So, can anyone explain to me why i'd want to clear batt stats in CWM?
What does it do?
Should i do it at almost 0% or at 100% or does'nt it matter?
You should clear your batterystats after flashing a new rom to prevent the old stats from your previous rom showing false values. It should be done when your battery is fully charged.
I use the Battery Calibration app - http://forum.xda-developers.com/showthread.php?t=1024867
Honestly, it does bugger all in my experience.
And also it shouldn't matter if you clear them before or after flashing a new rom, if it's wiped it's wiped, no?
Rusty! said:
Honestly, it does bugger all in my experience.
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Same here.
I do it sometimes if I want to, but I haven't really seen any difference. (Even back in my Milestone.
Related
Just wondering what the benefit of wiping the battery and rotate stats are?
Ive seen them for awhile under recovery but have never done them.
thnks
dont use it believe me, i just have a big issue and my battery its draining really fast just with turn off my phone, DONT USE IT!!!!!!!!!!
digitaljeff said:
Just wondering what the benefit of wiping the battery and rotate stats are?
Ive seen them for awhile under recovery but have never done them.
thnks
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Click to collapse
Not sure about rotate stats, but battery stats wipe is useful when getting a new battery or re-calibrating your old one.
from the thread where you got the recovery image:
* [Alt+3] Wipe battery stats : Wipe the battery stats in /data
* [Alt+4] Wipe rotate settings : Wipe the sensor settings in /data
Simply deletes these files. It's thought that if you fully charge, delete the battery data file, use your phone completely, recharge fully that your phone's battery stats are changed and helps battery life.
Not sure about screen rotation.... never had an issue with it. Obviously it just deletes a file which is recreated on boot.
older roms would have problems with the accelerometer working. clearing those got it to work again
sorry for digging out this old thread...
but what file will be deletet regarding the accellerometer/rotate settings?
The instructions to flash roms states that we have to fully charge our phone before flashing. Does that mean we have to bump charge to 100% or is a battery charged to 97% considered fully charged.
The full charge is a recommendation, not a requirement. Its likely your battery may not be calibrated correctly if you do not fully charge the battery first. There is a lot of complaining about a ROM killing batteries, after a flash. If you do not flash with a full battery, you should cycle the battery 3 or 4 times and/or calibrate the battery before making any observations or comments about the battery life of your ROM.
Personally when I flash a ROM I start with a odin flash to stock. Then I turn off the phone and charge to full with the phone off. Then boot into recovery, flash CWM (twice) and flash my ROM.
97% is probably fine, but keep in mind your mileage may vary.
Sent from my SAMSUNG-SGH-I897 using XDA App
not comletely true...
if the phone is already calibrated (or doesnt need it) the battery is fine
the phone ALWAYS charges to 100% then stops charging
lets the phone run on battery power down to 95%
starts charging back to 100%
so depending how quickly you unplug it after it reaches 100% it will start to run down.....
Trusselo said:
not comletely true...
if the phone is already calibrated (or doesnt need it) the battery is fine
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So ... if your battery is calibrated, and you flash a new ROM, thus obliterating the file your phone uses to retain said calibration data, you phone will still remember the calibration info?
I wish I had your phone, mine behaves quite differently.
Sent from my SAMSUNG-SGH-I897 using XDA App
I have flashed probably 60 times and have calibrated my battery about 5 - 6 times. I've had no issues with it at all.
npt1988 said:
The instructions to flash roms states that we have to fully charge our phone before flashing. Does that mean we have to bump charge to 100% or is a battery charged to 97% considered fully charged.
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It depends sometimes on the rom. Some of them charge full but don't show 100% when unplugged.
quarlow said:
So ... if your battery is calibrated, and you flash a new ROM, thus obliterating the file your phone uses to retain said calibration data, you phone will still remember the calibration info?
I wish I had your phone, mine behaves quite differently.
Sent from my SAMSUNG-SGH-I897 using XDA App
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where did i say that? read again....
dont be a F#uckin smart ass
here let me explain in easier to explain terms...
"if you just calibrated it or it doesnt need it because it is already calibrated......"
Trusselo said:
where did i say that? read again....
dont be a F#uckin smart ass
here let me explain in easier to explain terms...
"if you just calibrated it or it doesnt need it because it is already calibrated......"
Click to expand...
Click to collapse
Thanks .... that added and changed nothing about your response.
Let me slow it down a notch. I said if you flash with low battery you *may* (I used "recommendation" due to using the word "may") have a calibration issue with your new ROM, until your battery is recalibrated. (Based on many hurried flashes) I followed that up with a disclaimer that not every phone behaves the same.
You said that is untrue because your battery constantly dances between 95 and 100% when left plugged in. Just like your newest response this serves absolutely no purpose in explaining where you disagree and why.
Once more for the hearing impaired: your battery stats is a file on your phone. Still with me? Okay. When you flash a new ROM, all the files on your phone are deleted. Still there? Good, I'm glad you're keeping up. So if you delete all files, how does your phone still have that file?
So I guess there are people that have phones that magically retain the battery stats file after deleting it. I was simply saying I want one like that, because mine doesn't do that.
Use your words, without resorting to name calling or cursing, if you don't want a sarcastic response.
Sent from my SAMSUNG-SGH-I897 using XDA App
Except you're wrong. When you flash a rom it does not overwrite all files found on your phone. By running a master clear, you can clear out all system files and flash back to stock which will generate new files.
However, it is not necessary to run a master clear for all roms to be flashed. For example, I went from cognition to Paragon without running a master clear and its been a fantastic experience thus far. So, if you didnt run a master clear, your phone still retains its battery file and may take a while to learn its averages. Running a clear battery stats can help your phone learn faster.
To explain this further, take a look at a statistically normal distribution (bell shaped curve). Over time, your phone learns what 100% to 0% is an all in between. Well, over a long enough timeline, your battery starts to get closer to the average which means it will start to say that 98% is a full charge and continue to decline. Its just what happens with batteries. If you clear out this timeline, you start to generate new means. This will not restore the life of your battery but it will give your phone the ability to be more accurate about its current state.
Thank you for responding, including where you disagree.
I misunderstand what the screen and odin say when you flash. They both say they are clearing and wiping the data and cache. I almost never do a "Master Clear" from odin.
So when the ROM process says its wiping DATA, CACHE, SYSTEM etc. the respective folders on your phone aren't deleted? That is where I was getting the basis for my commemts. Along with observations when flashing ROMs. Like starting with 60%, using odin to go to stock, leaving md with half of what it said before, flashing a new ROM, and having that ROM say 80%. Then rebooting the phone to have 50%. Then plugging in and rebooting to see 80% again.
If I'm wrong I apologize. All the info I know from flashing ROMs is reading my screens, and interpreting my observations. Maybe my phone IS jacked up, it does this everytime I don't charge to full with the power off before I flash a new ROM.
Sent from my SAMSUNG-SGH-I897 using XDA App
I didn't charge to full before I flashed either. I'm not an expert by any means but what I posted is my understanding of what happens.
As for what your phone says, who knows what I really is doing. I mean the general process is understood but the specific files and folders that are cleared would be hard to identify.
Sent from my Samsung-SGH-I897 w/ ParagonRC6
i can only get my nexus s 4g to charge up to 97% if i have wireless tether enabled... otherwise it considers itself full at 95%
not sure whats up with that
Sry to ask this but how do u wipe battery stats properly?
Is it let the phone fully charge first, then go to recovery to wipe battery stats and then let my phone battery drain (no charging allowed) until phone is completely dead. Is this procedure correct?
Just install battery calibration from market, easiest way to calibrate your battery imo.
Sent from my Incredible S
Go to recovery mode and in advance menu wipe the battery stats, I think it is the proper way to wipe battery stats
the correct method for proper calibration is charge to 100%....then wipe the battery stats...drain the battery to zero....charge to 100% again...now use it normally. but i am too lazy to do all this so i just clear it.i dont think it would harm.
however if you dont clear it you will get inaccurate readings on ur battery percentage.
ajeya said:
the correct method for proper calibration is charge to 100%....then wipe the battery stats...drain the battery to zero....charge to 100% again...now use it normally. but i am too lazy to do all this so i just clear it.i dont think it would harm.
however if you dont clear it you will get inaccurate readings on ur battery percentage.
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Click to collapse
correct, i once have my battery down to 0, then phone powered down, and i powered it up again and surprised to see 10% more juice. LOL
shiningarmor said:
correct, i once have my battery down to 0, then phone powered down, and i powered it up again and surprised to see 10% more juice. LOL
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Click to collapse
haha
in my case sometimes it loses 10% if i restart my phone
turn off the phone, hold down decrease sound button and push uper button. go recovery and wipe stats)
Thanks for all of your replies as I am lazy, I just download battery calibration app from android market
I calibrated many times my battery.. But when I reboot to recovery, I always find either the battery shown in Ext recovery is lower or higher that what I saw in the Rom.. And after rebooting from recovery to Rom, the Rom shows the battery shown in recovery.. So whenever I reboot my phone, I find the battery % change in Rom... Do anyone experience this..?
Sent from my HTC Incredible S using XDA App
ajeya said:
haha
in my case sometimes it loses 10% if i restart my phone
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Click to collapse
this is due to incorrect values shown by rom..dat's y calibration is required
---------- Post added at 10:49 AM ---------- Previous post was at 10:47 AM ----------
jpkbeddu said:
I calibrated many times my battery.. But when I reboot to recovery, I always find either the battery shown in Ext recovery is lower or higher that what I saw in the Rom.. And after rebooting from recovery to Rom, the Rom shows the battery shown in recovery.. So whenever I reboot my phone, I find the battery % change in Rom... Do anyone experience this..?
Sent from my HTC Incredible S using XDA App
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Click to collapse
after calibration don't reboot phone immediately..
mandeep294 said:
this is due to incorrect values shown by rom..dat's y calibration is required
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yes i already said this is due to my laziness ...i never bother to calibrate properly.
So how often should you re-calibrate your battery?
lerx said:
So how often should you re-calibrate your battery?
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Click to collapse
whenever you flash a new rom.
ajeya said:
whenever you flash a new rom.
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Click to collapse
Ok thank you
so i understand the calibration gig, or at least superficially think i do, but i'm having a problem. as soon as i charge to 100 and click calibrate it immediately says it was successful without allowing me to drain the battery. this didn't use to happen. somehow i don't think i'm calibrating properly anymore. thoughts? am i completely off base and this is correct?
thanks in advance everyone
pendragon11 said:
so i understand the calibration gig, or at least superficially think i do, but i'm having a problem. as soon as i charge to 100 and click calibrate it immediately says it was successful without allowing me to drain the battery. this didn't use to happen. somehow i don't think i'm calibrating properly anymore. thoughts? am i completely off base and this is correct?
thanks in advance everyone
Click to expand...
Click to collapse
What do you mean by "allowing me to drain the battery"? When I click calibrate I immediately get that message as well and disconnect my phone from the charger. That's how it's always been for me.
that's reassuring. i meant that after pressing calibrate we're supposed to drain the battery for it to go successfully
Oh I guess this app doesn't work that way? I don't know I've never done that.
the way I understand it is that when you press calibrate, all it does is delete the battery stats file in the system. the reason you need to discharge it after that is because on the first full cycle the system will rebuild that file correctly to the ROM you are using.
Hi,
For those who need a good battery backup can use this app
https://play.google.com/store/apps/...F1bmNoZXJleC5nb3dpZGdldC5nb3Bvd2VybWFzdGVyIl0.
Before using this app my salsa stays for 15h (heavy use) but after installing this app it stays for 30h (heavy use).. Give it a try. I use super save mode
And it dsnt slow down the phone?
no it doesn't slow the phone...
For people having issues with battery(if the phone is rooted ofcourse and clockwork recovery is installed) go to the recovery menu->advanced->clear battery stats and reboot the phone.
Raneet said:
For people having issues with battery(if the phone is rooted ofcourse and clockwork recovery is installed) go to the recovery menu->advanced->clear battery stats and reboot the phone.
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Click to collapse
How its gonna work? More explaination for this thing, please
Sent from my HTC Salsa C510e using XDA
Raneet said:
For people having issues with battery(if the phone is rooted ofcourse and clockwork recovery is installed) go to the recovery menu->advanced->clear battery stats and reboot the phone.
Click to expand...
Click to collapse
Go.Bin said:
How its gonna work? More explaination for this thing, please
Sent from my HTC Salsa C510e using XDA
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Click to collapse
ok...the idea of this is...when your battery is at 100% charge...and i mean full...u wipe the batt stats, giving a true reading of the battery and not a partial image from previous roms. it is a good idea if your swapping to a new rom. i normally do mine once a month only, never have a problem either.
for example
battery drain on thing rom is moderate to light ie 10% every 3-4hrs.
battery stats on sense 3.4 rom moderate to light 10% every 2-3hrs.
by wiping the stats at full-charge, it show u the true reading how your battery is performing on your current rom.
BigBearEvo said:
ok...the idea of this is...when your battery is at 100% charge...and i mean full...u wipe the batt stats, giving a true reading of the battery and not a partial image from previous roms. it is a good idea if your swapping to a new rom. i normally do mine once a month only, never have a problem either.
for example
battery drain on thing rom is moderate to light ie 10% every 3-4hrs.
battery stats on sense 3.4 rom moderate to light 10% every 2-3hrs.
by wiping the stats at full-charge, it show u the true reading how your battery is performing on your current rom.
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Click to collapse
so do we only wipe battery stats at full charge?
Yes, then it gives u proper indication of life in your battery
Wasn't me............ ;-)