Hi everyone, i was wondering if someone can tell me if charging the battery from 10-15% to 100% its bad for my device? Also which recomendations you suggest for reduce battery damage on the device? Ive read about the li-polymer batteries and some says that is bad for the battery to leave it conected log periods of time, also other mentioned that leaving the battery till it reach 10-15% is good method for prolong its battery life, but imnot sure about this tips.
Can someone tell me some recomendations?
I know from experience, li-po batteries do not last if fully discharged everytime, meaning don't run it till it shuts off. I am charging in the 10-15% range. As far as leaving it connected to the charger, I'm not sure if thats bad. If all you did was use it while connected to the charger, yes that will result in reduced battery life due to it not getting discharged.
Is this the definitive way to do it?
http://hemorrdroids.net/battery-calibration/
Those steps came from here, xda devs.
1. Run the device down until it turns itself off.
2. Turn it back on and wait for it to turn itself off again.
3. Remove the battery for 10 seconds.
4. Replace the battery, but leave the device off.
5. Charge the device until full and then for another hour.
6 **Root users only** Using a Terminal Emulator, type “su” enter, followed by “rm /data/system/batterystats.bin”
7. Run the device’s battery down until it turns itself off.
8 .Turn the device on and charge for at least 8 hours.
9. Unplug the device, turn off, then charge for another hour.
10. Unplug the device, turn on, wait 2 minutes.
11.Turn off again and charge for another hour.
12. Restart and use as normal.
Quite a performance! Does it preserve battery lifespan, or is it more to do with slowing down battery drain and does it really work?
He mentions 2 interesting things:
"Generally charge them before they get lower than 50%". I didn't know that, so it's actually better to charge more often and not let it drain down?
"USB charging is actually better for the battery and you may get up to 1 hours more standby time." So you gain an hour standby but it takes twice as long to charge the phone.
Nice manual
Will try it
Sent from my GT-I9100 using Tapatalk
Some will say that its complete nonsense .
Overcharge for 8 hours ??? how does the battery not turn charging off at 100%
Recharge 50% the accepted figure is not to go below 20% to often .
They may be right or wrong their are so many contrasting views on battery charging .
jje
Discharging battery and then reloading it fully, it's the normal procedure for battery calibration for almost all the devices in the world (including computers, etc.).
Step 8 to 11 seems quite a bit strange however.
hm, just seen a different way to calibrate the battery. basically, you drain the battery, take it out for a couple of minutes, put back in, then try to turn it on to make sure it's completely flat.
then you charge it fully, then boot to recovery and wipe battery stats then drain and fully charge. so... which one is more likely to be the better?
that guy also advises to repeat that 12 step, 1-2 day long tedious procedure "every month or so".
it is lunacy honestly speaking
does it work? did he died ?
LOL I dont understand .... I just read in another day that NEVER LET BATTERY GO LOWER THAN 15% and know I read "drain drain drain" Oh welll ...
I also thought that at 100% the charging process stops.
Although this thread is about battery calibration, these questions about battery charging always pop up.
Battery calibration is the process by which you set your device with your battery data.
Every single battery is slightly different. Although there are minimum stantards to every spec of the battery, each battery is different.
Calibrating your battery is nothing more than setting your phone to the real specs of your own battery (since the phone comes configured with the battery factory standards). For example, your phone may be set to use a battery which maximum charge is 1650 mAh, but your battery has a maximum charge of 1625 mAh. That may be within the acceptable factory standard, meaning you have a normal battery, but that also means that your phone will never indicate a 100% charge after you unplug the charger.
If you calibrate that hypothetical battery, you will "tell" your phone that its maximum charge capacity is actually 1625 mAh, meaning from that on your phone's battery indicator will be more accurate.
For that reason, it is necessary to fully discharge and fully recharge your battery for the calibration process, since your device must read the actual specs (minimum charge, maximum charge, charging current, etc) of the installed battery.
I don't know about how many times this full cicle (discharging and recharging) must be performed, but that is the reason why it must be performed for the calibration to succed.
A DIFFERENT THING is the normal discharging and charging process during normal use of the phone.
In this case, you should NEVER let your battery go under 20% and, what few people know, it also should never go over 95%. This stresses the battery and diminish its life time.
Also, and there's a lot of doubts about this, the lower the charging voltage, the slower the charging process, but the longer the battery life.
High charging voltages (like the one used by the charger sold with the phone, which is around 5V) stress the battery, diminishing considerably its life time.
That is true for all lithium-ion batteries!
Therefore it is better to charge your phone through USB (which uses around 4,3V) than to do it using the charger provided with the phone.
You may be asking "If the charging voltage of the charger provided by the manufacturer stresses the battery, why does the manufacturer provide such charger?"
For purely commercial reasons! Higher voltages mean shorter charging cycles, which please the consummer. Moreover, the battery capacity loss with the factory provided charger is around 15-20% a year (considering "normal" to "heavy" use). That is to say that after a year your battery will only reach 80-85% of the maximum charge it used to reach when it was new. And by that time your manufacturer expects you to consider buying a new phone, with more features.
Summing it up:
- calibration is just the process by which you "tell" your phone what the real specs of your battery;
- in normal use, charging your phone through USB is better than doing it with the manufacturer provided charger;
- try not to let your battery charge go under 20% nor above 95%;
- if you're interested, read more about it at batteryuniversity.com
Spin three times in clockwise direction with left middle finger on your nose while blinking your eyes with the phone plugged in.
Jump in the air 3 times.
Unplug phone.
Thats some messed up instructions.
Do you have any idea what kind of strain you're putting on the battery while doing all that?
All you're gonna get is some extra minutes, maybe an hour but is it really worth it because you're just reducing overall battery lifespan by doing that procedure over and over.
Specially when you constantly keep the battery at 4200mV (full charge) for a long time. You're practically killing it by overcharging.
Transmitted from a Galaxy far far away via XDA telepathy.
m2smoe said:
Spin three times in clockwise direction with left middle finger on your nose while blinking your eyes with the phone plugged in.
Jump in the air 3 times.
Unplug phone.
Click to expand...
Click to collapse
that made me chuckle
Never done a calibration on a battery and most of the time i even didn't let battery to discarge very much and then load it again. Never had a problem with battery life it last how long it should last every time and i've used that battery for years. So the battery "calibration" are kinda useless.
Matriak31 said:
that made me chuckle
Click to expand...
Click to collapse
Well then, my job here is done
m2smoe said:
Well then, my job here is done
Click to expand...
Click to collapse
it is indeed...i should follow you just to have more laughs like that cheers
RenatoN said:
Although this thread is about battery calibration, these questions about battery charging always pop up.
Battery calibration is the process by which you set your device with your battery data.
Every single battery is slightly different. Although there are minimum stantards to every spec of the battery, each battery is different.
Calibrating your battery is nothing more than setting your phone to the real specs of your own battery (since the phone comes configured with the battery factory standards). For example, your phone may be set to use a battery which maximum charge is 1650 mAh, but your battery has a maximum charge of 1625 mAh. That may be within the acceptable factory standard, meaning you have a normal battery, but that also means that your phone will never indicate a 100% charge after you unplug the charger.
If you calibrate that hypothetical battery, you will "tell" your phone that its maximum charge capacity is actually 1625 mAh, meaning from that on your phone's battery indicator will be more accurate.
For that reason, it is necessary to fully discharge and fully recharge your battery for the calibration process, since your device must read the actual specs (minimum charge, maximum charge, charging current, etc) of the installed battery.
I don't know about how many times this full cicle (discharging and recharging) must be performed, but that is the reason why it must be performed for the calibration to succed.
A DIFFERENT THING is the normal discharging and charging process during normal use of the phone.
In this case, you should NEVER let your battery go under 20% and, what few people know, it also should never go over 95%. This stresses the battery and diminish its life time.
Also, and there's a lot of doubts about this, the lower the charging voltage, the slower the charging process, but the longer the battery life.
High charging voltages (like the one used by the charger sold with the phone, which is around 5V) stress the battery, diminishing considerably its life time.
That is true for all lithium-ion batteries!
Therefore it is better to charge your phone through USB (which uses around 4,3V) than to do it using the charger provided with the phone.
You may be asking "If the charging voltage of the charger provided by the manufacturer stresses the battery, why does the manufacturer provide such charger?"
For purely commercial reasons! Higher voltages mean shorter charging cycles, which please the consummer. Moreover, the battery capacity loss with the factory provided charger is around 15-20% a year (considering "normal" to "heavy" use). That is to say that after a year your battery will only reach 80-85% of the maximum charge it used to reach when it was new. And by that time your manufacturer expects you to consider buying a new phone, with more features.
Summing it up:
- calibration is just the process by which you "tell" your phone what the real specs of your battery;
- in normal use, charging your phone through USB is better than doing it with the manufacturer provided charger;
- try not to let your battery charge go under 20% nor above 95%;
- if you're interested, read more about it at batteryuniversity.com
Click to expand...
Click to collapse
You should post the source for your info, cause I am seeing a lot of incorrect information in here.
If you guys want to learn about your battery, visit the site Battery University
The OEM replacement battery is worth about $10.
Save yourself the stress....use it...charge it when you need to...if the battery ever fails cough up $10.
Sent from my GT-I9100 using XDA App
The way I would calibrate my batteries is a bit different. Lithium ion batteries don't need to be drained then charged to full AFAIK, and I even remember reading somewhere that draining it is actually only for NiCad batteries. It used to be relevant when phones were using NiCad but not anymore.
Read: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
As such I have read that the universal way to 'calibrate' batteries is by charging to full, using for a couple of mins and charging again.
What I have been doing is:
1. Charge to full when phone is switched off (doesn't matter if it's from 0% or 99%).
2. Switch on the phone, use for 5 mins.
3. Switch off then charge until full.
4. Repeat step 2 once more
That's it! It seems pretty simple but it seems to have worked for me.
The way i do it is different. Firstly i have the battery calibration app from the market by Nema..then i fully charge my phone and when it says its fully charge i go into the app. There it gives me the instructions on how to calibrate...First i wait till i charge the phone without any interruptions. then click on the app and wait til the battery goes to 4200MV and then i press the calibrate button and then the app does it for me. Then i drain the battery again without any interuptions or breaks during that time and then charge it again once battery dies down and thats it.
there are so many ways being touted on the forums you really dont know which one to go for...but whatever works for each person then who are we to tell someone different just thought i share that
If my battery dies, or gets significally lower capacity after 1 or 2 years of usage, I'll just buy a new one if I plan to keep the phone longer.. Going through these rituals and painstakenly monitor my battery % so that it never goes below 20 % or above 95 % is just not worth it.. Doesn't increase the life THAT much anyway.. I use the phone until I hear the beep for low batt, and from there until I have a charger available.. Most of the time it's before it reaches 10 %, thats good enough for me.. Once in a while it might even go so far that it dies.. Then I charge it till it says 100 %.. Most of the times I plug it when going to bed, and let it charge over night.. This is normal usage and what the battery should be designed to handle, and so far it does..
Many people just think about how to protect the Samsung Galaxy S i9000 battery life of phone, today i introduce some experience to protect our phone battery, so that we can save the battery life from these ways::highfive:
1. Fully Charged
To maintenance of a lithium battery, must occasionally let one of the electrons to maintain liquidity, to ensure that at least once a month to go through a full charge (battery is charged up about 20% full).
2. Do not use non-original straight and "universal charge"
Because the third-party charger specifications and quality can not be guaranteed with the original charger, battery might be damage repair may also cause disputes.
Why rushed 100%, they still continue to charge?
Power to 100% does not mean that your battery is already full. To Charge Gauge maximization, and roughly 40 - 80 min rushed fully full of From 100%. If the battery is aging, which will require more time in waking this process.
3.Do not drain the battery.
Try not to use automatic shutdown on the line, often run out of battery power will affect the battery capacity and charge cycles.
4. Do not overcharge
Stop charging long after the battery has been fully charged phone prompts, 40 to 80 minutes.
5.Note heat
Please keep in charge when the phone is easy to heat the place. Because the battery charging will occur.
Today, i just write thess ways to help you guys protect the cell phone battery, just do hope it is a help to you!
junior2012 said:
4. Do not overcharge
Stop charging long after the battery has been fully charged phone prompts, 40 to 80 minutes.
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Click to collapse
If you charge the phone while it's turned off it shouldn't overcharge anyway.
It charges to 99% then stops automatically. So you can leave it charging overnight without damaging the battery.
I used this: http://www.androidzoom.com/android_...vity/battery-saver-dx-power-widget_blaeb.html
I'm sure there are some others doing the same...
Recharge Early prolongs Battery Life
It's absolutely impossible to Overcharge a Lithium Ion Cell with the Stock Charger, despite of On/OFF State of the Phone so don't worry. A Lithium Ion Cell would degrade a lot (permanently) if you'd overcharge it but this is really not a Problem those days, because the Recharge Process will surveilled by a seperate Microprocessor to avoid any overcharging. In my Experience it is much better only to recharge the Battery ONLY when the Phone Power is Off- that's what every Manufacturer writes in the User Manual. Me personally using a Universal Charger with a second battery, so i can always use the Phone and the USB Connection will not be stressed. Also i am recharging early- that means a Battery Level from 30-70 %. If you recharge when the Batttery Level is about 3.7 Volt recharging goes much faster and the Battery will not be stressed that much like when you run it till it's completely empty- that should implicitly be avoided!). It's NOT necessary to decharge completely- o.k. If you don't do that from time to time it affects the shown Battery Level a little bit but if you recharge early and often this is not a Issue at all.
I run battery cycle from 25% to 80%. I keep it between these levels. It is good for Lithium Ion Cell batteries as neither cell is empty. If it gets empty, impurities settle on the anode/cathode.
There was an app which allowed limiting max charge. Was it NSTools or something on those lines. What was it called? *scratching my head*
Hi everyone, i've ordered a new battery (Polarcell 2900mah) and i should receive it this week...i saw somewhere that android does not really read the battery percentage, but instead estimate it. I also read about battery recalibration or initialization which is fundamental for android to proper estimate the actual power contained in the battery, but i'm a little bit confused anyway...since i want my new battery to work proper and last as long as it could, do someone among you know about this fact? Is there any guide? I can't find anything.
P.S. i have a I9505 (jfltexx) and i'm actually on RR v5.6.3...so android 6.0.1
That is complete BS.
I never "calibrated" mine.
PS: most calibration apps do the same thing, and that is to delete a file that has no connection with the battery percentage. This was stated by a Google engineer.
Batteries should come charged at 50%
That's the perfect storage charge.
If there was any calibration method, then it would be: let it discharge completely, then recharge it to 100%.
Another note, valid for Li-on batteries: The deeper the discharge the shorter its life will be. In other words, if you let it discharge as low as 20%, or lower, every day, the battery life (before it needs replacing again) will be shorter.
Another thing: Leaving the battery at 100% charge for extended periods can also damage its ability to hold a charge for a longer time.
GDReaper said:
That is complete BS.
I never "calibrated" mine.
PS: most calibration apps do the same thing, and that is to delete a file that has no connection with the battery percentage. This was stated by a Google engineer.
Batteries should come charged at 50%
That's the perfect storage charge.
If there was any calibration method, then it would be: let it discharge completely, then recharge it to 100%.
Another note, valid for Li-on batteries: The deeper the discharge the shorter its life will be. In other words, if you let it discharge as low as 20%, or lower, every day, the battery life (before it needs replacing again) will be shorter.
Another thing: Leaving the battery at 100% charge for extended periods can also damage its ability to hold a charge for a longer time.
Click to expand...
Click to collapse
I'm not talking about fabulous apps which do magic things...i mean, as i read, there should be some cycles of charge and discharge which nave to be done, not for the battery, but for android, in order to really manage the power in the battery, without those 20% from 100% to 80% dropping like stones. Sorry for my bad english, i hope i explained myself.
Guarino95 said:
I'm not talking about fabulous apps which do magic things...i mean, as i read, there should be some cycles of charge and discharge which nave to be done, not for the battery, but for android, in order to really manage the power in the battery, without those 20% from 100% to 80% dropping like stones. Sorry for my bad english, i hope i explained myself.
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Click to collapse
No it's complete crap. Android does that perfectly fine. There is really nothing you need to do.
That only applied to phones 4 years ago. You never need to calibrate it anymore.
Guarino95 said:
I'm not talking about fabulous apps which do magic things...i mean, as i read, there should be some cycles of charge and discharge which nave to be done, not for the battery, but for android, in order to really manage the power in the battery, without those 20% from 100% to 80% dropping like stones. Sorry for my bad english, i hope i explained myself.
Click to expand...
Click to collapse
As I said, I never calibrated mine and it works.
That whole "Let it discharge completely and then charge it over night" is just a left-over from the old batteries. Those new kind of batteries don't need that.
Those batteries aren't ment to stay at full charge all the time. That is the reason for the fast drop. Mine drops for 100% to 99% in the first 5 minutes. And it drops like that until it stabilizes at around 94%.
The moment your battery needs calibration is when the phone shows 30% left and it suddenly turns off. That means it shows a wrong percentage, or that the battery needs to be replaced.
OK, then i'll just swap that battery and use the phone normally...thank you all
lithium batteries don't want to be left fully charged or fully discharged for too long. it damages the poles if that's the right way to say it. so outside of that just follow what your new battery makers recommendations