Hi every, I'll like to know some battery life tips because I think mine is to short at software level or maybe at hardware don't know yet. I've GNex 1.9.0 installed with Trinity kernel. I've also WiFi enabled, 3G enabled and PowerAmp running all the time but I notice my battery drains to fast. How I can fix this? Do I must re-calibrate the battery or something else? I'm totally lost on this topic so any help will be appreciated :good:
Yea I want this too
Sent from Nokia 3310
To recalibrate a lithium ion battery,
1) Discharge battery completely.
2) Charge battery completely.
Unfortunately, that's about it.
and there is no good extended battery case for the phone.
unless you want the current one which bulks up your phone 2x (i believe at 3800)
if only there was a morphie juice case for the gnex
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I just reset the battery log or whater it is called in recovery and will recharge. Is there anything else I should look at. I am already running setcpu profiles with the profiles suggested in the thread. Is there anything else I should do?
PAPutzback said:
I just reset the battery log or whater it is called in recovery and will recharge. Is there anything else I should look at. I am already running setcpu profiles with the profiles suggested in the thread. Is there anything else I should do?
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If the battery is literally brand new remember that most lithium batteries have a "work in phase" where it will take a few days and power cycles to work to optimal battery life. Give it a week and see fi you still have the issues, If you do then the battery wasnt the problem and something else is causing a battery drain.
If it makes you feel better i have tried EVERY battery tip trick etc in this forum just about and i still get no where near the battery life 90% of the long life users get.
I have never used their batteries but looking at batteryboss they seem to not live up to what they are supposed to.
On my evo the first 10-15% of my battery drops super fast but evens out after that, I am using stock Battery with Fresh 1.01 and kernal 26 running cpu at max of 922.
I think the batteries are worth it. The one in my palm treo would last a few days compared to stock. I think this one just needs to be broke in hopefully.
The Evo does NOT trickle charge batteries. It charges them to 100% and then shuts off until the battery hits around 90%. Then it turns back on and brings it back up to 100%. This is the reason your battery drops 10% really fast, and then lasts for a good long while.
Total fail on HTC's part. They put a lot of stupid into this phone for how long they've been making phones...
Just recieved my 2400 MAH extended battery, I have had the device running now for 12 hours straight with all connectivity turned on (including syncing, wifi, data) and in that time I have also done some web browsing. The battery is still at 100%.
I know it is an extended battery but still, by now my standard battery would be at 50% roughly.
My concept is that the standard battery the phone comes with maybe faulty or have some problems?
Any thoughts or ideas?
dhiral.v said:
My concept is that the standard battery the phone comes with maybe faulty or have some problems?
Any thoughts or ideas?
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It heavily depends on the ROM you're using... I've tested several Sense and non Sense ROMs and the variation of the battery could go from 1 to 3 days aprox. I'm actually using OpenDesire latest ROM and its easy to get 2 days of battery life with a normal use and 3G/Sync enabled all the time.
Obviously having a more powerfull battery also helps...
AzureusPT said:
It heavily depends on the ROM you're using... I've tested several Sense and non Sense ROMs and the variation of the battery could go from 1 to 3 days aprox. I'm actually using OpenDesire latest ROM and its easy to get 2 days of battery life with a normal use and 3G/Sync enabled all the time.
Obviously having a more powerfull battery also helps...
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Well i've got an unrooted desire and using stock 2.2 rom. The battery life has been so bad, even when i turn syncing off.
I know its an extended battery but still why was the standard battery so bad
Hmm. Not sure. I don't have a bad battery life, but that sounds pretty awesome as far as battery life goes. You wouldn't happen to have a link to where you bought that from would ya? Would be interested in taking a look at it my self. Is it larger then the normal battery, or just higher capacity? I know many of the aftermarket batteries are a good deal larger then the stock ones.
dhiral.v said:
The battery is still at 100%
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I can't see how your battery could possibly show 100% after 12hrs usage
It's either bad battery stats, or the battery status indicator isn't scaled correctly for your battery.
Regards,
Dave
it is probably because its voltage figure is still higher than that of a standard one.
everyday when I use the galaxy nexus my routine is.
before I sleep, I plug my phone to my phone charger and I pull it out after I wake up. so its basically charging for about 5-7 hours on average.
is this decreasing my battery life? because ever since I had the nexus, I did this and I have never had battery life compared to what people post on xda despite trying out roms/kernels.
so that was my first question.
my second question is, is flashing like getting a new device? after I flash, is the battery life suppose to be bad?
I constantly flash almost every other day and I'm not sure if this is the reason my battery life is so bad.
am I suppose to use my phone for couple weeks before I get good battery life?
btw. I have a cdma galaxy nexus .thanks
Sent from my Galaxy Nexus using XDA App
1°) Is battery life reduced after long charging? This is a good question. I have no proof on that point but I think so. Continuing to keep current going through the battery once fully charged does not improve the battery capacity. The analysis I made on several smartphones shows that some of them stop the current while fully charged ( for example HTC touch Cruise) but most of them keep a charging current.
Samsung smartphones are difficult to analyse because they do not give any data on the current going through the battery
2°) Battery calibration will not improve the battery capacity: Once the battery capacity has been reduced, this is due to chemical changes in the battery, there are no way to repair it. What we could expect is to remove the battery shutdown artefact by adjusting internal parameters of the battery control circuit, so that the state of charge calculus will be more accurate again.
Some more details are given here: http://78michel.unblog.fr/htc-desire-battery-shutdown-analysis/ and in some other pages on this blog
7_michel said:
1°) Is battery life reduced after long charging? This is a good question. I have no proof on that point but I think so. Continuing to keep current going through the battery once fully charged does not improve the battery capacity. The analysis I made on several smartphones shows that some of them stop the current while fully charged ( for example HTC touch Cruise) but most of them keep a charging current.
Samsung smartphones are difficult to analyse because they do not give any data on the current going through the battery
2°) Battery calibration will not improve the battery capacity: Once the battery capacity has been reduced, this is due to chemical changes in the battery, there are no way to repair it. What we could expect is to remove the battery shutdown artefact by adjusting internal parameters of the battery control circuit, so that the state of charge calculus will be more accurate again.
Some more details are given here: http://78michel.unblog.fr/htc-desire-battery-shutdown-analysis/ and in some other pages on this blog
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thanks for the answer to questions1.
but I think I may have written question number 2 in a bad way which was not what I intended. I did not mean to ask if battery calibration increased battery life.
most people already know that it does not.
what I am asking is if battery life is suppose to be calibrated(?) right after you flash a new rom or kernel.
I asked this because I flash a lot and don't get good battery life. I'm not sure if its my device that is the problem or the constant flashing that causes this.
I have currently stopped flashing for 2 days now so I will report back if that was the problem.
anyways thank you for the reply
Sent from my Galaxy Nexus using XDA App
To answer question 2, you do not need to calibrate the battery and flashing roms does not consider your battery bad. The community here does have different opinions on calibration but it wasn't too long ago I read an article where google devs came out and told everyone this isn't really needed.
I have had a droid incredible and now the gnex, and have flashed numerous roms. I have never calibrated my battery and typically experience pretty good battery life AFTER I have played with the phone and set it up and stopped turning on the screen ever 2 minutes
To answer question #1:
The battery is a Lithium Ion battery. Lithium Ion batteries like to be charged. You should keep them above 10% as often as possible and ideally plugged when ever you can. These types of batteries last longer with a constant charge than with out, the full "Drains" kill Lithium Ion batteries faster and should only be done when you are calibrating the device (on the first charge or two).
The confusion comes from the old rechargeable Nickel Cadmium batteries which lasted longer if you did a full charge and discharge as these had a "memory".
As far as question #2 goes that is personal preference. I have flashed my GNex 6 or so times now and have had no issues when I didn't re-calibrate it.
x942 said:
To answer question #1:
The battery is a Lithium Ion battery. Lithium Ion batteries like to be charged. You should keep them above 10% as often as possible and ideally plugged when ever you can. These types of batteries last longer with a constant charge than with out, the full "Drains" kill Lithium Ion batteries faster and should only be done when you are calibrating the device (on the first charge or two).
The confusion comes from the old rechargeable Nickel Cadmium batteries which lasted longer if you did a full charge and discharge as these had a "memory".
As far as question #2 goes that is personal preference. I have flashed my GNex 6 or so times now and have had no issues when I didn't re-calibrate it.
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so are you saying that its good to keep my phone plugged in while I sleep?
Sent from my Galaxy Nexus using XDA App
bluemoon1221 said:
so are you saying that its good to keep my phone plugged in while I sleep?
Sent from my Galaxy Nexus using XDA App
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Yes. Because of the way it the chemical reaction works it is better to keep it charged (plugged in at night).
x942 said:
Yes. Because of the way it the chemical reaction works it is better to keep it charged (plugged in at night).
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ok thanks for the explanation
Sent from my Galaxy Nexus using XDA App
Li-ion batteries decreases in capacity over time NO MATTER WHAT YOU DO. (even if you don't use it)This is the down side in exchange for easy maintenance and high energy density.
In short, just use it normal, charge it when it gets low and stop worrying about the battery life.
bluemoon1221 said:
what I am asking is if battery life is suppose to be calibrated(?) right after you flash a new rom or kernel.
I asked this because I flash a lot and don't get good battery life. I'm not sure if its my device that is the problem or the constant flashing that causes this.
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I am not so clever with my English so I have not fully understood your 2nd question.
Flashing a new rom involve only the smartphone. Calibrating the battery is changing data stored inside the battery IC's memory.
These are two ''independant'' processes. The only relationship between them is that the some roms allows you to write in the battery memory and some others doesn't
What's average battery life you guys are getting with mod use ( variable term)?
x942 said:
To answer question #1:
The battery is a Lithium Ion battery. Lithium Ion batteries like to be charged. You should keep them above 10% as often as possible and ideally plugged when ever you can. These types of batteries last longer with a constant charge than with out, the full "Drains" kill Lithium Ion batteries faster and should only be done when you are calibrating the device (on the first charge or two).
The confusion comes from the old rechargeable Nickel Cadmium batteries which lasted longer if you did a full charge and discharge as these had a "memory".
As far as question #2 goes that is personal preference. I have flashed my GNex 6 or so times now and have had no issues when I didn't re-calibrate it.
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remember 10% is not 10% displayed charge. 0% is about 25% as manufacturers take into consideration battery technologies when designing them. it is also quite dangerous to charge from 0-20% on a Lion battery as the chemical reaction has to be reactivated. and over charging can cause a fire.
All calibrating does is make the battery indicator more accurate, it doesn't increase the charge, the supplied chargers and phone tech will not allow overcharging, and the phone will not discharge a battery to below 25% as battery discharge below 25% will damage the cells.
if you are interested look into Lion charging in the RC world. we need balancing boards with controllers when charging multiple cells, and we have to put them in fire bag just in case. it will give you a greater understanding of how lion and charging works.
monkeypaws said:
What's average battery life you guys are getting with mod use ( variable term)?
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Mine is pretty bad. I max out at 10 hours I'm trying Apex rom now hoping it will be better. Something tells me I need an extended battery.
7_michel said:
I am not so clever with my English so I have not fully understood your 2nd question.
Flashing a new rom involve only the smartphone. Calibrating the battery is changing data stored inside the battery IC's memory.
These are two ''independant'' processes. The only relationship between them is that the some roms allows you to write in the battery memory and some others doesn't
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Click to collapse
Exactly right. And our nexus does not give us any access to the chip inside the battery, so there is no need to do any type of calibration with this phone. No roms can change this either due to the max17040 fuel gauge chip inside our batteries.
bluemoon1221 said:
what I am asking is if battery life is suppose to be calibrated(?) right after you flash a new rom or kernel.
I asked this because I flash a lot and don't get good battery life. I'm not sure if its my device that is the problem or the constant flashing that causes this.
Sent from my Galaxy Nexus using XDA App
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Click to collapse
You got confused here. You are not calibrating the battery but how the OS interprets the battery data. The battery itself DOESN'T get calibrated. (And you cannot break a battery by flashing ROMs)
There's really nothing much you can do about the capacity of the battery itself as a normal user once it's been made in the factory.
monkeypaws said:
What's average battery life you guys are getting with mod use ( variable term)?
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Click to collapse
my battery seems to be only capable of 2 hours of screen time despite using 3g/wifi, no nfc, no bluetooth, no sync, etc.
but I can still live with it.
Sent from my Galaxy Nexus using XDA App
diablous said:
remember 10% is not 10% displayed charge. 0% is about 25% as manufacturers take into consideration battery technologies when designing them. it is also quite dangerous to charge from 0-20% on a Lion battery as the chemical reaction has to be reactivated. and over charging can cause a fire.
All calibrating does is make the battery indicator more accurate, it doesn't increase the charge, the supplied chargers and phone tech will not allow overcharging, and the phone will not discharge a battery to below 25% as battery discharge below 25% will damage the cells.
if you are interested look into Lion charging in the RC world. we need balancing boards with controllers when charging multiple cells, and we have to put them in fire bag just in case. it will give you a greater understanding of how lion and charging works.
Click to expand...
Click to collapse
Thanks for that! Didn't know it displayed it differently. I only know how the chemical reaction works and such.
NP fella, thing is Lion is new tech and people still see it by the standards of older battery tech so it's taken for granted that 0% is 0%, and 100% is 100%. where this wouldn't be possible as too many issues would crop up. in RC racing we basically learn it inside out, as Battery types are better for different things. Endurance racing needs Ni-Cad as i prefers a sustained drain and will slow the car near the end of the charge, but keep going with reduced acceleration, while Ni-MH batteries are good, as they have better acceleration due to there properties, but suffer from being fine and suddenly suffering poor acceleration, you have no warning like the last lap. While Li-on are brilliant for one and off acceleration like sprints, or twisty tracks, but run at max power right til the end then just stop dead.
Hello.
I was wondering if my battery life is low or not, so I want to know what your battery life is guyz.
My battery would last like 12hs with wifi always on and facebook, some music here and then and youtube. is it a normal consumption ?
There are so many variables that come into play with battery life that is nearly impossible to quantify what sort of battery life someone should be getting. Screen on time, brightness settings, radios used, reception, usage patterns, apps running in the background....tons of things that will be different from person to person. Also, the actual battery itself comes into play with how well it can hold a charge.
As long as you are happy with your battery situation, all is well. If not, perhaps look into what is using your battery. Better Battery Stats can potentially help you narrow down where things on the software end are draining your battery.
cupfulloflol said:
There are so many variables that come into play with battery life that is nearly impossible to quantify what sort of battery life someone should be getting. Screen on time, brightness settings, radios used, reception, usage patterns, apps running in the background....tons of things that will be different from person to person. Also, the actual battery itself comes into play with how well it can hold a charge.
As long as you are happy with your battery situation, all is well. If not, perhaps look into what is using your battery. Better Battery Stats can potentially help you narrow down where things on the software end are draining your battery.
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My battery were like yours... then i tryed greenfy, now it scores 16h with 2h30min screenon time... try it!
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify&hl=it
foued1994 said:
Hello.
I was wondering if my battery life is low or not, so I want to know what your battery life is guyz.
My battery would last like 12hs with wifi always on and facebook, some music here and then and youtube. is it a normal consumption ?
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Click to collapse
If youre not happy you can undervolt to get amazing battery life..
Sent from my Galaxy Nexus using XDA Premium HD app
That's about what I use to get.
I went out and bought a spare battery. I'm not a fan of extended batteries so I went with a standard battery for about $10.
I also flashed a new kernel that will help on the screen brightness and underclocking.
Sent from my Galaxy Nexus using xda app-developers app
Here's another battery problem thread guys,
Here's my scenario:
My d2att is rooted and has CyanogenMod 10.1.3 Stable running on it. Nothing has been tweaked in terms of bloatware since CyanogenMod is pretty good about not putting crap on their ROM.
I have a stock 2100 mAh battery from Samsung and a 4200 mAh battery from Hyperion Electronics.
I decided to run tests on each battery on two separate nights to see how they ran. I did this using BetterBatteryStats under the same conditions. I charged each battery to 100%, disabled all radios including GPS, sync, wifi, NFC and Mobile Data and left the phone on over night in a span of 8 hours.
Night 1 - Stock Battery: 100% - 40% in a span of 8 hours with BBS reading "mmc_camera" as the main culprit for battery drain.
Night 2 - Hyperion Batter: 100% - 98% in a span of 8 hours with BBS reading "AudioOut_2" as the top partial wakelock.
My questions are 1) what is "mmc_camera" and why was it keeping my phone awake? and 2) why is there such a dramatic difference in battery drain between the two batteries?
Before anyone tells me, "because the second battery is substantially bigger", I know this. It's essentially 2x the amount of the stock battery. However, based on simple ratios, if the battery is 2x larger than stock, why is the Hyperion battery only draining 1/30th as much as the stock? That doesn't make sense.
Someone please let me know what they can tell me about my problem because I'm seriously sick of trying to power manage my smartphone.
I have noticed this as well it makes no sense? I have the same exact problem you are seeing.
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app
waiting for the solution.
I had the same problem, any suggestion?
n_alvarez2007 said:
Here's another battery problem thread guys,
Here's my scenario:
My d2att is rooted and has CyanogenMod 10.1.3 Stable running on it. Nothing has been tweaked in terms of bloatware since CyanogenMod is pretty good about not putting crap on their ROM.
I have a stock 2100 mAh battery from Samsung and a 4200 mAh battery from Hyperion Electronics.
I decided to run tests on each battery on two separate nights to see how they ran. I did this using BetterBatteryStats under the same conditions. I charged each battery to 100%, disabled all radios including GPS, sync, wifi, NFC and Mobile Data and left the phone on over night in a span of 8 hours.
Night 1 - Stock Battery: 100% - 40% in a span of 8 hours with BBS reading "mmc_camera" as the main culprit for battery drain.
Night 2 - Hyperion Batter: 100% - 98% in a span of 8 hours with BBS reading "AudioOut_2" as the top partial wakelock.
My questions are 1) what is "mmc_camera" and why was it keeping my phone awake? and 2) why is there such a dramatic difference in battery drain between the two batteries?
Before anyone tells me, "because the second battery is substantially bigger", I know this. It's essentially 2x the amount of the stock battery. However, based on simple ratios, if the battery is 2x larger than stock, why is the Hyperion battery only draining 1/30th as much as the stock? That doesn't make sense.
Someone please let me know what they can tell me about my problem because I'm seriously sick of trying to power manage my smartphone.
Click to expand...
Click to collapse
n_alvarez2007 said:
Here's another battery problem thread guys,
Here's my scenario:
My d2att is rooted and has CyanogenMod 10.1.3 Stable running on it. Nothing has been tweaked in terms of bloatware since CyanogenMod is pretty good about not putting crap on their ROM.
I have a stock 2100 mAh battery from Samsung and a 4200 mAh battery from Hyperion Electronics.
I decided to run tests on each battery on two separate nights to see how they ran. I did this using BetterBatteryStats under the same conditions. I charged each battery to 100%, disabled all radios including GPS, sync, wifi, NFC and Mobile Data and left the phone on over night in a span of 8 hours.
Night 1 - Stock Battery: 100% - 40% in a span of 8 hours with BBS reading "mmc_camera" as the main culprit for battery drain.
Night 2 - Hyperion Batter: 100% - 98% in a span of 8 hours with BBS reading "AudioOut_2" as the top partial wakelock.
My questions are 1) what is "mmc_camera" and why was it keeping my phone awake? and 2) why is there such a dramatic difference in battery drain between the two batteries?
Before anyone tells me, "because the second battery is substantially bigger", I know this. It's essentially 2x the amount of the stock battery. However, based on simple ratios, if the battery is 2x larger than stock, why is the Hyperion battery only draining 1/30th as much as the stock? That doesn't make sense.
Someone please let me know what they can tell me about my problem because I'm seriously sick of trying to power manage my smartphone.
Click to expand...
Click to collapse
Bump
Try to make sure your front camera sensor is disabled, there's some settings that have the phone look through the camera to see if you are going to wake it up.(something could be in motion settings.)
Or reboot and run the test again. Sometimes the phone glitches out if not rebooted.
Sent from my GT-I9300 using xda app-developers app