yashsingh1/xdaforums huggingface dataset:
[Desire General] dinoalbert:
hi...Im a noob on Android phones...been a WinMo user for years....now Im only 1 day old with Android (HTC Desire).

I hope you dont mind me asking, how do I do the following:

1. recovery mode

1. wipe batt stat

2. reboot

thanks..
[Desire General] elburna:
This is what I get. Does anybody know why my battery stats look that weird? They make no sense at all. Android system used far more battery in 5 minutes than the display in 40 Minutes... already tried different ROMs but its always the same... I'm sure the stats are wrong but why....

Right now I'm on LeeDroid with 30% screen brightness.

Thanks for your suggestions!
[Desire General] dinoalbert:
noob question.

I tried to follow the procedure....but how do I charge with power on? I tried but the phone turns off after a minute or so....and when I turn it on again, it goes to lockscreen. Is that the screen off only and still considered as powered on while charging? If so, how do I turn it off (for the 2nd step)?

thanks..
[Desire General] zoltrix:
Another day, another charge.

Today my phone has been unplugged for 13h 36m 39s

I did not browse the internet, i did not play games, didnt really text and didnt call anyone. i barely used the phone as phone.

I have 14% battery left.

Is it safe to say that i damaged my battery by doing this? Becuase my battery lasted me a bit longer than this before the calibration
[Desire General] DroidBois:
I'm making a bee line for this app!!!
[Desire General] miro666:
Ok, i was make this calibration method on my Galaxy. About one month was really exellent battery life,much better from stock time, but now is badly like earlier,before calibration. What is point? What i can more make?

Regards
[Desire General] peytral:
So after using siliconaddict's guide to calibrating the battery, I noticed no difference at all. After 3 hours of standby (absolutely nothing), the battery went from 100% to 91%. This seems even worse than before! Is it because I am on Amon Ra to do the wiping of the battery stats? I am running HTC stock froyo WWE.
[Desire General] maschenazi:
Is it any better with BatteryFu installed?

Has anyone tried any other battery saver app?
[Desire General] zacharias.maladroit:
@Lennyuk:

your advice in post #5

worked amazingly well so far ! :D

my battery-indicator went crazy since upgrading to Froyo (losing 1% every few minutes) - now it seems to be normal again

Thanks ! :cool:

also thanks a lot to vidler for posting :)
[Desire General] cyron_at:
Found this:

Calibrate the Battery

Basically, the EVO’s battery is not exactly optimized to give the best out of it. However, there is something you can do. Just like calibrating the screen, performing this process for the battery will improve its efficiency. This is a simple process that will only take a few minutes:

Preparing…

With the phone in the on position.

Fully charge the battery with the phone on… (until the led turns green.)

Once the led turns green, unplug the charger until the led goes off.

After the led goes off, plug the charger back in. When the led turns green , power off the phone.

now…. with the phone fully powered off…

1. Unplug the charger.

2. Wait until led goes off.

3. Plug charger back in until the led turns green. When it turns green, unplug the charger again and go to step 1.

4. repeat steps 1 and 3, 10 times. This may take anywhere from 30 seconds to 30 mins per cycle. Typically only about 1 minute. though.
[Desire General] drvdijk:
You didn't read the first post of this thread now did you?
[Desire General] looker1:
Just using few days JuiceDefender (free version) and it brought me up to 30hrs of battery life compared 18-20hrs before. Might help u as well
[Desire General] TH1882FC:
My battery is showing 100% but is on 4177 mV?

Is this because i reset the battery stats and it wasnt fully charged (even though i went through the green light on, switch off, plug in green light, recovery reset stats)?
[Desire General] Piero585:
hi there,im new on xda,i have one question,i want to callibrate battery on my desire,but the led dont want to go green...i have been charging it for 10 hours and its still orange...i have tried to wipe the battery stats...nothing changed
[Desire General] jannen:
Please dont bother... 'calibrating' the battery with above instructions will just make it worse!

The battery will work at its best after couple weeks of normal use (since new). The 'calibration' just takes you back to square one - and probably keeps you there. Better concentrate on what uses the battery.
[Desire General] MattSkeet:
Guys. I've noticed one thing.

When you charge your phone and lets say turn it off and on while charging after several incidents like this you need to recalibrate.

It like battery its charging when phone phone is off but nothing is saved in barter stats.

So it skips that period and when you turn the phone on it will charge but it will start to write the stats from the last moment phone was on.

Noticed when my battery charge dropped from 4177mv to less than 4100mv. Recalibration did the job.

I've been swapping sim cards several times while charging so its not because phone is faulty etc
[Desire General] Gibeon:
Recalibration worked for me, got 48+ hours on one charge, with light usage. Still, pretty impressive.

LeeDroid 2.2d by the way.
[Desire General] vukis:
Does anybody have recipe forv solution phone dying at ~10%

I tried recalibrating with wipe battery stats and without it with no luck
[Desire General] Cheery Giant:
Is it best to let the battery run right down until the phone switches off automatically before recharging on the very first few charges?

Thanks.
[Desire General] Judge584:
Let it die until it power off itself, then plug it and power it on immediatly.

Then, wait for it to be fully charged.
[Desire General] Stakkertoo:
My phone charged to the green LED, I then disconnected it. Powered it off, and then reconnected it to the power overnight, but it never went green.

After 10 hours it was still an orange LED.

(i have a double capacity battery, would this be an issue?
[Desire General] CrimzonEyed:
meh...
[Desire General] vukis:
Thanx, but I tried that with no luck :(
[Desire General] nehro:
thnx 4 tips

but i need someone who completly understand this also with the step of wiping stats cuz i didnt get when do i have to wipe after first time or second of turning off or on ??

in other way : just rearange me all steps including wipe stats

thnx in advance
[Desire General] gabbyevs:
hi newbie here be gentle!

im also new to android phones i am having problems with my battery life on my desrire hd i was just wondering if all this recharging and taking out the battery etc works?

also am a bit thick when it comes to these things how do i wipe the battery stats off ive been looking at my phone but cant find it

thanks for the help
[Desire General] gabbyevs:
any help with the above?
[Desire General] 3722:
There is a debate whether this method is working. Some users say it's terrific and other say it's nonsense. So you should try it yourself, it can't be any harm.

The battery stats can be wiped with a custom recovery.

The questions you've asked and many more are already covered in this thread.
[Desire General] gabbyevs:
sorry im new to all this and have only read a few pages

what or how do i do a custom recovery
[Desire General] Obelixossauro:
There is an application that does that instead of taking these steps? In Windows Mobile is ...
[Desire General] jamsterzak:
Ive tried a decent amount of reasonably sounding methods..and uhhh...I wouldn't put to much trust in any of this advice..although very knowledgeable people have posted it seems like a cloudy thread to me..I personally don't know the “correct" way to perfect calibration ... if it works ..don't fix it .. in my case....never again will wipe battery stats be touched
[Desire General] litening:
Battery issue fixed?

Guys,

For the first time in months I have been able to charge my battery to an mV level of 4192mV.

Normally couldn't get it to charge beyond 4172mV (which would drop to 4090mV in no time at all)

Sibere developed a fix for the automatic discharge while on wall charger. It will now continue to trickle charge when the battery is full.

People warn that battery life mght be reduced by keeping the battery at 100% for longer periods. Don't know if this is true, but don't really care. Batteries are cheap nowadays.

Anyway, If you had the same problem check out the follow thread.

[BATT Fix] Get your phone charged to 100% when you pick it up in the morning.

http://xdaforums.com/showthread.php?t=841580
[Desire General] mattics:
Everyone saying "all this does is change the way your phone reads the battery levels" is completely missing the point, while at the same being correct (at least as far as the statement goes).

Yes, calibrating does just change the way your phone reads the battery levels. As with many electrical devices using batteries, the way the device reads and the battery reports the levels can become out of sync.

You are not overcharging, or giving the battery extra power. All you are doing is allowing the battery to correctly tell the phone how much juice it has left.

The reason this is a good thing is exactly the same as the examples you are using to call this rubbish, you are saying things like "yes it may read 99% for 10 hours then drop off to 4%" etc. That is the point!

An uncalibrated battery will read incorrect levels, so your phone will shut down after x amount of hours of use because the phone thinks the battery has 5% left, when in reality it could have 10-15-20 or even more left. By performing these steps you are "re-syncing" the way the levels are read and reported. Nothing more!

Calibrating batteries is nothing new, many laptop manufactures have guides on their websites to show you how to calibrate the battery.

*Note: I have not performed these steps, but merely offering up my advice and views on the subject*
[Desire General] jannen:
Mattics... its the contrary. Following the instructions originally sent on this thread will make the battery life a mess. Do it and you get 100% for couple hrs and then suddenly it dies. The best way is to use a new battery for couple a weeks - then it will work optimal, no tricks needed.
[Desire General] Mesquire:
Is it supposed to be green all the way for the rest of the steps after the first?
[Desire General] mattics:
As I said, I haven't actually used this, I haven't got any battery issues so didn't feel the need to.

I admit I didn't have time to read all 50 pages, so you may indeed be correct. I am not saying this specific method works 100% of the time, as I haven't got anything to back this up. What I was getting at is that people were completely dismissing the idea of calibrating batteries, when the practice of calibrating batteries is widely regarded as a worthwhile practice, IF YOU NEED TO DO IT!

It normally amounts to (for laptops), turn on laptop and charge to full, leave charging for x (could be no time at all, depending on manufactures instructions) amount of time after full, use laptop until it turns itself off, charge back to full.

Apple

HP

Samsung NC10's have a calibration tool in their bios and steps in the user manual. Many many laptops do.

Now one VERY important thing to note is that these relate to laptops and not phones, laptops are far more likely to have sporadic charging and extremes in battery level in very short spaces of time, ie over a few hours rather than days. So calibrating will do a lot more for a laptop battery than a phone one.

If you are persistently having very bad battery I would recommend giving calibration a go before you buy a new battery.
[Desire General] OpenMinded:
how do i boot in recovery directly after boot?

does it matter if i boot first and do it from rom manager?

Probably some short keys to use to start directly in clockworkmod recovery?

Google did not help me, can you?
[Desire General] litening:
In ROM Manager make sure you have downloaded the Flash Clockworkmod Recovery.

Switch off device.

Turn on again by pressing "power" and "volume down" simultaneously.

Wait for Hboot screen.

Device will do a quick number of checks wait for those to finish (about 5 secs).

Scroll down to recovery using volume buttons and select "recovery" with the power button.

Screen with Red Triangle should pop up

Press volume up to enter flash recovery menu.

All done.
[Desire General] JohnnyBravo1000:
I did this once before prior to rooting and flashing. It did seem to make a difference. However, I didn't wipe the battery stats.

I've since rooted and flashed a ROM (LeeDrOiD 2.2F A2SD+) and am wondering if I should calibrate the battery again and wiping the battery stats.

It won't do any harm, will it?
[Desire General] cpt_crabs:
Hi, i'm a android HD2 user.

I post my reply here (even if it's the desire forum) because some other users posted the same tip on HD2 forum.

I tried this tip and I can say that it worked...but not for long time.

My currentWidget log showed me 100% battery for 7h20 (from 12.30am to 7.50am) .I said "WoW" BUT as i started to use the phone( and i just stopped my alarm at 7.50am) i saw my drain came back to normal---> 8.38am my batt is at 90%.

And now (5.10pm) my batt is @48%.wich is the normal drain for my device.

So this tip is (excuse me but i think it is true) USELESS.Because the first 10% just drain faster than it did without this tip.

I also tried it on my brother's desire and it is the same.

I think it just messes the reading of the batt stat.

I didn't wipe the battstats because I did it on an other build and it didn't change nothing.

And as some of you said the phones now shut off @ 10% for my brother's and 15% for mine.
[Desire General] veryjiggy:
I totally agree. People SHOULD NOT use this method. It has just f*cked up my battery. As many people pointed out, the phone remains at 100% for a long time, and then the battery depletes rapidly. But the most irritating part is the phone shuts down at between 10-15% battery levels. This is totally outrageous!
[Desire General] JPAndroid92:
Thanks!! increased my battery life alot! :D
[Desire General] RedSkyRoad:
THIS was probably the biggest mistake I could've done!!!!!

I had NO problems with battery life and indicator. I tried this method now my battery indicator drops 10% in under an hour!!!! What is going on???
[Desire General] rfec:
Well that's not working for me, the

LED is always green...
[Desire General] bamserl:
i always had a drop from 100% to 94% within minutes.

today i tried this, my phone showd me the green led and battery info said 91% charge - i turned it off and pluged in the power cord again. it took additional 40 minutes until it switched from orange to green.

after the second reboot it took only a second. i am eager if i get the drop again...
[Desire General] saad.dawra:
Well, i've changed my roms quite a few times and was experiencing low battery life. It did increase my battery life from an average 13 hours to around 19 hours and that's a lot of relative positive change. But, at around 15% while i was using it displayed a 1% message and immediately turned off!. Overall i'm pleased with the battery improvement and i think eventually the battery drop issue will fade out with use.
[Desire General] topjor:
saw this link in wildfire part and checked it out

gona try it at the end of the week:D

<htc wildfire (rooted)>
[Desire General] jannen:
Please dont try it, you been warned! I think this thread should be removed to be honest, more and more people just screwing their phone up!

Just read through the comments and you will see this results in tears. Those who say it worked tell battery stays at 90-100% for ages then suddenly phone goes dead. Theres no gain the battery actually gets worse and you cant trust the indicator anymore.
[Desire General] Hilarium:
I haven't ran into any of these problems after calibrating my phone.
[Desire General] topjor:
Ok thanks

But is that only for the part on wiping the batery data or everyting??
[Desire General] goister:
Hmm weird, I charged my phone overnight while it was switched on (actually just a few hours, don't get much sleep nowadays), and JuicePlotter shows a very steep straight line or less than 1.5 hours from ~30% to fully charged at 100%. For the next 3 hours it stays pegged at 100%, and doesn't discharge/charge from 100-90-100% like yours...

Mine is a stock unrooted Desire Z though, but I don't think it should be much different?

Also, does JuicePlotter or Overcharged consume much power? I'm using Batteryminder as my battery indicator now, but it doesn't show the battery voltage.
[Desire General] O Sophos:
4118 to 4182mV. Thanks a lot!
[Desire General] wonkk:
Hai.

So, after having desire for 3 weeks, decided to do this trick OP is mentioning.

Well, i failed since my LED went straight to green after step 1. I cointinued anyway, with no brown LED showing at all. So, i drained battery to 90% then, turned it off and connected charger.. Disconnected it when it turned green, powered it on, and heck im now at 40% after 24h and some medium usage(music, surfing, chatting, talking and played some chess.. connected to network for about 20hours, weather sycing every hour, and gmail sysncing also..)

Before it would come to 40% after about 15 or less hours with even lighter usage..

Im on unrooted froyo 2.2, using gsm only connection as my 3g signal is very weak and thus is eating my battery unecessary..

Will report if something goes out of the orders..

Cheers
[Desire General] goister:
OK so I finally rooted my Desire Z. How does one wipe the battery stats with Clockworkmod? I'm assuming it's Clockworkmod ROM Manager coz that's the only similarly named app I see in the Market. I downloaded the free version and chose "reboot into recovery" but it just showed a picture of a phone with a red exclamation mark in a red triangle and hung there.
[Desire General] alex_hk90:
You need to flash the recovery first.
[Desire General] ukanth:
I tried this with my HTC desire & it seems like working well ( 100% for last 2 hours )

I'll try it for next couple of days with heavy usage like GPS,Wifi,3G and report it back here. Also I'll verify the sudden turn off ( like at 15% or less on battery)

Thanks for this method.
[Desire General] O Sophos:
I've charged my phone overnight. With charger plugged in, I checked my voltage and its 4202mV! I was shocked so I immediately pull out the charger and the reading dropped to 4192mV. Is this normal? Or is my battery going to spoil if I continue to charge overnight?
[Desire General] axial.jc:
Excuse me but, may I know where I can find this mod? Does it require any other software to run? Pardon me but I'm new to this.
[Desire General] jannen:
ukanth:	"I tried this with my HTC desire & it seems like working well ( 100% for last 2 hours )"

- think should ring the bell if battery is at 100% (ie full) for hours even if you are using it....!

O sophos - 4192mV seems to be the usual max reported for Desire
[Desire General] O Sophos:
someone else said 4197mV. But that's not the main point. the main point is it was 4202mV when connected to charger! Is that normal? Should I concern?
[Desire General] Simba™:
Thank you mate, nice!
[Desire General] craigi:
Why is this specific to the desire?
[Desire General] ukanth:
@jannen, Yes. It does, two hours it was completely in standby mode(no calls and screen off). It doesn't work next time .
[Desire General] marko hacker:
Turn your phone on and charge it for 8 hours or more

Unplug the chargerTurn your phone off and charge it for one hour

Unplug the chargerTurn on the phone and wait 2 minutes

Turn your phone off and charge it for one hour

Unplug, turn it on and use as normal.* Your battery life should now be a lot better
[Desire General] laguapa:
Im so annoyed.

Gosh... this 'calibration' seriously made me and a colleague's batteries worse! I cant believe how I was stupid to try this. Yes I got battery staying around 90-100% most of the day. But then it suddenly drops and dies. Before the 'calibration' it lasted 48hrs easily with my normal usage.

These instructions just messes how the phone reads the battery, does not improve it and really... how could it possibly do? I was stupid and learned my lesson. Luckily got spare battery and it seems to give almost twice the juice my now trashed 'supposedly calibrated' battery. Awww:mad:
[Desire General] niksha89:
i tried it few times to get the battery actually fully charge to 100%. it mostly worked, but sometimes it gets stucked on 100% for obviously too long time, and then it shuts down on something like 15% instead of 3% or less.

so i still wonder if this method really works
[Desire General] undercover:
Just drain it till the phone shuts down and you should be OK.

Sent from my now not rebooting on its own HTC Desire
[Desire General] Banana.Pancake:
I have 2 questions:

Do we need to calibrate our battery 1 or 2 times in the month?

Do we need to wait that the battery is empty (or 5% left) to charge it?
[Desire General] honestkiller:
problems with vodafone live gprs on htc desire hd

havin prob with gprs on htc desure hd(vodafone)

i cn only browse and not use app includin market n gps n or any other app

should i move to airtel or there is any solution

plz help
[Desire General] laguapa:
Tinky1.. nope its not working. Followed the rules exactly - now there are two of us whos damaged their batteries. Glad I have a second one it gives juice twice as much as the other one after the 'calibration'.

Whoever invented it is laughing all the damage he/she causing to others... shame on me I was stupid to try this.

Bottom line is: use your battery from new for about two weeks (normal use) then you have 'calibtrated it' and it has reached its maximum potential.
[Desire General] Fig Bucker:
My Desire powers off at 10-15% ever since I rooted and changed ROM to OpenDesire. Since changed to LeeDroid 2.3 and it's still the same.

I came here to see if this would fix that but it seems like it won't as it's created this problem for people who didn't have it before.

Anyone else do this on a rooted custom ROM phone and get it calibrated properly and decharging to 2-3% before powering off?
[Desire General] lvnatic:
@silliconaddict im getting a similar problem as willexmen, with the voltage value, which is actually lower. No matter how long I charged it, it didn't get past 4182, and that after a whole night charging. At 1st use I didn't notice the slightest difference after calibrating, however today when I charged it from 0% (dead) to full, it took much more longer to get to 100% then before, so IDK maybe it will last longer tomorrow. And now, after 2 hours since the LED is green, the voltage is at 4157, even lower then yesterday.

And I also got the green LED while charging turned off, but I left it for 1 hour. Did this both times but the LED was green.
[Desire General] erklat:
It can occur on some occasions that mV value actually goes up slightly when you disconnect. Happened to me once or twice, jumped from 4152 to 4192mV.
[Desire General] lvnatic:
Highest I can get is 4182, no matter if its plugged or unplugged. Did the test today btw, no result, calibrating didn't improve my batery at all, its same as before.
[Desire General] calyco:
Should have read latest comments on thread first, calibration didnt really work for me either. Lasts the same amount of time for me, 24hours medium usage to 5% battery and then I plug in charger. Actually I was getting 4192mV but now only 4172mV, a little annoying but I guess if it lasts the same amount of time then its OK.

Great forum btw, lots of info and very helpful for those (like me) who are new to Android :)
[Desire General] lampz:
I tried to turn off my dhd and when its of then i plugged in my charger it boots up to clockwork recovery... how cn i do this without my phone automatically bootup to the bootloader or cwr?

sent from my DHD

androind revolution 2.0.11

xda developer application
[Desire General] RoryHa:
Is this not the same as 'Bump Charging'?

They seem to claim it may cause some long-term damage to the battery

Article on bump charging here: http://www.androidpolice.com/2010/12/14/your-battery-gauge-is-lying-to-you-everything-you-need-to-know-about-bump-charging-and-inconsistent-battery-drain/