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Old July 3rd, 2010, 01:29 PM   #1 (permalink)
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Default How-to calibrate your battery!!!!

This wasn't my idea so I'm linking to the originator of this to give credit where credit is due:

Calibrating your battery and Android - Android Central Forums

IMO this is great for anyone who didn't fully charge their battery with their phone off when they received theirs. If you purchased a 1500mah or Seido "1750mah" battery, I think this will benefit you immensely! I did this in conjunction with Hydra's undervolt kernel and I'm at 1 day 2hrs with 25% battery life left on my HTC 1500mah battery

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Old July 3rd, 2010, 01:32 PM   #2 (permalink)
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didn't help me any. i did this hoping my phone would actually charge my battery to a true 100% but it still drops instantly when taken off of the charger. i guess i'll continue to charge my batteries using an external charger.
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Old July 3rd, 2010, 01:38 PM   #3 (permalink)
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Did you fully charge your battery with your phone off before removing the battery file?
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Old July 3rd, 2010, 01:44 PM   #4 (permalink)
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Originally Posted by Lefort1 View Post
Did you fully charge your battery with your phone off before removing the battery file?
yes, i did.

i followed the instructions and my phone still won't charge a battery to a true 100%. it dropped to 94% within 10 minutes or so. when i charge my batteries with my external battery charger i get much much better battery life. my phone will show 100% for hours and hours when i put a battery in fresh from the external charger.

i just don't think deleting this file will do what people were hoping for. i think there is more to it.
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Old July 3rd, 2010, 01:56 PM   #5 (permalink)
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jasonb stop being a troll, on the forum that he gave us to do the battery calibration you are saying it didn't work. We Get the point it didnt work for you. I did this battery calibration, i will post results in a few days, also im running the undervolt kernel from hydra.
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Old July 3rd, 2010, 02:26 PM   #6 (permalink)
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jasonb stop being a troll, on the forum that he gave us to do the battery calibration you are saying it didn't work. We Get the point it didnt work for you. I did this battery calibration, i will post results in a few days, also im running the undervolt kernel from hydra.
I need to write this down so I don't forget and end up doing it myself seeing as I am a member of several forums. Your saying if a user provides feedback on more than one forum it is considered "trolling"?
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Old July 3rd, 2010, 02:38 PM   #7 (permalink)
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I need to write this down so I do forget and end up doing it myself seeing as I am a member of several forums. Your saying if a user provides feedback on more than one forum it is considered "trolling"?
I'm Not going to fight about this. Just stating.
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Old July 3rd, 2010, 02:44 PM   #8 (permalink)
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I need to write this down so I do forget and end up doing it myself seeing as I am a member of several forums. Your saying if a user provides feedback on more than one forum it is considered "trolling"?
Lol. Very interesting.

Would it have been different if i had confirmed that it worked?
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Old July 3rd, 2010, 02:52 PM   #9 (permalink)
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Jasonb a troll? Not hardly. If you're going to accuse someone of that, pick a likely candidate at least. Not a regular contributer.
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Old July 3rd, 2010, 03:15 PM   #10 (permalink)
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Jasonb a troll? Not hardly. If you're going to accuse someone of that, pick a likely candidate at least. Not a regular contributer.
Have to agree. He has helped me before.
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Old July 3rd, 2010, 03:33 PM   #11 (permalink)
 
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People's problems with a drastic and immediate charge drop just after unplugging from the charger could be due to leaving it on the charger for too long after it's finished charging. im pretty sure all wall chargers by now have a built-in overcharge protection, which basically cuts off the power getting from the charger to the phone itself once the battery is at 100% capacity. at that point, if the phone is left on the charger, the battery level actually DROPS to around 95%, maybe a little less, and is sustained around that percentage to prevent overcharging. the result is your phones battery icon will display that its at full 100% charge, but in reality it is around 95, hence the immediate drop in battery as far as the icon knows.

My advice would be to take your phone off the charger as soon as notification light turns green and see if that helps. otherwise you will be living with this effect until better charging technology is released.
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Old July 3rd, 2010, 03:35 PM   #12 (permalink)
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Have to agree. He has helped me before.
thanks!

i'm sorry to chasehale10 for having to deliver bad news, but i figured id point out that from my experience this little trick didn't work. anybody who wants to try it, feel free. i can't stop anybody from trying it, but if you do, make sure your testing is controlled and accurate if you're going to come on here and claim that it works. i hate to say it's a complete waste of time and effort (for me it was), but it took literally a minute or two to delete the file and boot the phone back up, so everybody feel free to try it if you don't believe me.

my testing was very controlled and my results show that it did not make a difference on my phone. i don't really have a problem with battery life on my phone, what i did want to check was if the phone actually charges the battery to a true 100% after doing this. i killed it completely, then plugged it in and then i watched the led turn green, and decided to let it sit and charge for another half hour or so. from my past experiences i found that if i unplugged it right as it turned green, it would stay at 100% for a while. so if i repeated that process it would have meant nothing. instead i let it charge an additional 30 minutes and then i unplugged it. within 10 to 15 seconds it was back down to 99%. i browsed the web for a couple of minutes, maybe 5 minutes tops, checked again and it was at 94%.

so it did not fix the charging issue. some people might see battery life increases, it's possible i guess. but i never had a problem with battery life. i charge my 3 batteries with an external charger and get really good battery life. i just did this hack hoping it would make the phone charge the battery like it should, but it did not.

but sorry to chasehale10 for sharing my findings on more than one android forum. i'll cease to post on all of them immediately. sorry for the inconvenience.
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Old July 3rd, 2010, 03:38 PM   #13 (permalink)
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Quote:
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People's problems with a drastic and immediate charge drop just after unplugging from the charger could be due to leaving it on the charger for too long after it's finished charging. im pretty sure all wall chargers by now have a built-in overcharge protection, which basically cuts off the power getting from the charger to the phone itself once the battery is at 100% capacity. at that point, if the phone is left on the charger, the battery level actually DROPS to around 95%, maybe a little less, and is sustained around that percentage to prevent overcharging. the result is your phones battery icon will display that its at full 100% charge, but in reality it is around 95, hence the immediate drop in battery as far as the icon knows.

My advice would be to take your phone off the charger as soon as notification light turns green and see if that helps. otherwise you will be living with this effect until better charging technology is released.
this is exactly what i experienced both before and after trying this. it sucks though when you put the phone on the charger when you go to bed. it sucks that it can't be at 100% when we wake up and start our day.

the only solution for me was to get an external charger. i get much better results this way. much better battery life.
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Old July 3rd, 2010, 03:46 PM   #14 (permalink)
 
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this is exactly what i experienced both before and after trying this. it sucks though when you put the phone on the charger when you go to bed. it sucks that it can't be at 100% when we wake up and start our day.

the only solution for me was to get an external charger. i get much better results this way. much better battery life.
which is funny because there are people who will swear that charging our batteries in an external charger ruins them because they were "meant to be charged in the phone".
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Old July 3rd, 2010, 03:50 PM   #15 (permalink)
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which is funny because there are people who will swear that charging our batteries in an external charger ruins them because they were "meant to be charged in the phone".
are you one of those people?

i don't claim to be a battery expert or anything so i don't really know. all i do know is that it charges them fuller than the phone. maybe it is bad, but they never even get warm or anything so i doubt they are over charging. the charger i use is also only a 350MA charge, so it charges them much slower than the phone plugged into the wall.
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Old July 3rd, 2010, 04:09 PM   #16 (permalink)
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Jasonb, sorry for being a prick I should have asked for your side of the story before calling you out like I did. Like I said sorry again.
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Old July 3rd, 2010, 04:11 PM   #17 (permalink)
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Jasonb, sorry for being a prick I should have asked for your side of the story before calling you out like I did. Like I said sorry again.
it's ok. i guess i can forgive you. lol
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Old July 3rd, 2010, 04:23 PM   #18 (permalink)
 
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are you one of those people?

i don't claim to be a battery expert or anything so i don't really know. all i do know is that it charges them fuller than the phone. maybe it is bad, but they never even get warm or anything so i doubt they are over charging. the charger i use is also only a 350MA charge, so it charges them much slower than the phone plugged into the wall.
lol no im not one of those people. im just showing how ironic it is that people who swear by a method of charging your phone and against another method, are the ones missing out on a fully charged phone.
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Old July 3rd, 2010, 04:36 PM   #19 (permalink)
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lol no im not one of those people. im just showing how ironic it is that people who swear by a method of charging your phone and against another method, are the ones missing out on a fully charged phone.
ok. just curious. i wasn't implying that you were or anything. lol

it is ironic. it's also ironic that a $5 charger from ebay charges a battery better than a $530 phone. this is my one and only real complaint about this phone though. other than this issue i love it.

my solution is for everybody to grab a second battery and one of these $5 chargers and rotate between the two batteris. i know it's a pain in the ass to have to take your case and then the back cover off, but the increased battery life is really worth it.

who knows, maybe the whole issue can be fixed with a software patch.
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Old July 3rd, 2010, 05:45 PM   #20 (permalink)
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The phone is designed for the avg user, not someone who is willing to buy extra batteries and external battery slow trickle chargers. For the avg person a daily charge is plenty to keep the phone going 24-7. It charges the battery quickly for a reason. They could have made it so that the charge takes longer and always tops off the battery 100% but this comes at the expense of long term usage and convinience. If you stick a couple widgets for gps,bluetooth,wireless and network you can get more time out of any battery. I am not on my phone all day but without the widgets I would get just enough to make it 24hours now I can go 36hours without a charge and have gone over 2 days. This is on the stock battery. Turn everything off while I sleep, and when I need a feature I pop it on. I turn it off when I'm done.
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Old July 3rd, 2010, 06:27 PM   #21 (permalink)
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Lol. Very interesting.

Would it have been different if i had confirmed that it worked?
nope, then you will be called a fanboy.
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Old July 3rd, 2010, 07:14 PM   #22 (permalink)
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Not exactly what I expected....

Regardless it seems to have worked for me. I'll post up some screen caps when I get a chance.
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Old July 3rd, 2010, 07:17 PM   #23 (permalink)
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nope, then you will be called a fanboy.
i'd rather be called a fanboy than a troll. lol

i'm proud to be an Android fan. better than an apple fan.
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Old July 4th, 2010, 12:20 AM   #24 (permalink)
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pics....
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File Type: jpg CAP2010070321111(2).jpg (143.6 KB, 102 views)
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Old July 4th, 2010, 09:47 AM   #25 (permalink)
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do you need root to accomplish this procedure?
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Old July 4th, 2010, 10:49 AM   #26 (permalink)
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Quote:
Originally Posted by CrackBurglar View Post
do you need root to accomplish this procedure?
Yes.

I followed this procedure and my phone just went from 100% at 11:48am to 97% at 11:50am. 96% at 11:52am. 95% at 11:54am.

I'm using the info tab from setCPU to monitor my battery.

Don't anybody go thinking any of this means that Jasonb isn't a troll btw.. I was under this bridge the other day and there he was.. Counting a huge stack of money!

It's a joke, don't kill me! Battery stats are real though, didn't work for me.
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Old July 4th, 2010, 11:07 AM   #27 (permalink)
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Yes.

I followed this procedure and my phone just went from 100% at 11:48am to 97% at 11:50am. 96% at 11:52am. 95% at 11:54am.

I'm using the info tab from setCPU to monitor my battery.

Don't anybody go thinking any of this means that Jasonb isn't a troll btw.. I was under this bridge the other day and there he was.. Counting a huge stack of money!

It's a joke, don't kill me! Battery stats are real though, didn't work for me.
there ya have it folks.
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Old July 4th, 2010, 09:50 PM   #28 (permalink)
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I am not sure what to make of this, it has been 2:31:57 up and 00:22:47 awake since I did this and my battery still has 10 full bars. Usually within 1 hour tops of standby it would have dropped the first bar.

It will be interesting to see how far I make it.... Kinda like Kramer test driving the car in Seinfeld "The Dealership"
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Old July 5th, 2010, 10:02 AM   #29 (permalink)
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I am not sure what to make of this, it has been 2:31:57 up and 00:22:47 awake since I did this and my battery still has 10 full bars. Usually within 1 hour tops of standby it would have dropped the first bar.

It will be interesting to see how far I make it.... Kinda like Kramer test driving the car in Seinfeld "The Dealership"
i was just thinking about that episode....when they finally ran out of gas kramer was like...."well, i'll think about it"
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Old July 5th, 2010, 11:22 AM   #30 (permalink)
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Guys I don't think this method is supposed to stop the battery from dropping from 100% to 93% as fast as it does. That is just a phone issue with the battery that no user adjustments are going to be able to correct.

I think this is just supposed to help the overall life of the battery with the phone.

I will try this on my days off and see whats what.
 
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Old July 7th, 2010, 10:26 AM   #31 (permalink)
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After getting root for my device (finally) first thing I did was install the unrevoked recovery module. followed by removing cityid, flickr, twitter, and visual voice mail.

Then I fully charged (while on) my seidio 1750, then performed the 1/2 hour powered off trick.

Booted into recovery, mounted systems, deleted batterystats file.

I powered on my device at 14:00 yesterday jul 6. I have been making sporadic calls, taking them as well as browsing, and text messaging.

I am currently sitting at 39% battery remaining, with an estimated dead time of 01:14 AM July 8. (35 hour 57 minutes.) I dont expect it to last till then, but believe me I am 3 hours beyond what my seidio was lasting me already...

I'm not one to make incredible claims that i'm getting 90 hours and still sitting at 70% while using my device as my main computing device. That's just not me.

Simply put, so far this is my experience (24-36 hours) on one charge with moderate use. Up from 18hrs top...

Some may say this doesn't work at all, others may see an improvement. Fortunately I'm in the improvement dept.

Once we're completely dead, I'll reply with the time, and also keep track of subsequent charges in the near future.

If nothing else, rooting for this issue alone was worth the 3 weeks of shear hell it took me to get root.
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Old July 9th, 2010, 03:16 PM   #32 (permalink)
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i have to update my last post...

the first charge lasted 34 hours.... Must have been fairly minimal use.... As on my second day with a full charge... 10AM - 11PM I was on a pier on lake erie... Used GPS a time or two... sent a lot of pics... also lots of calls... Heavy Duty use... 13 hours.

So with any new method of gaining battery... Your Mileage May Vary
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Old July 9th, 2010, 03:50 PM   #33 (permalink)
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Quote:
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i have to update my last post...

the first charge lasted 34 hours.... Must have been fairly minimal use.... As on my second day with a full charge... 10AM - 11PM I was on a pier on lake erie... Used GPS a time or two... sent a lot of pics... also lots of calls... Heavy Duty use... 13 hours.

So with any new method of gaining battery... Your Mileage May Vary
I have a similar situation and I am not sure why my death metal crazed friend. The first day I got 16 hours uptime and 14+ hours awake time with heavy use , Slacker, Tower Raiders, Slimeball etc and still had 30% left when I went to bed . Thats absolutely amazing for me as I have never seen that much usage before.

Then each day after that I have been getting about 12 hours uptime and 4-5 awake and the battery is dead. That is worse usage then I eversaw before. Last night I fully charged before bed (usually charge overnight) and woke up to see it was at 50% within 6 hours and 0 use. Uptime was 6:23:00 and awake was 00:3:17. Something is destroying my battery now and I cannot figure it out Most usage was cell standby with 41% followed by wifi 23%. Never been a problem before.
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Old July 9th, 2010, 09:01 PM   #34 (permalink)
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I think the process provided in the original post/link is not the best way to make sure the battery is properly calibrated. Here's what I did:

  1. Plug your phone in and make sure USB debugging is enabled.
  2. adb reboot recovery
  3. adb shell (once in recovery)
  4. mount /system
  5. mount /data
  6. rm /data/system/batterystats.bin
  7. /system/bin/shutdown
  8. Leave the phone OFF and charge it FULLY until the green light comes back on. Unplug and replug as many times as you need to in order to make sure you have a full charge.
  9. Power on the phone, you're done.

Why this process? To make absolutely certain there is no state data in memory committed to storage at any point. Thus, all the clearing of stats occurs in recovery.
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Old July 9th, 2010, 10:01 PM   #35 (permalink)
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Quote:
Originally Posted by rmk View Post
I think the process provided in the original post/link is not the best way to make sure the battery is properly calibrated. Here's what I did:

  1. Plug your phone in and make sure USB debugging is enabled.
  2. adb reboot recovery
  3. adb shell (once in recovery)
  4. mount /system
  5. mount /data
  6. rm /data/system/batterystats.bin
  7. /system/bin/shutdown
  8. Leave the phone OFF and charge it FULLY until the green light comes back on. Unplug and replug as many times as you need to in order to make sure you have a full charge.
  9. Power on the phone, you're done.
Why this process? To make absolutely certain there is no state data in memory committed to storage at any point. Thus, all the clearing of stats occurs in recovery.
I just got my 2150 so will probabbly do this tomorrow night.
 
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Old July 10th, 2010, 01:18 PM   #36 (permalink)
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Quote:
Originally Posted by rmk View Post
I think the process provided in the original post/link is not the best way to make sure the battery is properly calibrated. Here's what I did:

  1. Plug your phone in and make sure USB debugging is enabled.
  2. adb reboot recovery
  3. adb shell (once in recovery)
  4. mount /system
  5. mount /data
  6. rm /data/system/batterystats.bin
  7. /system/bin/shutdown
  8. Leave the phone OFF and charge it FULLY until the green light comes back on. Unplug and replug as many times as you need to in order to make sure you have a full charge.
  9. Power on the phone, you're done.

Why this process? To make absolutely certain there is no state data in memory committed to storage at any point. Thus, all the clearing of stats occurs in recovery.
This is a great point. And for anybody that doesn't want to mess with running ADB commands you can clear it in the ClockWork Recovery menus,

-Power off phone and charge, bump charge as necessary to get a full charge.
- Power on with Volume Down and Power, boot to recovery.
-Advanced/WipeBatteryStats
-Reboot device and enjoy

This worked great for me today.
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Last edited by GrandMasterB; July 12th, 2010 at 11:00 PM.
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Old July 10th, 2010, 03:07 PM   #37 (permalink)
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This is a great point. And for anybody that doesn't want to mess with running ADB commands you can clear it in the ClockWork Recovery menus,

Advanced/WipeBatteryStats
Really? Cool. Ok going to charge her up full and do this. Thanks man.
 
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Old July 10th, 2010, 04:43 PM   #38 (permalink)
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Quote:
Originally Posted by rmk View Post
I think the process provided in the original post/link is not the best way to make sure the battery is properly calibrated. Here's what I did:

  1. Plug your phone in and make sure USB debugging is enabled.
  2. adb reboot recovery
  3. adb shell (once in recovery)
  4. mount /system
  5. mount /data
  6. rm /data/system/batterystats.bin
  7. /system/bin/shutdown
  8. Leave the phone OFF and charge it FULLY until the green light comes back on. Unplug and replug as many times as you need to in order to make sure you have a full charge.
  9. Power on the phone, you're done.

Why this process? To make absolutely certain there is no state data in memory committed to storage at any point. Thus, all the clearing of stats occurs in recovery.
I lost my Seido replacement battery when my first Inc was run over by a car, but now working with the stock battery and a rooted Inc I can say that this method has been working great so far today.

I performed the steps this morning around 11 and it is now almost 6 and my battery hasn't dropped off of the full level. It's been a light day for me on the phone, so it's not like I drained it, but I would have never been able to go this long without the battery dropping before.

Give it a try guys.
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Old July 12th, 2010, 09:36 PM   #39 (permalink)
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I'm trying rmk's instructions right now, hopefully works out for me! thanks!
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Old July 12th, 2010, 09:48 PM   #40 (permalink)
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It has improved my phone for me maybe by 10% or so.
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Old July 16th, 2010, 07:21 AM   #41 (permalink)
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I'm just bumping this thread to see how it goes for everyone else. I'm itching to root the woman's Inc, but she's a bit reluctant. But if it means better battery life (which I'm sure I can attain from SetCPU alone), then she'll be more game.
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Old July 31st, 2010, 09:01 AM   #42 (permalink)
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I have the OTA Tweaked 1.6 rom installed. I don't think there is a recovery image as I tried to boot into recovery mode it was just the phone and a triangle. So just pulled the battery and pushed batterstats.bin to the system folder. Will this work as well?
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Old August 4th, 2010, 12:09 PM   #43 (permalink)
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Turned my phone off and charged all night,(TP2 1500mah) woke up and unplugged, waited and plugged back in waited for green again and did it one more time just to make sure it's fully charged. Then I booted into clocwork and wiped battery stats.

Running for 3 1/2 hours now with quite the usage and only down to 87%!
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Old August 4th, 2010, 01:06 PM   #44 (permalink)
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JUST MY 2 CENTS....

IT IS A FACT.... Google it... read up on it... ask your science teacher... whatever.... today's LI-ION BATTERIES CANNOT BE "CONDITIONED" you cant train it, it doesnt LEARN...
These methods may help your HARDWARE condition how it utilizes the power it has, but it in no physical way can condition the actual power source (battery). So bitching over wether it works is rather pointless.
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Old August 4th, 2010, 04:04 PM   #45 (permalink)
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Quote:
Originally Posted by Drukan View Post
JUST MY 2 CENTS....

IT IS A FACT.... Google it... read up on it... ask your science teacher... whatever.... today's LI-ION BATTERIES CANNOT BE "CONDITIONED" you cant train it, it doesnt LEARN...
These methods may help your HARDWARE condition how it utilizes the power it has, but it in no physical way can condition the actual power source (battery). So bitching over wether it works is rather pointless.
There is a big difference between conditioning a battery and calibrating the system that reads the battery. This thread is discussing the latter.
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Old August 11th, 2010, 11:49 AM   #46 (permalink)
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So let me ask. Does this have to be done every time you recharge? In otherwords does this set the system up to recognize what a real full charge looks like or is this just a way to get it to last longer for the one charge. If it is the latter I will just keep recharging it but if this is lasting for people through several charges I will go to the trouble of leaving my phone off that long.

I am hoping that someday they figure this out and give us an update to recover the lost battery.
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