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Im trying to recalibrate my batter because of terrible battery life. After letting it die and charging it while its on I had no issues getting it to 100%. I powered down the phone to charge it while it was off and it seems like its hanging at the last percent and wont go to 100. I have had it plugged in for a few hours now and its still showing the same charge but wont fill up the last little bit of the meter. Anyone have any ideas? Im really thinking about tossing the battery and getting a new one. It seems like i got a bad one. no matter what I do i can only get about 12 hours of light use. I work 10-12 hour days so I have to constantly worry about my phone dying everyday I work.
I had the same issues. Tried every battery trick I found on the forums, but nothing worked. I went to ATT, they sent me a new battery and it everything's good now
So try talking to ATT and getting a stock OEM battery before you buy one
I picked this up and it gives a lot of peace of mind: http://www.amazon.com/gp/product/B004206TQ8/ref=oss_product
Dngen. Are you getting greater battery life now that your using a different battery? I'm convinced the first batch of batteries and phones were bad.
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Im also interested in that response
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Smallsmx3 said:
Dngen. Are you getting greater battery life now that your using a different battery? I'm convinced the first batch of batteries and phones were bad.
Sent from my SAMSUNG-SGH-I897 using XDA App
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At first I thought it was the phones that vary in battery life.
My first captivate had really good battery life. But it bricked after I tried to do the JH7 update. So I got the phone exchanged, but they used my original battery in the new captivate. For some reason my phone was draining really fast compared to my old captivate, and this was weird because both used the same battery.
This was really annoying me cause I loved this phone, but the poor battery life was ruining it for me. So I went to an AT&T store and told them how bad my battery life was. They shipped an OEM battery for free and I've found a new battery to significantly work better than the old one
Hmmm. I just got a replacement phone and everything works better...GPS ect... but the battery was the same as it is now.....10-12 hours. I've been thinking about getting another battery but I don't know if that will fix the problem. I guess I will try to anyway.
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Smallsmx3 said:
Hmmm. I just got a replacement phone and everything works better...GPS ect... but the battery was the same as it is now.....10-12 hours. I've been thinking about getting another battery but I don't know if that will fix the problem. I guess I will try to anyway.
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How long have you had your replacement phone? I know my battery life got better after a few days with my original captivate
I got my replacement phone about a week ago...I've been trying to drain and charge to make sure the system is getting a good read....I've had the battery since launch...the only time I got great battery life was when I used unhelpfuls undervolting and the first time I flashed jh7. I have only flashed one rom on my new phone. It just bothers me that it drains 5-6% an hour in idle. I don't have any Widgets and the only thing that is updating is email once an hour
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I think I might have caught a break....on my fourth day of charging and draining and I'm at 16 hrs with. 27% left. I guess ill continue with the whole charge and drain thing for the next couple of days.
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I somehow doubled my battery life. After draining and charging the last few days I managed to go from 12 hrs to 24 hrs of battery life while using it the same amount as before. I have had had my phone since launch and battery life sucked. I don't know it its because I got a refurbished phone that did it or what. I flashed my old phone almost every day for awhile. Even when I didn't flash I couldn't get it to last.
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Have you guys seen this thread?
http://forum.xda-developers.com/showthread.php?t=806211
Good stuff, thanks
I've seen it and read most of the battery threads out there. I've come to the conclusion that: 1. There's a bad batch of phones out there that cause battery drain issues or 2. Since most of us ATT android users are new were unaware of the proper procedure to flash roms. I believe the second to be more true since most of the batterry drain issues happen due to flashing new roms according to most of the threads I've read. I would like to see the percentage of people out there who are still running there cappys stock with never Modding or flashing to see what type of battery life they are getting.
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Before rooting, sideloading and flashing unhelpful kernel I was getting the same battery life, 10-15 hours depending on use. The only thing unhelpful seemed to help with was my idle usage, about 1%/hour. I still need to tinker with the kernel and try wiping my bat stats. My phone reports the battery is at 5% but when I shut it off and plug it in it's more like 30% lol
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I had the same issue. Charge until full. Turn off and charge full... turn on and repeat. Erase battery stats via CW. The key is to let it die. Do not charge your battery until it dies....once it died I plugged it in and turned it on. If its at 1% then just let it charge completely. If its at 30% then you need to unplug and let it die again. Keep doing this until its at 1% when u plug it in. If you have to do the latter you have to start the process over again and erase stats and drain and fill the batterry. From here on out anytime you flash a rom make sure your phone is at 100%. Always let the phone die before charginging it the first time. I think the android system has to get a read of the batterry.
I think at some point along the way I charged my phone when it was at 30% after a flash so anytime after when my battery was dying I still really had 30% battery left but android was telling me my phone had no juice.. let me know if this works for you....
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for the past 3 days, this is what it does after just a random reboot. This was from this morning. *A huge drop in battery life*.
Now granted, have charged it a few times just until i can get to a moment where I can charge it fully without unplugging it.
Just for my own clarification, do you see the huge drop in battery power after the sudden reboot? If so, I'm wondering if the battery isn't bad, telling the phone it doesn't have a charge, and the phone shuts down/reboots.
Was anything done to the phone prior to this problem (new ROM, new kernel, rooted, etc.) other than calibrating the battery? What were you using to calibrate?
stephen_w said:
Just for my own clarification, do you see the huge drop in battery power after the sudden reboot? If so, I'm wondering if the battery isn't bad, telling the phone it doesn't have a charge, and the phone shuts down/reboots.
Was anything done to the phone prior to this problem (new ROM, new kernel, rooted, etc.) other than calibrating the battery? What were you using to calibrate?
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My bad on the unclear post. Rushing, multitasking not working...lol. Yeah that's what i'm referring to. I edited the op.
Not sure why it does that. I'm using the battery calibrator from the market. I did install a new ROM a few days ago.
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digitallure said:
My bad on the unclear post. Rushing, multitasking not working...lol. Yeah that's what i'm referring to. I edited the op.
Not sure why it does that. I'm using the battery calibrator from the market. I did install a new ROM a few days ago.
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Lol, no worries, I was barely into my first cup of coffee. What ROM did you install? Any chance of using a different battery to see if it's the battery or possibly an issue with the phone ir the ROM?
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stephen_w said:
Lol, no worries, I was barely into my first cup of coffee. What ROM did you install? Any chance of using a different battery to see if it's the battery or possibly an issue with the phone ir the ROM?
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LOL. I flashed the Octane rom by raver. I don't have another battery to test it out, but It's happened a couple times with different roms. Usually when I calibrate, on a full charge at 4.2v, I wipe the stats about 2x's in cwm, then calibrate with the app, then unplug then plug again to boost it back to 4.2v then calibrate again. All of this just to make sure it's calibrated. may be overkill.
digitallure said:
LOL. I flashed the Octane rom by raver. I don't have another battery to test it out, but It's happened a couple times with different roms. Usually when I calibrate, on a full charge at 4.2v, I wipe the stats about 2x's in cwm, then calibrate with the app, then unplug then plug again to boost it back to 4.2v then calibrate again. All of this just to make sure it's calibrated. may be overkill.
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I hear ya. I usually do that two or three times, too. All calibration does is, like you said, wipe the stats. The reboot is weird, though, as it's followed by that sudden drop in battery. Could be the battery is faulty. I wish I had more insight to help you.
stephen_w said:
I hear ya. I usually do that two or three times, too. All calibration does is, like you said, wipe the stats. The reboot is weird, though, as it's followed by that sudden drop in battery. Could be the battery is faulty. I wish I had more insight to help you.
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No problem. That's the jist of it...lol
Heyy after calibrating the battery how long does it usually take to see the effects of extra battery life?
I've seen varying answers on that ranging from 1 day to a few days. A lot of calibrate after flashing a new ROM, so that might add a bit of time as the system rebuilds caches and whatnot. I would think that you would only need to do the full calibration once before starting to see the effects.
I usually do the calibration then go through letting it (almost) fully die, then do a full recharge 2 or 3 times.
stephen_w said:
I've seen varying answers on that ranging from 1 day to a few days. A lot of calibrate after flashing a new ROM, so that might add a bit of time as the system rebuilds caches and whatnot. I would think that you would only need to do the full calibration once before starting to see the effects.
I usually do the calibration then go through letting it (almost) fully die, then do a full recharge 2 or 3 times.
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Thank you very much sir. So I should just put brightness to max, connect wifi, and turn on as many apps as i can before it almost dies, then turn back to normal and charge to 100?
xxjhnxx said:
Thank you very much sir. So I should just put brightness to max, connect wifi, and turn on as many apps as i can before it almost dies, then turn back to normal and charge to 100?
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I don't do anything different when I let it die. I just let it happen through normal use. I guess if you wanted to accelerate it, that would work.
I'm not an expert in battery, but it looks to me like you're putting alot of stress on your battery from the constant wiping, calibrating, and letting it die. I'm not sure but i heard that letting it die too often is a bad thing. Have you tried calibrating it and just use it like normal?
Well err. I just calibrated my battery but it's still going down quickly. I lose like 5% battery in less than 10 minutes
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Note: I searched the forum and saw nothing like my issue, if there is then I missed it and I apologize.
So here is the issue. When charging it gets to between 85-90% then immediately jumps to 100%. Have tried clearing the stats, draining, then full charge. Any suggestions on this?
How old is the battery are you charging USB or AC?
Most likely its a old battery
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virusmonk3y said:
Note: I searched the forum and saw nothing like my issue, if there is then I missed it and I apologize.
So here is the issue. When charging it gets to between 85-90% then immediately jumps to 100%. Have tried clearing the stats, draining, then full charge. Any suggestions on this?
Click to expand...
Click to collapse
very odd, I've actually experienced the inverse. Charge would hold at like 20% and then jump to 10% in a second. Are you noticing in use there is a jump back down i.e. when you unplug, does it jump from 100% straight to 90% or does this just happen when charging. If it just happens with charging, I'd say run current widget and see how much mA is left when it makes the jump to 100% and see if the battery is actually charging correctly. In other words, if you're charging and the battery jumps from 90 to 100 and you still have like 200 mA left, something is goofy with your battery and I'd recommend a new battery or at the very least full wiping and reflashing your ROM.
If it jumps and the remaining mA is like 30 or something low, then the actual battery seems to be fine and I'd recommend a full wipe and reflash the rom you're using. In all honestly, it's probably the battery and may just be worth getting a new one.
virusmonk3y said:
Note: I searched the forum and saw nothing like my issue, if there is then I missed it and I apologize.
So here is the issue. When charging it gets to between 85-90% then immediately jumps to 100%. Have tried clearing the stats, draining, then full charge. Any suggestions on this?
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Click to collapse
Im not attacking you im just trying to clarify. Are you saying it jumps to 100%, meaning you see it say 100% or are you referring to the led going green at about 90%?
I'm not convinced it is a battery issue... I've only very recently rooted my phone (have had it for 11 months) and haven't had the charge indicator jump past the last 10% like it did just today.
Looking at the last 26hours of history (ICS 3.0.0 install), the initial battery discharge showed normal taper from 100-85%, however on charge it jumped from somewhere just below 90% to 100% instantaneously.
I should have taken a screenshot, but instead I wiped the battery stats and am in the initial discharge cycle still. I've had the phone 11 months and have never cleared the battery stats before.
Maybe 8 months old.
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Darunion said:
Im not attacking you im just trying to clarify. Are you saying it jumps to 100%, meaning you see it say 100% or are you referring to the led going green at about 90%?
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When it hits 85-90% the led turns green then it shows 100% right after that.
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virusmonk3y said:
When it hits 85-90% the led turns green then it shows 100% right after that.
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the led is supposed to go green at 90% to indicate trickle charge mode. but ya that should not be triggering the 100%. are you using a battery mod that isnt included with the rom?
virusmonk3y said:
When it hits 85-90% the led turns green then it shows 100% right after that.
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Run the battery down until the phone dies. I have had this happen to me before. When I got down to 1%, it took a really long time for the phone to die. Recharging and doing a couple of long cycles of letting the battery go down to a really low level before charging fixed it. Do not delete battery stats as it does no good.
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fernandezhjr said:
Run the battery down until the phone dies. I have had this happen to me before. When I got down to 1%, it took a really long time for the phone to die. Recharging and doing a couple of long cycles of letting the battery go down to a really low level before charging fixed it. Do not delete battery stats as it does no good.
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Did that already, stated that in OP
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Darunion said:
the led is supposed to go green at 90% to indicate trickle charge mode. but ya that should not be triggering the 100%. are you using a battery mod that isnt included with the rom?
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Click to collapse
No mod on the battery.
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virusmonk3y said:
Did that already, stated that in OP
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You stated in the op you cleared battery stats. I specifically mentioned trying the process without clearing battery stats and doing some additional cycles without clearing.
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fernandezhjr said:
You stated in the op you cleared battery stats. I specifically mentioned trying the process without clearing battery stats and doing some additional cycles without clearing.
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Indeed. I did that twice actually
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virusmonk3y said:
Indeed. I did that twice actually
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Well if calibration processes fail to correct it, then I would suspect a bad battery.
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You might try an app called Battery Calibration. Found here http://forum.xda-developers.com/showthread.php?t=1024867
I don't necessarily use it to calibrate but to monitor the mV. It might help in seeing if it is in fact a bad battery or if your battery indicator is showing a false reading.
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jp2132 said:
You might try an app called Battery Calibration. Found here http://forum.xda-developers.com/showthread.php?t=1024867
I don't necessarily use it to calibrate but to monitor the mV. It might help in seeing if it is in fact a bad battery or if your battery indicator is showing a false reading.
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Yea I tried that after the normal calibration. Another weird thing is my phone has been sitting at 1% for like an hour.
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virusmonk3y said:
Yea I tried that after the normal calibration. Another weird thing is my phone has been sitting at 1% for like an hour.
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Go back and read my first post. I told you this would happen.
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fernandezhjr said:
Go back and read my first post. I told you this would happen.
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The sitting at 1% was happening before. Just never really payed attention to it. Have tried the normal calibration twice now and the method you mentioned as well. Going to ATT tomorrow and see about exchanging the battery. Will post results.
Edit: Want to add a thanks for all the suggestions from everyone.
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virusmonk3y said:
The sitting at 1% was happening before. Just never really payed attention to it. Have tried the normal calibration twice now and the method you mentioned as well. Going to ATT tomorrow and see about exchanging the battery. Will post results.
Edit: Want to add a thanks for all the suggestions from everyone.
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Then it may be that time. I got my battery to hold out a little longer, but soon after, I started getting bad drain. I recently replaced my battery and haven't had issues since.
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virusmonk3y said:
The sitting at 1% was happening before. Just never really payed attention to it. Have tried the normal calibration twice now and the method you mentioned as well. Going to ATT tomorrow and see about exchanging the battery. Will post results.
Edit: Want to add a thanks for all the suggestions from everyone.
Sent from the internets
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Click to collapse
Sounds more like a battery calibration issue than a battery issue.
Give it a bit of thought... from 90% it skips to 100% when charging. However at 1% it camps out for an hour or more before shutting off. This indicates an issue with how the charge of the battery is being measured/expressed...
Now let's think about what is happening behind the scenes. This measure of charge is "defined as the available capacity expressed as a percentage of some reference, sometimes its rated capacity but more likely its current (i.e. at the latest charge-discharge cycle) capacity but this ambiguity can lead to confusion and errors. It is not usually an absolute measure in Coulombs, kWh or Ah of the energy left in the battery which would be less confusing. "
Essentially, the way the phone is measuring the battery isn't working correctly. However, is the duration of the battery life what you would expect given your use of it?
If YES, then it's a measuring issue.
Hello,
I am trying to install some custom ROMS onto my phone and I just found one that I want to use. But I did read something that you should recalibrate your battery after installing custom ROMS. Is this true?
And my 2nd question is how to do this. Because I found an app: "Battery Calibration", but I don't know if this will do the trick. I know you can calibrate the battery with Clockwork too, but is this the same as the app?
Thanks in advance
Mathi
The purpose of recalibrating the battery is too get an accurate estimate of battery life. When you switch roms the processor usage changes. Your cell phone doesn't recognize this though and continues to estimate according to the old ROM usage.
I don't know about the apps, i've always done it the manual way.
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battery Cal.
this app works if you follow the 3 steps, charge to 100% then calibrate it unplug your phone then let it discharge fully then when you recharge it don't unplug it until it hit 100% for the second time then you should notice a slight improvement in your phones battery life i am sure the app and cwm method are similar, but with this app you should have no problem its really easy to use, hope this helped, happy tweakin
Hans5849 said:
The purpose of recalibrating the battery is too get an accurate estimate of battery life. When you switch roms the processor usage changes. Your cell phone doesn't recognize this though and continues to estimate according to the old ROM usage.
I don't know about the apps, i've always done it the manual way.
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How do you do it manually? Let it complete drain out and fully charge ?
From the recovery menu.
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All sources have said that Battery Calibration is reliable.
Also keep in mind that with Li batteries, every time the battery dies, its life is shortened by a small amount; therefore, every time you drain it completely, you're actually losing a little bit of battery life.
Other than that, I would be that Google can pull up quite a few results.
According to Google dev blog, wiping batterystats.bin is unnecessary and is in fact useless. You can Google for the link....
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everytime i flash a rom also never do the battery calibration,it is necessary?
weiloon1234 said:
everytime i flash a rom also never do the battery calibration,it is necessary?
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Click to collapse
Not necessary at all, when you charge your battery 100% its already calibrated (status refreshed)
I've been using the battery calibration app ever since I started flashing ROMs and have done it every time I flash a new ROM. Can honestly say I notice a difference. Not always immediately as its advised to do a couple of full drain recharges before assessing your battery life
hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?
Get your phone to 100% battery and then just play whatever you like until it completely dies. Then, plug it in to charge and dont touch it until it gets back up to 100%. That is supposed to increase the battery lasting time by 20%. It only works once...so dont do it 5 times hoping for results. This is supposed to be done when you first get the phone, but if its never been you've never done it, its worth the shot.
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rygtuu said:
hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?
Click to expand...
Click to collapse
Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.
lumin30 said:
Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.
Click to expand...
Click to collapse
Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats. If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
By this time, the day is over and it needs to be charged anyways. I plug it into the charger before bed and let it charge up all the way with nothing running (no wifi, no bt, no background apps running).
After that charge, battery life seems soo much better. ymmv. it would be good to know if that works for you too.
Otherwise, everyone uses their phone differently, and some people install stupid apps that have intensive background services running that eat batteries, then complain about the rom sucking instead of introspecting about how they use their phone.
bhundven said:
Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats.
Click to expand...
Click to collapse
Just to clarify - battery stats file have nothing to do with battery performance and the battery stat file "is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point)." Google Engineer Dianne Hackborn
ahh ok thanks guys ill do what you guys said and see if it helps
you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.
mike-y said:
you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.
Click to expand...
Click to collapse
These arent as helpful as they use to be. I have seen and challenged people to run with and without and the added battery life is either very minimal or actually worse with these apps.
Battery saver apps where created when android was very young and had bad management of the battery power. The way it works now it should lower the power to the radios low enough to save battery but not completely shut off the radios. Shutting them off will actually harm battery life because it takes so much more power to turn them on and off repeatedly then to let them idle.
no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
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Download Gemini from the play store and manage the autorun for apps. That's what I do and it saves quite a bit of battery
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solrac1212 said:
no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
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Ill agree with you on froyo but gingerbread towards the end was much better.
The biggest thing is people dont realize how much power is used to start and stop things. Letting them idle will use battery but not nearly as much if you start and stop many times a day. Now at night if you want to turn off those things then yeah go for it. But if you are a frequent phone checker then starting and stopping them everytime will chew through the battery.
A good example is this, its summertime go outside and look at your electric meter when the ac first turns on. It will spin reeal fast for a minute or so while the system gets everything going then it will slow down. This same thing applies to your phone and its radios. Each time you shut it off it has to go through a process so you dont get corrupted data. And when you turn it on it has to use a lot of battery to make sure things dont get messed up and get to the proper operating form.
So any app that shuts off the radios manually and such will end up costing you battery if you are a power user.
If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
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thomas.raines said:
If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
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Click to expand...
Click to collapse
I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.
justiz33 said:
I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.
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Music soaks up a lot of battery as well as display, data, and sync. You can try turning off sync and data when you don't need them. But it sounds like you are doing better. I am still concerned with what else you have running in the background though... however, 12-16 hours isn't bad at all...
Sent from my SGH-I727 using xda app-developers app
bhundven said:
.... If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
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What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?
HKSpeed said:
What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?
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Yes, as well as /system/ and at least .android_secure on your microSD
I would recommend against fully discharging your battery as a matter of course. While this might have been useful in the days of NiCads, deep discharges and heat are the Kryptonite of LiIon batteries.