And I don't even view anything in 3D, on leedroid, and music and stuff drains the battery quick
Normal?
People often get confused by battery use percentages... It took me a while too, but maybe this can help...
Say you're sitting at 90% left of your battery... that means 10% was drained. Looking at battery use only refers to that 10%, not the whole 100%.
So... if the screen reads 74% and your battery is sitting at 90%, what it is telling you is 74% OF the 10% used was from the screen.
And no matter what, any phone or tablet's screen is going to use the majority of the battery unless it's e-ink (even then it's a good possibility). I wouldn't stress to much about it. You can reduce this by using autobrightness or lowering the brightness than it is.
If you're frustrated with the battery in general, turn off best wifi performance and turn off always on data.
Also, leedroid has a terrible battery life.
Related
Ever since I rooted my fiances and my phone his battery life is so much better then mine.
Mine right now is at 92% and has 17hrs 30mins
His is at 88% and has 24hrs 48mins.
Is there any way that I can improve mine without having to buy a new battery?
We are both using kaos v39.
Thank you for any help.
Sent from my FroyoEris using Tapatalk
Have you tried calibrating the battery?
Look here for details: http://forum.xda-developers.com/showthread.php?t=816618
labnjab said:
Ever since I rooted my fiances and my phone his battery life is so much better then mine.
Mine right now is at 92% and has 17hrs 30mins
His is at 88% and has 24hrs 48mins.
Is there any way that I can improve mine without having to buy a new battery?
We are both using kaos v39.
Thank you for any help.
Sent from my FroyoEris using Tapatalk
Click to expand...
Click to collapse
The battery % also isn't necessary accurate.
The phone uses a calculation of voltage (as closely as it can), temperature, and activity, to determine the %. Largely, the figure is just based on voltage.
Sometimes, when your phone is charging, it can say 83%, but be at a solid 4200mV (4.2 volts). It's probably not going to charge any further. If you power the phone off, the light will probably turn green (showing you that it's charged). Then if you boot it back up, the battery % might read 100%.
Is it 83%? Is it 100%? Clearly, in the 2 minutes it took you to turn your phone off and on, it didn't gain 17% battery.
The difference between 88% and 92% could be temperature, voltage of the particular battery at the moment, who just used their phone more in the past 2 minutes before checking, and (due to all the variables) practically 'dumb luck'.
What you really will see is if you let them go for a very very long time (until they get to 0% and auto-shut off), you'll find that whoever had their screen on more often (maybe whoever does more texting), or whoever has more 3g internet doing things in the background (if one of you has an email app that checks email every 10+ minutes, keeping the phone awake, and moving data), or whoever works in a workplace with worse reception (that will eat battery very quickly, as the phone uses battery to get 'louder' so that the cell phone tower can 'see' it), will have their phone hit 0% more quickly.
The difference between 88% and 92% may actually be nothing. It's just your phone's 'guess' at how much battery is left. His phone's 'guess' is different, because the variables going into the calculation are totally different for a handful of minor reasons.
I wouldn't sweat it.
If yours hits 10% when his is still at 40 or 50%, with similar usage, yeah, that's something to pay attention to.
But the battery % isn't THAT accurate, to even sweat 4%.
I promise.
labnjab said:
Ever since I rooted my fiances and my phone his battery life is so much better then mine.
Mine right now is at 92% and has 17hrs 30mins
His is at 88% and has 24hrs 48mins.
Is there any way that I can improve mine without having to buy a new battery?
We are both using kaos v39.
Thank you for any help.
Sent from my FroyoEris using Tapatalk
Click to expand...
Click to collapse
Alot of widgets can also change your battery life as well. Especially things like Facebook, location based weather, latitude, etc. Ones that are always updating and using data or gps.
pkopalek said:
The battery % also isn't necessary accurate.
The phone uses a calculation of voltage (as closely as it can), temperature, and activity, to determine the %. Largely, the figure is just based on voltage.
Sometimes, when your phone is charging, it can say 83%, but be at a solid 4200mV (4.2 volts). It's probably not going to charge any further. If you power the phone off, the light will probably turn green (showing you that it's charged). Then if you boot it back up, the battery % might read 100%.
Is it 83%? Is it 100%? Clearly, in the 2 minutes it took you to turn your phone off and on, it didn't gain 17% battery.
The difference between 88% and 92% could be temperature, voltage of the particular battery at the moment, who just used their phone more in the past 2 minutes before checking, and (due to all the variables) practically 'dumb luck'.
What you really will see is if you let them go for a very very long time (until they get to 0% and auto-shut off), you'll find that whoever had their screen on more often (maybe whoever does more texting), or whoever has more 3g internet doing things in the background (if one of you has an email app that checks email every 10+ minutes, keeping the phone awake, and moving data), or whoever works in a workplace with worse reception (that will eat battery very quickly, as the phone uses battery to get 'louder' so that the cell phone tower can 'see' it), will have their phone hit 0% more quickly.
The difference between 88% and 92% may actually be nothing. It's just your phone's 'guess' at how much battery is left. His phone's 'guess' is different, because the variables going into the calculation are totally different for a handful of minor reasons.
I wouldn't sweat it.
If yours hits 10% when his is still at 40 or 50%, with similar usage, yeah, that's something to pay attention to.
But the battery % isn't THAT accurate, to even sweat 4%.
I promise.
Click to expand...
Click to collapse
Thank you that makes me feel a lot better. I was starting to think something was wrong with my phone but your explanation tells me that nothing is wrong. =) Thank you for taking the time and patience to explain it to me. I didnt realize how little it could take to eat the battery down.
couple weeks ago, i pulled my battery out when it was at 81% started it back right away and it was 45%, did it again today, it went from 71% down to 29%, my battery reading is tripping, I noticed. MY BATTERY IS HORRID, i lose 1% power per min on the lowest screen brightness display setting, could this have anything to do with this?
side note:
using my battery. battery stats says that my screen is causing 99% drainage.
my buddy battery: my screen is 80% drainage.
bad battery??? it still drains really quick with my buddy's battery, but DOES perform better. but not by much...
another thing, lol..... charging differs. sometimes it can charge like 10% every 10 minutes, and sometimes 30min for 10%.....its just weird. and my phone doesn't last me longer than 10 hours full charge, minimal use.
You may want to look at your battery health under the battery information menu.
Also to better understand and provide support we need to knock out a few things.
What is your current set up? ( rom,kernel, etc)
Have you done a battery calibration at all?
Have you run things like cpu spy to see what apps could be at fault?
All of this can give the community a better picture of what may be going on
Also I pull my battery alot because of testing and sleeps of death and I see very good battery life still. Atm 15 hours @ 72% and I am far from conservative.
SF.UKB.CR.
kernel is the community TSM, battery still was wierd in stock rom, sc 2.9.2, and others.
battery health is good according to spare parts at 3850mv.
currently charging its been at 16% for 10 mins.....
gkirby11 said:
You may want to look at your battery health under the battery information menu.
Also to better understand and provide support we need to knock out a few things.
What is your current set up? ( rom,kernel, etc)
Have you done a battery calibration at all?
Have you run things like cpu spy to see what apps could be at fault?
All of this can give the community a better picture of what may be going on
Also I pull my battery alot because of testing and sleeps of death and I see very good battery life still. Atm 15 hours @ 72% and I am far from conservative.
SF.UKB.CR.
Click to expand...
Click to collapse
Just FYI, you don't have to do a battery pull when you get SOD. Just hold the volume up and power buttons until you see the samsung logo, then let go. This is a hard reboot of your phone. That will save you battery a little bit as you won't be pulling it as much.
Does this look normal to you?
Btw, everyone says that it take forever to charge, but how long exactly? It takes about 3 hours to charge my phone from 50% to 100%. Is it too short, or too long?
I use minimum brightness and running Unnamed 2.1.0
Where did your battery defect to? Those fricken commies.
Overall numbers don't really say a lot. You need to look at what might be causing excessive drain. Do a search for "better battery stats" here on XDA. It's essentally the pay version in the market. That will well you any "offending" programs that might be using up excessive battery time. 22 hrs on a single charge fricken awesome and you show more battery to go.
Yes it takes quite a long time to charge the battery. 3hrs from 50% might be a little long but not that far outside the posted norms. If you're connected to the computer via USB, it will take significantly longer than being plugged into the wall.
Use BBS to hunt wakelocks - you've got some unusually long awake times.
However, 54% drain in 22h with 1h37m of screen on time is not TOO bad.
Read through my known battery drainers thread in General...
Entropy512 said:
Use BBS to hunt wakelocks - you've got some unusually long awake times.
However, 54% drain in 22h with 1h37m of screen on time is not TOO bad.
Read through my known battery drainers thread in General...
Click to expand...
Click to collapse
I am using Unnamed 2.1, I believe it has BLN support. Is it a battery drainer? If so, how do I disable it? i dont see any BLN setting in Setting.
I installed BBS. Here are the screenshots.
Unless you enable BLN using the BLN Control app, it should not drain your battery.
71% deep sleep seems pretty poor, especially 9 hours of awake time with only 1h37m of screen on time.
it looks likely that you've got an app(s) gobbling up some of your battery. But i don't think your battery is defective at all. 22hrs and about half your battery left isn't too bad. You could certainly do some things to make it better, but the battery itself most likely isn't defective.
Hello,
I've been wondering if it's possible to recalibrate how the system reads the remaining battery charge. I'm using Rage 2.8 kernel for FXP and battery life is very good (over 30h with moderate HSDPA youtube streaming, browsing etc.), but what bugs me is that it goes from 100% to 80% extremely fast, then it slows down as it reaches 0%, it can hang on 1% for an hour before it finally shuts down.
I'd like it to be somewhat linear (even if the real physical battery discharge cycle is not linear), is it possible?
Cheers!
aidennwitz said:
Hello,
I've been wondering if it's possible to recalibrate how the system reads the remaining battery charge. I'm using Rage 2.8 kernel for FXP and battery life is very good (over 30h with moderate HSDPA youtube streaming, browsing etc.), but what bugs me is that it goes from 100% to 80% extremely fast, then it slows down as it reaches 0%, it can hang on 1% for an hour before it finally shuts down.
I'd like it to be somewhat linear (even if the real physical battery discharge cycle is not linear), is it possible?
Cheers!
Click to expand...
Click to collapse
Depends how you and other apps really use the phone.
I've done idle testing with screen off and no apps, the drain is simply faster at the beginning after charging and later slows down to the point where streaming youtube "eats" less power than idling at 99%. I'm not saying it really does that (because it's impossible), it's just that (I guess) the physical battery discharge curve is like this, but that doesn't really help me at all with estimating how much time I have left.
I may be wrong, but I've tested this twice now (going from 100% to 0%) and it's always faster in the beginning completely regardless of what I'm doing with the phone.
I dont want to **** on the cake but if you care about battery-life you should not use a CM-rom. I used CM-7.2 for 6 months and now switched to a stock-based rom (Spartan). The result is twice the battery-life. CM's battery consumption is horrible especially when the phone is idle. I used to lose 20% during 8h of airplane mode. Now i lose 1-2% without airplane-mode.
Actually, the battery life is just fine for me. I agree, pure CM 7.2.0 drains the battery like there's no tomorrow, but Rage kernel alleviates that by a lot.
The reason I don't use official rom mods is that I like CM a lot, and while battery life could get some more love from the devs it's certainly not that bad, especially with Rage kernel. 30h+ with normal usage, internet, browsing, youtube etc. isn't that bad.
My problem is not that the battery is drained fast, but that the percentage display goes down unevenly regardless of usage. Let's say we compare idle to idle, no airplane mode, no background apps. When the percentage is at 99% it goes down about 5% in an hour (I didn't measure it with a timer, but it's a good estimate), while when the percentage is at 20% it goes down about 1-2% in an hour.
Here s an also weird graph!
Stock Rom .62 rooted.
Check the vertical drops!
h ttp:// img.tapatalk.com/8ded9580-228b-a194.jpg
No problems.Just weird.
Sent from one of my 4 iPads.
Ok, after deleting battery logs after fully charging the phone (although I don't know whether it was this or something else, maybe it just needed three charges) I got a linear discharge curve. Also, now it turns off at 2%.
BTW battery life on CM 7.2.0 - this time (with LAGLESS governor) it got the phone to 59 hours, which I think is really good enough. Rage kernel FTW. Of course, with LAGLESS and stock rom it'd probably reach over 70. Still, I don't need that much, and CM is great.
-- edit --
After another change (switching to 2G when data transmission isn't needed) the phone eats 0.6% battery per hour. Now I really don't need stock.
Hi, I've been having problems recently with my ZTE Blade Spark (Z971). I only have about 3-4 hours of battery life with active use (browsing the web or watching videos), and this is with screen brightness turned to the lowest, airplane mode on (though wifi is on), etc. I've been using this phone for about 2 years, and it was much better before. The battery is supposed to be over 3000 mAh, but according to AccuBattery, my phone is only charging to about a third of this capacity. Also, when I tried to calibrate my battery, I noticed that when I ran down my battery to 0%, and plugged it in, the on screen indicator immediately showed ~30%. However, when I immediately unplugged it and tried to turn the phone on, it wouldn't turn on. Calibration didn't really work either. Is there anything I can do to fix this?
Two years of use will usually kill 30-50% of the battery capacity.
Accubattery can tell you the estimated capacity on the "Health" tab.
It may be time to change the battery.
But this is a lot worse than 30-50%, according to AccuBattery, im only getting a capacity of about 1000 mAh, which means the battery lost around 2/3rd's of its capacity. Is there anything I can do to fix this, or do I have to replace the battery at this point.