[Q] Question about battery drain while flashing. - Verizon HTC One (M8)

I'm a flashaholic and regularly switch between Clean Rom, CyanogenMod and other ROMs.
I've noticed that doing the following:
1. Reboot to Recovery (TWRP)
2. Back up current ROM
3. Restore or install different ROM and
4. Reboot
results in a huge battery drain, maybe as much as 20%!
Is this normal?
Why would switching ROMs require so much battery?
Could it be related to TWRP? Would CM be easier on the battery?
Anyone know?
TIA for any answers....

xs11e said:
I'm a flashaholic and regularly switch between Clean Rom, CyanogenMod and other ROMs.
I've noticed that doing the following:
1. Reboot to Recovery (TWRP)
2. Back up current ROM
3. Restore or install different ROM and
4. Reboot
results in a huge battery drain, maybe as much as 20%!
Is this normal?
Why would switching ROMs require so much battery?
Could it be related to TWRP? Would CM be easier on the battery?
Anyone know?
TIA for any answers....
Click to expand...
Click to collapse
I'm sure the answer to this could vary between numerous peoples opinions, BUT at first when I read this I thought you meant simply backing up your phone would cause a 20% drain now that would be abnormal to me but going as far as backing up & a new ROM could very well do that.
From what I know the reason that would drain so much is because you know how when you install an app your device is writing and downloading a bunch of data? Well imagine writing that app a few hundred times more, that results in your phone having to constantly supply power (more than just browsing on chrome caching files everywhere) to the area that handles it i.e nand memory or whatever the storage for phones is.
The average full ROM is over 1 gigabyte and the average app is 5-20 MB, you can see the difference in this obviously.
Anyways If you really wanna know more I'd wait for more replies, im sure other people have things they think is the reason too.
& lastly I could be wrong on this, now that I think about it I don't think writing stuff to the memory/whatever consumes as much power as I originally was thinking it did. I'll edit this or reply with something more proper in a few if no one else has corrected the wrongs in what I've said by then.

Thanks, sounds reasonable....

Nothing unusual with battery drain while flashing. Like stated above, allot of data being wiped,installed,etc. The condition of the battery could be a factor as well. And in regards to recovery, I wouldn't think it would make much difference which recovery is used having a big effect on battery. I have used CWM,TWRP,and Phils in the past and didn't notice any difference.

Restoring a backup in TWRP does indeed kill battery life. :|

I could be wrong as well, but not all of the power saving features of an OS will be active during the flashing process either. There maybe a few hardware ones kicking in, but a good chunk of our power saving features come from software constantly adjusting to what were doing.
Void4ever

Related

Can switching between the stock battery and the anker battery cause problems?

So, my boyfriend and I are having a debate. We both have the Doubleshot, bought on the same day. We are both rooted, and he is stock and I am running Bulletproof. I exclusively use the Anker battery, while he constantly switches back and forth from the stock battery and the Anker battery.
Here is the issue, he is having a lot of reboots, and freezing issues, he says it seemed like any time he launched an application that seemed to use a lot of processing power. I have none of these issues, and have come to believe it is because of his constant battery changing between two different capacity batteries, what do you guys think?
Well i think his is acting ****y because hes running tmobiles crappy rom, tell him to root it and it will stop
Sent from my myTouch 4G Slide using XDA
wiswis said:
Well i think his is acting ****y because hes running tmobiles crappy rom, tell him to root it and it will stop
Sent from my myTouch 4G Slide using XDA
Click to expand...
Click to collapse
I did make him root it months ago, I am trying to convince him to flash Bulletproof.
I think he should stick to one battery and reset the battery stats via recovery and do a few recharge cycles.
the_mentor said:
I think he should stick to one battery and reset the battery stats via recovery and do a few recharge cycles.
Click to expand...
Click to collapse
That is exactly what I told him to do, but he doesn't believe me that it will help, and won't do it. I am was hoping that you guys could sway him.
the_mentor said:
I think he should stick to one battery and reset the battery stats via recovery and do a few recharge cycles.
Click to expand...
Click to collapse
I would have to agree with you "the_mentor"
@ OP:
Show him the link posted a few times by Blue about Li-Ion batteries and it might tell him a few things.
Us guys are so stubborn
Typed by ---- oh wait! I'm schizophrenic!
battery calibration app
Should run this app at least to get the battery stats updated.
Swapping back and forth between the batteries is probably confusing the batterystats.bin file and making it work harder to keep it right - if the batteries were the same capacity it would be a non-issue.
I don't think that's the source of the troubles though -
When's the last time he did a factory reset?
On the stock ROM that's something you'll have to do from time to time to keep it running right, it just gets jammed up after a while from all the bloat, rogue libs, and other random crap floating around in it.
Tell him to backup whatever he can, get it to a pc, then do a factory reset AND wipe the sdcard in the process - start fresh.
It'll take a few hours to re-install all the apps, get your contacts back in, etc...etc... but it should run well after that. Also make sure you have a full and fresh battery for running the install - it'll all be better that way.
If he's S-OFF, make sure he stays that way, and if he wants to run stock then have him flash the most recent PG59IMG.zip after doing the factory reset and before he puts all his stuff back on.
Here are the restore to stock directions and links to mirrors i'm hosting for the packages:
Restore to stock
...and here is the above mentioned battery thread:
Everything you wanted to know about Li-Ion batteries but were afraid to ask!
----
To me it just sounds like his ROM (stock one) is just full of random libs from uninstalled apps and whatnot, leftover directories unused and generally just not very 'clean' anymore - factory reset or a refresh of some kind along those lines should get him squared away.
( might be best if you just do it, so it gets done right, since you seem to be the more tech inclined of the two of you? )
oh...and if possible just toss that stock battery in a drawer somewhere and forget about it. Once a month run a charge through it to keep it working, and carry it with you as a spare for trips or something, but try to keep it out of the general rotation.
If he does want to swap back and forth, then do it with the two stock batteries you guys have (your old one and his) and leave the anker out, or split another two-pack between you and have him work with two anker batteries. As long as he's using batteries of different capacities it's gonna play hell on the batterystats.bin file.
Blue6IX said:
battery calibration app
Should run this app at least to get the battery stats updated.
Swapping back and forth between the batteries is probably confusing the batterystats.bin file and making it work harder to keep it right - if the batteries were the same capacity it would be a non-issue.
I don't think that's the source of the troubles though -
When's the last time he did a factory reset?
On the stock ROM that's something you'll have to do from time to time to keep it running right, it just gets jammed up after a while from all the bloat, rogue libs, and other random crap floating around in it.
Tell him to backup whatever he can, get it to a pc, then do a factory reset AND wipe the sdcard in the process - start fresh.
It'll take a few hours to re-install all the apps, get your contacts back in, etc...etc... but it should run well after that. Also make sure you have a full and fresh battery for running the install - it'll all be better that way.
If he's S-OFF, make sure he stays that way, and if he wants to run stock then have him flash the most recent PG59IMG.zip after doing the factory reset and before he puts all his stuff back on.
Here are the restore to stock directions and links to mirrors i'm hosting for the packages:
Restore to stock
...and here is the above mentioned battery thread:
Everything you wanted to know about Li-Ion batteries but were afraid to ask!
----
To me it just sounds like his ROM (stock one) is just full of random libs from uninstalled apps and whatnot, leftover directories unused and generally just not very 'clean' anymore - factory reset or a refresh of some kind along those lines should get him squared away.
( might be best if you just do it, so it gets done right, since you seem to be the more tech inclined of the two of you? )
oh...and if possible just toss that stock battery in a drawer somewhere and forget about it. Once a month run a charge through it to keep it working, and carry it with you as a spare for trips or something, but try to keep it out of the general rotation.
If he does want to swap back and forth, then do it with the two stock batteries you guys have (your old one and his) and leave the anker out, or split another two-pack between you and have him work with two anker batteries. As long as he's using batteries of different capacities it's gonna play hell on the batterystats.bin file.
Click to expand...
Click to collapse
Thanks for the reply. He wants to learn how to do this stuff for himself, so this weekend I am going to show him how to do all of this stuff, and maybe get him on bulletproof. I like showing people how to do this stuff, but most of my friends are just not interested.

[Q] Will battery calibration write the new battery file if Fast Boot is checked?

When I calibrate via Battery Calibration after reaching a 0mA remaining charge via that Current Widget, since it takes a full minute or more of heavy lifting to do a real reboot, it's already at 46,000mA by the time i'm back up.
Will the fake/quick reboot i.e. Fast Boot still write the new file?
I think it writes a generic one till it gets real stats. Not sure on this though and I welcome someone to correct me as I have also been interested in this.
Sent from my HTC One X using Tapatalk 2
People who have performed the calibration: what does your mA meter in the Current Widget read after you boot back up?
also, I think I flashed 1.82 from Scotts collection of kernels after the fact, is this making things worse?
Halp if I don't get to at least 4 hours screen time with such minimal settings (i'm on 20% brightness ffs) I may have to return this beauty
Battery calibration is a myth... FYI... sigh. Are battery are Li-ION base they can't be calibrated. There's multiple factual sites that can confirm this.
theartialmartist said:
People who have performed the calibration: what does your mA meter in the Current Widget read after you boot back up?
also, I think I flashed 1.82 from Scotts collection of kernels after the fact, is this making things worse?
Halp if I don't get to at least 4 hours screen time with such minimal settings (i'm on 20% brightness ffs) I may have to return this beauty
Click to expand...
Click to collapse
Have you tried doing a battery test using htc diag? if not, the process of doing so is as follows:
-Charge your phone to full. (wait till LED light is green)
-Activate airplane mode by going to settings.
-try to kill as much running apps as you can in the background. Don't worry about some of them restarting.
-dial *#*#3424#*#* then select agree.
-select "more" below, and then select battery test. follow the on screen instructions afterward.
-make sure that you check your results exactly after 1 hour later because the screen will stay on even the test is done. So your results might show a different number.
If you get a result lower than 85, you might want to consider exchanging your phone for a new one, or doing a factory reset and trying this test again. In case you are curious, I did the test earlier today to check how mine is doing and got a result of 92. Let us know your results if you indeed do the test.
JCon0320 said:
Have you tried doing a battery test using htc diag? if not, the process of doing so is as follows:
-Charge your phone to full. (wait till LED light is green)
-Activate airplane mode by going to settings.
-try to kill as much running apps as you can in the background. Don't worry about some of them restarting.
-dial *#*#3424#*#* then select agree.
-select "more" below, and then select battery test. follow the on screen instructions afterward.
-make sure that you check your results exactly after 1 hour later because the screen will stay on even the test is done. So your results might show a different number.
If you get a result lower than 85, you might want to consider exchanging your phone for a new one, or doing a factory reset and trying this test again. In case you are curious, I did the test earlier today to check how mine is doing and got a result of 92. Let us know your results if you indeed do the test.
Click to expand...
Click to collapse
thank god there's a semi scientific independent way to verify this. ill run it asap. just to be clear, I just read about this test elsewhere and they mentioned a "score" of 85 vs the battery percent being below 85% after completion, can you clarify? does it matter that im already on cleanrom lite 3.0?
im now suspecting the issue is a combination of sense, 4g and spotty wifi coverage a(considering investing in a new bad ass router with dd-wrt aftermarket firmware)
theartialmartist said:
People who have performed the calibration: what does your mA meter in the Current Widget read after you boot back up?
also, I think I flashed 1.82 from Scotts collection of kernels after the fact, is this making things worse?
Halp if I don't get to at least 4 hours screen time with such minimal settings (i'm on 20% brightness ffs) I may have to return this beauty
Click to expand...
Click to collapse
"Screen on" time is going to vary depending on your usage/signal quality/hardware requirements/etc.
My question(s) is, do you let the phone sit on the charger for any amount of time after it has reached a "full" charge? Also, how many charge cycles have you gone through (after installing a new ROM) before you make these assumptions? Do you use WiFi regularly or mostly mobile data? What are your "sync" settings? What is the ratio between your "Screen-on" time to your "Standby/Idle" time?
If you take a look over in the "Battery Stats Thread", you might see that, depending on your usage (and other variables) 4 hours screen time is not that bad.
Also, as others have mentioned, "calibrating" a battery (which is essentially deleting the "battery stats" file) is not necessary.
http://www.androidcentral.com/wipin...tery-life-says-google-engineer#comment-363054
live4nyy said:
"Screen on" time is going to vary depending on your usage/signal quality/hardware requirements/etc.
My question(s) is, do you let the phone sit on the charger for any amount of time after it has reached a "full" charge? Also, how many charge cycles have you gone through (after installing a new ROM) before you make these assumptions? Do you use WiFi regularly or mostly mobile data? What are your "sync" settings? What is the ratio between your "Screen-on" time to your "Standby/Idle" time?
If you take a look over in the "Battery Stats Thread", you might see that, depending on your usage (and other variables) 4 hours screen time is not that bad.
Also, as others have mentioned, "calibrating" a battery (which is essentially deleting the "battery stats" file) is not necessary.
http://www.androidcentral.com/wipin...tery-life-says-google-engineer#comment-363054
Click to expand...
Click to collapse
I let the phone charge to very close to 0mA via current widget
I don't see how a particular ROM needs to learn your battery stats - if calibration isn't necessarily (I do it anyway with a new rom,) what does the ROM have left to learn?
Mix of wifi and mobile
auto syncing one email address + contacts
ratio is at 6.5 (total time/screen on time)
can you comment on the *#*#3424#*#* battery test? is it accurate?
theartialmartist said:
thank god there's a semi scientific independent way to verify this. ill run it asap. just to be clear, I just read about this test elsewhere and they mentioned a "score" of 85 vs the battery percent being below 85% after completion, can you clarify? does it matter that im already on cleanrom lite 3.0?
im now suspecting the issue is a combination of sense, 4g and spotty wifi coverage a(considering investing in a new bad ass router with dd-wrt aftermarket firmware)
Click to expand...
Click to collapse
I am not sure if I understood your question correctly. If you could point me to that article that you are talking about, that would help. To answer your question, It doesn't matter what your ROM is. I am running sick sense when I did the test. As for the accuracy of the test and why I said that the baseline score is at least 85, most if not all of the people who performed this test who claimed to have good to great battery life had a score of at least 85. So it is reasonable to think that getting a score that is on par with most rules out the issue of having a faulty battery.
In my opinion, most of the battery issues that us ATT one X owners face, especially those that are in LTE areas are software related. In my knowledge, the main thing that influences the battery life apart from the actual battery is the kernel and the radio. At the moment, we do not have the source for the kernel yet. So, it cannot be truly optimized beyond the current tweaks that are being done by the wonderful devs. Until the source is released, I think that flashing a good radio, (new leaked 2.09 for AT&T) using a cpu editor, and following simple battery saving strategies is the way to go... And before I end this, I just want to mention that calibrating the "battery" is impossible. The only thing that can be calibrated is the "battery meter" on every ROM.
theartialmartist said:
I let the phone charge to very close to 0mA via current widget
I don't see how a particular ROM needs to learn your battery stats - if calibration isn't necessarily (I do it anyway with a new rom,) what does the ROM have left to learn?
Mix of wifi and mobile
auto syncing one email address + contacts
ratio is at 6.5 (total time/screen on time)
can you comment on the *#*#3424#*#* battery test? is it accurate?
Click to expand...
Click to collapse
It's not the "ROM" per se, but rather just allowing the phone build "cache".
In other words, when you install a new ROM, sometimes you need to format it first, so all the cached files will be deleted. So when you first use the phone after installing a new ROM you might spend a lot of time re-installing apps and the phone is building cache which takes energy writing the files, not a lot but I feel it might be significant enough to wait until at least the 3rd charge cycle, once you have your apps and widgets set up. For example, the gallery app needs to save the thumbnail cache and so on. I hope that makes sense.
Of course, this would be irrelevant if you were just updating your ROM but I thought I'd mention it anyways. Going back and re-reading your situation I think it might be some other software issue that is draining your battery, not the battery calibration. As for the dial code, I wouldn't know, sorry. Hope you figure it out, I just don't think it's worth the time to stress over "battery calibration/stats", it is more likely a kernel/ROM issue or a hardware issue (the battery itself).
---------- Post added at 09:02 PM ---------- Previous post was at 09:00 PM ----------
JCon0320 said:
In my opinion, most of the battery issues that us ATT one X owners face, especially those that are in LTE areas are software related. In my knowledge, the main thing that influences the battery life apart from the actual battery is the kernel and the radio. At the moment, we do not have the source for the kernel yet. So, it cannot be truly optimized beyond the current tweaks that are being done by the wonderful devs. Until the source is released, I think that flashing a good radio, (new leaked 2.09 for AT&T) using a cpu editor, and following simple battery saving strategies is the way to go... And before I end this, I just want to mention that calibrating the "battery" is impossible. The only thing that can be calibrated is the "battery meter" on every ROM.
Click to expand...
Click to collapse
^
^
Yeah, what he said.
The cache things makes perfect sense. Happy to report I got a score of 92 percent after the battery test! Now playing with settings. I changed to a new no-lte apn and got really spotty coverage and endless disconnections. Can someone post their best 4g, 3g and 2g apns?
Besides flashing the new 2.0 or whatever kernel can somebody recommend anything else to save battery? A link to a good launcher?
theartialmartist said:
The cache things makes perfect sense. Happy to report I got a score of 92 percent after the battery test! Now playing with settings. I changed to a new no-lte apn and got really spotty coverage and endless disconnections. Can someone post their best 4g, 3g and 2g apns?
Besides flashing the new 2.0 or whatever kernel can somebody recommend anything else to save battery? A link to a good launcher?
Click to expand...
Click to collapse
Apex Launcher. It improves battery life quite a bit (in my experience anyways). Also, go through the "Sense" applications, like Weather and Stocks, and make sure you disable sync for them since you can't use the Sense widgets in a 3rd party launcher. You can do it by going to [Settings > Accounts & sync] and selecting each one then making the appropriate changes.

Android OS drain - who else has it?

Hello,
I know there are some topics like this but they were not clear for me.
Sinds already a really long time i have serious draining problems.
when i look at my battery usage, i see android OS just as high as the consumption of my screen.
I changed to every (ICS) ROM you can imagine, but the problem always comes back.
Is it normall that android OS is using between 20-50% ?
Does everyone have this problem?
Better battery stats says: audio out_3 and alarm manager is causing it.
But i can't really remove them can I?
I noticed the back of my phone is always warm, it just doesn't cool down.
I think one of my apps is causing this drain, but I really don't know how to find it.
Do you have any suggestions?
thank you!
You could try a slimmed down version if something like AOSP then see without installing any apps if the problem still occurs.
As for heat mine is always warn too even undervolted and underclockdd to 972mhz it can get warm.
Sent from my pyramid...
when I still had my MT4G, someone found out that if you delete "Google Backup Transport" that the Android OS would go back to normal along with battery life. Im not sure about the Sensation, but make a backup of the file and try deleting it to see if it helps
AOSP had the same problem, but it could be slightly better.
I will try google backup transport.
i have the same problem with AOSP based roms, i normally get around 7-9 hours from a AOSP rom (even tho i have an extended battery) but im currently using rdejager's miui sense rom (undervolted by -100) and im can normally get around 24-30hours from one charge
I flashed Cyanogenmod (opensensation) and i'm really happy with it. I also formatted sd card. Android OS is working normall for now, but it might come back (usualy does :S)
Also i'm buying an anker battery, so i hope the problem is solved!
Otherwise JB must solve it right?
audio out_3 ? you can uncheck Key tone,or download One Power Guard or It will give you some optimization tips.

[Q] Horrible battery life

I don't know if this is common but no matter what rom I flash I get horrible battery life. I always do a clean wipe, full wipe whatever you want to call it, phone lasts maybe 6 hours of usage. Also device sometimes gets very hot, rooted use twrp 2.8.5.0 and am on the latest firmware any ideas? When I use the stock rom battery seems fine. Thanks.
iguate12345 said:
I don't know if this is common but no matter what rom I flash I get horrible battery life. I always do a clean wipe, full wipe whatever you want to call it, phone lasts maybe 6 hours of usage. Also device sometimes gets very hot, rooted use twrp 2.8.5.0 and am on the latest firmware any ideas? When I use the stock rom battery seems fine. Thanks.
Click to expand...
Click to collapse
I hate the battery life on this phone, it ****ing sucks no matter what you do and idk why
iguate12345 said:
I don't know if this is common but no matter what rom I flash I get horrible battery life. I always do a clean wipe, full wipe whatever you want to call it, phone lasts maybe 6 hours of usage. Also device sometimes gets very hot, rooted use twrp 2.8.5.0 and am on the latest firmware any ideas? When I use the stock rom battery seems fine. Thanks.
Click to expand...
Click to collapse
Something is likely holding your phone awake for long periods of time. Impossible to know with the lack of information you've provided. Check out this thread here (It's in the Nexus 5 forums, but it's relevant for all phones) on how and what to post to analyze your battery: http://forum.xda-developers.com/google-nexus-5/help/battery-life-help-troubleshoot-battery-t2785128
Impossible help without knowing what your running, ROM, apps, settings , etc. Start off by installing wakeloc detector and go from there.
so?
what is the best custom rom and kernel for the best battery life?

[P3110] Battery Charging Issues

Greetings;
Im having a weird issue (again - but with different device now).
After re-flashing about 4 or 5 times my p3110 with stock firmware (i never used customs) my battery wont charge to 100% anymore... It will reach 99% and wont reach 100%.
This happened to me previously with i9003.
Actually with i9003 everytime i flashed my device the battery would show a lower value each time.
Also; with i9003 i used Custom Roms; and used to " Erase Battery Stats "; wich such erase seemed to be the problem.
Since i've never erased my stats (to keep my device as close to factory as possible); what could be causing this issue?
Any experts on this matter that can provide me accurate info?
Thanks in advance.
Best Regards;
Richard
rgxHost said:
Greetings;
Im having a weird issue (again - but with different device now).
After re-flashing about 4 or 5 times my p3110 with stock firmware (i never used customs) my battery wont charge to 100% anymore... It will reach 99% and wont reach 100%.
This happened to me previously with i9003.
Actually with i9003 everytime i flashed my device the battery would show a lower value each time.
Also; with i9003 i used Custom Roms; and used to " Erase Battery Stats "; wich such erase seemed to be the problem.
Since i've never erased my stats (to keep my device as close to factory as possible); what could be causing this issue?
Any experts on this matter that can provide me accurate info?
Thanks in advance.
Best Regards;
Richard
Click to expand...
Click to collapse
The first thing that must be checked here is that wall charger and usb cables are not at fault. It maybe a coincidence that happened at the same time you started flashing stock firmware.
2nd depends on the firmware which you have chosen,
Different firmwares have different ways of working. Some have blocking modes, some have power saving modes, different set of features, different bugs as well too.
It might be a glitch altogether as well.
Nobody can explain this exactly accurate unless you try these options. Mine aee just aimed at pointing you to the right direction.
---------- Post added at 05:15 PM ---------- Previous post was at 04:41 PM ----------
One more point, tried discharging it completely? Then charging it in offline/online mode?
Now what about battery stats?
Erasing battery stats, well if you have searched on google about it, you would have seen mixed comments about it's affecting battery life, some says it does help, some says it doesn't.
Some feels It's better to do it and
some prefer better to leave it untouched.
My experience on same issue
I had 2 same sduos devices.
on both I used to flash roms
Custom, stock, everything.
Only difference was, on first one, I did erase battery stats many times.
And the second one I didn't ever touched it.
Result-well the first one, I got 4 other batteries replaced for it, and even the new ones would have trouble keeping the charge on the device after I wiped the battery stats. I couldn't blame the battery stockist for giving me 4 faulty batteries. Battery levels were erratic on stock, on custom.
Second one seems working pretty much nicely and i still haven't replaced the original one. Although on this, sometimes I have a glitch, where battery level would drastically go down after restarting the device and slowly build up to the same level without charging.
I know it's a glitch coming from the custom kernel side. Altogether it's better this way.
Greetings Billysam;
Thanks for your repply.
I aleady had checked both (Charger and Cables) they seem to be just fine.
Yesterday i decided to give my p3110 a good rest while charging and finally it charged completely.
Seems like the last 1% (to achieve full battery charge) requires a little bit more time than usual.
It may have been something related to the last flash i've done or due to constant use.
Stil... It is hard to point out what has really happened.
I was a little bit affraid that my battery or System got messed up somehow.
Do you know if flashing affects the Battery Stats in any way?
rgxHost said:
Greetings Billysam;
Thanks for your repply.
I aleady had checked both (Charger and Cables) they seem to be just fine.
Yesterday i decided to give my p3110 a good rest while charging and finally it charged completely.
Seems like the last 1% (to achieve full battery charge) requires a little bit more time than usual.
It may have been something related to the last flash i've done or due to constant use.
Stil... It is hard to point out what has really happened.
I was a little bit affraid that my battery or System got messed up somehow.
Do you know if flashing affects the Battery Stats in any way?
Click to expand...
Click to collapse
The last one percent does take extra time to reach that last 100% charged level.
The answer to your question is Yes and no.
Where is batterystats stored? It's stored inside root/data/system folder
When you flash or format your device data, it gets wiped too as well
So, Yes. cause it got deleted even when you only deleted data.
It affect battery No. Why?
What information that file has? Is it really important?
Information that you see in settings battery
It holds record of all the past history not the current ones. Or future ones.
Now you decide.
Greetings;
Superb Answer!
Exactly the answer i required.
That gives me whole new perspective, and confirms my theory regarding past and new files when flashing.
rgxHost said:
Greetings;
Superb Answer!
Exactly the answer i required.
That gives me whole new perspective, and confirms my theory regarding past and new files when flashing.
Click to expand...
Click to collapse
Further additional bummers
I was checking the batterystat in my device, and to my findings i saw, the file got modified after I full charged the device. So, it gets rewritten/modified/deleted after each full cycle. So, regardless of flashing rom or data, that file is constantly deleted, modified and created!!
Now suppose if I decide to delete that file holding my current charge capacity information, or the better so called "battery calibration" or "wipe battery stats" from cwm, which is nothing more than deleting it the same way from a root manager.
The file would be created again after restart, with new stats, which could be random or the lowest or highest values, according to the algorithm. Which would be seriously clueless of what the heck did happened to it!
That should clear why people claimed to have good and bad experience with their battery stats.
Even if their battery were good, the stats showed it bad and vice versa.
The algorithm is not at all easy to crack, let alone be calibrated. Even If someone would try to do it, Highly impractical, nor worth it. False claims.
Easiest was deleting it, thinking of it as a refresh, users would do it. And termed the coin calibrated.
"Got better", worked!!
No? Keep Wipe again and again.
So many apps were popular for calibration as well that time. Around 4 years back. I Can't remember their names but i did tried them as well!, in the beginning!!
I did learn from my mistake over the years, thanks to you I looked for answer inside me today. Although I stopped that habbit long ago, but you reminded me of digging deeper today
It should never be done.
Greetings Billysam;
Thank God i'm not the only one reaching such conclusion.
I've done pretty much the same steps; except i didn't knew what to check within the "battery stats" file, and i wasn't aware of the algorythm behind it.
I've tested pretty much those applications as well by that time with my i9003. (Back then someone said iDeleting Battery Stats / Calibrating had a "bogus" effect...)
Well.. I did noticed lots of differences each time i Deleted the " Battery Stats " - Either with CWM or through some application.
Sometimes Good improvement, sometimes terrible (until battery got fat, and stopped charging completely - Actually my i9003 is stuck at 60 or 80%, it simply wont go further).
After so many "Mistakes" on my i9003 i realized that the Battery Stats should be left untouched to prevent any " damage " / issues. I just didn't had a clue what exactly was behind that " Battery Stats " file ( Changes and Operations - or Code if you Prefer)
...
With all this being said and tested.
It seems Logical that Whenever we put a device charging, it should charge completely without interruptions.. Else it may or may not corrupt the file, algorythm or make the battery faulty.
Maybe these are the reasons why manufacturers advice people to fully charge their devices, and in some devices to "Not Fully Discharge " them.
Ofcourse, this is just a theory.

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