been a while since I flash my rom to 3.2 freshbaked. This weekend I notice straight from 100% I was burning through most of it in 6-7 hour with out alot of usage. I took my phone out at 11:30 today and its only 4 and im already down to 36%. My battery usage shows 36% from system 22 from cell standby with 0 signal lost and 21 idle. Ill flash an updated rom when u get back.
Sent from my PC36100 using XDA App
flashed new 3.3.0 fresh and after a full charge i've left it idle for 2 hours and i've already drained 20% of the battery. That roughly 10 hours of doing nothing and my phones dead.
It could be some app you are using/installed.
I recently flashed Fresh and expierenced the same situation . My Android system was always the highest on the list . I removed apps and stripped it down , I wiped Dalvik and Cache you name it and the phone could sit idle and the Android system would be as much as cellstand by if not higher . I eventually just went back to stock Froyo with root . Android system now sits lower than cell stand by and phone idle
I'm using the newest fresh Rom with kings 9 kernel and set CPU. I never been a heavy user but I'm sitting at 19hrs and 43% I took it off the charger around 3pm Saturday and have not charged it since.
Sent from my PC36100 using XDA App
fresh 3.3, and netarchy's 4.1.9.1 fresh comp kernel, run your battery down to 3%, once there, boot into recovery, wipe your battery stats, and then reboot, once you reboot you may only get as far as the lockscreen before it shuts off, then either swap in a spare fully charged battery, or fully charge your battery with the phone turned off.
This is insane I'm currently Losing 1. 5. % a minute. Took it off 8 minutes ago and its down to 86 with 70% system usage
Sent from my PC36100 using XDA App
What is your signal like in the building? I had a similar issue when I couldn't get a good signal. The phone would last four hours just sitting on my hip.
topdawgn8 said:
What is your signal like in the building? I had a similar issue when I couldn't get a good signal. The phone would last four hours just sitting on my hip.
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usually full bars.
mystax said:
usually full bars.
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whats the Up & Awake times?
with 22% left i unplugged it around 6 hour ago.
My Uptime is 27:13:36
Awake - 4:19:58
36% Cell Standby
30% Idle
22% System
7% display
5% voice call.
I bought a big ass battery, problem solved...
installed collins battery mod hope this works.
Hey Guys, i have noticed before i did my restore through CWM Recovery that my battery life was at 30% and after the restore it jumped up to 73%!!!! After that i was skeptical about what the restore has done and i am seeing a discrepancy in my battery life before and after =/
Any reason for this?
I also tried wiping my battery stats and doing a battery calibration through Nemu's app (Battery Calibration) and still the battery is nothing to what it was before. Before it would go a whole day before i needed to charge it and when i did charge it at the end of the day it would be at 20% or so with heavy use and a lot of phone call time, but now the battery life only sustains for about half a day if that with very minimal use and light talking, in fact it drains at about 10% every 2-3 hours when i have the screen off...
Any hints on as to why and how to prevent this again should i do a restore through CWM Recovery?
I noticed a similar effect with my Atrix 4G, however I forgot about it until I saw this topic.
Not sure why it does this but I have noticed similar results multiple times. After any wipe or restore I try to do a full charge with the phone off. This seems to help, or at least gives me peace of mind...
Sent from my MB860 using Tapatalk
well going from 33% to 70% could be normal since recovery replace the charge .bin so you are actaully charging you device. try pull the battery an recharge,
maybe there is a rogue app try start "freezing" som apps one by one and check battery
didn't realize it was that extreme, but ^ is right, you're charging while you mess around in CWM. i went from ~15% to 40% on the next boot while reinstalling GB 3.5
I have CM7.1 on my MT4G. Over the past week or so, my battery has been dying after 2-3 minutes of use. I'll get a full charge, take it off the charger, use any app(Angry Birds, Gtalk, text messaging...) and the phone will shut itself off after just a couple minutes of use. When I turn it back on, it says 2%-3%. It then shuts itself off again, I plug it in and turn it on...says anything from 3% to 90%.
I've always ran the battery down and charged to full. Is my battery kaput? Is there a way to fix this?
deadlittlepuppy said:
I have CM7.1 on my MT4G. Over the past week or so, my battery has been dying after 2-3 minutes of use. I'll get a full charge, take it off the charger, use any app(Angry Birds, Gtalk, text messaging...) and the phone will shut itself off after just a couple minutes of use. When I turn it back on, it says 2%-3%. It then shuts itself off again, I plug it in and turn it on...says anything from 3% to 90%.
I've always ran the battery down and charged to full. Is my battery kaput? Is there a way to fix this?
Click to expand...
Click to collapse
Most likely.. take out the battery and inspect for leaks(might be very small discharge you might not see it clearly leak can and will damage your phone)..let it die completely, and let it stay off, charge it till the green light comes on, reboot into recovery, clear battery stats, reboot and see how long it last, also change your brightness, and other settings that might be consuming battery use..if none of these helps.. just buy another battery.
Sounds like your battery is screwed. Just buy a oem battery or get a mugen power 1650mAh
Sent from my HTC Glacier using XDA App
My issues aren't quite that bad, but after I upgraded to CM7.1 from 7.0, by battery has been terrible. 15-20m of phone calls over BT takes ~20% of the battery. 15m on Angry Birds chewed up ~40% of the battery. I downloaded the latest nightly (252) and will see what happens.
Try a dif battery and see if it does the same thing. So you can rule things out
Sent from my HTC Glacier using Tapatalk
Mines also been horrible since I went from CM 7.0 to CM 7.1. Not sure whats up but it dies in like 6 hours on standby. the battery use app shows that most of the battery usage is by "Cell Standby". So effectively, doing 'nothing' is eating up the battery?
~Phil
I guess I'm not having the problem you guys are having with battery drain. Granted I didnt use my phone that heavily, but still sitting at 60% after 10 hours. But if your battery is dead after 3 minutes something is seriously wrong, I agree and try a new battery.
Sent from my HTC Glacier using xda premium
pompeiisneaks said:
Mines also been horrible since I went from CM 7.0 to CM 7.1. Not sure whats up but it dies in like 6 hours on standby. the battery use app shows that most of the battery usage is by "Cell Standby". So effectively, doing 'nothing' is eating up the battery?
~Phil
Click to expand...
Click to collapse
You need to calibrate the battery after changing ROM's. Download a battery calibrator from the market. (Don't pay for one. There are like 10 free ones)
Charge the phone fully overnight. Calibrate it in the morning.
Give it a few days to gather new battery data, and then enjoy getting a full day's use from the phone.
Update
So, it's gonna have to be the battery. Recalibrated, no good. Tried a few different ROMs from CM7 nightlies to MIUI, no good.
Waiting for the new battery to get here to be sure.
Thanks for all of the help and advice!
same problem here
hello there, i got 2 mytouch 4g both running the same rom (virtuous unity 2.39) one of them has eaten 2 batteries that i bought thinking that the batteries were somehow broken or damaged... i came across this thread, read the reply recomending battery calibrator when i reached for my phone (that i left sitting on my drawer waiting for a new batt AGAIN) to give it a try and to my surprise it was still on and i has been on for 2 days 11hours and the fricking battery was at 97% before that it started to turn off-discharge so i put the thing on airplane mode and there it was till now... dunno why or what but i think it has something to do with the radio/network... hope we find a cure for this
I've been having this same issue, and I was wondering if replacing the battery fixed the issue? Thanks.