I completely drained my battery from 100% until the phone shat off and then charged it to 100% again before calibrating the battery using the "battery monitor widget" app. After that, my battery seems to be draining even quickier than before. With the screen being at the top of the battery usage graph although my usage is the same as before.
Anyone else having that issue? I am rooted and running zedomax's kernel v2
Sent from my SPH-D710 using XDA Premium App
Sounds about right. Every time I've "calibrated" a battery this happens. Run it dead the first charge. Then give it a few days-to-a-week before making another judgement. So long as nothing happens to your battery stats and nothing extraordinary happens WRT charging/discharge you will then have (what I consider to be) a well calibrated battery. If you don't like the results, too bad. I consider them more accurate than the very rosy outlook you had before calibration.
Myself? I haven't been burned by the battery lying to me yet so I haven't bothered to calibrate. I only do that when I feel the meter is way off base...which is hard to tell since usage can vary so much from day to day. Only when it is glaringly obvious that something is awry do I do this...mostly 'cuz it takes so long to get things back to normal.
In summary, yeah...sounds about right. Don't panic and just use it normally if you want an accurate meter, whether you like the truth or not I think you'd prefer the truth.
miguelrodas said:
I completely drained my battery from 100% until the phone shat off and then charged it to 100% again before calibrating the battery using the "battery monitor widget" app. After that, my battery seems to be draining even quickier than before. With the screen being at the top of the battery usage graph although my usage is the same as before.
Anyone else having that issue? I am rooted and running zedomax's kernel v2
Sent from my SPH-D710 using XDA Premium App
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Click to collapse
Your battery behavior sounds to be normal.
You should be getting about 1% battery drain per hour when screens is off.
You should be getting about 1% per 2-3 minutes of screen on time, depending on usage.
Evo4g and Evo3d were getting about 1% per 2 minutes of usage.
This phone isn't that much different.
When it dies after calibration, you should charge it to 100% without break.
Following calibration, batteries still take a little time to settle. Give it a week or two and you'll see its true discharging rates.
Also, I've never heard of that app. Use the Battery Calibration from Ne'ma.
Transmission sent from a Galaxy S II.
Pheno.menon said:
When it dies after calibration, you should charge it to 100% without break.
Following calibration, batteries still take a little time to settle. Give it a week or two and you'll see its true discharging rates.
Also, I've never heard of that app. Use the Battery Calibration from Ne'ma.
Transmission sent from a Galaxy S II.
Click to expand...
Click to collapse
Battery Calibration by Ne'ma works well for me. The above posts sound right give the a few cycles to settle in.
Sent from my SPH-D700 using xda premium
Related
Im running GVillian 1.5 on my G2, my battery at stock would go green at 100% only.
I plugged in my phone at 55% and by 57% it went green, It was charged for about 25 minutes. I went to check on it and it stayed at 57% and I was like wtf..
I rebooted my phone and than it said 90% (I was assuming that my battery indicator app froze.....maybe because of my task killer)
My main problem is this: Why does it turn green at 90?
Secondly: Why did it charge from 57% to 100% in 27 minutes?
Is the calibration incorrect?
My battery also looses life semi-fast.. not as fast as others from there posts I had read.. But none the less, I can atleast SEE the numbers go down as im posting threads (browsing the net in general)
THANK YOU!
I remember reading somewhere that with CM (of which GV is derived from), it's expected behaviour that the charging LED will go green after 90%. At least that's the behaviour I'm getting on my phone as well.
If you're worried about battery calibration, I'll suggest you charge to 100% and then wipe your battery stats. There's a guide on how to do this (including doing a full calibration with draining your battery completely).
I think it's a debated issue, but I don't use task killers - they seem to me like more trouble than they're worth. Also, if you google for "Android Task Killers Explained" you'll find an article on why you shouldn't be using them anyway.
Afaik the kernels show green at 90% because the batteries often cycle charge up to 100%, drain back down to 90% and charge back to 100% when you keep them charged in order to not damage the battery. Because of this, anything over 90% is a "full charge" according to the phone.
I uninstalled my task killer and using watchdog..
My battery dies even faster.. at 100% using atk, I don't loose percent for like 25 mins..
With atk gone and watchdog replaced I went from 100 to 96 in about 15 mins
I'm going back to atk
You can't calibrate a l-ion battery for crying out loud. Back to topic....my battery stays green till I hit 25%, not sure what the big deal is.
You know you can kill running services from settings built into your phone right?
Sent from my T-Mobile G2 using XDA App
Spastic909 said:
You can't calibrate a l-ion battery for crying out loud. Back to topic....my battery stays green till I hit 25%, not sure what the big deal is.
You know you can kill running services from settings built into your phone right?
Sent from my T-Mobile G2 using XDA App
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Click to collapse
Chill man. You might try understanding something about the phone before stressing yourself over a irrelevant fact. It's called "calibrate battery stats" meaning it re-calibrates the status and parameters of the battery on the phone. It doesn't touch the battery.
Also, he's not talking about the battery icon on your screen - he's talking about the LED behind the speaker.
Spastic909 said:
You can't calibrate a l-ion battery for crying out loud.
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vvv This vvv
KCRic said:
Chill man. You might try understanding something about the phone before stressing yourself over a irrelevant fact. It's called "calibrate better stats" meaning it re-calibrates the status and parameters of the battery on the phone. It doesn't touch the battery.
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Click to collapse
We're not calibrating the battery, we're calibrating how the phone reads the battery. Yes it may be a misnomer, but it's a bit easier to say.
I have 2 extended batteries, one is 2200mAh and the other one is 2400mAh. They both drain very fast unless they are charged using an external charger. I was just wondering if anyone else was having draining issues as well.
XDA app on EVO 4G
shonmac11 said:
I have 2 extended batteries, one is 2200mAh and the other one is 2400mAh. They both drain very fast unless they are charged using an external charger. I was just wondering if anyone else was having draining issues as well.
XDA app on EVO 4G
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Click to collapse
I personally believe that the algorithm used to determine charge capacity is inaccurate. I have a 3500 mah battery and I have to go through a series of charging maneuvers to get it to charge completely. Once it is charged fully, the battery life is outstanding. But if I simply disconnect when the LED turned green, without my maneuvering, it "appears" to drain fairly quickly.
Posting & replying via the XDA Premium app
dougjamal said:
I personally believe that the algorithm used to determine charge capacity is inaccurate. I have a 3500 mah battery and I have to go through a series of charging maneuvers to get it to charge completely. Once it is charged fully, the battery life is outstanding. But if I simply disconnect when the LED turned green, without my maneuvering, it "appears" to drain fairly quickly.
Posting & replying via the XDA Premium app
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Click to collapse
I have the same exact problem. Do you think an update in the firmware could possibly fix this problem if it were brought to HTC/Sprint's attention
XDA app on EVO 4G
shonmac11 said:
I have the same exact problem. Do you think an update in the firmware could possibly fix this problem if it were brought to HTC/Sprint's attention
XDA app on EVO 4G
Click to expand...
Click to collapse
It would need to be more than 1 person complaining to get that kind of result. id by chance you're on PRL&NV 1.90, try downgrading to 1.77, as many users see better battery life on 1.77 over 1.90.
teh roxxorz said:
It would need to be more than 1 person complaining to get that kind of result. id by chance you're on PRL&NV 1.90, try downgrading to 1.77, as many users see better battery life on 1.77 over 1.90.
Click to expand...
Click to collapse
I don't know how to do that and I'm not rooted
XDA app on EVO 4G
If the battery drain you see is the INITIAL drain this is to be expected. Your phone will drop to about 92% or so in the first 10 minutes. After that it should be smooth sailing
(if this is not what you're talking about, disregard this comment haha)
dougjamal said:
I have a 3500 mah battery and I have to go through a series of charging maneuvers to get it to charge completely.
Click to expand...
Click to collapse
Can you define maneuvers?
I have a 3500 mah battery too. I usually leave it on the charger for a good 90-120 minutes after the green light is lit. Once the waveform in the batt monitor widget has stabilized to one resembling a sawtooth wave (/\/\/\/\/\/) with identical amplitudes, I consider it done. I followup by shutting the phone down, waiting til the amber light is green again, then unplugging/booting up.
Depending on the amount of use during the previous off charger time, rebooting it keeps the os from slowing down.
Greenfieldan said:
If the battery drain you see is the INITIAL drain this is to be expected. Your phone will drop to about 92% or so in the first 10 minutes. After that it should be smooth sailing
(if this is not what you're talking about, disregard this comment haha)
Click to expand...
Click to collapse
That's what happens but not around 90% its more around 70% then it last for about 8 hours
XDA app on EVO 4G
I have a 3000mah battery and I use battery snap to monitor volts and remaining time left on battery. The battery status could say 100% but I look at the volts. If it says 100% but only 3.991 Volts for example then I know my battery isn't fully charged and within 10min it will be at 88% . But when my volts say 4.204 volts then I know it's truly at 100% and battery life is great . So I suggest check the voltage before unplugging.
Sent from my PC36100 using XDA App
What do you mean manuvering
?
Sent from my Desire HD using XDA Premium App
ive read lots of threads about the battery on the evo, its natural for it to drop from 100% to 90% within the first 10 min, something about the evo not charging the battery fully to help preserve the battery or something, there is some steps you can do to charge the abttery fully, but that invloves turning it off, plugging, unplugging, etc... personally i use an external battery charger, and 2 batteries, it seems to charge the battery better, and it doesnt seem to drop that 10% so quickly, it still drops faster then it should, but it seems to stick a little longer, but after it drops that 10% it stabalizes and drops a lot slower, u can pickup batteries and chargers cheap
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.
Sent from my Galaxy Nexus using xda premium
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?
Sent from my Galaxy Nexus using xda premium
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.
Sent from my Galaxy Nexus using xda premium
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.
Sent from my Galaxy Nexus using xda premium
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Click to collapse
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%).
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Sent from my Galaxy Nexus using xda premium
Crazy CS said:
Wheres battery stats.bin located?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
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.
So i started using faux kernel and Juggernaut 4.1. I had about 16 hours of battery life. Now my phone drops from 100% to 94% in like 20 minutes. Any help or ideas? Thanks guys.
Sent from my SGH-T989 using XDA App
Download "battery calibration"
Follow steps provided within app
All fixed
Unless you Hella used your in 20 minutes to make it drop that fast
Sent from my SGH-T989 using XDA App
since you're rooted, you can use cwm(ClockWorkMode) Recovery, go to advance and clear battery stats(battery calibration)... or you can shut off you phone, let it charge 100%.. takeout the battery for about 50sec(inspect the battery for leakage"which could damage your phone, if it's leaking" if it's leaking replace your battery), put it back, plug your charger, turn you phone on, while plugged let it show the 100% charge on the notification bar then you should be good..
I have noticed that my battery life drops pretty quickly if i am doing a lot of browsing, etc on the phone.
If its in standby it loses 1% approx every 7-11 minutes.
jordanishere said:
If its in standby it loses 1% approx every 7-11 minutes.
Click to expand...
Click to collapse
I think it was normal, all i can think of is you leave wifi on, weak wifi signal when screen off. BTW im just saying
Im having some battery issues as well.. except ive done the battery calibration through the die hard battery script and by wiping my batter stats through CWM. ive tried both of these ways then using the phone for about a week after ive done either. the problem is that my phone wont let the battery fully drain.. or even close, ill show to have about 5% left and ill check the remaining mV through the die hard script and it will have 3615mV left, which according to the the script, should be about 40% remaining. fully charged battery has 4208mV at total capacity does anybody know what the mV level should be when the phone is less than 5% and how i can fix this?? I am getting pretty good life out the battery usually lasting from 22+ hours but if this is right i should getting alot more.
blchff04 said:
I am getting pretty good life out the battery usually lasting from 22+ hours but if this is right i should getting alot more.
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Click to collapse
22hrs sounds pretty good to me.
Sent from my Hercules using XDA App
jordanishere said:
22hrs sounds pretty good to me.
Its great compared to stock but Im on a mission to maximize the battery as much as possible and when i cant use the remainder 40% of the battery it gets frustrating...
Click to expand...
Click to collapse
-Does keeping the phone plugged in via USB (when battery is at 100%) decrease battery life?
-Approximately how long should the battery last if the phone idles? If the screen is on 24/7?
-Are these batteries any good compared to the stock one?
IamaznX said:
-Does keeping the phone plugged in via USB (when battery is at 100%) decrease battery life?
-Approximately how long should the battery last if the phone idles? If the screen is on 24/7?
-Are these batteries any good compared to the stock one?
Click to expand...
Click to collapse
1.) Plugging in the phone while charged does decrease the battery life as you can only charge a battery for lets say 1000 cycles or so.
2.) Battery life depends on how long you use your phone, your ROM so I couldn't say. But my phone with the screen on lasts about 8 hours (SGH-T989)
3.) Check the reviews, it has five stars so I would assume that the battery is pretty good.
nivekx9 said:
1.) Plugging in the phone while charged does decrease the battery life as you can only charge a battery for lets say 1000 cycles or so.
2.) Battery life depends on how long you use your phone, your ROM so I couldn't say. But my phone with the screen on lasts about 8 hours (SGH-T989)
3.) Check the reviews, it has five stars so I would assume that the battery is pretty good.
Click to expand...
Click to collapse
Is losing about 30% battery life overnight (about 7 hours) with the screen off normal?
IamaznX said:
Is losing about 30% battery life overnight (about 7 hours) with the screen off normal?
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Click to collapse
Ehh I wouldn't think so...unless something is waking it up every now and then like a app or something...I normally loose about 10% if that if I let it sit over night
Sent from my SAMSUNG-SGH-T989 using xda premium
IamaznX said:
Is losing about 30% battery life overnight (about 7 hours) with the screen off normal?
Click to expand...
Click to collapse
Not at all. I would use a battery monitor app to see what's draining the battery because that's very excessive drainage.
I can't imagine how much it drains when you're actually using it...
what rom/kernel are you using?
I agree with what others here have said, but just to add a little something, I heard that for the best battery "life" its best to try and keep it between 20% to 90%. Don't quote me, I heard it on one of those YouTube tech channels, I wonder if that is true. I always thought that it was best to completely kill the battery and then fully charge it.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
inocent3 said:
I agree with what others here have said, but just to add a little something, I heard that for the best battery "life" its best to try and keep it between 20% to 90%. Don't quote me, I heard it on one of those YouTube tech channels, I wonder if that is true. I always thought that it was best to completely kill the battery and then fully charge it.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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Click to collapse
That's for a new battery. Only for a couple full cycles. Else it's best to charge when you hit 15-20 and charge uninterrupted to 100.
Sent from my SGH-T989