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I think I've discovered a bug on the X that's causing battery drain.
I installed Spare Parts and saw my phone had been unplugged for about 12 hours and that my phone was been Running (not sleeping) for 100% of that time.
After being methodical and getting data points after opening various programs, I determined that after I opened any program that accessed the GPS, the phone no longer would go into sleep mode.
To get the phone to start sleeping again, all I have to do is toggle GPS off and then back on again.
It's completely reproducible every time on my phone.
Now, I don't know what kind of effect this will have on battery life, but seems like it probably would have some effect.
If others can test this and see if it affect you at all, it'd be helpful to see if there's a potential major software bug here or if it's just something with my phone.
Easiest way to test is to start with a fresh reboot with GPS toggle on, install Spare Parts, plug in the phone for a second (to reset the counters), let it sit sleeping for a few minutes, then read the Running % in Spare Parts. Should be pretty low. Plug in the phone to reset the counters again. Then start Google Maps or any other program that will activate your GPS. Close that program and then let the phone sit idle for a few minutes. Check Spare Parts running time again and, for me, it's pegged at 100%.
It stays like that until I toggle the GPS off or reboot the phone.
Very curious to see if others get the same results.
lexluthor said:
I think I've discovered a bug on the X that's causing battery drain.
I installed Spare Parts and saw my phone had been unplugged for about 12 hours and that my phone was been Running (not sleeping) for 100% of that time.
Click to expand...
Click to collapse
I'm not trying to flame... but, after 12 hours your phone was unplugged, and still working... battery drain doesn't seem like a huge issue for me based on this information.
I would recommend an app called Tasker. I use it to turn gps off when it's not in use. I open google maps, gps starts. I close maps, gps off. I put my phone into the car mount, bluetooth starts, gps on, pandora on. unplug it, then everything off. I can have the cell radio off at night, but come on every 30 minutes to check for sms, email or whatever. I have Wifi turn on automatically when I get home, based on gps of course, and when I get out of the car, gps turns off and wifi turns on.
It saves a ton of battery for me, and might be something you'd appreciate. I have my phone running on performance mode all the time, and it still lasts all day and has 30+% to spare when I go to sleep. I'm a heavy user. almost 4GB of data this month with no tether.
That's not really the point.
The point is that there's potentially a bug with the phone that's not allowing the phone to go into sleep mode.
Seems like that might be a pretty important thing.
Point blank, the Droid X is one of the only Androids who last more than on day on the same charge! And what you all don't know is that if you use the blk taskbar and services.jar V.8 from teenfaces you will literally double or triple your life!
I have been unplugged for about 7 hrs and still have a sturdy 70%. All this with a normal discharge rate of about 5% every hour! That'd not bad! But then you have ATK set to aggressive... then the batt manager set to smart then cache mate running at full blast clearing caches every half hour. Plus the apps are killed and shut down when te screen ia off! So technically the X is dead till you power it up!
Take a look... I promise many will agree, that is if they did it right and are using V8.
Sent from my DROIDX via Telepathic DLNA.
What in the world is services.jar V.8 from teenfaces?
Ok, so then both of you are saying that the fact that the phone doesn't ever go to sleep once the GPS has been activated (even after the program that did so exists), isn't an issue?
Seems to me that you can only further improve battery life by having the phone sleep when it's not being used.
But who am I to argue I guess.
Seems like you dint understand my previous post. There is mod to change the task bar and shade. Like V8 is the latest with the services.jar replacment. Now how this affected my batt life i don't know, but, it did.
Now i see a lil longer batt life than with the original items.
Sent from my DROIDX via Telepathic DLNA.
this post is hilarious.
homeboy is trying to get bug testers, and people are talking about how to change the color of their taskbar : /
ixobelle said:
this post is hilarious.
homeboy is trying to get bug testers, and people are talking about how to change the color of their taskbar : /
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Click to collapse
Lol yea. Im gonna head home and try what ur saying. I use tasker for turning wifi on and off for maps and the new google places thing (because most of the time im in buildings) but maybe i should use it for gps too. My friend with the evo has his turned off all the time he says its a huge battery drainer. I say how could that be if it only runs when the icon is up. But this might just explain that as well.
Also other logging programs might keep it awak but this one ur suggesting doesn't i take it. Good to keep in mind. Will update later today
Sent from my DROIDX using XDA App
Sorry, I guess I'm lost/confused.
No one really has a concern that this is a potential system problem that's causing excess battery drain?
I do we still don't have an extended battery im very curious to what we can do with the battery life. If this is true id imgine tasker is the way we would go around fixing it. But went we getting 2.2 next week? Maybe that will fix it. Like i said when i get home im going to try what u said when i get home
Sent from my DROIDX using XDA App
Just noticed something, I formated my phone just today. (for some reason i had to activate again. is that normal never had to do that with my WM phone when i would put roms on it and stuff)
During setup it asked if i wanted to share anymous location info to google, which i know the fist time i said yes (actually maybe the guy at verizon said yes for me) in any case it says under it something "will anonymously collect your location data even if a location app isn't running"
which could explain why it stays on when the gps is on
if you can go into your system settings and it's on for you try turning it off and see if then leaving the gps switched on will still keep the phone on.
mavermc said:
Just noticed something, I formated my phone just today. (for some reason i had to activate again. is that normal never had to do that with my WM phone when i would put roms on it and stuff)
During setup it asked if i wanted to share anymous location info to google, which i know the fist time i said yes (actually maybe the guy at verizon said yes for me) in any case it says under it something "will anonymously collect your location data even if a location app isn't running"
.
Click to expand...
Click to collapse
I think that's the option in settings->privacy, which I turned off the other day, so I don't think that's it.
Good find. Seeing the same thing. Repeated your test, and yep, system stays on till gps is bounced.
Certainly doesn't look right. Is it that once satellite fix is established, it's maintained (even if not used)? And on GPS on/off, the fix is lost and the system forgets about GPS till it's actually called?
Next step would be to see how it affects power consumption. Will try to run some more tests later in the day.
Is there an easy way to test power drain? it'll be very interesting to see what effect this is really having.
lexluthor said:
Is there an easy way to test power drain? it'll be very interesting to see what effect this is really having.
Click to expand...
Click to collapse
Unfortunately with the Droid X only showing battery power in 10%, it's not easy to discern small differences without waiting for hours.
I wonder if looking at the voltage would offer more precision. But, not sure how reliable that is. After all, if it was, why wouldn't the 3rd party battery meters use that to show more precise % readings.
exempli_gratia said:
Unfortunately with the Droid X only showing battery power in 10%, it's not easy to discern small differences without waiting for hours.
I wonder if looking at the voltage would offer more precision. But, not sure how reliable that is. After all, if it was, why wouldn't the 3rd party battery meters use that to show more precise % readings.
Click to expand...
Click to collapse
You'd actually have to write an event for every single percent in the Android system for anything to detect the battery much more accurately and Motorola is too lazy to do that. Its only gonna show every 10% because thats what Android was programmed to show.
just an update, i said no to google doing it's data mining off my gps. but then i found in location, when i check "use wifi" it asked me again. My guess is thats how they know where you are when you turn on wifi, because if you want that feature you also have to be used in mining data of where the wifipoints are physically located.
So maybe that has something to do with it.
Saw this on Android Central Yesterday.
I can confirm it, when used with fancy widget. When standard weather app is used, no major power drain. Fancy widget seems to pin the GPS and run it hard the entire time.
hijackerjack said:
You'd actually have to write an event for every single percent in the Android system for anything to detect the battery much more accurately and Motorola is too lazy to do that. Its only gonna show every 10% because thats what Android was programmed to show.
Click to expand...
Click to collapse
I would think that if Android had 1% events some app would take advantage of it (there are certainly plenty of battery monitors in Market). But I don't know of any that show anything other than 10%. The HTC phones do 1%, and the battery widgets on HTC phones show likewise. Must be a Motorola implementation limitation.
I'm within my 30days
I love this phone.
My battery discharges rapidly, especially their the first 5 mins off the charger.
I have been looking at this issue, but I am new to android.
I find it funny we can't actually see a battery percentage without installing third party apps. Then Sprint tries to say that these apps are the cause of the issue.
Trust me, I understand that this phone will drain the battery more rapidly than a lot of other phones. But there is something wrong with the way this phone charges the battery, therefore we see less battery life.
Can anyone prove or disprove their little claim that I am killing the battery by looking at its performance?
Sent from my PC36100 using XDA App
tell him that the phone and the plan is also draining your wallet, may be you should do something about that too
the reason your battery sometimes drops so quickly after you take it off the charger has been well documented. several threads with ways to improve the battery as well.
it has to do with the way the battery actually charges. it charges to 100% then allows the phone to discharge to 90% then charges up again...so at any time when you unplug the phone you may have 91% to 100% charge. or something like that.
1) have you tried conditioning your battery? (plug, wait, unplug, rinse repeat)
2) are you rooted? (try using something like SetCPU or JuiceDefender)
3) are you on stock or custom rom? (the custom kernel devs have been working on this issue)
hmmmm...how could you possibly disprove the sprint person? try not using it for a couple days...see what happens.
DraginMagik said:
try not using it for a couple days...see what happens.
Click to expand...
Click to collapse
No doubt....my withdrawals kick in after its been in my pocket for too long...
While do appreciate the input, I disagree with it being well documented. I have tried both top off methods, aka conditioning, and it seems to give you more of a charge, but as soon as discharge the battery you are right back where you started, conditioning the battery every morning is not ideal.
Sent from my PC36100 using XDA App
If the phone is new, its going to take a few cycles to improve. I remember when in my first week it wouldn't last a day. Now I can get 20-30 hours out of it. (ROMs and tweaking of course.)
There are tons of threads detailing what you can do to improve battery life... What have you done?
The purpose of a battery graph is to compare how your phone discharges to how your phone is being used. What plotting app do you have?
engagedtosmile said:
If the phone is new, its going to take a few cycles to improve. I remember when in my first week it wouldn't last a day. Now I can get 20-30 hours out of it. (ROMs and tweaking of course.)
Click to expand...
Click to collapse
This is false...lithium batteries do not get broken in or conditioned. What you saw is more than likely a result of constant using your new toy. The novelty has worn off and you have tweaked it so now you have extended the battery life.
I have disabled Bluetooth, WiFi, gps, and 4g
I set the radio to cdma only, and this led to problems. So I cleared all data And started over.
Are youguys seriously ok with 'conditioning' your batteries every morning?
Sometimes I think people think I'm just trying to find faults with this device. I want to keep the phone, but I also want this problem clearly identified and resolved. I should not have to use my tilt 2 to charge my battery because my new state of the art phone can't do it correctly.
Sent from my PC36100 using XDA App
lettcco said:
tell him that the phone and the plan is also draining your wallet, may be you should do something about that too
Click to expand...
Click to collapse
it's called the Fat Wallet Mod Discussed in other threads also,
But yes, I think it's dumb to have to condition the phone to get the best battery life, and how I have to get soo much good Light to take a good camera shot when other comparable phones don't need too. You have to weigh the goods and bad yourself.
The discharging of the battery is necessary as trickle charging a lithium battery is not recommended...thus this leads to you possibly having 95% instead of the full 100%. This is normal. Just unplug the device and charge again, or top it of in the car.
You never mentioned if you were rooted or not. If you don't use the news then don't sync it. If you don't use gtalk then disable it and turn off the auto sign in...i found that this app uses a lot of battery and its turned on by default.
It is not conditioning your battery.
When you charge your new evo and it hits 100%, the phone STOPS charging. It has no trickle charge. It begins charging again at 90% if still plugged in, although it reads 100% until it comes off the charger.
SO, when you unplug it, it says 100%, but could be anywhere between 90 and 100. If you simply unplug your phone, wait for it to display something other than fully charged (usually takes 30-60 seconds), then plug it back in, it will then charge back to 100%. You can simply unplug it, wait a few and then plug it back in while you go about your shower and cereal. When you are ready to leave the house you'll probably be at or near 100% instead of seeing it drop to something much lower.
This is NOT conditioning your battery. A more appropriate term would be "bump charging". As you are simply bumping it back to a charge state when it was in a resting state.
Another GREAT method of increasing battery life is resetting your battery stats. This is clearing out what the phone defines as full, and as empty and setting up these values again. I am not sure why, but they are off on many phones. They also get wiped anytime you flash a new rom so this procedure would again be in order if you experience poor battery life.
These are the instructions straight off cyanogen wiki. You can also reset them using Amon recovery.
Battery recalibration
If you're experiencing higher than normal battery drain, try the following:
1.Charge the phone to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings -> About Phone -> Status -> Battery Level = Full.)
2.Boot to recovery mode and go to console (or adb shell) and type:
mount -a
rm /data/system/batterystats.bin
NOTE: Newer Amon_Ra and ClockworkMod recoveries have an option to delete the battery stats, do this in place of the console commands above.
NOTE: To have the most accurate of battery stats, reboot the phone immediately after wiping the battery stats and wait for CM to boot completely to the desktop. Once your entire boot is done and you have full access to the phone, go ahead and pull the charger and continue with this troubleshooter.
1.Do not charge the phone until after draining the battery completely, resulting in it automatically shutting off.
2.Recharge the phone completely and then use as you normally would.
Excellent write up carguy... +15 internets to you
surrealmethod said:
Excellent write up carguy... +15 internets to you
Click to expand...
Click to collapse
why thank you kind sir!
potna said:
I'm within my 30days
I love this phone.
My battery discharges rapidly, especially their the first 5 mins off the charger.
I have been looking at this issue, but I am new to android.
I find it funny we can't actually see a battery percentage without installing third party apps. Then Sprint tries to say that these apps are the cause of the issue.
Trust me, I understand that this phone will drain the battery more rapidly than a lot of other phones. But there is something wrong with the way this phone charges the battery, therefore we see less battery life.
Can anyone prove or disprove their little claim that I am killing the battery by looking at its performance?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
sprint rep is an idiot and if you took the time to search instead of making this post you could have saved yourself some trouble
no...i can't imagine anyone 'conditions' their battery daily. however, if experiencing issues wiping the stats and doing the conditioning thing do have an impact.
Sporkman said:
sprint rep is an idiot and if you took the time to search instead of making this post you could have saved yourself some trouble
Click to expand...
Click to collapse
While most of the battery problem isn't the plotter app, the plotter app is using a fair amount of battery, so I usually would recommend not having such apps running except when you are diagnosing problems. Turn off various apps sync settings and keep background apps to a minimum, like juice plotter, battery widgets, and other data intensive apps and widgets. That right there will save you some power. Other than that, follow all the excellent suggestions that are already in this thread. Oh, and I find I get better battery when I just don't worry about it. I set up all my sync services and then leave them alone. Then just go about my day, using my phone as needed. Constantly worrying about it only wastes power because you are constantly fiddling with settings and apps.
PROTIP: Never believe anything a cellular rep tells you. Ever. EVER!
The Evo just has terrible battery life, that's my personal conclusion. One of the trade offs with such a huge screen and such. You'd think that in this day and age battery technology would have kept up with all the other bells and whistles, but no.
carguy4471 said:
It is not conditioning your battery.
When you charge your new evo and it hits 100%, the phone STOPS charging. It has no trickle charge. It begins charging again at 90% if still plugged in, although it reads 100% until it comes off the charger.
SO, when you unplug it, it says 100%, but could be anywhere between 90 and 100. If you simply unplug your phone, wait for it to display something other than fully charged (usually takes 30-60 seconds), then plug it back in, it will then charge back to 100%. You can simply unplug it, wait a few and then plug it back in while you go about your shower and cereal. When you are ready to leave the house you'll probably be at or near 100% instead of seeing it drop to something much lower.
This is NOT conditioning your battery. A more appropriate term would be "bump charging". As you are simply bumping it back to a charge state when it was in a resting state.
Another GREAT method of increasing battery life is resetting your battery stats. This is clearing out what the phone defines as full, and as empty and setting up these values again. I am not sure why, but they are off on many phones. They also get wiped anytime you flash a new rom so this procedure would again be in order if you experience poor battery life.
These are the instructions straight off cyanogen wiki. You can also reset them using Amon recovery.
Battery recalibration
If you're experiencing higher than normal battery drain, try the following:
1.Charge the phone to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings -> About Phone -> Status -> Battery Level = Full.)
2.Boot to recovery mode and go to console (or adb shell) and type:
mount -a
rm /data/system/batterystats.bin
NOTE: Newer Amon_Ra and ClockworkMod recoveries have an option to delete the battery stats, do this in place of the console commands above.
NOTE: To have the most accurate of battery stats, reboot the phone immediately after wiping the battery stats and wait for CM to boot completely to the desktop. Once your entire boot is done and you have full access to the phone, go ahead and pull the charger and continue with this troubleshooter.
1.Do not charge the phone until after draining the battery completely, resulting in it automatically shutting off.
2.Recharge the phone completely and then use as you normally would.
Click to expand...
Click to collapse
I'm sorry but that all sounds like the formula to derive the circumference of the nucleus of an atomic variable perpendicular to the perimeter of the nth root in relation to the isosceles of the .........geezus, all that just to get a smidgen of decent battery life...
Hello!
Today my battery on my Epic 4G with Froyo drained after 12 hours. And actually, I didn't do anything. I'm still new in the Android. Can you share your best practice what you are doing to prolong time between charging? What apps you are using, what you are turning off, etc.?
Thank you!
First step is to install Spare parts and figure out what is in fact draining your battery. You need to check if its running instead of sleeping when the display is off. Also check in settings under About Phone > Battery Use to see what is using the most battery.
The biggest thing I did to help my battery was killing the drm process. Also when your phone reboots put it in airplane mode for a couple seconds so your time without signal won't be 50% and killing your battery. And if you use wifi change the sleep to never. Other things I leave gps and Bluetooth off till I need them and I keep the brightness setting all the way down and I don't use live wallpaper.
muyoso said:
First step is to install Spare parts and figure out what is in fact draining your battery. You need to check if its running instead of sleeping when the display is off. Also check in settings under About Phone > Battery Use to see what is using the most battery.
Click to expand...
Click to collapse
I've checked the Spare Parts. 98% of running time is process called kswapd0. I don't know what is it.
What do I need to do to prevent it?
antila said:
I've checked the Spare Parts. 98% of running time is process called kswapd0. I don't know what is it.
What do I need to do to prevent it?
Click to expand...
Click to collapse
Thats a new one to me. Seems like other galaxy S phones have the same issue. No idea what causes it.
Ok I was trying to search abouth this but haven't found abouth it here.
When my battery is under 10%, you can't select display brightness anymore in the display option menu. I don't use energiesaving. Is this normal that samsung manages the brigntness itself than? It's annoying because I want to use my 10% battery on full brightness if I want too!!
I can adjust it with the widget, however when I open my browser it sets back to samsung dimming it... so not possible than.
Also you can not use camera at lower battery of 20 or 15%, not sure wich one, just noticed it today; I think 15%. Why the f*ck is that? Again: Why can't I choose what to do with my last 15%?
As far as I was searching I didn't find an option to turn this off. Anybody else maybe?
Thanks for answering these two questions!!
Oh and a little question: The battery usage graph, when is it reset and does it start counting again? Only when you put the plug in untill it is 100%?
this has been the default behavior even with SGS1. You can't snap pictures, listen to music, view videos, raise brightness when your battery is low.
I think there is no way to alter this behavior.
To your other question - the batt stats in that little app will reset when you charge to full 100% and it gives you that message "batt is charged, disconnect the charger".
kreoXDA said:
this has been the default behavior even with SGS1. You can't snap pictures, listen to music, view videos, raise brightness when your battery is low.
I think there is no way to alter this behavior.
To your other question - the batt stats in that little app will reset when you charge to full 100% and it gives you that message "batt is charged, disconnect the charger".
Click to expand...
Click to collapse
Ok thank you!
I find this pretty annoying. Verry friendly of samsung to think abouth my battery not spending on media things, and i could make important calls if I need to! But I am old enough to spend my battery on what I find important, pff.
Oh well, maybe rooting in the future(or wouldn't that effect it?)... Don't know much aboutch that yet, first android. But will look into it.
Most likely you would need to patch the code to fix this. Someone will do it eventually. It hasn't bothered me enough for me to want to patch it. But I agree, it's stupid. If I want to take pictures when the battery is at 15% or lower, I should be able to do that. If I want to watch a movie when the battery is less than 10%, I should be able to do that.
Interesting. What if Samsung didn't implement this features and when your last 10-15% of your battery is dying fast with all your setting and you couldn't make any important calls or email or message will you be complaining to Samsung for not implementing any battery saving features?
With 10-15% of my battery left I will save as much battery as I can to save for any important things before I reach home.
People's need is hard to pleased. One wanted this another one doesn't want that. Never ending story. Haha.
Wait for custom rom to remove this features. =D
r_a_c said:
Ok I was trying to search abouth this but haven't found abouth it here.
When my battery is under 10%, you can't select display brightness anymore in the display option menu. I don't use energiesaving. Is this normal that samsung manages the brigntness itself than? It's annoying because I want to use my 10% battery on full brightness if I want too!!
I can adjust it with the widget, however when I open my browser it sets back to samsung dimming it... so not possible than.
Also you can not use camera at lower battery of 20 or 15%, not sure wich one, just noticed it today; I think 15%. Why the f*ck is that? Again: Why can't I choose what to do with my last 15%?
As far as I was searching I didn't find an option to turn this off. Anybody else maybe?
Thanks for answering these two questions!!
Oh and a little question: The battery usage graph, when is it reset and does it start counting again? Only when you put the plug in untill it is 100%?
Click to expand...
Click to collapse
Thinks its a security feature too protect your battery and your fone.
Lithium batteries are very sensitive when they are almost drained. Normaly your fone will shutdown when the batteri voltage reach about 2,5V, if the voltage go lower on a lithium batteri, it will not accept a new charge and can explode if force charged.
Another thing is that lithium batteries have higher impedance the lower the voltage is on the batteri and its not after af liniear scale. Lets say the voltage on the battery is about 3V when the fone is reporting 10% left. The problem is that the impedance is very high at that voltage, so if you drain to much power, the voltage on the battery will drop under the safe voltage limit immediately, render your battery useless, and possibility to harm your fone and you if force charged.
jonrwg said:
Interesting. What if Samsung didn't implement this features and when your last 10-15% of your battery is dying fast with all your setting and you couldn't make any important calls or email or message will you be complaining to Samsung for not implementing any battery saving features?
With 10-15% of my battery left I will save as much battery as I can to save for any important things before I reach home.
People's need is hard to pleased. One wanted this another one doesn't want that. Never ending story. Haha.
Wait for custom rom to remove this features. =D
Click to expand...
Click to collapse
no nobody would be complaining because not a single other android phone does this behavior, and people seem just fine not yelling about anything.
i agree this behavior should have an on/off setting. someone will fix it wiht custom ROM let's hope.
Yeah and not to be able to use camera when battery is lower than 20% is ridicilous! There is still 20% juice left. Camoon Samsung!!
I could somehow understand if it starts when under 10% left but I still prefer that I can personally decide whether or not save battery when running out.
For Desire I always had extra battery with me. I could use it 100% until the battery died and just change to next one.
Now basically the already bad battery life has been taken 20% away cause you cant do **** after that.
RogerPodacter said:
no nobody would be complaining because not a single other android phone does this behavior, and people seem just fine not yelling about anything.
i agree this behavior should have an on/off setting. someone will fix it wiht custom ROM let's hope.
Click to expand...
Click to collapse
Haha, true true. Hope this can be fixed in custom rom.
Oh, my mate just complaint to me about this a moment ago.
Some people get battery life less than others and the simplest most common answer is the battery calibration. There are so many other reasons to take into account from having defective unit to what are you using your phone for. people spending more time on light apps such as simple chat app will get alot more screen on time compared to other who spend more time playing heavy 3D HD games. Additionally, wifi, 3G/4G, GPS, auto sync, bluetooth, NFC and brightness of the screen will have an impact on the battery life thus screen on times, so you should take into account all of these things. Comparing screen on times is useless as you don't know what the other person was doing during the screen on times and what other things were on.
Therefore, I decided to make this topic. I saw people complaining that their screen on of there phones is alot less than others, although they have all other services off and brightness to the minimum. before going into calibrating your battery, you should check whether your phone is going into deepsleep as expected or not. If not then this is what is draining your battery, you can use wakelock apps to check if any thing you installed preventing your phone from going into deepsleep.
Apart from previous reasons, calibrating your battery could be the solution. First, you should note that you need to do this once every ~2 months (avoid doing it alot). There are so many ways to calibrate your battery, and I will mention two here:
if you are rooted:
1- run down you device's battery until it turns itself off
2- charge it until it is 100%
3- use any app from the play store to delete batterystats.bin
4- you can stop here but the following steps will speed up the calibration process
5- repeat step 1
6- charge it fully without pause
7- use your phone normally and the battery will improve in the next few days (steps 5&6 should speed it up)
if you are not rooted:
1- run down you device's battery until it turns itself off
2- charge it fully without pause
3- turn it on
4- wait few minutes
5- charge it for one hour
6- use your phone normally and the battery will improve in the next few days (repeating 1&2 should speed up the process)
if anyone has any suggestion or comments or if I made any mistake please let me know.
please hit thanks if I helped in anyway
What to do after calibrating your battery?
now you calibrated your battery, you need to understand few things to squeeze the most out of your battery. the basic answer is to monitor your battery and avoid things that drain your battery. so what uses more battery, I will but list of things that use the most battery in order (what use the most to the least). The list came from me monitoring every single one alone (it might not be accurate)
1- Processor
2- screen
now people would say that screen uses more than processor. In order to test this, charge your phone to 100% unplug it and directly play heavy HD game for 30-60 min and go and check battery stats, you will see the game no.1 then screen no.2. the problem with the processor is that when it heats up, it wastes ALOT of battery as the heat is just energy came from the battery. if you want to extend you battery life, you should start with these two as they use more battery than everything else. To make it simpler I would say 1 hour of screen on uses battery enough to keep your wifi on for >1day (and I mean wifi not the whole phone with wifi on)
Recommendations:
a- avoid using apps/games that heat your phone (most games does, but try to avoid when possible)
b- Avoid using your phone while hot (this will degrade the battery and the screen and will hurt other internals such as processor in the long run and will also waste too much battery)
c- underclock your processor if you play to much heavy games (to protect your phone from heat and extend battery life)
d- reduce the brightness will save you good few hours of use
3- auto sync
4- 3G/4G
5- wifi
I put auto sync first because in order to have working auto sync, you will need wifi or data + processor to process what are you syncing
6- GPS
GPS actually consume more battery than wifi when both are working, but the good thing about GPS is that if it is not in use even if it is on, it doesn't use battery unless it was needed to locate the phone.
Recommendation
Turn them off when not needed. There are certain apps in the play store that turn off wifi, data and auto sync when screen off then turn them back on when screen is turned on. I use tasker which does this and check for downloads before turning off wifi or data.
you are more than welcomed to add any tips or make comments or suggestions
Are you sure you are talking about Xperia Z1 and not lets say Nokia 3310? You should not overcharge modern batteries, as they dont have the memory effect. In realoty discharging it to 0% and charging to full will actualy make battery worse and cause decrease of battery life. You should also avoid charging overnight if you want to keep your battery in good condition. The best thing to do is to keep it between 15% to 85-90%, and dont let it discharge/overcharge.
Sent from my Nexus 7 using xda app-developers app
The best thread in french to improve your battery : http://htc-touch-diamond.forumactif.info/t22878-le-bon-usage-des-batteries-li-ion
Envoyé depuis mon C6903 avec Tapatalk
gallardo5 said:
Are you sure you are talking about Xperia Z1 and not lets say Nokia 3310? You should not overcharge modern batteries, as they dont have the memory effect. In realoty discharging it to 0% and charging to full will actualy make battery worse and cause decrease of battery life. You should also avoid charging overnight if you want to keep your battery in good condition. The best thing to do is to keep it between 15% to 85-90%, and dont let it discharge/overcharge.
Sent from my Nexus 7 using xda app-developers app
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I do understand what are you talking about and I do know about battery memory. But you still need to completely discharge your phone once every ~2 months for calibration purpose. But you are right about overcharging it. I will modify the main topic to make these changes, Thx
ahomad said:
I do understand what are you talking about and I do know about battery memory. But you still need to completely discharge your phone once every ~2 months for calibration purpose. But you are right about overcharging it. I will modify the main topic to make these changes, Thx
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No you don't, that's completely unnecessary with modern batteries.
Also, wiping batterystats.bin just clears the info in the battery usage page in settings, it gets wiped automatically every time you charge over 90% and has nothing to do with calibrating the battery.
So much misinformation in this thread.
Michealtbh said:
No you don't, that's completely unnecessary with modern batteries.
Also, wiping batterystats.bin just clears the info in the battery usage page in settings, it gets wiped automatically every time you charge over 90% and has nothing to do with calibrating the battery.
So much misinformation in this thread.
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you could have said it in a better way. any source about what are you saying?. There are tons of sites that agree with what I said, a quick search found this
http://gizmodo.com/how-to-take-care-of-your-smartphone-battery-the-right-w-513217256/1416982678
at the end they said this
"To get the most out of a lithium-ion battery, you should try to keep it north of 50 percent as much as possible. For the most part going from all the way full to all the way empty won't help; in fact, it'll do a little damage if you do it too often. That said, it's smart to do one full discharge about once a month for "calibration," but don't do it all the time. Running the whole gamut on a regular basis won't make your battery explode or anything, but it will shorten its lifespan."
and regarding wiping batterystats.bin. There are tons of articles and apps the recommend this and so many people said that it helped them. it is not just useless because you said so, unless you have strong evidence which I want to see.
This is old advice. With the new technology batteries it is not advisable to completely empty the battery.
There is no need to "condition" the batteries and they do not suffer from "charge memory"
Plus, there is already a thread in this forum about battery handling and tips
gregbradley said:
This is old advice. With the new technology batteries it is not advisable to completely empty the battery.
There is no need to "condition" the batteries and they do not suffer from "charge memory"
Plus, there is already a thread in this forum about battery handling and tips
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Thanks for letting me know. If this is the case, please someone close the thread
Thread Closed, please make sure a thread on the same subject is not available already in your forum before posting a new thread.
--wedgess