after some quick seach i found there a several methods to calibrate the battery with/without wiping battery stats
Method 1
(http://androidforums.com/hero-all-t...tery-life-performance-your-new-shiny-rom.html)
Battery
· Wipe your battery stats...
1. Allow the phone to discharge completely
2. Boot into recovery (hold Home and press On) plug the phone in if you don't have enough charge to get into recovery
3. Select Wipe > Wipe battery stats
4. Go back and Reboot
5. Leave the phone to do a complete charge (preferably over night)
Method 2
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
Method 3
Calibrate your Battery
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.
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
2. do a full nandroid (or nandroid+ext) backup
3. Enter "Wipe"-Menue
4. do "Battery stats wipe"
5. reboot
Then you just take the steps from a bove to continue:
Method 4 (without wipe stat)
Hi *******, I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.
Tried this and there doesnt seem to have an significant effect.
and now i'm trying method 3 with wiping done first.am i doing it wrong?
None, I charge every night so not bothered so long as battery lasts the day
i tend to have the problem of removing the charger and the batt stats shows fully charge to 96 within 5 min..weird
actually i'm doing the 4th method right now
Related
Hi, when I charge my phone to 100% (ie: when current widget shows 0 mA) then I restart my DHD, battery is suddenly at 95%.
My battery has been calibrated, and I always charge to 0mA. Is this normal?
Thank you
Next time you get to 0mA, unplug, reboot into recovery, plug back in, wait 5 mins or so, head to "advanced" and wipe batterystat.bin & reboot normally.
If that doesn't solve it, then your battery may have started to degrade.
solve
no such serious,it is normal.
I have this problem since i'm using custom roms, but it happened just a few times, so i wanted to know why. My phone says e.g there's 27% left but then it it says battery empty and turns off, used insertcoin nightly,stable and now Runnymede AIO
. Is there any way to get the real percentage shown? I already wiped battery stats..
Maybe you should calibrate your battery, wiping batery stats only is not always enough.
Here: myhtcdesire.com/tutorials/how-to-improve-your-battery-life-calibration-tutorial
or here: http://forum.xda-developers.com/showthread.php?t=755903
If it says 27% then goes off that definitely needs calibrating. Often its about 15% which is actually when the desire turns itself off to protect the battery
rootSU said:
If it says 27% then goes off that definitely needs calibrating. Often its about 15% which is actually when the desire turns itself off to protect the battery
Click to expand...
Click to collapse
I could hardly imagine such solution would be implemented in such untidy manner. All gb sense roms have that, yet aosp turns off at 1% as it should.
SwiftKeyed from my HTC Desire using XDA App.
Before setting up new Roma need to do full вайп including and batteries.
Try. if not yet the Council will help Ladies! is done through recovery.
(apologize for bad English)
---------- Post added at 05:54 PM ---------- Previous post was at 05:43 PM ----------
Calibration of the battery precise, the instruction:
1. We unload the accumulator up to 0 % (while itself it will not be switched off), having started video, or other ways.
2. We take out the accumulator from a handheld computer, we wait about one minute, we insert back (we do not include the device!!).
4. We put on зарядку. I shall repeat, the device is not included! (network з.у. 220В).
5. We leave to be charged up to a full level (the red indicator will be replaced on green, usually it is hour 3 on time).
6. After зарядки we take out the accumulator, NOT including a handheld computer and we wait about one minute.
7. We insert back. Now it is possible to include!
P.S. Sometimes at performance of this procedure the indicator maybe green it is primary at зарядке, all the same three hours it is charged, then the device I include, I charge while the indicator with red does not become green, I take out the battery, I wait minute, I insert аккум into a handheld computer. We unload the accumulator up to 0 % (while itself it will not be switched off), having started video, or other ways.
Mmmmmm this send interesting and rather typical for you.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
Sent with Desire.
you do wipe battery in clockmod
[email protected] said:
you do wipe battery in clockmod
Click to expand...
Click to collapse
You didn't read the post above yours, did you?
You got 10 posts. Now stop posting next to no sense information and get your grip.
I can confirm that the phone should shut off around 15% battery. This happened consistently to me running Oxygen 2.3.2.
Calibrate the battery HTC Desire
(Via USB will not work-do from charging a ROOT and
recovery modificirovanoe)
1. charge the body until the green signal diode.
2. disconnect the charging and shut down the body.
3. connect the charger and charge the vyklûčennomu body before the Green diode.
4. Oklûčit′ charge, include body load to the end, turn off and then charge to green diode.5. disconnect the charger,
, not including the body down the back button (or press the volume down) and press the power (enter in recovery), do wipe battery stats.6. Restart
.
My phone's battery drains really fast (didn't had this before)
Well I found these steps:
1. Fully drain your battery, play some games, music, etc.. NO PORN!!
2. Let your battery cool for atleast 2 minutes
3. Restart phone to remove residual charge( it will boot only halfway)
4. After the phone shuts down remove battery and let it cool for atleast 2 minutes.
5. Re insert battery and charge your phone in OFF mode.
6. After the phone reaches 100% charge boot into recovery (Power+Home+Volume_up button)then go int o clowckword recovery by applying skingt1980 zip
7. choose advance option .
8. Wipe battery stats
9. Press Power/Back and Reboot your phone
10. Wait till the phone reaches 100% charge and disconnect charger
11. Have a happy battery life !!!!!!!
Question is: is this safe to do without any hard bricking etc ...
GianniDPC said:
My phone's battery drains really fast (didn't had this before)
Well I found these steps:
1. Fully drain your battery, play some games, music, etc.. NO PORN!!
2. Let your battery cool for atleast 2 minutes
3. Restart phone to remove residual charge( it will boot only halfway)
4. After the phone shuts down remove battery and let it cool for atleast 2 minutes.
5. Re insert battery and charge your phone in OFF mode.
6. After the phone reaches 100% charge boot into recovery (Power+Home+Volume_up button)then go int o clowckword recovery by applying skingt1980 zip
7. choose advance option .
8. Wipe battery stats
9. Press Power/Back and Reboot your phone
10. Wait till the phone reaches 100% charge and disconnect charger
11. Have a happy battery life !!!!!!!
Question is: is this safe to do without any hard bricking etc ...
Click to expand...
Click to collapse
It's safe...i don't think battery problems can cause hard bricking....although you need to follow each step carefully to ensure your battery dosen't screw up....
Sent from my Galaxy Young
GianniDPC said:
My phone's battery drains really fast (didn't had this before)
Well I found these steps:
1. Fully drain your battery, play some games, music, etc.. NO PORN!!
2. Let your battery cool for atleast 2 minutes
3. Restart phone to remove residual charge( it will boot only halfway)
4. After the phone shuts down remove battery and let it cool for atleast 2 minutes.
5. Re insert battery and charge your phone in OFF mode.
6. After the phone reaches 100% charge boot into recovery (Power+Home+Volume_up button)then go int o clowckword recovery by applying skingt1980 zip
7. choose advance option .
8. Wipe battery stats
9. Press Power/Back and Reboot your phone
10. Wait till the phone reaches 100% charge and disconnect charger
11. Have a happy battery life !!!!!!!
Question is: is this safe to do without any hard bricking etc ...
Click to expand...
Click to collapse
You cant brick your phone calibrating battery! Just don't do it over and over again cuz then you'll have to replace your battery.
Raol Emostar said:
You cant brick your phone calibrating battery! Just don't do it over and over again cuz then you'll have to replace your battery.
Click to expand...
Click to collapse
Ok thnx will try it out tommorow
that's safe but useless. battery calibration only useful for smart battery, like the one on notebook, but not for dumb battery, like the one in cellphone. smart battery keep battery statistic so it can provide you data like :
- how much electric charge saved in last charge and how much average power usage so you know how much time left before you need recharge
- how much actual battery capacity and initial capacity so you know when to buy new battery
cellphone don't have (and don't need) that features because it's using dumb battery. battery meter in status bar not actually represents the electric charge in battery, but electric voltage of battery.
battery stat in android phone only record power usage for every running process and don't know at all about battery capacity. and you don't need to wipe manually, it's reset every time you fully charge your phone.
That's mean no need overclock.
I don't think it safe
Sent from my Samsung Galaxy S IV
calibrating battery means we will delete some file inside /data partition. it doesn't related to the battery itself. its save, but useless. there's no proof that this method will increase our battery life.
Its completely useless.
It deals with batterystats.bin file in the data/system/ directory
and as a google engineer puts it..
Dianne Hackborn said:
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
Click to expand...
Click to collapse
I noticed that everytime i rebooted the phone battery level is 1% then later it will return to correct battery level?
anyone experience this? if yes, how did you fix it?
guys I gonna try this
if it works then it should Be a awesome trick for me
This is utterly useless don't try this.
Sent from my GT-S5360B using XDA Premium + Swype
Mine had "false charge" battery icon problem and I tried different methods until I found it by accident.
The phone battery totally drained out even I was sure the phone plugged, and the charging icon (when the phone is off) kept flashing, so I change different cable, and lo and behold, the phone charge again. Then I use the same cable and I found the battery drains on other phone as well.
The "false charging" may be caused by insufficient input voltage and the phone has to lower the voltage to charge and triggers the problem.
Here is the fix:
With the phone is off, use the cable to charge the phone and observe. If the phone does not flash when charging, the cable is OK, but if the phone flashes the battery icon when charging, use different cable.
Reboot the phone to Clockworkmod recovery, and wipe the following:
battery status
dalvik cache
cache
Reboot the phone normally and let the phone charge normally
The "false charging" icon should be gone.
I am running viper rom and i facing some illogical Battery percentage
Any idea how to calibrate it
I ve tried many apps from play store and no results
And i even tried the hard way by pressing the 3 buttons while the phone is off olso no luck
Any idea?
Calibrating the battery on Android devices
Method for rooted devices:
1. Discharge your phone fully until it turns itself off.
2. Turn it on and let it turn off again.
3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.
4. Unplug your charger.
5. Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on the screen as well.
6. Unplug your phone and reboot. If it doesn't say 100 percent, plug the charger back in until it says 100 percent on screen.
7. You want to repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without being plugged in.
8. Now, install the Battery Calibration app attached below and, before you launch it, make sure your battery is at 100 percent again, then reboot.
9. Immediately launch the app and recalibrate your battery stats.
10. Once you've calibrated your battery, discharge it all the way down to 0 percent and let your phone turn off again.
11. Fully charge the battery one more time without interruption while it's switched off, and the Android system's battery percentage will be reset.
Note that all the app does is wipe the accumulated data from the batterystats.bin file giving you a new clean slate to work with. This method is also called, "training the battery" and should be performed infrequently. Maybe once every four months or so.
References:
https://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
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Aurelius99 said:
See if this will help you.....
https://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
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Click to expand...
Click to collapse
I ll give it a try
I would also note that this would be good to do right before installing a battery monitor app like Gsam or BBS. :good:
comstockload said:
I would also note that this would be good to do right before installing a battery monitor app like Gsam or BBS. :good:
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Click to collapse
I haven't calibrated mine in a long time. Getting ready to do it right now.
How successful was this calibration?