http://m.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer
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bloodrain954 said:
http://m.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
Haven't read it yet.
But its 'myth'.
posting part of the article here would help you know
Dude, not to be a **** and rain on your free will for posting info, but this is old news. Battery stats are known to be used to measure how much juice your battery can hold, in otherwords the stats are their to learn your battery. Wiping battery stats should be used only when your on an alpha Rom with broken battery reporting moving to a more stable version. Or when your battery needs calibrating.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
r0cky0790 said:
Dude, not to be a **** and rain on your free will for posting info, but this is old news. Battery stats are known to be used to measure how much juice your battery can hold, in otherwords the stats are their to learn your battery. Wiping battery stats should be used only when your on an alpha Rom with broken battery reporting moving to a more stable version. Or when your battery needs calibrating.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
Click to expand...
Click to collapse
this is the point....
your battery does not need calibrating. that is the myth.
tailsthecat3 said:
Havent read it yet.
But its 'myth'.
Click to expand...
Click to collapse
Thanks for the help, also it's "haven't."
Sent from my PG86100 using Tapatalk
Alright, alright.
bloodrain954 said:
Thanks for the help, also it's "haven't."
Sent from my PG86100 using Tapatalk
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Click to collapse
Grammar police.. *siren noise*
lol... nice thread. it still has potential
Well when phones start shutting off at 14%, we will see who stays committed to this thread. Like i said no disrespect but nice talking to you guys.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
i saw this and posted about it but didnt get any responses. was wondering if any devs or people in the know could explain it a little more.
r0cky0790 said:
Well when phones start shutting off at 14%, we will see who stays committed to this thread. Like i said no disrespect but nice talking to you guys.
"DU4L C0R3 SH00T3R"┌П┐[◣_◢]┌П┐
http://goo.gl/v6NqW iTz_r0cky!
Click to expand...
Click to collapse
explain this to me then... how, logically this idea about wiping battery stats makes sense. think about this.
you flash a new rom, wiping system completely, fresh start right? ok. so a small crash course in Linux... the Linux kernel is the power management system for android. this means voltage, charge capacity, and discharge cycles. the Linux kernel determines at what voltage to power down your phone, and at what voltage is full charge. is it not? it is. right.
ok so the next question I ask... is why is this a dispute? you just read a quote from an engineer that told you exactly what the function of the battery stats file is... and it is simply system analysis. it logs readings on what is consuming battery, for how long... charge and discharge cycles. it does NOT control or maintain the phone's power management. this is a Linux kernel function. just like your CPU voltages are maintained and operated by your Linux kernel, so is everything else (your entire phone for that matter) in the android world.
I used to wipe battery stats alllll the time. did the whole charge to full capacity, delete battery stats, yadda yadda yadda... does nothing.
let me ask you this as well, and this logic should by itself debunk anything you have ever been told about the batterystats.bin file... HOW does it make any sense, that your phone would know when it is fully charged after flashing a rom if your system was dependent upon the batterystats info to know when it is fully charged? because remember that information is lost when reflashing a rom, because it is stored in the /data/system/ directory. so after flashing a rom shouldnt your phone have ABSOLUTELY no idea what to display????? but instead you boot it up, and what do you see? the difference is nothing, you see a small difference in percentage that was spent while flashing your rom. and why is that? because the new kernel you flashed is now taking the voltage readings... not the batterystats file.
batterystats.bin "calibration" is indeed a myth. and you are not calibrating it, or anything, by deleting it. you are simply deleting a system log of what has been using your battery.
Lol I only wiped my stats when I had a new battery when I swapped em out or a bigger battery.
reaper24 said:
Lol I only wiped my stats when I had a new battery when I swapped em out or a bigger battery.
Click to expand...
Click to collapse
still isn't needed. lol. your charge capacity could be a bajillion mAh and as long as your voltage ranges for the battery are within the spec of the OS.. it will run perfectly.
have to understand that mAh and voltage are two completely different things. a simple way to put it is mAh is simply a measurement of theoretical sustained power output, and voltage is the actual power output.
voltage ranges are the same for a 4000 mAh battery for this phone, or a stock one. the difference (the mAh) is the amount of power it has stored for use.
think of it like.... gasoline... the gas tank is the mAh, and the MPG is the voltage. one has an effect on the other, but only in regards to sustained travel time.
cobraboy85 said:
still isn't needed. lol. your charge capacity could be a bajillion mAh and as long as your voltage ranges for the battery are within the spec of the OS.. it will run perfectly.
have to understand that mAh and voltage are two completely different things. a simple way to put it is mAh is simply a measurement of theoretical sustained power output, and voltage is the actual power output.
voltage ranges are the same for a 4000 mAh battery for this phone, or a stock one. the difference (the mAh) is the amount of power it has stored for use.
think of it like.... gasoline... the gas tank is the mAh, and the MPG is the voltage. one has an effect on the other, but only in regards to sustained travel time.
Click to expand...
Click to collapse
Lol im a mechanic I know all about gas and volts
How big of a gas tank does your phone have? I've put a half gallon in my phone but it still won't start/power up...
I was happy to learn that wiping battery stats isn't neccessary because it's now one less thing I need to go through when changing things up.
I will say I was wiping stats when changing roms because I simply didn't know any better.
I'm no guru with programing or engineering so I was part of the masses doing this. Lol enjoyed the placebo effect of thinking I was doing something essential to improve battery though.
Sent from my PG86100 using xda premium
aerajan said:
I was happy to learn that wiping battery stats isn't neccessary because it's now one less thing I need to go through when changing things up.
I will say I was wiping stats when changing roms because I simply didn't know any better.
I'm no guru with programing or engineering so I was part of the masses doing this. Lol enjoyed the placebo effect of thinking I was doing something essential to improve battery though.
Sent from my PG86100 using xda premium
Click to expand...
Click to collapse
Its technically not a placebo effect that battery life improved while "calibrating your battery"...but its not related to the wiping of stats.
During the calibration process, it takes time to cycle (fully charge and discharge) your battery...while this itself didn't affect battery life...it allotted time for the ROM and kernel combo to "settle in", and run more efficiently, which in turn, made people think that the positive effects of the "calibrating process" were due to the wiping an arbitrary stats file
Vinchenzop said:
Its technically not a placebo effect that battery life improved while "calibrating your battery"...but its not related to the wiping of stats.
During the calibration process, it takes time to cycle (fully charge and discharge) your battery...while this itself didn't affect battery life...it allotted time for the ROM and kernel combo to "settle in", which in turn, made people think that the positive effects of the "calibrating process" were due to the wiping an arbitrary stats file
Click to expand...
Click to collapse
Cool, thanks for the simple explanation. So is it still a good idea to calibrate the battery by fully charging then discharging it when switching roms?
aerajan said:
Cool, thanks for the simple explanation. So is it still a good idea to calibrate the battery by fully charging then discharging it when switching roms?
Click to expand...
Click to collapse
No, not necessarily....just wait a day or two after installing a new ROM and/or kernel before judging how it will run on your specific phone...
Basically, after flashing a ROM or kernel, just use your phone. If the battery is low, charge it, if its not low, don't charge it...don't stress about battery life for a day or two until everything sets in
So many people wait only an hour after flashing and scream "horrible battery life on this ROM/kernel!"....people need to learn patience
Related
I just did the conditioning thing for my battery.
Charged fully, then wiped battery stats, now i have to drain it.
How can i drain it FAST?
i have gps on, bluetooth on wifi on
watching a HQ youtube video while listening to music
why is it that when i dont want my battery to drain it drains fast as hell, but when i want it to drain it feels like an hour from 100 to 99?
how can i make this even faster??
Do a lot of rebooting always kills mine
willsnews said:
Do a lot of rebooting always kills mine
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Click to collapse
holy ****, its working every reboot gets like 1% haha
97 more reboots to go
Turn gps on, go outside and actually use it with maps or navigation. Will kill your phone in 1 to 2 hours.
Sdobron said:
Turn gps on, go outside and actually use it with maps or navigation. Will kill your phone in 1 to 2 hours.
Click to expand...
Click to collapse
rather not its like 30 degrees outside here in Texas ha
so far, 31 minutes used and went from 100 to 76 an hour or two more, and BAM it'll be good.
I put a live wallpaper on and now its running like hell hahah
Even if you're indoors maps and searching for signal might help knock it down more.
STOP
Deep cycling is really bad for Lithium-ion batteries. I don't know why people keep perpetuating this myth that you should do this after burning a ROM. I blame Team Whiskey et all, etc . . . blah blah (You flashed our ROM now recalibrate your battery)
Lithium-ion batteries do not have a memory, you do not need to deep cycle them like Ni-Cad, doing so seriously shortens the lifespan of the battery. So unless you notice that the readout for the % of battery charge seems very off from reality don't recalibrate. Even if it is off a little, it will fix itself over time as you charge and use your phone. You don't even need to let it drain a lot. Just use it like normal and charge it when ever you get a chance.
T313C0mun1s7 said:
STOP
Deep cycling is really bad for Lithium-ion batteries. I don't know why people keep perpetuating this myth that you should do this after burning a ROM. I blame Team Whiskey et all, etc . . . blah blah (You flashed our ROM now recalibrate your battery)
Lithium-ion batteries do not have a memory, you do not need to deep cycle them like Ni-Cad, doing so seriously shortens the lifespan of the battery. So unless you notice that the readout for the % of battery charge seems very off from reality don't recalibrate. Even if it is off a little, it will fix itself over time as you charge and use your phone. You don't even need to let it drain a lot. Just use it like normal and charge it when ever you get a chance.
Click to expand...
Click to collapse
A lot of people r telling me it helped them
Sent from my SGH-T959 using XDA App
xriderx66 said:
A lot of people r telling me it helped them
Sent from my SGH-T959 using XDA App
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Click to collapse
Um, just Google search Lithium-ion. Read a little about the battery technology for yourself and you will see why it is very BAD advise to deep cycle your battery. After a little more than a year with Li-Ion the battery will only hold about 70% of the charge it held when it was new. Keep deep cycling and you will shorten that time to about 4-5 months. Then these same people come back here and ***** about how crappy their battery was because it only lasted a few months and they will offer as proof that it was always crappy because they had to recalibrate it a frequently. I alway think the same thing to myself when I here this from people, "dumb ass, you killed it."
Hell, the sales rep at T-mobile tried to tell me this crap when I purchased my phone. I asked her where she got her electrical engineering degree with focus on battery technology from. After the puzzled look settled from her face I told her that the advice she gave was about the worst thing you could do to the battery. She didn't believe me, but I told her to look it up on her fancy Google powered smart phone. After she did that she apologized.
xriderx66 said:
A lot of people r telling me it helped them
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
A lot of people say things they don't understand, don't drain your battery as such, it's not good.
I wont do it... but
I've already pressed wipe battery stats does rat mean it already happened or something? Is there anything I can do to reverse this iif I did it wrone
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xriderx66 said:
I wont do it... but
I've already pressed wipe battery stats does rat mean it already happened or something? Is there anything I can do to reverse this iif I did it wrone
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Wipe battery stats, does not affect the battery, only deletes the stats saved by the OS. It won't make your battery run faster, or better. These are only STATS saved by the system to tell you where your power is going.
Don't go all psycho about the battery issue. get a cheap chinese knokoff battery from ebay with charger (as I did) and just go out with 2 batteries, even with heavy use, 2 batteries should last you all day. (well, with certain roms, Almost all day)
gagb1967 said:
Wipe battery stats, does not affect the battery, only deletes the stats saved by the OS. It won't make your battery run faster, or better. These are only STATS saved by the system to tell you where your power is going.
Don't go all psycho about the battery issue. get a cheap chinese knokoff battery from ebay with charger (as I did) and just go out with 2 batteries, even with heavy use, 2 batteries should last you all day. (well, with certain roms, Almost all day)
Click to expand...
Click to collapse
I am running Axura 2.1 with no changes to the modem or theme and a stock battery. My phone is only about 2 months old but running stock I got about 11-13 hours and now I get 24+ hours when I let it. Normally I just charge it every night anyhow because it does not hurt anything, in fact it is better for the battery.
Nothing uses more power than the touch screen. Keep scrolling pages and your phone will be a hand warmer.
I've noticed deep cycling lithium ion batteries can destroy capacity to almost nothing quickly. Keep a charge on it whenever you can. The internal resistance is so low, you won't ever notice a "memory." Until the chemistry inside has rotted itself out.
dattaway said:
Nothing uses more power than the touch screen. Keep scrolling pages and your phone will be a hand warmer.
I've noticed deep cycling lithium ion batteries can destroy capacity to almost nothing quickly. Keep a charge on it whenever you can. The internal resistance is so low, you won't ever notice a "memory." Until the chemistry inside has rotted itself out.
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Click to collapse
Excellent job of putting into layman's terms the endless cycle of the relationship of heat creating the substance on the electrode that increases resistance, which creates more heat in an endless cycle that is the death of batteries.
In lead acid batteries (like your car, motorcycle, or uninterruptible power supply) oxidation on the plates create this internal resistance and it is why car batteries are rated by number of months, like a 72 month battery. It happens to some extent to all rechargeable battery technologies, but in the case of Li-Ion batteries the internal chemistry actually tear them selfs up over time.
Long story short is the two really big enemies of Li-Ion batteries is deep cycling and heat. In fact if they are not vented well, and allow heat to build up, you get the battery fires you may have heard about with the Dell and Apple laptops that used the Sony batteries. There have also been a few phones that have been known for melting down.
Y'know, I would love to see a big sticky in one of these forums about this. Another voice of reason -- Don't deep cycle your battery, don't cycle it unnecessarily and don't worry about calibration. Your phone calibrates itself all the time and the less often your battery spends any time at low charge the longer it'll last.
Thanks guys good thing I didn't go too far before one of you told me not to do this.
Thanks again
Sent from my SGH-T959 using XDA App
Ive been rooted since we got S-Off and have been considering installing a custom rom. I just would like to know if callibrating (fully charge, fully drain, etc) is really necessary.
Nope, but its recommended. You'll notice your battery would be constantly misread if you don't do it between flasing roms.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Misread in what way?
DozeBeatS said:
Misread in what way?
Click to expand...
Click to collapse
He meant to say that your battery life would continuously improve as the rom discovered range limits of the battery voltage.
So can I fully charge it, and then drain it doing whatever necessary? Or do I use it normally to drain it? Also, is this done before the rom, or after?
DozeBeatS said:
Misread in what way?
Click to expand...
Click to collapse
This is just a personal theory. The operating system reads the battery percentage so say your at 60 percent and you flash a new ROM right. Which is basically taking the operating system off and replacing it again. Those battery states left from the old ROM would still be there if you don't wipe them. Mind you since your in recovery the operating system is not really running since you haven't booted up & while in recovery of course your draining battery (keep in mind, these phones were not made for use to be going in and out of recovery mode. Therefore if your phone is all stock, there would be know reason for the OS to misread your battery percentage.) So when you boot back up into the ROM the battery is looking at the older battery stats which could possibly cause the OS to misread the battery percentage. Like I sad its just a theory. Maybe someone with a little bit mire knowledge then me could chime in and better explain.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Why not wiping battery stats in recovery?
Coz i just saw it in 3D with the Shooter!
r0cky0790 said:
This is just a personal theory. The operating system reads the battery percentage so say your at 60 percent and you flash a new ROM right. Which is basically taking the operating system off and replacing it again. Those battery states left from the old ROM would still be there if you don't wipe them. Mind you since your in recovery the operating system is not really running since you haven't booted up & while in recovery of course your draining battery (keep in mind, these phones were not made for use to be going in and out of recovery mode. Therefore if your phone is all stock, there would be know reason for the OS to misread your battery percentage.) So when you boot back up into the ROM the battery is looking at the older battery stats which could possibly cause the OS to misread the battery percentage. Like I sad its just a theory. Maybe someone with a little bit mire knowledge then me could chime in and better explain.
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
Click to expand...
Click to collapse
Phone doesn't read battery percentage, it reads voltage and then calculates the percentage based on the lowest and highest voltages recorded.
Posted from SDX Developers
So it seems like your battery isn’t lasting very long. You search the Forum at SDX Developers and hear about this thing called “Battery Re-Calibration” and how its supposed to be great for increasing your battery life. Well, sorry to burst your bubble, but the guides for “Battery Calibration” lead you through some steps that actually do more harm than good! And here’s the reason why: The batteries in your mobile forms are high-capacity lithium-ion batteries. This kind of battery technology cannot be simply reset and “re-calibrated.” When you follow the steps to recalibrate your battery and delete the batterystats.bin file from your phone, you are getting rid of more than what you think… Stored inside that batterystats.bin file, your phone keeps detailed logs of the capacity of your battery and uses it on how it can be utilized more efficiently. By deleting this file, it basically wipes the phone’s memory on what the battery can really do. This actually does damage to your battery by using up valuable charging cycles, all while giving a fraction of battery life and performance. Now, you might be saying uh-oh, I’ve already re-calibrated my battery! What do I do?! Well here’s your answer. Use your phone like normal. Yes, your battery and phone wont perform as good as it can for a while, but after a few days, you will notice that it starts doing better and better. Give it time, its trying to rebuild all those logs that you just deleted I hope this helps and clears up this argument once and for all! Posted in SDX | Tags: battery, Battery Re-calibration, re-calibration, recalibrati
My "DU4L C0R3 SH00T3R" shot you down in 3D! -Security Off-
I'm thinking of making a script to reset my battery stats every morning when my phone is at 100%. I understand most of you won't believe this will extend battery life, but it has worked for me time and time again. After a couple days my overall battery life appears to shorten until the stats are reset. I believe this is because it resets the voltage threshold where the phone says to turn itself off. This is controlled by software because if the lithium ion battery gets too low then it is unable to recharge itself and will be damaged.
I am seeking advice on making a script. Can this be done with an app?
Sent from my HTC Amaze 4G using xda premium
I think you're wasting your time. Wiping battery stats does absolutely nothing. One of googles own developers said wiping stats is a myth. Its all placebo
---------- Post added at 02:11 PM ---------- Previous post was at 01:36 PM ----------
didnt want ya thinking i was making stuff up, so here ya go. just for reference, shes an android framework engineer. if you dont believe what she says, well then, i dont know what to tell ya
Dianne Hackborn - 6:42 PM - Public Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it for away.
Click to expand...
Click to collapse
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
I will do more testing to ensure no placebo issue. If I had to prove it, what would convince you guys?
Sent from my HTC Amaze 4G using xda premium
jcparks said:
I will do more testing to ensure no placebo issue. If I had to prove it, what would convince you guys?
Sent from my HTC Amaze 4G using xda premium
Click to expand...
Click to collapse
Did you not read my post? She's a Google engineer man, without her and her crew there would be no android. How would you disprove the woman? This a black and white issue here man, you don't need to test for placebo or anything else. Wiping battery stats, calibrating, whatever you wanna call it is a MYTH
Terrible idea.
Sent from my SGH-T989 using xda premium
mrmako777 said:
Did you not read my post? She's a Google engineer man, without her and her crew there would be no android. How would you disprove the woman? This a black and white issue here man, you don't need to test for placebo or anything else. Wiping battery stats, calibrating, whatever you wanna call it is a MYTH
Click to expand...
Click to collapse
So letting your phone and charging it to 100% is a Myth to extend battery life ? Sense it Is "calibrating"
Sent from my HTC Amaze 4G using XDA
fuego77 said:
So letting your phone and charging it to 100% is a Myth to extend battery life ? Sense it Is "calibrating"
Sent from my HTC Amaze 4G using XDA
Click to expand...
Click to collapse
No, what he is saying is that wiping battery stats does nothing to improve battery life. What he was reffering to as calibrating, is different than what u are thinking
Sent from my NRGized Amaze...
via xda premium
fuego77 said:
So letting your phone and charging it to 100% is a Myth to extend battery life ? Sense it Is "calibrating"
Sent from my HTC Amaze 4G using XDA
Click to expand...
Click to collapse
here ya go. try this and see if it helps
http://forum.xda-developers.com/showthread.php?t=712990
I get it. Some/most don't believe that wiping battery stats extends your battery life. I really do understand that it makes no sense. The only thing I know is that on the days that I wipe my battery stats, the battery lasts longer and I can be on my phone more without terrible battery drain.
I don't care why this happens or gives me the perception of it happening. I will happily be wrong and ignorant and enjoy my phone more. I just want to figure out how to make a script that resets when I hit 100% in the morning after charging.
How can I make a script that is either triggered by time or battery percent? I looked into Init.d, but that seems to only work on startup.
Thanks for the responses.
mrmako777 said:
here ya go. try this and see if it helps
http://forum.xda-developers.com/showthread.php?t=712990
Click to expand...
Click to collapse
from link
To also help with Battery Life you can do these steps exactly: 1) Turn your device ON and Charge the device for 8 hours or more 2) Unplug the device and Turn the phone OFF and charge for 1 hour 3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, we have tested this on our devices and other agents have seen a major difference as well.
Click to expand...
Click to collapse
I'll try this, first. Thanks
jcparks said:
I will do more testing to ensure no placebo issue. If I had to prove it, what would convince you guys?
Click to expand...
Click to collapse
MONEY. Lots of MONEY.
...
... The Android engineer stated that the file is wiped when you restart ... just restart your phone every morning. Probably good for a lot of things.
So the special charging trick helps. Must get a few extra mA into the battery or something. Would be really cool to script something to perform the shutoff and startups. Looking into tasker app.
Sent from my HTC Amaze 4G using xda premium
I don't see too much high drain activity during that 14H. Care to show us what apps were active, and for how long, during that 14H?
I ve not seen many differece whit wipe...
Sent from my GT-I9001 using Tapatalk 2
OK so to calibrate my new battery charge to full unplug then use till it dies then recharge to full and that's it? Is one cycle enough?
Thanks
Sent from my SCH-I605 using Tapatalk 2
there is no calibrating requirement for lithium ion batteries...
Not sure if it is good to let it die. I was told on the gnex that running it till it dies was not good for thag type of battery? Maybe someone with more knowledge can clarify that.
Travisdroidx2 said:
Not sure if it is good to let it die. I was told on the gnex that running it till it dies was not good for thag type of battery? Maybe someone with more knowledge can clarify that.
Click to expand...
Click to collapse
No adverse effect.
Sent from my SCH-I605 using Tapatalk 2
Actually you are not supposed to let them drain completely..
http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/289
I know this is slightly a different question. My issue is after you flash a new rom it seems the % is not entirely accurate. It will act fine for a while and then when u get to like less then 10% it drops dramatically like it wasnt reading it correctly or just like today I turned the phone off and did a reboot at 96% and when it powered on it was at 92% which is quite a bit of time on the note 2.
How do you get your battery reading accurate again after you have flashed a new rom? This has happened with my Bionic in the past as well. Thanks.
Sent from my SCH-I605 using xda app-developers app
nunyazz said:
Actually you are not supposed to let them drain completely..
http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/289
Click to expand...
Click to collapse
Correct, it is bad to deep discharge Lithium Ion batteries.
INCREMENTAL said:
I know this is slightly a different question. My issue is after you flash a new rom it seems the % is not entirely accurate. It will act fine for a while and then when u get to like less then 10% it drops dramatically like it wasnt reading it correctly or just like today I turned the phone off and did a reboot at 96% and when it powered on it was at 92% which is quite a bit of time on the note 2.
How do you get your battery reading accurate again after you have flashed a new rom? This has happened with my Bionic in the past as well. Thanks.
Click to expand...
Click to collapse
100-90% can vary depending on when you take it off of the charger. Basically, once the battery hits 100% on the charger, it will start slowly discharging itself to avoid damage. Once it get below a certain threshold, it will charge back up to capacity again.
Regarding rebooting, that process is fairly system intensive and it is natural to lose some battery life. In addition, prior to the reboot the OS is calculating a rough estimate of the percentage left partially based on previous use. So for example, if your phone was in deep sleep for hours, then you reboot where the CPU ramps up significantly, the percentage will alter to more accurately reflect the charge left in the battery.
In short, there is never a need to "calibrate" a battery, the OS will sort it out itself even after flashing different ROMs and it can take a couple days for kernels to settle.
Hey guys
On the weekends I'm usually home and I do use my phone quite a bit..but I'm mostly sitting at my computer doing so.
Is it better for me to keep the phone plugged in or should I be letting it drain? I heard that large drain cycles are not good for the battery and will wear it out faster...I've learnt that with my original Samsung battery...I have an extended one, now.
I've searched around...some people say one thing, others say the opposite...so what's the deal, really?
Thanks,
Elliott
The battery is desinged to be drained, you can always use your device plugged in when you are about to run outta juice.
Sent from the little guy
Right...but if I'm going to be texting constantly on the phone...is it better to just leave the phone on charge while I'm using it, or keep draining it/charging it back up?
As I said, use it.
If battery is low, just charge it while you do.
Sent from the little guy
Thanks.
Anyone else have any info on this?
Elliott
Bump
There was an article on XDA a while ago about the battery in mobile phones.
http://forum.xda-developers.com/showthread.php?t=1168036
Summary:
It doesnt matter if you keep it plugged in or not. It will do no damage to it.
What you shouldn't do with this kind of battery is draining it to 0% like some people suggest. In fact it is better to keep it charged above 40% to maximize the lifetime of your battery.
Here is also an other thread about it.
http://forum.xda-developers.com/showthread.php?t=1914417
Thanks for the threads.
The first and 2nd threads you posted through, seem to contradict each other.
The first thread said
Hence constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would. Avoid letting it sit on empty for too long; instead, keep it charged-up if you can.
Click to expand...
Click to collapse
The second thread said:
Avoid keeping your battery at 100%: Every source I referenced for this guide said the same thing about keeping your battery at a full capacity, but oranageinks.com explains [...]
Click to expand...
Click to collapse
lol, we gotta get a lithium battery Ph.D here
I never let my battery die on me, I only do it once to get rid of fuel gauge (although some say that it fixs it on it own after three days or so) whenever I flash a new ROM.
I always let it frain to 15 % or something like that.
Starholdest said:
Thanks for the threads.
The first and 2nd threads you posted through, seem to contradict each other.
The first thread said
The second thread said:
Click to expand...
Click to collapse
It doesnt really contradict each other. They warn you about heat that is bad for your battery when charged to 100%. Keeping your phone at 100% in a hot enviroment does more damage then having it at 40% in the same enviroment. The same applies to running an app that keeps your cpu running constantly thus heating up your phone.. But in normal circumstances it shouldnt do harm.
It sounds like someone is obsessed about their battery not being at 100% all the time.
Charging and discharging your battery shortens it's life. This is the way it was designed.
Chill, it's just a phone, not an artificial heart
Sent from my digital submersible hovercraft.
Lennyz1988 said:
It doesnt really contradict each other. They warn you about heat that is bad for your battery when charged to 100%. Keeping your phone at 100% in a hot enviroment does more damage then having it at 40% in the same enviroment. The same applies to running an app that keeps your cpu running constantly thus heating up your phone.. But in normal circumstances it shouldnt do harm.
Click to expand...
Click to collapse
Well I think they clearly contradict each other...one says to keep your battery charged up, the other says not to keep it at 100%...
I understand about the heat degrading batteries...but that's another discussion completely.
Anyone else have any opinion?
f-r said:
It sounds like someone is obsessed about their battery not being at 100% all the time.
Charging and discharging your battery shortens it's life. This is the way it was designed.
Chill, it's just a phone, not an artificial heart
Sent from my digital submersible hovercraft.
Click to expand...
Click to collapse
I wouldn't call myself obsessed...I'm just wondering if leaving it plugged in for a good portion of the day will reduce it's life. Because I did that with my original Samsung battery and it's barely usable for me now...just wondering if leaving it plugged in for long periods of time diminished it's life over a year and a half.
I think batteries don't like to be plugged all the time.
For what i've read in the last 4 years nobody knows exactly what's good and what's not for them.
You be the judge.
Sent from the little guy