Ive been rooted since we got S-Off and have been considering installing a custom rom. I just would like to know if callibrating (fully charge, fully drain, etc) is really necessary.
Nope, but its recommended. You'll notice your battery would be constantly misread if you don't do it between flasing roms.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Misread in what way?
DozeBeatS said:
Misread in what way?
Click to expand...
Click to collapse
He meant to say that your battery life would continuously improve as the rom discovered range limits of the battery voltage.
So can I fully charge it, and then drain it doing whatever necessary? Or do I use it normally to drain it? Also, is this done before the rom, or after?
DozeBeatS said:
Misread in what way?
Click to expand...
Click to collapse
This is just a personal theory. The operating system reads the battery percentage so say your at 60 percent and you flash a new ROM right. Which is basically taking the operating system off and replacing it again. Those battery states left from the old ROM would still be there if you don't wipe them. Mind you since your in recovery the operating system is not really running since you haven't booted up & while in recovery of course your draining battery (keep in mind, these phones were not made for use to be going in and out of recovery mode. Therefore if your phone is all stock, there would be know reason for the OS to misread your battery percentage.) So when you boot back up into the ROM the battery is looking at the older battery stats which could possibly cause the OS to misread the battery percentage. Like I sad its just a theory. Maybe someone with a little bit mire knowledge then me could chime in and better explain.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Why not wiping battery stats in recovery?
Coz i just saw it in 3D with the Shooter!
r0cky0790 said:
This is just a personal theory. The operating system reads the battery percentage so say your at 60 percent and you flash a new ROM right. Which is basically taking the operating system off and replacing it again. Those battery states left from the old ROM would still be there if you don't wipe them. Mind you since your in recovery the operating system is not really running since you haven't booted up & while in recovery of course your draining battery (keep in mind, these phones were not made for use to be going in and out of recovery mode. Therefore if your phone is all stock, there would be know reason for the OS to misread your battery percentage.) So when you boot back up into the ROM the battery is looking at the older battery stats which could possibly cause the OS to misread the battery percentage. Like I sad its just a theory. Maybe someone with a little bit mire knowledge then me could chime in and better explain.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Click to expand...
Click to collapse
Phone doesn't read battery percentage, it reads voltage and then calculates the percentage based on the lowest and highest voltages recorded.
Posted from SDX Developers
So it seems like your battery isn’t lasting very long. You search the Forum at SDX Developers and hear about this thing called “Battery Re-Calibration” and how its supposed to be great for increasing your battery life. Well, sorry to burst your bubble, but the guides for “Battery Calibration” lead you through some steps that actually do more harm than good! And here’s the reason why: The batteries in your mobile forms are high-capacity lithium-ion batteries. This kind of battery technology cannot be simply reset and “re-calibrated.” When you follow the steps to recalibrate your battery and delete the batterystats.bin file from your phone, you are getting rid of more than what you think… Stored inside that batterystats.bin file, your phone keeps detailed logs of the capacity of your battery and uses it on how it can be utilized more efficiently. By deleting this file, it basically wipes the phone’s memory on what the battery can really do. This actually does damage to your battery by using up valuable charging cycles, all while giving a fraction of battery life and performance. Now, you might be saying uh-oh, I’ve already re-calibrated my battery! What do I do?! Well here’s your answer. Use your phone like normal. Yes, your battery and phone wont perform as good as it can for a while, but after a few days, you will notice that it starts doing better and better. Give it time, its trying to rebuild all those logs that you just deleted I hope this helps and clears up this argument once and for all! Posted in SDX | Tags: battery, Battery Re-calibration, re-calibration, recalibrati
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Related
If anyone uses Ultimate Juice/Juice defender, can you kindly chime in and give me your personal views on your experience with it on the 3D. It seems like it drains my battery overnight while idle. I took my charger off the phone fully juiced. When I woke up this morning it was sitting at 82 percent. Now when i don't have juice defender installed my phone sleeps like a beast. I observed this when i wasn't rooted all the way till this day. When i checked the notification bar I saw that titanium backup ran one of the schedules I have set up so I thought that may be it. I just want to here you guys experiences so I could see if this app is still a keeper for my 3D.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
What ROM are you using? I don't have juice installed, but with senseless or viper installed, I wake up with what I had the night before. Possibly 1 percent dropped. Background notifications are off, Bluetooth off, WiFi or 3g on and Facebook friendstreak loaded if on viper. Others eat up battery power.
life64x said:
What ROM are you using? I don't have juice installed, but with senseless or viper installed, I wake up with what I had the night before. Possibly 1 percent dropped. Background notifications are off, Bluetooth off, WiFi or 3g on and Facebook friendstreak loaded if on viper. Others eat up battery power.
Click to expand...
Click to collapse
I'm on Showdowns ROM with his baked kernel. That's what I'm saying, if I don't have juice Defender installed I won't lose I sip of battery overnight. As soon as I installed it I notice I lost almost 20%. I observed this once before right when temp root came out so i uninstalled it. The crazy part about it to me is I can't find no bad reviews anywhere on the app. That's why I'm asking you guys for your opinions.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Then that tells me get rid of it. Sometimes best intentions backfire. I know we really don't need items like juice or advanced task manager with our version of android, their times where of past versions. That is my view, they where needed on the og EVO, not now.
life64x said:
Then that tells me get rid of it. Sometimes best intentions backfire. I know we really don't need items like juice or advanced task manager with our version of android, their times where of past versions. That is my view, they where needed on the og EVO, not now.
Click to expand...
Click to collapse
That's what i figured. The only reason I wanted to give it another go was because people with the sgs2 was talking like it worked wonders. But I guess they are just noobs and don't know what they are talking about.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Delete
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
I use it on my ROM.no issues at all.it works perfectly.
sent from my badass EVO 3D running Kaos Hybrid 4.20 using tapatalk
kaos420 said:
I use it on my ROM.no issues at all.it works perfectly.
sent from my badass EVO 3D running Kaos Hybrid 4.20 using tapatalk
Click to expand...
Click to collapse
So you mean to tell me you don't lose any battery at all using juice defender. Have you ever tried charging till you had a full battery then taking it off the charger and letting it sit idle overnight. Try that and chime back in with your results. If you don't come back with the same issue I had ill start using ultimate juice again. Only cuz your a Dev.
-off topic-
I've been meaning to ask you about your Kaos logo. Isn't that the same logo from homefront, if so, nice.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
I have had nothing but good results from using it. And, I've recommended it to lots of people. The thing it does best is to keep the 3G radio off most of the time. That is what saves the most battery.
I like a lot of the other features, too, like the location one where it figures out where you connect to WiFi and turns it on in just those places. That feature isn't perfect, but it works fairly well.
I've forgotten to plug it in to charge overnight, before, and awakened to only a percentage or two drop. I've actually never tested it without Juice Defender, though, but I am quite happy with my battery life with it.
I had good results with Juice Defender but when I upgraded to Ultimate things went haywire. Ended up not being able to connect to any WiFi network, WiFi would show as ON but I would get "Unable to Search for Networks". Uninstalled and rebooted and back working. So now I just manage my radios manually; that bug gave me a scare as really didn't want to have to re-flash. Oh, EVO 3d GSM on Virtuous 1.02.
I've used Juice for a long time. First on my 4G and now on my 3D. Just the other night I was fully charged before I went to bed and left the phone unplugged overnight. Woke up with 98% while having wifi, gps and bluetooth still on.
I'm using the gbsense-e3d rom. I plugged it in last night and was at 8% battery after 21 hours & around 2 hours of on screen usage and display 53%.
I have Juice set to basic but I usually run it on advanced and use the location for managing my wireless. In the past I did set a bunch of options in advanced settings and got terrible battery so I started to only use the preset options.
Sent from my PG86100 using XDA App
Install system tuner pro and see if it's that app causing you issues...
Sent From My EVO3D
hankbear said:
I have had nothing but good results from using it. And, I've recommended it to lots of people. The thing it does best is to keep the 3G radio off most of the time. That is what saves the most battery.
I like a lot of the other features, too, like the location one where it figures out where you connect to WiFi and turns it on in just those places. That feature isn't perfect, but it works fairly well.
I've forgotten to plug it in to charge overnight, before, and awakened to only a percentage or two drop. I've actually never tested it without Juice Defender, though, but I am quite happy with my battery life with it.
Click to expand...
Click to collapse
Well the percentage drop is noticeable to me because I have a 4000 mah extendo from seidio. I uninstalled ultimate juice last night before I took it off the charger to do another test. Just to see if ill get that same percentage drop without the app, & what do you know? I lost a total of three percent without it with all my radios on including 4G. So yeah, screw juice defender. Like I said, you'll have to fully charge to a hundred then take it off the charger and let it sit overnight to see what I really mean. I think when it gets in the 80 percentile, that's when it starts serving justice. IMO I don't think its really optimized for dual core phones.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
fifedogg said:
Install system tuner pro and see if it's that app causing you issues...
Sent From My EVO3D
Click to expand...
Click to collapse
I'm going to check that out to see what its about.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
r0cky0790 said:
So you mean to tell me you don't lose any battery at all using juice defender. Have you ever tried charging till you had a full battery then taking it off the charger and letting it sit idle overnight. Try that and chime back in with your results. If you don't come back with the same issue I had ill start using ultimate juice again. Only cuz your a Dev.
-off topic-
I've been meaning to ask you about your Kaos logo. Isn't that the same logo from homefront, if so, nice.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Click to expand...
Click to collapse
i have no issues with it. i leave my phone off all day and night at times. my wife forgets to charge hers alot. sometimes its off days. including nights. it never kills it fast. if anything it only dropped by a few % i guess depends on how you configure thew app. i just dont install it and let it run. i set it up to my liking.
kaos420 said:
if anything it only dropped by a few % i guess depends on how you configure thew app. i just dont install it and let it run. i set it up to my liking.
Click to expand...
Click to collapse
Well that's what I'm saying. I could leave my Evo sitting all day and it won't lose any battery if I won't touch it. If JD is designed to save juice while the screen is off, it defeats the purpose by draining battery in the background.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
And just to let you guys know, I just realized juice defender isn't really needed. Your 3G sleeps when the screen is off if you go into mobile network settings and uncheck Enable always-on mobile data.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
I'm experimenting with Juice Defender Ultimate as well. I'm using SteelROM and last night I had my phone on my battery for 12hrs. Watched a couple of Football games on my Sunday Ticket app, surfed the internet, checked email, and made a few phone calls. Without Juice Defender, I was getting about 9 to 10hrs (using SteelROM) a day with about the same amount of usage. So I guess I'm getting 2 more hours using it. But Steel's ROM is also a factor in me getting better battery life.
I'm talking ROMs, kernels, apps to help, ANYTHING. I'm almost literally sick by how awful this battery is. I made my EVO 4G last 2 days on heavy usage(how I always use my phone) with juicedefender running. Now juicedefender doesn't seem to help even a bit and my phone ends up dying in 6 hours TOPS so I need to start focusing more on ROMs geared towards battery life. Help?
Edit: before people assume I haven't researched this. I bought an Anker battery (still hasn't shipped), taken heed of everything in the battery life tips thread, AND reduced my auto brightness as suggested in that one thread. These fixes give me negligible amounts of power.
Edit 2: after turning off all user apps that start up with my phone my phone has a wake lock that I can't get past.
I personally think that the Virus 2.3.3 Nightly (gingerbread) ROM runs very well with the lowest amount of battery use. Some things you have to get used to, but overall I love using it. I'm on my second day of no charge (although I do have a 4500mah battery) - and still have 30% left. And I am on my phone for hours sometimes. So with a regular battery I would assume you could get a day or more. Use the stock Ziggy's Kernel that comes with it. Then, if you want even more battery out of it, use Virtuous OC to underclock the CPU to below stock settings and you should easily get more than a day out of it with pretty hefty usage.
A different ROM that wasn't my personal favorite but is definitely a good ROM for battery saving is Viper's. His is sense.
Fadakar said:
I'm talking ROMs, kernels, apps to help, ANYTHING. I'm almost literally sick by how awful this battery is. I made my EVO 4G last 2 days on heavy usage(how I always use my phone) with juicedefender running. Now juicedefender doesn't seem to help even a bit and my phone ends up dying in 6 hours TOPS so I need to start focusing more on ROMs geared towards battery life. Help?
Edit: before people assume I haven't researched this. I bought an Anker battery (still hasn't shipped), taken heed of everything in the battery life tips thread, AND reduced my auto brightness as suggested in that one thread. These fixes give me negligible amounts of power.
Edit 2: after turning off all user apps that start up with my phone my phone has a wake lock that I can't get past.
Click to expand...
Click to collapse
avoid juice defender and manage yourself with system panel
rom
http://forum.xda-developers.com/showthread.php?t=1226479
kernel
http://forum.xda-developers.com/showthread.php?t=1224659
warmfrog said:
avoid juice defender and manage yourself with system panel
rom
http://forum.xda-developers.com/showthread.php?t=1226479
kernel
http://forum.xda-developers.com/showthread.php?t=1224659
Click to expand...
Click to collapse
+1 for SteelROM! Best battery life I've seen on this phone.
warmfrog said:
avoid juice defender and manage yourself with system panel
rom
http://forum.xda-developers.com/showthread.php?t=1226479
kernel
http://forum.xda-developers.com/showthread.php?t=1224659
Click to expand...
Click to collapse
Juice defender definitely drains battery by running in the background. The 3D is already capable of disabling 3G while screen is off.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
... I just have some things I'd like a little assistance with if possible.
1. Because the battery has over double the capacity of the stock battery, I wasn't expecting even close to sensible battery reports from Android. However, I wasn't expecting it to last for a long time, drain at a rational rate, and then halt at 1% for 6 or so hours. I have no way of predicting how much time I have left when I reach that 1% mark, and it literally just shuts off the phone without warning, as if I just unplugged the battery. Is there any way to adjust anything so that It properly reports the battery charge value from 100-1%?
2. I have no idea how long to charge this phone. Obviously the stats of the stock battery are hardcoded into the OS; after the phone shuts off, I'll put it on to charge, it will enter the charge-only-mode (which is weird to me in itself, thought the custom bootstrap overwrote this?), and it will only take a couple hours to reach 100%. This is about how long it took for me to charge the stock battery. Anyway to have the phone properly display the current charge while in its charge only state? I'm afraid of not properly cycling the battery if I don't charge it long enough, or even worse, damaging the battery by charging too long. After it hits 100%, assuming I am correct in that it still needs to charge after reaching that mark, will the phone even accept more power from the charger? As silly as it might sound, that sorta made sense to me. If the phone is incorrectly measuring the battery at that point, shouldn't it cease to charge after reaching what it thinks/I] is a proper 100%?
3. If there is no way to fix the issue in #1, I read somewhere you can measure the voltage of a battery and know when the phone is fully charged or about to die based on that voltage? At least I think it was voltage.
I've calibrated, don't bother asking. That has never worked, even on stock; I'm convinced its a myth, but that's a discussion for another thread.
By the way, Eclipse ROM's battery life sucks. Anyone stating otherwise is misinformed. The best battery life I ever experienced was on stock 2.2, followed very closely by Liberty 3 ROM. I have no idea why Eclipse has such terrible battery drain, though I would be interested if anyone knows. I've gone through two phones, their respective batteries, and now my third battery, the monstrosity that is the 3200mah, so please don't bother trying to convince me that Eclipse has better battery than some alternatives. It sucks. I'll be downgrading back to 2.3.4 and flashing Liberty right after I finish writing this.
Thanks to anyone who can help!
Also, I've been following the Droid X2 bootloader status for like 6 months. Realistically, how close are we to being able to flash a new kernel? An I'm pretty sure we can't crack to bootloader anyways. I remember calculating the possible combinations of keys Motorola could have used; it was a massive number. In that case, how would hijacking the boot process allow us to use Cyanogen? If we can't crack the bootloader and then flash the CM kernel, wouldn't it just be a glorified version of Eclipse? I don't even like Eclipse. Lawl.
I'm done typing. My sexy computer comes tomorrow; crossfire 6990's here I come! Need to get to sleep so I can all-night-hardcore-no-life play BF3 with Shibby tomorrow. I hope someone on these forums knows who that is.
You need to boot into clockwork recovery. Go to advanced and hit clear battery stats. after that fully charge and discharge your battery 4 times and that should fix you up.
Sent from my SGH-T959V using XDA App
Oh sorry. Didn't realize cw hasn't been released for your phone yet. Have you tried deleting the batterystats.bin file manually. I believe there is also an app for this on the market.
Sent from my SGH-T959V using XDA App
I have the same battery that you do with this phone, although I don't use the phone anymore.
You can NOT make Android read the battery correctly. You are in the dark.
Calibrating will NOT, as you've already found out, fix battery reporting.
I used to gauge when it was going to die by looking at mV left. Around 3500mV is when it would die. Get Battery Indicator from market to find out mV.
Oh, and: 4.2V = 4200mV etc
hampsterblade said:
Oh sorry. Didn't realize cw hasn't been released for your phone yet. Have you tried deleting the batterystats.bin file manually. I believe there is also an app for this on the market.
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
I appreciate the understanding you have of my situatition, for, clearly, you have thoroughly read what I wrote.
donlad said:
I have the same battery that you do with this phone, although I don't use the phone anymore.
You can NOT make Android read the battery correctly. You are in the dark.
Calibrating will NOT, as you've already found out, fix battery reporting.
I used to gauge when it was going to die by looking at mV left. Around 3500mV is when it would die. Get Battery Indicator from market to find out mV.
Oh, and: 4.2V = 4200mV etc
Click to expand...
Click to collapse
I figured as much. For a multi-billion dollar investment, you would think Google and its partners wouldn't overlook something so silly, not to mention locking our ****ing bootloader.
Anywho, I'll try out that app. Is 4.2V a full charge for the 3200?
Thanks!
This is a known issue with the droids. Some have had success with the batteryleft widget which can learn the full capacity of the battery.
Also not googles fault. This one is only Motorola's issue.
Sent from my SGH-T959V using XDA App
http://m.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer
Sent from my PG86100 using Tapatalk
bloodrain954 said:
http://m.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
Haven't read it yet.
But its 'myth'.
posting part of the article here would help you know
Dude, not to be a **** and rain on your free will for posting info, but this is old news. Battery stats are known to be used to measure how much juice your battery can hold, in otherwords the stats are their to learn your battery. Wiping battery stats should be used only when your on an alpha Rom with broken battery reporting moving to a more stable version. Or when your battery needs calibrating.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
r0cky0790 said:
Dude, not to be a **** and rain on your free will for posting info, but this is old news. Battery stats are known to be used to measure how much juice your battery can hold, in otherwords the stats are their to learn your battery. Wiping battery stats should be used only when your on an alpha Rom with broken battery reporting moving to a more stable version. Or when your battery needs calibrating.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
Click to expand...
Click to collapse
this is the point....
your battery does not need calibrating. that is the myth.
tailsthecat3 said:
Havent read it yet.
But its 'myth'.
Click to expand...
Click to collapse
Thanks for the help, also it's "haven't."
Sent from my PG86100 using Tapatalk
Alright, alright.
bloodrain954 said:
Thanks for the help, also it's "haven't."
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
Grammar police.. *siren noise*
lol... nice thread. it still has potential
Well when phones start shutting off at 14%, we will see who stays committed to this thread. Like i said no disrespect but nice talking to you guys.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
i saw this and posted about it but didnt get any responses. was wondering if any devs or people in the know could explain it a little more.
r0cky0790 said:
Well when phones start shutting off at 14%, we will see who stays committed to this thread. Like i said no disrespect but nice talking to you guys.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
Click to expand...
Click to collapse
explain this to me then... how, logically this idea about wiping battery stats makes sense. think about this.
you flash a new rom, wiping system completely, fresh start right? ok. so a small crash course in Linux... the Linux kernel is the power management system for android. this means voltage, charge capacity, and discharge cycles. the Linux kernel determines at what voltage to power down your phone, and at what voltage is full charge. is it not? it is. right.
ok so the next question I ask... is why is this a dispute? you just read a quote from an engineer that told you exactly what the function of the battery stats file is... and it is simply system analysis. it logs readings on what is consuming battery, for how long... charge and discharge cycles. it does NOT control or maintain the phone's power management. this is a Linux kernel function. just like your CPU voltages are maintained and operated by your Linux kernel, so is everything else (your entire phone for that matter) in the android world.
I used to wipe battery stats alllll the time. did the whole charge to full capacity, delete battery stats, yadda yadda yadda... does nothing.
let me ask you this as well, and this logic should by itself debunk anything you have ever been told about the batterystats.bin file... HOW does it make any sense, that your phone would know when it is fully charged after flashing a rom if your system was dependent upon the batterystats info to know when it is fully charged? because remember that information is lost when reflashing a rom, because it is stored in the /data/system/ directory. so after flashing a rom shouldnt your phone have ABSOLUTELY no idea what to display????? but instead you boot it up, and what do you see? the difference is nothing, you see a small difference in percentage that was spent while flashing your rom. and why is that? because the new kernel you flashed is now taking the voltage readings... not the batterystats file.
batterystats.bin "calibration" is indeed a myth. and you are not calibrating it, or anything, by deleting it. you are simply deleting a system log of what has been using your battery.
Lol I only wiped my stats when I had a new battery when I swapped em out or a bigger battery.
reaper24 said:
Lol I only wiped my stats when I had a new battery when I swapped em out or a bigger battery.
Click to expand...
Click to collapse
still isn't needed. lol. your charge capacity could be a bajillion mAh and as long as your voltage ranges for the battery are within the spec of the OS.. it will run perfectly.
have to understand that mAh and voltage are two completely different things. a simple way to put it is mAh is simply a measurement of theoretical sustained power output, and voltage is the actual power output.
voltage ranges are the same for a 4000 mAh battery for this phone, or a stock one. the difference (the mAh) is the amount of power it has stored for use.
think of it like.... gasoline... the gas tank is the mAh, and the MPG is the voltage. one has an effect on the other, but only in regards to sustained travel time.
cobraboy85 said:
still isn't needed. lol. your charge capacity could be a bajillion mAh and as long as your voltage ranges for the battery are within the spec of the OS.. it will run perfectly.
have to understand that mAh and voltage are two completely different things. a simple way to put it is mAh is simply a measurement of theoretical sustained power output, and voltage is the actual power output.
voltage ranges are the same for a 4000 mAh battery for this phone, or a stock one. the difference (the mAh) is the amount of power it has stored for use.
think of it like.... gasoline... the gas tank is the mAh, and the MPG is the voltage. one has an effect on the other, but only in regards to sustained travel time.
Click to expand...
Click to collapse
Lol im a mechanic I know all about gas and volts
How big of a gas tank does your phone have? I've put a half gallon in my phone but it still won't start/power up...
I was happy to learn that wiping battery stats isn't neccessary because it's now one less thing I need to go through when changing things up.
I will say I was wiping stats when changing roms because I simply didn't know any better.
I'm no guru with programing or engineering so I was part of the masses doing this. Lol enjoyed the placebo effect of thinking I was doing something essential to improve battery though.
Sent from my PG86100 using xda premium
aerajan said:
I was happy to learn that wiping battery stats isn't neccessary because it's now one less thing I need to go through when changing things up.
I will say I was wiping stats when changing roms because I simply didn't know any better.
I'm no guru with programing or engineering so I was part of the masses doing this. Lol enjoyed the placebo effect of thinking I was doing something essential to improve battery though.
Sent from my PG86100 using xda premium
Click to expand...
Click to collapse
Its technically not a placebo effect that battery life improved while "calibrating your battery"...but its not related to the wiping of stats.
During the calibration process, it takes time to cycle (fully charge and discharge) your battery...while this itself didn't affect battery life...it allotted time for the ROM and kernel combo to "settle in", and run more efficiently, which in turn, made people think that the positive effects of the "calibrating process" were due to the wiping an arbitrary stats file
Vinchenzop said:
Its technically not a placebo effect that battery life improved while "calibrating your battery"...but its not related to the wiping of stats.
During the calibration process, it takes time to cycle (fully charge and discharge) your battery...while this itself didn't affect battery life...it allotted time for the ROM and kernel combo to "settle in", which in turn, made people think that the positive effects of the "calibrating process" were due to the wiping an arbitrary stats file
Click to expand...
Click to collapse
Cool, thanks for the simple explanation. So is it still a good idea to calibrate the battery by fully charging then discharging it when switching roms?
aerajan said:
Cool, thanks for the simple explanation. So is it still a good idea to calibrate the battery by fully charging then discharging it when switching roms?
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No, not necessarily....just wait a day or two after installing a new ROM and/or kernel before judging how it will run on your specific phone...
Basically, after flashing a ROM or kernel, just use your phone. If the battery is low, charge it, if its not low, don't charge it...don't stress about battery life for a day or two until everything sets in
So many people wait only an hour after flashing and scream "horrible battery life on this ROM/kernel!"....people need to learn patience
Here is something I just noticed I sometimes wipe my battery stats once I get a full charge on a new rom. I always wipe and flash using fastboot boot recovery.img.
Roms always run fine smooth no issues. But for some reason if I go and wipe my battery stats after a full charge my gauge will lock up and the battery chart doesn't work anymore...
Even a reflash and wipe doesn't help. What would cause this issue?
Im on hboot 1.5
I know back when I would just flash the boot.img then the rom.. I never had issues wipeing my battery stats....
So anyone else have this issue?
I know folks say you don't need to but some times you do need to if you flash a rom and for some reason your battery gauge sticks at 99% green light... Will never hit 100%..
it eventually will hit 100%... you have to charge it while the phone is off just once and it will green light while off... then boot up and charge again and it will hit 100...
also, what exactly do you mean by the battery chart??
it shouldn't have an issue because your voltage/charge is monitored by the kernel... kind of an odd little anomaly to be honest.
cobraboy85 said:
it eventually will hit 100%... you have to charge it while the phone is off just once and it will green light while off... then boot up and charge again and it will hit 100...
also, what exactly do you mean by the battery chart??
it shouldn't have an issue because your voltage/charge is monitored by the kernel... kind of an odd little anomaly to be honest.
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The chart graph like thing in about phone battery and that top graph thingy..
Well damn I just reflashed the other method and still nothing is workin in the graph chart thing...
reaper24 said:
The chart graph like thing in about phone battery and that top graph thingy..
Well damn I just reflashed the other method and still nothing is workin in the graph chart thing...
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here's the thing, the reason why you are not seeing anything in your battery usage is because that's exactly what the batterystats.bin file is - it is a data dump of statistics... what has been using your battery, for how long, all kinds of mathematical outputs of screen on usage, awake time, apps, so on and so forth... converts all of that into a percentage and that's what you are seeing in your settings/battery usage.
so, accordingly, when you delete batterystats.bin, all of those statistics are gone and you have nothing to display. after a charge cycle or so, you will see that information displayed again.
again, batterystats.bin is simply the statistics of what has been using the battery. has nothing to do with the phone's actually ability to display the correct percentage, get a full charge, etc... that is ALL the Linux kernel which is your power management for the device.
wiping batterystats is truly unnecessary. does nothing for your battery life, and flashing a ROM then wiping battery stats is useless too because when you flash a ROM you wipe data... and the batterystats.bin is found in /data/system... so effectively you are wiping battery stats every time you flash a ROM.
but to go back to the OP... not sure why your percentage is not being displayed correctly... sounds like a ROM issue.
cobraboy85 said:
here's the thing, the reason why you are not seeing anything in your battery usage is because that's exactly what the batterystats.bin file is - it is a data dump of statistics... what has been using your battery, for how long, all kinds of mathematical outputs of screen on usage, awake time, apps, so on and so forth... converts all of that into a percentage and that's what you are seeing in your settings/battery usage.
so, accordingly, when you delete batterystats.bin, all of those statistics are gone and you have nothing to display. after a charge cycle or so, you will see that information displayed again.
again, batterystats.bin is simply the statistics of what has been using the battery. has nothing to do with the phone's actually ability to display the correct percentage, get a full charge, etc... that is ALL the Linux kernel which is your power management for the device.
wiping batterystats is truly unnecessary. does nothing for your battery life, and flashing a ROM then wiping battery stats is useless too because when you flash a ROM you wipe data... and the batterystats.bin is found in /data/system... so effectively you are wiping battery stats every time you flash a ROM.
but to go back to the OP... not sure why your percentage is not being displayed correctly... sounds like a ROM issue.
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Ya I pulled the battery let the phone discharge and put it back in finally got everything working again ... I was on nightlys a few days ago and flashed one last night that was when I had some funky issues with the battery gauge after doing a wipe.
I only do a wipe if the gauge gets dicked up...
Anyways thanks man... Hopefully I fixed this sucker...
yeah, definitely was a ROM issue...
hope it's worked out and no problem man. hope all that rambling made sense, haha.
cobraboy85 said:
yeah, definitely was a ROM issue...
hope it's worked out and no problem man. hope all that rambling made sense, haha.
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Ya I think it was either rom related or my sleepy ass screwed something up..... damn been a long night....
Anyways thanks man,,
for sure. no reason to close thread tho... might provide some useful information for somebody else sometime