Many of My Friends are facing Problem With Battery as Rom shows wrong information about remaining Battery %... As a result your phone goes off and when you start your Phone again it starts to show different % battery that mean that your battery is not Calibrate.. I am making this guide so that every one on this world may enjoy their phone for long time...
Warning Do at your own RISK...! Dont do it again and again
Steps you need to Do -1 First thing you need to do is let your battery goes to 0%.. then again start your phone(Don't plug in charger) and repeat 1st step until your phone denies to turn on back..
-2 Then Charge your phone in Switched off mode to 100%
-3 Unplug your charger
-4 On phone
-5 Your phone is going to show % of battery lesser than 100%
-6 Charge your phone again in on mode to 100%
-7 Unplug your charger
-8 Restart your phone and repeat Steps from 4 to 8 again and again until on every restart u battery % shows about 97%to100%
-9Next step is to calibrate your battery Download free app from plat Store that is Battery Calibration
-10 Calibrate your Battery with the help of that app and make sure that your Battery % is 100
-11 After Calibration Use ur Battery Upto 0%
-12 Then Charge it again and Your battery will be Calibrated...
Enjoy..
Hit Thanks
shreyans4020 said:
Many of My Friends are facing Problem With Battery as Rom shows wrong information about remaining Battery %... As a result your phone goes off and when you start your Phone again it starts to show different % battery that mean that your battery is not Calibrate.. I am making this guide so that every one on this world may enjoy their phone for long time...
Enjoy..
Hit Thanks
Click to expand...
Click to collapse
DON'T ever do this! Discharging a Li-ion battery completely WILL decrease your battery life.
Next, the battery calibration app is nothing more but a hoax. It only deletes a file containing the battery stats which is ONLY used in the battery statistics screen in settings.
So please, DON'T!
It's true you get the same result from the battery calibrate app by wiping battery stats in recovery. Draining your battery does decrease battery life of li-ion batteries, same goes for your laptop. The theory to cycle your battery is a myth and actually wrecks your battery.
Sent from my GT-i9100 using Tapatalk 2
bugadani said:
DON'T ever do this! Discharging a Li-ion battery completely WILL decrease your battery life.
Next, the battery calibration app is nothing more but a hoax. It only deletes a file containing the battery stats which is ONLY used in the battery statistics screen in settings.
So please, DON'T!
Click to expand...
Click to collapse
The 0% reported by the operating system is actually a bit higher than the voltage at which li-ion batteries will become damaged. Any modern phone should not allow you to discharge the battery to the point where it could cause damage.
Also there was an employee from Google IIRC that said wiping battery stats was useless because its only a file that keeps track of what apps used the battery and it wiped automatically when charged to 100%.
bugadani said:
DON'T ever do this! Discharging a Li-ion battery completely WILL decrease your battery life.
Next, the battery calibration app is nothing more but a hoax. It only deletes a file containing the battery stats which is ONLY used in the battery statistics screen in settings.
So please, DON'T!
Click to expand...
Click to collapse
Well when there is fall in battery from 100% to zero in 10 min then u have to calibrate
I am not saying to calibtate it daily... as i said you have to go to zero once to complete one cycle..
spunker88 said:
The 0% reported by the operating system is actually a bit higher than the voltage at which li-ion batteries will become damaged. Any modern phone should not allow you to discharge the battery to the point where it could cause damage.
Also there was an employee from Google IIRC that said wiping battery stats was useless because its only a file that keeps track of what apps used the battery and it wiped automatically when charged to 100%.
Click to expand...
Click to collapse
True.. i m getting what u want to say about labor force..
shreyans4020 said:
Well when there is fall in battery from 100% to zero in 10 min then u have to calibrate
Click to expand...
Click to collapse
I admit, when that happens, the battery circuit is probably in a dumb state and it _may_ be useful then. But doing this regularly is incredibly dangerous for the battery. Yes, some phones bias the battery reading but the post suggests to actually force it empty while turning it back on and on and on and that really kills it.
Still, using the app is just pure nonsense.
bugadani said:
I admit, when that happens, the battery circuit is probably in a dumb state and it _may_ be useful then. But doing this regularly is incredibly dangerous for the battery. Yes, some phones bias the battery reading but the post suggests to actually force it empty while turning it back on and on and on and that really kills it.
Still, using the app is just pure nonsense.
Click to expand...
Click to collapse
No post suggest that drain battery once to zero then charge it again and again upto actual 100%
Sent from my Karbonn A5 using xda app-developers app
shreyans4020 said:
No post suggest that drain battery once to zero then charge it again and again upto actual 100%
Sent from my Karbonn A5 using xda app-developers app
Click to expand...
Click to collapse
How about the 1st point of the first post? "Drain it to 0 then turn it on and on again until it doesnt turn on anymore"?
You could brick an hp touchpad by doing this.
bugadani said:
How about the 1st point of the first post? "Drain it to 0 then turn it on and on again until it doesnt turn on anymore"?
You could brick an hp touchpad by doing this.
Click to expand...
Click to collapse
Because 0% shown by the phone is.not actually 0% to gain that actual 0% we have to do that
Sent from my Karbonn A5 using xda app-developers app
You do realize why they make the reported 0% above the actual 0%. If you drain a lithium ion battery to actual 0% you'll permanently damage it. Also calibration is only useful if you want the OS to read the battery percentage more correctly. Lithium ion batteries themselves work perfectly fine with partial charge cycles.
spunker88 said:
You do realize why they make the reported 0% above the actual 0%. If you drain a lithium ion battery to actual 0% you'll permanently damage it. Also calibration is only useful if you want the OS to read the battery percentage more correctly. Lithium ion batteries themselves work perfectly fine with partial charge cycles.
Click to expand...
Click to collapse
Actually your phone will not turn on before damage point so don't worry about that ...
Sent from my Karbonn A5 using xda app-developers app
shreyans4020 said:
Actually your phone will not turn on before damage point so don't worry about that ...
Sent from my Karbonn A5 using xda app-developers app
Click to expand...
Click to collapse
That doesn't make any sense - you're stating in that post that turning on the phone damages the battery.
I will state this again: if you force your phone on and on again until it doesn't react, you may and on the long run probably will damage your battery. If your battery is not removable, this can also easily brick your device as seen with HP Touchpads.
If you feel that you must do something, simply drain the battery _once_ then charge it. This is the only thing that a sane electric engineer will ever advise.
Well that worked on my phone... i said that do at your own risk.... actually i am saying the same thing that drain your battery.. but if battery is not calibrate sometimes phone goes off even on 36% and if u charge at that point to hundread then that method will not work...
Sent from my Karbonn A5 using xda premium
Thank us so much working perfectly for me
iiTian said:
Thank us so much working perfectly for me
Click to expand...
Click to collapse
Press the thanks button
:good:
DraXonic said:
Many of My Friends are facing Problem With Battery as Rom shows wrong information about remaining Battery %... As a result your phone goes off and when you start your Phone again it starts to show different % battery that mean that your battery is not Calibrate.. I am making this guide so that every one on this world may enjoy their phone for long time...
Warning Do at your own RISK...! Dont do it again and again
Steps you need to Do -1 First thing you need to do is let your battery goes to 0%.. then again start your phone(Don't plug in charger) and repeat 1st step until your phone denies to turn on back..
-2 Then Charge your phone in Switched off mode to 100%
-3 Unplug your charger
-4 On phone
-5 Your phone is going to show % of battery lesser than 100%
-6 Charge your phone again in on mode to 100%
-7 Unplug your charger
-8 Restart your phone and repeat Steps from 4 to 8 again and again until on every restart u battery % shows about 97%to100%
-9Next step is to calibrate your battery Download free app from plat Store that is Battery Calibration
-10 Calibrate your Battery with the help of that app and make sure that your Battery % is 100
-11 After Calibration Use ur Battery Upto 0%
-12 Then Charge it again and Your battery will be Calibrated...
Enjoy..
Hit Thanks
Click to expand...
Click to collapse
This is why you shouldn't/ need not calibrate your batteries.. It'll do you more harm than good.
http://batteryuniversity.com/learn/article/battery_calibration
are we in need to wipe battery status for once in the recovery
What about for me, me tab has been saying 1% the past 3 hours and I've been using it and trying to kill it so hard but whatever I do it won't die. I want to "truly" get it to 1% or even 0% so I can then charge it back up to 100% in hopes of calibrating the battery to show what my actual % is. Any help will be appreciated greatly.
Related
Hey i flashed my device with the battery at around 80%.
after the flash it was 100%...
so this means i just lost 20% of my capacity? how do i fix this?
Imperium said:
Hey i flashed my device with the battery at around 80%.
after the flash it was 100%...
so this means i just lost 20% of my capacity? how do i fix this?
Click to expand...
Click to collapse
I don't believe you have lost capacity. It's only your gauge that's slightly altered. If you recharge your device fully(and about an extra 30min) you should have the regular capacity
How could going from 80% to 100% equate to a lost ???
it's posible that you'd gained the extra charges while the flashing process was going on ( because it was plugged in ?? ) ... if it wasn't ... no idea why
UnicornKaz said:
How could going from 80% to 100% equate to a lost ???
Click to expand...
Click to collapse
If i understand the post correctly they are equating am 80% to 100% a loss for 2 reasons:
1. because he would have lost charge while flashing due to the massive battery drain.
2. because now he is stating that his 100% is really only 80%
but i would probably just leave it charge overnight and you should be fine, the gauge just sounds to be off, it shouldnt be a true loss (unless the battery is bad)
Is there any other way to sync the battery with the device? I been trying a full discharge then charge.
I am using a mugen extended 3000mah battery and at 15% 10% and 1% it will stay there for some time before it starts to go down or turn off completely if it is reaches less than 1%.
I don't think you've lost capacity.
I believe you just did a quick check before flashing (and it was already charging before you started right?), and the battery gauge wasn't updated. I had this a couple of times while recharging. I take a quick look and think "this is gonna take another half hour". Five minutes latter I check and the charge led is green again.
Sometimes the battery metter lags a bit, you have to check it again to be sure when charging.
At least it happens to me.
BUMP THAT said:
Is there any other way to sync the battery with the device? I been trying a full discharge then charge.
I am using a mugen extended 3000mah battery and at 15% 10% and 1% it will stay there for some time before it starts to go down or turn off completely if it is reaches less than 1%.
Click to expand...
Click to collapse
a few cycles of full charge and discharge should put the battery meter in check...
shogunmark said:
a few cycles of full charge and discharge should put the battery meter in check...
Click to expand...
Click to collapse
Alrighty. I have done three so far. It has gotten better then the first time I got it. But its not perfect.
is it safe to discharge it to 0% so that it will shutdown? or what?
http://www.nexusoneforum.net/forum/nexus-one-faq-how-tos/5625-calibrate-your-battery.html
RECALIBRATION:
A recalibration is mostly needed, when dealing with different kernels (ROOT!). Most custom recovery images provide the option "battery stats wipe" under the menue "Wipe".
Here is how ya do it!
1. Enter Recovery Mode
3. Enter "Advanced"-Menue
4. do "Wipe Battery stats"
5. reboot
Calibrate the battery by completely draining it until the phone completely shuts itself off.
Turn the phone on again and let it shut itself off one more time.
Then charge your phone while it is off for over 8 hours.
This will fully charge the battery so that when the Android is turned on, it now sees the battery as full.
It is recommended to repeat this process at least one more time.
You should see a significant increase in your battery’s charge life.
Calibration of a battery can be done at any point and a maintenance calibration is recommended every month.
Thanks for this useful guide
Hi,
Your posted information doesn't sound true for me. Why should recalibrating increase the battery life? The battery is full when the end voltage is reached an no more charge can be taken (4,2v @ lipo) and it is empty if the minimum allowed voltage is reached (should be with Deffy's technology 2,8v?). So why should recalibrating increase battery life?
Greetings, Jo
DOCIOHN said:
Hi,
Your posted information doesn't sound true for me. Why should recalibrating increase the battery life? The battery is full when the end voltage is reached an no more charge can be taken (4,2v @ lipo) and it is empty if the minimum allowed voltage is reached (should be with Deffy's technology 2,8v?). So why should recalibrating increase battery life?
Greetings, Jo
Click to expand...
Click to collapse
It's well known that this procedure will indeed produce better battery performance. Most devices have a similar procedure. Even HTC has given some calibration procedures in order to improve battery performance.
How do you enter Advanced Recovery? I can get my phone into recovery but that's all.
tim440 said:
How do you enter Advanced Recovery? I can get my phone into recovery but that's all.
Click to expand...
Click to collapse
Hey,
You have to user Clockwork MOD recovery, and then when inside it go to Advanced, and you will see the battery wipe option.
cheers
DOCIOHN said:
Hi,
Your posted information doesn't sound true for me. Why should recalibrating increase the battery life? The battery is full when the end voltage is reached an no more charge can be taken (4,2v @ lipo) and it is empty if the minimum allowed voltage is reached (should be with Deffy's technology 2,8v?). So why should recalibrating increase battery life?
Greetings, Jo
Click to expand...
Click to collapse
lion battery recalibration/recondition was already there long before android even existed...
Since I flashed several ROMs I tried this and I am happy! Battery consumption seems to be better after this workaround. I'm on 1.3 Ghz @ 72 Vsel with my Defy and easily reach an uptime of 2 days, mostly a bit more..
Thanks again!
There will be almost no impact on total runtime, just the percentage meter can become more accurate by "calibrating" the battery. In addition to a complete discharge (I do not encourage you to discharge more than ONE auto-off, you shorten the battery life by discharging below 3.0 V) you need to have a nearly constand discharge current on most phones for this calibration to become really accurate.
What is the effect? Well, not much. Your phone just knows better how much battery is left, so maybe the "empty batt" message @15% comes later. The usage time and the auto-off threshold are not impacted at all.
When we are talking about a battery that has been put away for months without use, you may be right. One charge-discharge-charge cycle may bring back some capacity. But this is not true for any regularly used battery.
If you care about battery life time (in months/years, not a single charge): Charging above 4,0 V has a great negative impact on it; Constantly holding the charge @ 3,5-4,0V may nearly double the life of a battery but you can only use about 50% of its capacity this way.
I'm not sure if calibration/full discharge is necessary/recommended. From many readings calibration is not necessary for lithium battery. Actually it is recommended against full discharge as lithium battery has limited full discharge/recharge cycles.
after doing research on all methods to recallibrate checking pros and cons finally i got the answer brothers...its very simple no need for cwm or drain full abttery kill your batery download recallibrate delete batterystat.bin....all fake bother....just do a simple step remove your battery for 2-5 minutes and than on it....you are recalibrated....simple
galaxyfitankit said:
after doing research on all methods to recallibrate checking pros and cons finally i got the answer brothers...its very simple no need for cwm or drain full abttery kill your batery download recallibrate delete batterystat.bin....all fake bother....just do a simple step remove your battery for 2-5 minutes and than on it....you are recalibrated....simple
Click to expand...
Click to collapse
See this screenshot.........i am charging my cell and it is showing also its charging but not even d graph nor the battery icon is increasing .
Seriously help me
see this sir...i hopwe u can help anything in this:crying:
abhinavvaidya90 said:
See this screenshot.........i am charging my cell and it is showing also its charging but not even d graph nor the battery icon is increasing .
Seriously help me
see this sir...i hopwe u can help anything in this:crying:
Click to expand...
Click to collapse
take out battery for about 10 minutes. And then try to charge again.
If you will see same problem i think you need to buy new battery.
http://forum.xda-developers.com/showthread.php?t=1443108
This is firmware problem format your phone and than it will be fine or go to stock firmware
galaxyfitankit said:
This is firmware problem format your phone and than it will be fine or go to stock firmware
Click to expand...
Click to collapse
i did but to no vail
then buy a new battery ?
buy i new battery bro...and if warranty left than go to service centre the problem also ...is your battery swelled up kya?
So i charged to 100% and callibrated and left the phone on the side for a while as ive heard battery callibration works better when battery is naturally drained. However, its been a week and its still at 100% -_____-. i dont plan on waiting a month or so just to make sure its perfectly callibrated. Is there a better way to do this? . Thanks guysss
Sent from my SGH-T959V using XDA Premium App
Light-라이트 said:
So i charged to 100% and callibrated and left the phone on the side for a while as ive heard battery callibration works better when battery is naturally drained. However, its been a week and its still at 100% -_____-. i dont plan on waiting a month or so just to make sure its perfectly callibrated. Is there a better way to do this? . Thanks guysss
Sent from my SGH-T959V using XDA Premium App
Click to expand...
Click to collapse
Naturally drained? Regular use is needed to drain the battery. An unused battery (I have a couple) will take months to drain. Just use the phone as you do in your every day usage. Let it get down to about 5 to 10% then fully charge and calibrate.
you cant calibrate a lithium ion battery. in fact draining them is bad for the battery. however if youre having problems with the phone not reading the battery percentage correctly you need to wipe the batterystats.bin using either clockworkrecovery or just download the battery calibration app from the market.
regP said:
you cant calibrate a lithium ion battery. in fact draining them is bad for the battery. however if youre having problems with the phone not reading the battery percentage correctly you need to wipe the batterystats.bin using either clockworkrecovery or just download the battery calibration app from the market.
Click to expand...
Click to collapse
Really? Cycling the battery a few times for better performance is a myth?
xAshxMoneyx said:
Really? Cycling the battery a few times for better performance is a myth?
Click to expand...
Click to collapse
yes for lithium battery it is. the older ni-cd batteries required this.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
infact..this result shows that you should charge often. 10-15% discharge..and charge cycles provided the longest battery life.
this article is very very good!
That's good information. While I didn't know all that I did find the whole calibration idea a waste of effort. I've tried calibrating the battery on a couple phones and my battery life has never increased. The most that ever happens is I'll find myself away from home with no charger and have to quit playing with phone so I have enough juice left in case of an emergency.
Sent from my LG-P999 using xda premium
regP said:
you cant calibrate a lithium ion battery. in fact draining them is bad for the battery. however if youre having problems with the phone not reading the battery percentage correctly you need to wipe the batterystats.bin using either clockworkrecovery or just download the battery calibration app from the market.
Click to expand...
Click to collapse
No, Lithium-ion batteries do not have a memory effect.
Technically, you are not calibrating the battery, you are calibrating your phone's battery gauge. The easiest way to do that is with the Battery Calibration app.
1. Open the Battery Calibration app screen. With the phone on, charge to 100%, then let the phone continue charging for another 15 min.
2. Press the "Calibrate Battery" button on the app (deletes batterystats.bin), Close Battery Calibration app then TURN THE PHONE OFF IMMEDIATELY!
3. Disconnect AC charger
4. Remove battery
5. Wait 30 seconds, then re-insert battery
6. Charge phone with phone off for half an hour
This tops off the charge on the battery.
7. Disconnect charger and turn phone on
As the phone turns on it will create a new batterystats.bin and record the high battery voltage as 100% battery.
8. Use the phone normally and run it down to 0% when the phone shuts off.
The phone now knows the curve of this battery as it relates to your phone's ROM
9. Charge the phone for ten minutes, then turn the phone on and let it continue charging to 100%
This lets batterystats.bin know your phone's charging curve
10. At 100%, remove charger
Now use the phone normally. You will be happy to get an extra few hours use of your phone.
If you really want to get the most out of your battery, get the Battery Monitor Widget Pro app. It keeps a close watch on your battery and also allows you to change batterystats.bin files for different batteries.
And always remember to Give Thanks if you find this helpful!
EEngineer said:
No, Lithium-ion batteries do not have a memory effect.
Technically, you are not calibrating the battery, you are calibrating your phone's battery gauge. The easiest way to do that is with the Battery Calibration app.
1. Open the Battery Calibration app screen. With the phone on, charge to 100%, then let the phone continue charging for another 15 min.
2. Press the "Calibrate Battery" button on the app (deletes batterystats.bin), Close Battery Calibration app then TURN THE PHONE OFF IMMEDIATELY!
3. Disconnect AC charger
4. Remove battery
5. Wait 30 seconds, then re-insert battery
6. Charge phone with phone off for half an hour
This tops off the charge on the battery.
7. Disconnect charger and turn phone on
As the phone turns on it will create a new batterystats.bin and record the high battery voltage as 100% battery.
8. Use the phone normally and run it down to 0% when the phone shuts off.
The phone now knows the curve of this battery as it relates to your phone's ROM
9. Charge the phone for ten minutes, then turn the phone on and let it continue charging to 100%
This lets batterystats.bin know your phone's charging curve
10. At 100%, remove charger
Now use the phone normally. You will be happy to get an extra few hours use of your phone.
If you really want to get the most out of your battery, get the Pro app. It keeps a close watch on your battery and also allows you to change batterystats.bin files for different batteries.
And always remember to Give Thanks if you find this helpful!
Click to expand...
Click to collapse
out of all battery calliberation posts ive seen till now but this one makes complete sense. this even gave me an idea how this "caliberation " works.
again, thanks
dragonflame8712 said:
out of all battery calliberation posts ive seen till now but this one makes complete sense. this even gave me an idea how this "caliberation " works.
again, thanks
Click to expand...
Click to collapse
agreed :good:
I have read every possible thread you can imagine on battery calibration and can never seem to do this correctly, is it a myth? No matter what I do, if I restart my phone, I end up going from 100% down to 85-86% EVERY SINGLE time.
This is after "bumping it". (letting it drain all the way to 0% and then fully charging again).
This is after using BATTERY CALIBRATION in the market which was told works well. (again, advises you charge to 100% then "calibrate" it via the APP).
This is after charging it to 100% and restarting it, recharging up to 100%, restarting and recharging (repeat, repeat, repeat), and then going into bootloader and wiping battery stats.
None of these have worked, does someone have a sure fire EXACT way to do this properly or is at ALL just hype? Help.
Your battery will never say 100% after a reboot. It sucks up a lot of juice on a power up and the battery doesn't charge during powering on. I usually drop about 10% on a reboot using the rezound battery. That is normal behavior. If you can charge to 100% with the phone on then you're fine.
Sent from my ADR6400L using Tapatalk
Interesting because I've never lost 15-16% consistently although I guess it using some juice to cycle makes sense. Anyone else seen 10+ every restart? Thanks for the help man in either case.
Hmm, never seen this before. On my phone which is running skyraider uc to 768mhz and uv only loses 1percent on reboot or doesn't even lose charge at all. Not sure why your phone is doing that.
Sent from my ADR6400L using xda premium
I am running G3D uc to 768mhz and on restart I may lose 1 - 5% at most depending on if i made any changes that take a longer restart. I bet you are overclocked? no need, under clock to 768mhz and your phone will run as smooth as 1.2mhz..maybe smoother while using less battery
Running liquid 3.2.1 on my T-Bolt with the Rezound battery and I only lose 1% battery at boot up. Never lost more...oh and I have never calibrated my battery. Also I get about 8-10 hours of moderate to heavy use too. All stock clocks btw
Just to double check - or reword... do it this way - if you aren't already.
Charge to 100%.
Wipe Batt stats
Drain to zero without recharging in any way (AKA let it drain until it shuts off on you).
Recharge until 100% (till it says 100%, not just "green."). And unplug.
And you're good! Try that and check back in.
Battery Calibration doesn't work
Ignore the % number, it means nothing. Use the battery monitor widget or another program that will show you the actual battery voltage. A fully charged battery will be somewhere around 4200 mV and a discharged battery between 3600 and 3200 mV. I've also noticed that the rezound battery throws things off as the mAh rating doesn't match up to either of the thunderbolt batteries. This is why the battery monitor widget shows the rezound battery as 2750 mAh instead of 1620.
What I recommend to my Evo peeps [which I have] is this:
-Charge battery to 100%
-Wipe battery stats in recovery
-Let the battery drain, so it manually powers off
-Charge to 100% again, and good to go
Battery Calibration doesn't work
Click to expand...
Click to collapse
By this I mean Google Developers have came out recently and said battery calibration does not increase or have any effect on the state of battery life. All wiping the battery stats does is wipe the stats as to what has been using the battery, etc.
still handy for when you flash a new rom to wipe the stats, but it doesn't improve battery life at all.
smoody said:
By this I mean Google Developers have came out recently and said battery calibration does not increase or have any effect on the state of battery life. All wiping the battery stats does is wipe the stats as to what has been using the battery, etc.
still handy for when you flash a new rom to wipe the stats, but it doesn't improve battery life at all.
Click to expand...
Click to collapse
Actually, the post from Dianne @ Google said nothing about calibration. She only talked about wiping or deleting the battery stats file.
You are correct, however all the battery calibration apps available only delete the battery stats file. So like I said it doesn't affect battery life.
wherestheboost said:
Just to double check - or reword... do it this way - if you aren't already.
Charge to 100%.
Wipe Batt stats
Drain to zero without recharging in any way (AKA let it drain until it shuts off on you).
Recharge until 100% (till it says 100%, not just "green."). And unplug.
And you're good! Try that and check back in.
Click to expand...
Click to collapse
This is what I thought I had done but will do again. The problem is even after its 100% and in between your 1st and 2nd step when I reboot into recovery, it's no longer at 100% and sometimes down to 85%ish. I will try again tho, thanks!
http://rootzwiki.com/_/articles/wiping-battery-stats-is-pointless-says-google-r316
That pretty much says it. Wiping stats and calibrations are placebos.
l7777 said:
That pretty much says it. Wiping stats and calibrations are placebos.
Click to expand...
Click to collapse
Yeah I read that too. But when I flashed my first rom on the tb I got abysmal battery life. 25% in like 20 min. I recalibrated and it got so much better. If its a placebo its a good one.
Sent from my HTC ThunderBolt using Tapatalk
all that says is the the deleting the batterybin file doesn't help. The battery is handled by each by software outside of android itself. So, following the battery calibration from the manufacturer of your phone still might help.
jefferyriess said:
Yeah I read that too. But when I flashed my first rom on the tb I got abysmal battery life. 25% in like 20 min. I recalibrated and it got so much better. If its a placebo its a good one.
Sent from my HTC ThunderBolt using Tapatalk
Click to expand...
Click to collapse
25% in 20 minutes means nothing. The % is an estimated number. Find an app that reads the battery voltage if you want a true reading on the battery's charge. Full is 4.2 volts, dead is between 3.0 - 3.6 volts. Battery life should only be measured in hours from full to dead. I've seen my phone stick on 100% for several hours before as well as sticking at 20% for several hours. Ignore the %. Anyone spending all day looking at a % to judge their battery life should go back to a battery indicator that doesn't show %.
My battery has been acting funny lately. Some nights I go to bed with the battery at 100% and when I wake up it's still at 100%. Other nights it loses 10-15% (in about 9 hours). I don't have anything running in the background that I'm aware of that would cause such a discrepancy. A couple nights ago the battery lost 10-12% overnight with the phone turned off! Still the phone was apparently awake all night. How is that possible?
I'm too lazy right now to post a screenshot since xda only accepts urls.
The same here after flashing a new custom rom.
After turning on the phone and making this screenshot percentage immediately went down for 10 to 15 %.
You can check things like that pretty good with apps like Battery Monitor Widget.
Did both of you try to recalibrate the battery?
Do a full cycle charge to 100% use it till 10% then wipe battery stats and charge phone to 100 again
Sent from my HTC One S using xda premium
k1llacanon said:
Do a full cycle charge to 100% use it till 10% then wipe battery stats and charge phone to 100 again
Sent from my HTC One S using xda premium
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Why would you only go down to 10? Might as well drain the battery completely. It's not going to damage anything unless you let it sit around dead for weeks, possibly even months.
It's never good to completely drain a lion battery
Sent from my HTC One S using xda premium
k1llacanon said:
It's never good to completely drain a lion battery
Sent from my HTC One S using xda premium
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Actually, for a proper cell calibration, it is best to drain the battery completely. Many agree and I have never heard a dev say that draining it dead hurts the battery. It is essential for each cell to be empty in order to properly and fully charge a li-ion battery (without this, % figures will be non-calibrated over time). Just like it is of good practice to let the device charge and extra hour or so once the indicator light turns green (to ensure 100% after trickle mode).
Rule 1: Battery calibration does absolutely nothing. Deleting battery stats will never, ever do a single thing to help your phone's battery calibration.
Rule 2: Standby drain is almost always because of partial wakelock or kernel wakelock. Install Betterbatterystats to figure out what the issue is.
Rule 3: If your phone is in a good reception area and still experiences heavy standby drain, charge the phone until it reaches max voltage (4.2 or 4.3), then use it until it shuts off, then go to hboot until it shuts off, then charge to full again, preferably with the phone off. Wait about an hour after you first see the green light to turn it on.
After that, enjoy. If you still have issues, I would suggest backing up everything and attempting an ruu flash with the battery at 100%.
I failed to mention it, but I haven't rooted or installed a custom rom.
I'll try better battery stats to see what I can find out with that.