yashsingh1/xdaforums huggingface dataset:
[Desire HD General] Leviathan77:
The calibration process lets the phone know which actual battery voltage means 100% and which means 0%. There's nothing happening to the phone hardware or battery. In a best case scenario your different batteries have roughly at the same voltage levels for 'full' and 'empty', meaning that you can switch them around and the phone data will still be well matched to them; in a worst case scenario their levels differ greatly, and android makes incorrect assumptions about your remaining power, shutting off early.

That's my take... a pro correct me if I'm wrong.

Happy new year,

Lev
[Desire HD General] andreipga85:
Hello Mates,

seems like for some time now i can not find a solution to this problem.

for some time now i have some problem with my battery drain. everithing i do seem not to be good. i was able to get 2 days with my normal usage, now i can not get even 1 full day.

i don't know what the problem should be.

i have attached some screen captures from batt usage and current widget.

before blame me i can say that i tried everything: ( inculding fastboot tool), differnt radios, diffrent roms, etc.

i just can not get it.

thanks a lot

regards
[Desire HD General] ferincr:
@ Leviathan77,

Thanks, That's what I thought it really was more like calibrating the phone rather than the batt... so the phone knows when to stop charging (but not before) to warrantee real 100% juice in the batt.
[Desire HD General] a user:
well it goes in the right direction.

the min and maximal value is not really learned. the kernel knows this values directly.

though the system has to learn how the voltage decreases over time. it does not decrease linear so it has to take that into account when showing the %-values.

and this is what the phone learns with this, it learns how to compensate the non-linear drain to show a linear decrease of %-battery load values.
[Desire HD General] Shaun.W50:
I'm confused here, might be stupid question. What is the newest ROM becaae i see 6.1 is but under that there all these builds that say 9.9.3. Can someone post the newest the build download link please
[Desire HD General] Black1982:
I need to see your battery drain measured in mAh. Post a log from current widget or battery status widget. Also install Betterbatterystats (see my sig) and read that op.
[Desire HD General] k0zmic:
This is interesting regarding battery calibration: https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
[Desire HD General] stuart0001:
I suspected as much a while ago:
[Desire HD General] knoobie:
What would you guys do if you see a high drain when making phone calls?

I made a 20 mins call and afterwhich I notice my battery dropped 20%. Is that normal?
[Desire HD General] longfeng:
any proof? we can analyze from there.
[Desire HD General] knoobie:
I just wipe my logs.. :( I know it is definitely happening as that was the first thing I did on my phone this morning. After which the battery dropped to 70%.
[Desire HD General] longfeng:
with nothing to analyze, perhaps your network coverage in your area is bad.
[Desire HD General] owziee:
Damn you were right, the htc sense account just did that to me, I should've taken your advice more seriously :(

Now I'm homeless and completely alone... What can I do now? Sue HTC?? The police refuses to put my HTC device in jail, they say phones are banned in there!!?! Maybe I should fry it slowly in the microwave owen??

Any advices please... Right now I feel like I just want to kill myself :(
[Desire HD General] longfeng:
HTC sense account...

Have you sense it?
[Desire HD General] alien44:
Hi. I (think) have problem becouse my log from Current Widget looks like this:

2012/03/04 02:00:53,-42mA,59%,3.843V
2012/03/04 02:01:53,-38mA,58%,3.843V
2012/03/04 02:02:53,-38mA,58%,3.846V
2012/03/04 02:03:53,-46mA,58%,3.84V
2012/03/04 02:04:53,-36mA,58%,3.843V
2012/03/04 02:05:53,-42mA,58%,3.84V
2012/03/04 02:06:53,-36mA,58%,3.843V
2012/03/04 02:07:53,-36mA,58%,3.843V
2012/03/04 02:08:54,-46mA,58%,3.84V
2012/03/04 02:09:54,-80mA,58%,3.831V
2012/03/04 02:10:54,-126mA,58%,3.822V
2012/03/04 02:11:54,-136mA,58%,3.825V
2012/03/04 02:12:54,-86mA,58%,3.834V
2012/03/04 02:13:49,-481mA,58%,3.75V
2012/03/04 02:14:49,-130mA,57%,3.807V
2012/03/04 02:15:49,-70mA,57%,3.825V
2012/03/04 02:16:49,-64mA,57%,3.828V
2012/03/04 02:17:50,-50mA,57%,3.831V
2012/03/04 02:18:50,-52mA,57%,3.834V
2012/03/04 02:19:50,-46mA,56%,3.828V
2012/03/04 02:20:50,-40mA,56%,3.834V
2012/03/04 02:21:50,-38mA,56%,3.834V
2012/03/04 02:22:50,-48mA,56%,3.831V
2012/03/04 02:23:50,-54mA,56%,3.828V
2012/03/04 02:24:50,-48mA,56%,3.831V
2012/03/04 02:25:50,-42mA,56%,3.831V
2012/03/04 02:26:50,-36mA,56%,3.831V
2012/03/04 02:27:50,-48mA,56%,3.828V
2012/03/04 02:28:50,-40mA,56%,3.831V
2012/03/04 02:29:50,-48mA,56%,3.831V
2012/03/04 02:30:50,-36mA,56%,3.831V
2012/03/04 02:31:50,-142mA,56%,3.813V
2012/03/04 02:32:50,-42mA,56%,3.828V
2012/03/04 02:33:50,-46mA,56%,3.828V

My rom is Android Revolution HD 6.3.1 XE with 11.69.3504.00U_11.22.3504.07_M radio and FW 3.30.401.101

Why log is so strange?

Why i can't charge my sensation to get 0 (i read its the best moment to calibrate the battery)

Please help because the battery life is terrible :(
[Desire HD General] Charles Collins:
sorry for daft question but how do I post my log file in a post?

also Spare Parts doesn't work, is there an alternative that does?
[Desire HD General] Davidian-SK:
Great guide!! Very useful!!
[Desire HD General] dejson:
read first post

Not plug it off when the led turns green, but when Current Widget stops reporting a charge (it slowly decreases).
[Desire HD General] santroph:
I have posted another thread about my Batt drain, a huge one, but since I don't get help there, I came here.

Take a look at my current widget log (a small part of it, but a curious one)

Sorry for the size of the post, but this is really curious, why woudn't the batt go lower than 30% with that huge drain? And why all of the values are the same always in a full hour?

I'm starting to think that current widget is not working with my phone and giving me headaches for nothing.

Here is my thread, for some help please.

2012/05/15 00:02:47,-294mA,30%,3.672V

2012/05/15 00:03:48,-385mA,30%,3.666V

2012/05/15 00:04:48,-385mA,30%,3.666V

2012/05/15 00:05:48,-385mA,30%,3.666V

2012/05/15 00:06:48,-385mA,30%,3.666V

2012/05/15 00:07:48,-385mA,30%,3.666V

2012/05/15 00:08:48,-385mA,30%,3.666V

2012/05/15 00:09:48,-385mA,30%,3.666V

2012/05/15 00:10:48,-385mA,30%,3.666V

2012/05/15 00:11:48,-385mA,30%,3.666V

2012/05/15 00:12:48,-385mA,30%,3.666V

2012/05/15 00:13:49,-385mA,30%,3.666V

2012/05/15 00:14:49,-385mA,30%,3.666V

2012/05/15 00:15:49,-385mA,30%,3.666V

2012/05/15 00:16:49,-385mA,30%,3.666V

2012/05/15 00:17:49,-385mA,30%,3.666V

2012/05/15 00:18:49,-385mA,30%,3.666V

2012/05/15 00:19:50,-385mA,30%,3.666V

2012/05/15 00:20:50,-385mA,30%,3.666V

2012/05/15 00:21:50,-385mA,30%,3.666V

2012/05/15 00:22:50,-385mA,30%,3.666V

2012/05/15 00:23:50,-385mA,30%,3.666V

2012/05/15 00:24:50,-385mA,30%,3.666V

2012/05/15 00:25:50,-385mA,30%,3.666V

2012/05/15 00:26:51,-385mA,30%,3.666V

2012/05/15 00:27:51,-385mA,30%,3.666V

2012/05/15 00:28:51,-385mA,30%,3.666V

2012/05/15 00:29:51,-385mA,30%,3.666V

2012/05/15 00:30:51,-385mA,30%,3.666V

2012/05/15 00:31:51,-385mA,30%,3.666V

2012/05/15 00:32:51,-385mA,30%,3.666V

2012/05/15 00:33:51,-385mA,30%,3.666V

2012/05/15 00:34:51,-385mA,30%,3.666V

2012/05/15 00:35:51,-385mA,30%,3.666V

2012/05/15 00:36:51,-385mA,30%,3.666V

2012/05/15 00:37:52,-385mA,30%,3.666V

2012/05/15 00:38:52,-385mA,30%,3.666V

2012/05/15 00:39:52,-385mA,30%,3.666V

2012/05/15 00:40:52,-385mA,30%,3.666V

2012/05/15 00:41:52,-385mA,30%,3.666V

2012/05/15 00:42:52,-385mA,30%,3.666V

2012/05/15 00:43:52,-385mA,30%,3.666V

2012/05/15 00:44:53,-385mA,30%,3.666V

2012/05/15 00:45:53,-385mA,30%,3.666V

2012/05/15 00:46:53,-385mA,30%,3.666V

2012/05/15 00:47:53,-385mA,30%,3.666V

2012/05/15 00:48:53,-385mA,30%,3.666V
[Desire HD General] kush4u123:
Same here. It just doesnt go to 0. I kept the phone plugged in to the charger even after 4-5 hours after 100% charged. But it keeps at 2mA or 1mA
[Desire HD General] zenga:
1 1/2 day

Is one and a half day a good battery life?

Sorry, but i'm new at Desire HD.

Thanks
[Desire HD General] stuart0001:
That's like asking "I've got 2 foot of string, is that long enough? "

It depends on how much you use your phone and what for.
[Desire HD General] Teichopsia:
Let me put it this way. If you were with the stock rom you would be charging your cell anywhere between 1-3 times a day, depending on your use of course.
[Desire HD General] zenga:
Regular use. Wifi, mobile network, angry birds:o ....
[Desire HD General] Galaxo60:
Someone that can help me?

http://xdaforums.com/showpost.php?p=26627348&postcount=71483
[Desire HD General] krzych:
I would check any geolocation loggers if you have ones explicit (network location positioning uses your data connection which drains battery quite much, 20mA minimum). If not, check your network signal strength. If it's really low like mine near my bed, it can drain battery too to save the connectivity, but it depends on radio too, on the rom i suppose too (since I have CM7, no problems with range), so it depends.

Most usual scenario is: you installed an app which does something cool and forgot about it, then, you noticed the drain not connecting it to the app.

It's unusual for the ROM itself to drain the batt just like that (nor radio).
[Desire HD General] Kenchinito:
sup guys, I know this is not my forum as I have a HTC One X, but Mike (Android Revolution creator) links us here so I have a few questions

My device never actually reaches 0 mA on the widget, the lowest it has been is at 38 mA, even when the log says 100% battery. Any ideas? Also, I cannot see the CPU usage on my device as you show in the screenshots. Could I still do something?
[Desire HD General] Cashreedhar:
+1

I am on DHD using pacha's xtreme surprise with rcmix kernel undervolted..I never saw 0 mA on my phone..when not in use generally it stays between 60 to 150, while on sleep between 30 to 60 mA..losing 1% per an hour drain while on sleep..is it normal?

Also while browsing if any other app is running in background it hits 350 mA sometimes
[Desire HD General] a user:
what charger are you using? the original HTC wall charger or are you charging via usb?

record a log with current widget while screen is off for an hour or better 2 and upload it to a new post as attachment.

that sounds pretty normal. depending on the web sites it can cause quite heavy load on your phone.
[Desire HD General] RASTAVIPER:
With currentwidget I see always 0ma if I leave it on charger long enough, even after the phone gets 100%.

Produced by NookColor at ICS 4.0.4
[Desire HD General] lateral18:
big question

I fallow the guide to install roma , it works , but lately, the battery is pretty . It rallies the guide lines . Until android OS that is the name of the process , decides to kick in and uses all the cpu therefore draining the battery .

Does any body knows what that is , that happens with all the roms I have run , right know , the phone has the energy Rom, mods are , V6 supercharger , amaze camera mod. Neok kernel . The radio is 04.14 with matching ril (flashed manual).

Even she the phone is.using all the cpu is pretty smooth , which I think is amazing , but drains the battery.even with the screen off
[Desire HD General] nkojic:
CurrentWidget on my one x doesnt show nothing?? I installed this and the aplication show on my home desktop but it doesnt show nothing?? Why??
[Desire HD General] wilken:
:laugh:

Excelent post! Help me a lot! Thanks! :highfive:
[Desire HD General] Illux:
Oh...and they believed it was suicide :o...
[Desire HD General] Dtrieb:
can be delete!
[Desire HD General] prabhjots:
I know this isn't the correct forum, but I really need help from the experts:

http://xdaforums.com/showthread.php?t=1727540

The same issue has been reported on numerous other websites:

http://www.ibtimes.co.uk/articles/359422/20120704/samsung-galaxy-s3-performance-issues-roundup-overheating.htm

Link 2

Link 3

Link 4

Really need help!!!
[Desire HD General] Kremata:
AMAZING post. Following your directions I passed from a 10hours battery life to 30hours.

Thanks a lot man
[Desire HD General] red de0392:
hey Mate...

i ve charged my phone to 100% in the morning say around 10am...and m still charging it because the the current widget has nt yet gone till zero m.ampere...nw its 4.30 in the evening...

is this normal....

Please help me with it

Thanks in advance..cheers...
[Desire HD General] ThunderDesire:
Dude unplug your charger & restart your phone then plugin your charger, your readings are not proper....It never took that much longer time to show 0mA reading on my Desire HD.
[Desire HD General] red de0392:
I checked with better battery stats... Media scanner and audio_02 is consuming much battery..is there any to fix them ?
[Desire HD General] silentvisitor:
This is a repost of this to have a wider and more technically sound audience and advice. My apologies if something inappropriate.

Hi,

First of all BIG THANKS for writing this up.

I am having severe battery drain issue and haven't been able to fix it. Maybe you could help me.

My current setup :

1. Android firewall

2. Custom HOSTS file

3. Greenify

4. XPrivacy

5. Wakelock detector

6. GPS, 3G, Locations, Auto-Sync - OFF. WFi ON 24hrs.

I came across your and other linked article.

I was on Sense 4+ on HTC Sensation and my reading was consistently between 285mA - 886mA. I decided to try your method.

I flashed CarbonRom (JB 4.3) with FULL WIPE (I always do). Put CurrentWidget and voila.............reading is still between 84mA(yup improved) - 668mA

I am running WLD to gain some wakelock statistics to show me.

Another thing is that my battery wouldn't show Charged even after 7hrs but if I reboot its 100%. Sometimes I keep it on charging for 2hs (from 2%) and then reboot and it will mostly show 100% and Green LED.

Need advice !

Thanks to everyone in advance !!!
[Desire HD General] sohojmanush:
A screenshot of current widget showing full charge will be much appreciated :D..application changes so as their appearances...
[Desire HD General] Police666:
is this still relevant on android 4.xx upwards ?

thanks
[Desire HD General] Hidden-Hunter:
Hi

How much more time the battery is used?
[Desire HD General] BorisDeviant:
Guys, to give a "conclusion" to this thread I wrote more than 3 years ago (!).

Most of the advices given in the OP are now irrelevant.

What you need to keep in mind to save juice :

- always look for wakelocks. In a word, look for apps that prevent your phone from going deep sleep. A useful app for this purpose is BetterBatteryStats

- use Greenify. The prupose of this app is to "hibernate" apps to prevent them from silently waking your phone (even if the screen remains off). Be careful with the app you select for "Greenification", you may experience weird effects. For example, do not greenify your Keyboard, or your SMS app... You can typically Greenify any which you do not expect to generate notifications (games, file explorers and so on)

- you can also use an app to switch wifi / 3g connectivity according to rules (hours, places, etc)

Following these simple and common-sense advices, you should be as battery efficient as you can. :good:
[Desire HD General] saidkouki:
thaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaanks
[Desire HD General] sixline:
I don't know if its already mentioned in this forum or not but Die Hard Battery Calibrator from zeppelinrox is a very good tool for battery calibration. Download: http://xdaforums.com/showpost.php?p=18703418&postcount=5021
[Desire HD General] zerhou:
i'll try these tips today and see if they work ... the battery is a hell of a problem for desire hd
[Desire HD General] zerhou:
it looks like it worked for me ... a bit ( extended at leat 20 mins or so)

anyway thank you so much :good: :good:
[Desire HD General] Sym0nd0:
Thanks, I'll give this a whirl on my One and see if it makes any difference.
[Desire HD General] SakreD:
I did a full wipe and freshly flashed ViperOne. The only app I installed after initial setup is CurrentWidget. I'm still charging the phone but this is what the log shows so far. This isn't normal is it?
[Desire HD General] bilawals22:
I get the same thing. My mA is in the 1000's and not in the 10's or 100's. Anyone have any idea why?
[Desire HD General] Bostogne:
Still happy with my Anker battery (1900mah). I would recommend this to anyone!

Can the zppelinrox calibration be used to calibrate this battery also?
[Desire HD General] chris283:
Sorry

Sorry but I need to be able to post in the dev section so I have to hit the 10 mark somehow
[Desire HD General] Keomas:
Li-ion battery feels better if it's not fully charged. You charge it below 100% and unplug the phone, the battery gets a longer life this way.
[Desire HD General] BorisDeviant:
16 % in 9 hours is not that bad ! But I confirm there is still room for improvement.

Did you find anything odd in your battery usage statistics ? (point 2. of the Guide)
[Desire HD General] 20mark:
thank you DarkAdrien :)

from what i see,telephone and android system are the most battery hogs.

and there is a process called "0"..what is that?

there is a way to find out what process is killing my battery? i think is related to network usage,not to cpy cycles..maybe setting to GSM only will prevent phone to search for 3G network? i have full 3G signal where i live,though.

this is what i got:
[Desire HD General] BorisDeviant:
To eliminate any data-connection related issue, you should let your phone asleep with data connection off. And see if battery drain is improved in the file log.

Having a look at your screenshots I don't see anything odd. I also have a "0" process in Network Usage but when I select it to see the details, I get a force-close.

Did you have a lot of phone calls or a very long one ? The only strange thing could be the % of network your phone process uses.
[Desire HD General] leith51:
I did everything to the letter in the first post and now I've got more battery drain than before I was getting between 2-3% an hour before and phone was lasting 18 hours + now I'm getting nearly 10% per hour wtf

E=Mc2
[Desire HD General] cattleprod:
the 0 in spare parts is the / (root) partition in the android system
[Desire HD General] craigdhd:
This was an interesting, informative thread, thanks. You should really edit the title though (beware, may be boring) put me right off reading another rant on poor battery life which this definitely wasn't.
[Desire HD General] pavlovian:
^^ Seconded, great thread and very helpful
[Desire HD General] Bunk:
Thanks for this great guide! I'm monitoring now :)
[Desire HD General] rgrover:
Oh dear I didn't find this boring :eek:
[Desire HD General] dcro95:
I used Spare Parts to identify software wich drain my battery, and wavelock seems to be the problem ...

What is this software, how to correct the problem ???

Thanks
[Desire HD General] BorisDeviant:
Odd. Which processes are eating your battery ? Can you identify one or more in Spare Parts ?

I think the 3G signal where you are is not stable strengthful enough, so your phone keeps switch between 2G/3G which was causing the battery drain.
[Desire HD General] BorisDeviant:
Is is Wavelock or Wakelock ?
[Desire HD General] BorisDeviant:
As advised, I change the topic name for something a bit more attractive ;)
[Desire HD General] CitizenLee:
Following on from my previous *#*#4636#*#* tip to access battery info without Spare Parts - If you use BetterCut, you can create a direct shortcut to the battery info page. Simply open BetterCut and look in the Activities list for something called "Testing". Now you can create a homescreen shortcut to it ;)
[Desire HD General] BorisDeviant:
Again, thanks for this tip. I added your post to the first page. If this is copyrighted, please let me know ;)
[Desire HD General] ringrover:
mate ...

some steps could not be done ... it is not clear the explanation :confused:

and the app currentwiedgt.. i dont know how to used it ???:(
[Desire HD General] CitizenLee:
Haha, your welcome.

Only really useful if you use BetterCut, but a lot of people do for customising homescreens etc.

Just another thought - AnyCut might do the same job, which is the free version of BetterCut ;)
[Desire HD General] dcro95:
Sorry ....

It is wakelock !
[Desire HD General] BorisDeviant:
Ok, so basically an app has called the Wakelock state which prevents the phone from going standby. AFAIK the only workaround is to reboot your phone. To permanently fix this issue you will have to find the app that called this state.
[Desire HD General] Mastersey:
You can also use "Any Cut" (

FREE

) app to create shortcuts to anything !

Select "create shortcut" (from the Home), then:

=> "Any Cut", "Activity", then:

=> Select "Test" in the list.

:)
[Desire HD General] leith51:
nothing was being used in spare parts it was android system and display on thats it using os monitor the cpu was only running at between 7%-10% and that was the app os monitor since i was using it!!!!!

after a few trial and errors i finally found a different way to fix battery drain using part of your method and my own because now when screen off my phone using 1ma battery reading 23hours usage at 96% its been 3 hours since i unplugged and only lost 4%

my way was to discharge to 4% battery then do the root explorer delete the battery.bin then charge to full using current widget 0ma and hey presto 4% loss in 3 hours and yes i have used it with wifi on also 3g but i do have juice defender which turns the 3g off when the screen off
[Desire HD General] Fihlvein:
Thanks to OP for this post, it's very useful. CurrentWidget rocks.

I have to say that I'm getting really good results with following combination:

- Leeroid 1.5.1

- Overclocked to maximum, using Smartass governor.

- Wifi, bluetooth & GPS disabled

- 3G disabled

2011/02/03 14:01:49,-1mA,89%
2011/02/03 14:02:58,-1mA,89%
2011/02/03 14:12:51,-1mA,89%
2011/02/03 14:17:16,-1mA,89%
2011/02/03 14:18:29,-1mA,89%
2011/02/03 14:28:22,-4mA,89%
2011/02/03 14:33:00,-3mA,89%
2011/02/03 14:43:42,-1mA,89%
2011/02/03 14:47:15,-4mA,89%
2011/02/03 14:48:31,-4mA,89%
2011/02/03 14:54:47,-4mA,89%
2011/02/03 15:01:50,-1mA,89%
2011/02/03 15:03:01,-4mA,89%
2011/02/03 15:12:53,-1mA,89%
2011/02/03 15:18:01,-3mA,89%
2011/02/03 15:27:53,-1mA,89%
2011/02/03 15:32:16,-3mA,89%
2011/02/03 15:34:18,-3mA,89%
2011/02/03 15:42:37,-1mA,88%

I have to say that when I was driving to work, CurrentWidget recorded quite _high_ consumptions (3G on):

2011/02/03 09:01:55,-46mA,97%
2011/02/03 09:02:55,-53mA,97%
2011/02/03 09:06:07,-53mA,97%
2011/02/03 09:09:02,-196mA,97%
2011/02/03 09:12:02,-71mA,97%
2011/02/03 09:17:50,-18mA,96%
2011/02/03 09:21:27,-18mA,96%
2011/02/03 09:25:03,-8mA,96%
2011/02/03 09:26:41,-137mA,96%
2011/02/03 09:30:06,-143mA,96%
2011/02/03 09:31:31,-40mA,96%
2011/02/03 09:32:50,-149mA,96%
2011/02/03 09:35:24,-149mA,96%
2011/02/03 09:44:52,-5mA,96%

Probably since on the way the 3G cover gets very weak at some parts, so that will consume more phone battery to receive the signal.

I'm now going to drive back the same route with 3G disabled and see the same consumption.
[Desire HD General] BorisDeviant:
This is typically a situation where flashing a new radio *could* help. But there is no universally better radio, you have to try and test a few ones...
[Desire HD General] Carl10r:
Very informative and well thought out topic. Got the info and the tools to go away and monitor what's going on.

Carl
[Desire HD General] Nikola P.:
I am constantly getting 11mAh on stand by.

On partial wake usage, I have Facebook, Dialer, Android System, Google services, Twitter, Gmail. I have wifi and data off.

Is this the reason? I set Facebook and Twitter not to sync, are they somehow, when phone is on stand by, trying to connect and killing my battery?
[Desire HD General] wbbigdave:
gah! I always feel like you are mocking me Lee :D

I am so paranoid about my phone I always charge at night, so i can never get proper results, but no where near your performance...do you have link to the kernel that you are using?
[Desire HD General] panyan:
"[GUIDE][NOT SPAM] Enlarge your..." - sounds uncanily like an email i get :p