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I've seen other threads, but I didn't like the answers. If I am going to load CM6.1 RC1 tonight, when should I wipe battery stats?
Great question. Was going to post this today as well. Since I got the extended battery yesterday from sprint.. so anyways I drained treatment battery instead of charging fully.. then I charged fully and did treatment HTC battery tweak.. then I wipe battery stats and turned on.. now will it fully charge my extended battery since I deleted stats and its been fully charge (I hope so.. 11 hours at 45%) and I drain it till its dead..?
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I wiped at full charge. Let it drain all the way until phone shuts down. Recharge fully (do not unplug).
I'm at 35% on 18h and 36m.
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You'll know when you need to wipe battery stats because you'll see some wild sht. For example: if your battery is at 55% and you need to flash something. You go into recovery, flash it, reboot and your battery is now at 87%, you need to wipe. Its best to wipe when you flash a new rom or kernel; just to keep everything fresh.
ms79723 said:
You'll know when you need to wipe battery stats because you'll see some wild sht. For example: if your battery is at 55% and you need to flash something. You go into recovery, flash it, reboot and your battery is now at 87%, you need to wipe. Its best to wipe when you flash a new rom or kernel; just to keep everything fresh.
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Follow this tip here, you may not need to do it every time.....but i recommend doing it maybe once every three times you flash a rom out. And if you restore, i would just wipe batt. stats at the same time of wipe data/factory reset.
Should have clean battery label. But like another post said, to extended battery life....you may want to follow his tip too.
The only issue I have is, when you reset battery stats you have to boot into recovery, right? When booting into recovery it uses some battery, so it won't be fully charged anymore. Am I incorrect in this thinking?
Its less battery power then you think, its not like a whole boot cycle off then off a few minutes later, so it will be fine.
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Could someone explain to me the HOW, WHY, and WHEN you would use this in bootloader?
My battery is sucking hard ever since the latest update of MIUI and i'm hoping this might help if it's used how i think it might be used.
If your battery is losing charge quicker than normal, check if it's the kernel you're using with MIUI and try an alternative. Otherwise, wiping battery stats is like a recalibration to more accurately reflect battery charge. Charge battery to capacity, boot into recovery, wipe batt stats, then reboot, take off charger and run down battery until empty. That should reset your stats.
mizzos4 said:
If your battery is losing charge quicker than normal, check if it's the kernel you're using with MIUI and try an alternative. Otherwise, wiping battery stats is like a recalibration to more accurately reflect battery charge. Charge battery to capacity, boot into recovery, wipe batt stats, then reboot, take off charger and run down battery until empty. That should reset your stats.
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Should i run it down as quick as possible (ie. Full brightness, playing movie, LED flashlight on, ect...) or run it down with normal use?
Neipas09 said:
Should i run it down as quick as possible (ie. Full brightness, playing movie, LED flashlight on, ect...) or run it down with normal use?
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Doubt it matters.
Another thing you can do for your battery is a full charge and run down till it dies 3 times. These are "smart" batteries and will reset that and might help you get more from it.
Also remember when flashing a new rom/kernel combo give your phone some time to adjust before judging battery life (maybe 2-3 days).
CCallahan said:
Doubt it matters.
Another thing you can do for your battery is a full charge and run down till it dies 3 times. These are "smart" batteries and will reset that and might help you get more from it.
Also remember when flashing a new rom/kernel combo give your phone some time to adjust before judging battery life (maybe 2-3 days).
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lithium ion batteries have no memory....
iitreatedii said:
lithium ion batteries have no memory....
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The batteries in these phones have a memory in the form of a charge monitor circuit. Those circuits remember the charge state of the battery and report it to the phone. This is why it is called a "smart" battery because of the chip that holds this data.
Li-Ion batteries do not suffer from traditional "battery memory" by way of crystal growth and the like (such as with NiCd batteries), but the circuit WILL remember the charge state over time due to the fact that it compensates for the voltage output droop which naturally occurs over time.
The procedure I posted previously was recommended to me by the battery manufacturer to extend battery charge over time.
Hey what's up. I got this G2 with the latest cm7, which is build number 21 and the battery life is horrible. Like 8 hours with an hour of the display being on. I'm coming from the Epic which had pretty good battery life once calibrated.
So what's the proper way of calibrating the G2? I am using the stock kernel that comes with the Cm7 rom right now but I did try the pershoot kernel couple times and underclocked it but it still didn't help. I think all that kernel flashing messed up my battery life. So any ideas? Thanks!
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saywhat4118 said:
Hey what's up. I got this G2 with the latest cm7, which is build number 21 and the battery life is horrible. Like 8 hours with an hour of the display being on. I'm coming from the Epic which had pretty good battery life once calibrated.
So what's the proper way of calibrating the G2? I am using the stock kernel that comes with the Cm7 rom right now but I did try the pershoot kernel couple times and underclocked it but it still didn't help. I think all that kernel flashing messed up my battery life. So any ideas? Thanks!
Sent from my HTC Vision using Tapatalk
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Charge your phone all the way to 100% (not just until the LED turns green, which is around 90%), unplug and boot into recovery, wipe battery stats, boot back into Android and use your phone until the battery drains and your phone shuts off. Keep trying to power up until it won't any more.
Now, plug your phone in (into the wall, not a computer) and charge until full *without* turning it on. Remember, the LED turns green around 90% so you'll need to leave it another few hours after the LED changes. Once you're full, unplug and boot into Android and again use it until the battery is fully drained and you can't power up anymore and you're good to go.
Remember, after wiping stats, during the draining process *do not* plug it in to the charger or your computer as thiss will mess up the calibration.
Its a pain, and takes a day or so, but its worth it. To speed up the draining process, do some process intensive things (video watching, game playing, etc.)
Sent from my T-Mobile G2 using XDA App
OriginalGabriel said:
Charge your phone all the way to 100% (not just until the LED turns green, which is around 90%), unplug and boot into recovery, wipe battery stats, boot back into Android and use your phone until the battery drains and your phone shuts off. Keep trying to power up until it won't any more.
Now, plug your phone in (into the wall, not a computer) and charge until full *without* turning it on. Remember, the LED turns green around 90% so you'll need to leave it another few hours after the LED changes. Once you're full, unplug and boot into Android and again use it until the battery is fully drained and you can't power up anymore and you're good to go.
Remember, after wiping stats, during the draining process *do not* plug it in to the charger or your computer as thiss will mess up the calibration.
Its a pain, and takes a day or so, but its worth it. To speed up the draining process, do some process intensive things (video watching, game playing, etc.)
Sent from my T-Mobile G2 using XDA App
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Thanks for the tip. Now I have been doing some reading and saw some people recommended charging the phone while it is on when it is fully discharged the first time. You recommend while its off? Does it make a huge difference?
saywhat4118 said:
Thanks for the tip. Now I have been doing some reading and saw some people recommended charging the phone while it is on when it is fully discharged the first time. You recommend while its off? Does it make a huge difference?
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I don't think it would make that big of a difference; if you think about it though, you're dealing with the battery and battery only if the system is turned off.
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True we are dealing with the battery but when we wipe the battery stats I think it only wipes the battery information the phone had in its system. So if we wiped the stats when it is full then let it discharge till completely empty, im assuming, you would have to charge it while its on so the phone can now learn what the battery level is and when its full and its capacity. I'm just guessing I could be wrong though. I'm just going to try both and see what happens.
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OriginalGabriel said:
Charge your phone all the way to 100% (not just until the LED turns green, which is around 90%), unplug and boot into recovery, wipe battery stats, boot back into Android and use your phone until the battery drains and your phone shuts off. Keep trying to power up until it won't any more.
Now, plug your phone in (into the wall, not a computer) and charge until full *without* turning it on. Remember, the LED turns green around 90% so you'll need to leave it another few hours after the LED changes. Once you're full, unplug and boot into Android and again use it until the battery is fully drained and you can't power up anymore and you're good to go.
Remember, after wiping stats, during the draining process *do not* plug it in to the charger or your computer as thiss will mess up the calibration.
Its a pain, and takes a day or so, but its worth it. To speed up the draining process, do some process intensive things (video watching, game playing, etc.)
Sent from my T-Mobile G2 using XDA App
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I have used this method to calibrate the battery and can say that it does have a pretty big impact on battery life. +/- 20% in my case. I also find that I need to re-calibrate roughly once every month or so.
To be clear, there is not such thing as "calibrating the battery", you are calibrating the battery meter (volt meter) on the phone. Maybe its just a semantic distinction, and that is what the OP and subsequent replies are talking about. But many people get this confused, due to the old process of "conditioning" NiCad batteries, which is not applicable to modern cell phone (Li ion) batteries.
In my understanging, you aren't going to increase battery life by doing any of the above, but only making the battery meter more correctly read how much power is left. For instance, if the meter is not properly calibrated, it may read lower than it should. So people think they are increasing their battery life.
I would discourage from discharging the battery to empty. Over discharge of Li ion batteries can possibly (not often, but in a small percentage of cases) prevent the battery from taking a charge. There is a safety circuit which is supposed to prevent over discharge, but it does not always work. Therefore, Li ion batteries should not be discharged lower then 20% whenever possible. Most of us do it from time to time on accident, but there is not reason to do it intentionally. Charge the battery to 100%, drain to 20%, and repeat a couple times. This will get your battery meter plenty accurate. Draining it to empty does not really gain you anything (the battery meter is not that accurate in the best of circumstances, anyway), and can harm the battery.
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
Flashing a new ROM resets the battery meter. So until its properly calibrated, it will give you junk readings. This is one reason why people often jump the gun and think that a custom ROM is getting them poor battery life. Calibrate the meter, and use the ROM for a couple days, then you should get a real indication of what the battery life is like on that ROM.
redpoint73 said:
I would discourage from discharging the battery to empty. Over discharge of Li ion batteries can possibly (not often, but in a small percentage of cases) prevent the battery from taking a charge. There is a safety circuit which is supposed to prevent over discharge, but it does not always work. Therefore, Li ion batteries should not be discharged lower then 20% whenever possible. Most of us do it from time to time on accident, but there is not reason to do it intentionally. Charge the battery to 100%, drain to 20%, and repeat a couple times. This will get your battery meter plenty accurate. Draining it to empty does not really gain you anything (the battery meter is not that accurate in the best of circumstances, anyway), and can harm the battery.
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I was about to post this. Letting a LiIon discharge all the way is more harmful to the battery than recharging it mid drain cycle.
I'm having a bit of battery issues, I haven't flashed a ROM or calibrated my battery meter. So I charge my phone to full while still on, unplug it and drain it until it turns off (NOT until the battery is completely drained, which could potentially damage the battery), plug it up and let it charge while off, and I should be calibrated?
Do you need to have root to be able to reset battery stats?
Sent from my T-Mobile G2 using XDA App
When wiping battery stats it is best to get the device as charged as you can. I imagine that as with other devices you can do what is known as bumping by charging with the device on until it says fully charged and then turn it off and unplug and then replug until the led turns green again. (then repeat the process by turning on and unplugging and replugging) however, I don't recommend it because overcharging the battery will reduce the overall longevity of the battery. With that in mind it is possible that the battery on the kindle is designed to only charge to 94% in order to prevent overcharging and thereby increasing the life of the battery. In conclusion since you are running gedeROM and are able to see the battery percentage which you don't get to see when you have the stock UI, there is probably nothing wrong with your device, you just have a ROM that doesn't know any better than to tell you the truth which is that the battery is only 94% charged.
it's a misconception that wiping battery stats actually corrects the battery level, or allows your device to charge more. The stats are wiped everytime you charge your device, and as such battery "calibration" apps, don't actually do jack squat. nschiwy is right, it's only going to 94% for a reason, and unless you really want to charge to 100%, you shouldn't need to. Bump charging is the best method for this, as stated before.
Now for curiosity's sake, I believe you can go into TWRP recovery, and either advanced menu or settings menu, then wipe battery stats. Don't quote me on that, I can't remember at present, but that's how you would go about it.
Hi, i wanna know whats the best way to wipe my nitro and whats the order
i usually do it like this:
1. wipe factory reset
2. wipe cache
3 wipe datvilk
and thats it
i saw many option like wipe battery statts and fix permission so when i have to do that?
thanks in advance!
radhames562 said:
Hi, i wanna know whats the best way to wipe my nitro and whats the order
i usually do it like this:
1. wipe factory reset
2. wipe cache
3 wipe datvilk
and thats it
i saw many option like wipe battery statts and fix permission so when i have to do that?
thanks in advance!
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That is the right way to wipe your phone... Battery stats wiping is done when you want to re calibrate the battery (mostly done with battery life isnt that good as experienced by other users)
salimbaba said:
That is the right way to wipe your phone... Battery stats wiping is done when you want to re calibrate the battery (mostly done with battery life isnt that good as experienced by other users)
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From what I understand, calibrating the battery does little to no good; and wiping battery stats should just reset the battery consumption stats. Same thing as a full charge does I believe.
lordcheeto03 said:
From what I understand, calibrating the battery does little to no good; and wiping battery stats should just reset the battery consumption stats. Same thing as a full charge does I believe.
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i believe that is a myth created because people wipe battery stats but don't perform the rest of the steps for calibration.
You are supposed to wipe battery stats when the battery has a full charge.
then you let it completely die.
then you charge it back to 100%
when im doing mine to make the process fast, i just wait till a night where my phone is fully charged, then i go into CWM and wipe the battery stats. then i boot up the phone and open a long movie file (2-3) hours preferably. this will drain your battery fast. I run the movie file and restart it when it ends until the phone dies (dont turn it off at 1% let it die).
this is where the calibration comes in. when your phone is not calibrated right you will notice it sits at 1% for 15-20 minutes even while playing a movie. once the phone dies.
i plug it into the charger and let it charge with the phone OFF, overnight. this will allow it to trickle charge to maximum charge. when you wake up in the morning your phone is fully calibrated. you will notice that it will actually stay at 100% for a few minutes after boot. this means its calibrated properly. (if you have an old battery it might not sit at 100% long, but it should atleast read 100% when the phone is booted. a poorly calibrated battery will read somewhere between 95%-98% after booting up from a full charge.
at least this is my experience with it.
i have done this alot because i used to have to use 3 batteries and calibrate them all. I ended up throwing out one because it was never holding a proper charge and i use my 2nd best battery for backup now and i stick with the one that holds the best charge.
*edit* a side note the one that doesn't hold a charge is because i had the phone in the sun one day and it overheated. overheating is the worst thing for a li-on battery (or most batteries at that).
side note: if battery calibration was a myth then every phone manufacturer wouldn't have warnings about how to perform 1st charge. remember they always tell you, let the phone fully die, then fully charge it while off. They tell you that becuase it is part of properly setting the battery stats.
I am not an expert on all this but i have read a bunch of threads by experts, and the proof is in the pudding... my battery life has steadily increased since i started following that advice.
---------- Post added at 08:38 PM ---------- Previous post was at 08:30 PM ----------
i believe people say calibration doesn't work becuase they wipe their battery stats then they dont let it die properly. This is actually counter productive and tricking your phone into thinking your battery is dead before it is. then people actually get worse batterly life and conclude that wiping stats doesn't do anything. also if you didn't fully charge it would trick your phone into stopping a charge early (because overcharge causes battery damage).
improperly done you would end up with a battery that does not fully charge and tells you its dead before it actually is.
^ not an ideal situation.
KronicSkillz said:
i believe that is a myth created because people wipe battery stats but don't perform the rest of the steps for calibration.
You are supposed to wipe battery stats when the battery has a full charge.
then you let it completely die.
then you charge it back to 100%
when im doing mine to make the process fast, i just wait till a night where my phone is fully charged, then i go into CWM and wipe the battery stats. then i boot up the phone and open a long movie file (2-3) hours preferably. this will drain your battery fast. I run the movie file and restart it when it ends until the phone dies (dont turn it off at 1% let it die).
this is where the calibration comes in. when your phone is not calibrated right you will notice it sits at 1% for 15-20 minutes even while playing a movie. once the phone dies.
i plug it into the charger and let it charge with the phone OFF, overnight. this will allow it to trickle charge to maximum charge. when you wake up in the morning your phone is fully calibrated. you will notice that it will actually stay at 100% for a few minutes after boot. this means its calibrated properly. (if you have an old battery it might not sit at 100% long, but it should atleast read 100% when the phone is booted. a poorly calibrated battery will read somewhere between 95%-98% after booting up from a full charge.
at least this is my experience with it.
i have done this alot because i used to have to use 3 batteries and calibrate them all. I ended up throwing out one because it was never holding a proper charge and i use my 2nd best battery for backup now and i stick with the one that holds the best charge.
*edit* a side note the one that doesn't hold a charge is because i had the phone in the sun one day and it overheated. overheating is the worst thing for a li-on battery (or most batteries at that).
side note: if battery calibration was a myth then every phone manufacturer wouldn't have warnings about how to perform 1st charge. remember they always tell you, let the phone fully die, then fully charge it while off. They tell you that becuase it is part of properly setting the battery stats.
I am not an expert on all this but i have read a bunch of threads by experts, and the proof is in the pudding... my battery life has steadily increased since i started following that advice.
---------- Post added at 08:38 PM ---------- Previous post was at 08:30 PM ----------
i believe people say calibration doesn't work becuase they wipe their battery stats then they dont let it die properly. This is actually counter productive and tricking your phone into thinking your battery is dead before it is. then people actually get worse batterly life and conclude that wiping stats doesn't do anything. also if you didn't fully charge it would trick your phone into stopping a charge early (because overcharge causes battery damage).
improperly done you would end up with a battery that does not fully charge and tells you its dead before it actually is.
^ not an ideal situation.
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I was just putting that out there. I personally have attempted calibrating my battery like you say to do; calibrate on full charge, drain all the way, then fully charge while powered off... I haven't noticed any benefits whatsoever. I've always been able to charge to 100% and I assume that with my chronic ROM flashing and bad charging habits that if it were required, I would have noticed some kind of negative issues by now. CM9/ICS is still better on battery than CM10 or any of its variants could ever dream to be. I got my Nitro in December of '11 and I've been abusing my battery with reckless abandon ever since...
lordcheeto03 said:
I was just putting that out there. I personally have attempted calibrating my battery like you say to do; calibrate on full charge, drain all the way, then fully charge while powered off... I haven't noticed any benefits whatsoever. I've always been able to charge to 100% and I assume that with my chronic ROM flashing and bad charging habits that if it were required, I would have noticed some kind of negative issues by now. CM9/ICS is still better on battery than CM10 or any of its variants could ever dream to be. I got my Nitro in December of '11 and I've been abusing my battery with reckless abandon ever since...
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...... these batteries are actually supposed to work better over time for a few years and i know cm10 is bad on battery whats your point...
KronicSkillz said:
...... these batteries are actually supposed to work better over time for a few years and i know cm10 is bad on battery whats your point...
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Lay off the Kronic, man and follow the story. But seriously; you were saying that the thought that battery calibration doesn't do anything is only because most people don't follow the proper procedure. I was just pointing out that I abuse my battery to no ends and have only ever calibrated it once or twice using that procedure and have yet to see any ill effects from my rampant disregard for the battery without semi-regular calibrations; and that I never noticed any effect whatsoever from the calibrations. Just carrying on a discussion; or are forums not meant for that?
I would add wipe /system to that list, since we re talking about FULL wipe.
Oh and yea ... wipe battery stats is the least of your concern, i keep reading it doesnt do anything ... also tried doing it manually by removing the battery (its a whole procedure in a post i read) and i didnt see any difference, well obviously it will never affect the way your ROM reacts or works, even for the battery %.
just1nsama said:
I would add wipe /system to that list, since we re talking about FULL wipe.
Oh and yea ... wipe battery stats is the least of your concern, i keep reading it doesnt do anything ... also tried doing it manually by removing the battery (its a whole procedure in a post i read) and i didnt see any difference, well obviously it will never affect the way your ROM reacts or works, even for the battery %.
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How i sipe te system?
radhames562 said:
How i sipe te system?
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Depending on what recovery you use:
CWM: Mount and storage > format system (or wipe system, same thing)
TWRP: WIPE > System
*****
So in order, FULL WIPE: Factory reset (wipe data), wipe cache, wipe dalvik cache, wipe system
just1nsama said:
Depending on what recovery you use:
CWM: Mount and storage > format system (or wipe system, same thing)
TWRP: WIPE > System
*****
So in order, FULL WIPE: Factory reset (wipe data), wipe cache, wipe dalvik cache, wipe system
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Click to collapse
Thank you! I gonna start doing it like this nos on
Even google engineer said that wipe battery stats did nothing at all, however, I do have some luck with battery calibration on other devices, and the difference is noticeable.
P930 seems to be fairly accurate on battery indicator and I haven't done a calibration yet.
the real question is are google engineer's experts on ni-mh batteries or software developement, that is the question the guide i read about it was written by a battery expert, while its possible they were just blowing smoke i have a hard time believing it does nothing. What would be more believable is that most batteries don't need calibration if they were properly calibrated on first use. All i know is i had 3 batteries going in and out of my phone for a few months and when i started doing calibration i got 4+ hours of extra battery life. It may have just been because i was swapping batteries that the calibration was messed, my only point was that if a battery does need calibration that is the method i've found that works. if it doesn't need calibration then calibration will do nothing, that is most likely why everyone says it does nothing because MOST batteries don't need calibration as that google engineer probably knows these phones and batteries do a decent job of staying calibrated. but you also can't say calibration is a myth because the facts are every battery manufacturer has a huge warning on how to properly first charge a batter (same thing as calibrate) upon first use of the phone. I would imagine they have these warnings so that people don't need to worry about calibration later. I don't know im not a battery expert, but i do know logic when i see it.
This is the G+ post by the Google engineer
https://plus.google.com/app/basic/stream/z13dgb0rksywh3muq222fzkqnwfgdbgrk04
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