Hi
I got a 6200mah extended battery
How do I calibrate the battery without rooting? Is there an app for calibration?
Or must I root in order to get accurate percentage reading for my battery?
Thanks
You don't need to calibrate lithium ion/polymer batteries.
Just whack it in, charge it up and go about your normal day
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The reading on the phone seems a bit off. It flatlines on usage for 2 hours at 3% seems phone not able to take accurate reading of battery true capacity in percentage
If the readings seem off, you can just charge to full and drain battery to about 1% then recharge. That is all calibrating really is. The concept of providing a low and high point
Those root apps that you see that "calibrate" the battery usually only wipe the phones battery stats which is placebo and has no effect on battery life. That file is essentially wiped everytime you charge to full and unplug.
Is this your first charge with it? If so just do a full charge cycle.
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Related
which is better, to wipe battery stats when the battery is full or when its empty?
BumpbumpbumP
You should never let lithium-ion batteries completely discharge as this puts additional strain on the battery and it will lessen it's life the more times you do this.
Charge to 100%, let it drain to 99%, charge back to 100%, enter recovery and wipe battery stats.
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MasDroid said:
You should never let lithium-ion batteries completely discharge as this puts additional strain on the battery and it will lessen it's life the more times you do this.
Charge to 100%, let it drain to 99%, charge back to 100%, enter recovery and wipe battery stats.
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Thanks for the tip.
Need a few tips to discharge my battery faster after I wipe stats...battery life has sucked since Ive had this phone(still a great phone) just need 2 improve my battery life..any help will b appreciated
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bnoot said:
Need a few tips to discharge my battery faster after I wipe stats...battery life has sucked since Ive had this phone(still a great phone) just need 2 improve my battery life..any help will b appreciated
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You should never fully discharge a Li battery; to recalibrate, wait until your phone is fully 100% (not just until the LED turns green), wipe stats and then unplug and use as normal. It will take a few days for the OS to recalibrate but after a few cycles of dropping it to around 15-20% and bringing it back up to 100%, you should see an improvement.
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OriginalGabriel said:
You should never fully discharge a Li battery; to recalibrate, wait until your phone is fully 100% (not just until the LED turns green), wipe stats and then unplug and use as normal. It will take a few days for the OS to recalibrate but after a few cycles of dropping it to around 15-20% and bringing it back up to 100%, you should see an improvement.
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Exactly right. Be careful, some people will tell you to discharge until the phone powers off. But this is risky, and not necessary. Over-discharge of a Li-ion battery can result in the battery no longer taking a charge, forcing replacement of the battery or recharging using a special battery meter with a "boost" function, which most people do not have access to (often easier just to get a new battery). The batteries have a safety circuit which is designed to prevent over-discharge, but its not 100% reliable. People on here have reported dead batteries on the Vision and other phones (after letting the battery discharge until the phone powered off), probably for this reason. Plus, the battery meter on phones are really not all that accurate to begin with, so discharging fully is not going to be any more accurate than discharging to a safe 15-20%. So zero reason to discharge the battery fully.
Ok...thank both of you 4 your information
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My phone seems to be using 2% battery every 15 minutes on standby, worse when its on.
When I check what is running, it says Android OS 50%...... what can I do? I usually charge my phone three times a day.
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I use a variety of apps to check what is going on with my phone.
Watchdog - monitors apps for excessive cpu usage
Cpu spy - see how long your phone stays at each frequency, but more importantly in deep sleep.
Battery monitor widget - monitors battery usage
System tuner pro - get detailed analysis of a recorded system usage.
Also, when in battery usage, I click android os to see how long it has kept your phone awake. Have you made any changes to your phone? Installed a custom ROM?
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Also...give it a few days of charge-ups. It really does make a difference.
FWIW, with moderate use, my Droid Charge 4G does about 10-15% every hour. So I don't even think 8%/hr is that bad... :/
no changes to the phone, its all stock. Any benefits moving to a custom ROM on the nexus?
I've had the phone for two weeks, battery has deteriorated. Now charge it three times a day.
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Crazy CS said:
no changes to the phone, its all stock. Any benefits moving to a custom ROM on the nexus?
I've had the phone for two weeks, battery has deteriorated. Now charge it three times a day.
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You probably never calibrated it properly to begin with. Charge to 100% > unplug > wipe batterystats.bin > let the battery drain completely until the phone powers off. Then charge it continuously over night and in the morning unplug and let the phone drain completely until it powers off.
I am a pretty heavy user as I text literally every 2 minutes all day (girlfriend ) and I manage to get 20-25 hours easily.
I also drain my battery out completely every day for good measure
Charging in between screws up your calibration, try not to charge unless you are below 15%. And do not disconnect it until it is fully charged (98-100%).
Note: I've also noticed wifi saves you a lot more battery juice than being on 3G/4G, so keep your wifi active if you are in range
KiNG OMaR said:
I also drain my battery out completely every day for good measure
Charging in between screws up your calibration, try not to charge unless you are below 15%. And do not disconnect it until it is fully charged (98-100%).
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This is just not accurate for Lithium Ion batteries, which have no cell memory and gain more from frequent shallow charges than deep charges.
krohnjw said:
This is just not accurate for Lithium Ion batteries, which have no cell memory and gain more from frequent shallow charges than deep charges.
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Not to mention draining a Li-ion past 5% can shorten the life of the battery.
Further Li-ion's have a lifespan measured in cycles. You get about 500 cycles on a typical Li-ion. A cycle is a drain and charge. If you use 50% of the charge and then recharge to 100% you only use half a cycle. By needlessly draining the battery you are using up limited cycles reducing the life span of the battery.
While I'm sure android's calibration needs to know the upper and lower boundaries of a charge I'm certain it would be smart enough to handle charges when the battery isn't completely drained. Most battery calibrations work this way. Every once in a while you need to charge to 100% drain to 5% and recharge without using to 100%
Wheres battery stats.bin located?
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Crazy CS said:
Wheres battery stats.bin located?
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Clockwork Recovery -> Advanced.
.. file is in /data/system i believe
its probably a bad app working with ICS.
Use watchdog and it will tell you.
Check your widgets that they aren't constantly refreshing.
I'm a new and I don't know if let Arc from x% to 0% batterry (Ex : you are watching movies and listen to music then go to over sleep) and Arc auto turn off --> Arc will be damage ?.
With your experience, would you let me know about this
Thanks !
well from looking at one angle it might cause u serious problem..but if u have an external charger then u can charge and use your phone
dont let lithium batteries to drain till single digits..keep them charging whenever u get a chance
Maybe if you have a custom ROM, my arc s has turned off by itself from low battery and i just recharged until it was strong enough to boot into the homescreen
http://en.wikipedia.org/wiki/Lithium-ion_battery
Prolonging battery pack life
Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.
Avoid storing the battery in full discharged state. As the battery will self-discharge over time, its voltage will gradually lower, and when it is depleted below the low-voltage threshold (2.4 to 2.9 V/cell, depending on chemistry) it cannot be charged anymore because the protection circuit (a type of electronic fuse) disables it.
Lithium-ion batteries should be kept cool; they may be stored in a refrigerator.
The rate of degradation of Lithium-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.
The rate of degradation of Lithium-ion batteries is also related to battery charge level; they degrade much faster when at 100% charge, than at lower charges. Since batteries die if deep discharged (depleted) and since a battery has some self-discharge it is frequently recommended to store batteries at 40% charge level.
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I hope that tells you the answer.
if you leave it @ 0% for any extended period you run the risk of it never taking charge again. i have done this to countless (not phone) batteries by accident and i can tell you that it is 100% true.
Pvy.
I didn't know that tnx for sharing.This XDA is a good thing,we find some usefull stuffs here,tnx guys.
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so basically, it is dangerous to leave it at both 0% and 100%?
d3FytH3m1Nd said:
so basically, it is dangerous to leave it at both 0% and 100%?
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Yes and no lol. Basically using your battery is the best thing you can do.
Pvy
sent from xda app
I better starting to treat my battery better then, haha..
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If you let it die it may give you a hard time getting it charged again. It needs a certain amount of power to boot the phone to a state where it can check the battery and start the charger. I have killed mine a couple times and had a few tense hours trying to get it charging again. So it is best not to let the battery die completely
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SL_Don said:
If you let it die it may give you a hard time getting it charged again. It needs a certain amount of power to boot the phone to a state where it can check the battery and start the charger. I have killed mine a couple times and had a few tense hours trying to get it charging again. So it is best not to let the battery die completely
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Thanks for your experience. But android don't have any soft auto turn off phone when battery is 10-15% ?
Besides the main battery power, there is also a reserve power when the battery is discharged. If the reserve is depleted, the battery will be completely discharged and cannot be used at all. Prolonged full discharge of the battery will shorten its working life.
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does anybody know if there is a battery calibration app for non rooted stock only phone?
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calibrating the battery on a modern smartphone is a myth.
Resetting the battery stats doesn't do anything - it only deletes a file that stores what application have been using the battery since it was last charged.
Draining the battery only drains the battery. There's no calibration meter or file or anything else. Neither the phone nor the battery benefit from this. In fact, draining the battery will actually shorten the lifespan of it.