Database Develop

first 25% of battery drops fast?

Ok so this is what i noticed has been happening with my phone...
I wake up in the morning and i unplug my phone from charger at 100% battery life...
after about 1-2 hours of no use (outside of occasional check of time) and no programs running i notice that 25% of life has diminished...
i have turned 3g off and done most of the kaiser tweak settings that help with battery life. for the rest of teh day i can use the phone and battery life runs normally but it seems the first 25 to 30% drops real fast without use
is everyone experiencing this? is it normal?
KP

The problem lies in your first sentence. "I wake up in the morning and unplug my battery." You are charging your battery too much thus killing it's battery life. I only charge my phone in the day while I'm at work. That way I can unhook it when it's fully charge. I would go on ebay and type in OEM battery Kaiser. You can pick one up for 15-30 dollars new.

From what I understand. Leaving your battery in the charger when it is fully charged should not damage the battery as long as its not there for an excessive amount of time but i might be wrong. Either way i have no way of charging the phone during the day as im on the go most of the time so this would mean even if i get a new battery it wont matter because it wile eventually do the same as i have only used this phone for about 3 or 4 months now. any other possibilities or solutions?
or should i just take it as it is and just buy a new battery maybe a bigger seido?

I thought Lithium ion batteries have overcharge protection. I charge mine overnight which I am sure a lot of others do also with no negative effects.

netboy said:
I thought Lithium ion batteries have overcharge protection. I charge mine overnight which I am sure a lot of others do also with no negative effects.
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I do... Maybe I shouldn't?

I would hope it has Overcharge Protection!!!
With NiCad Batteries if you overcharged them you would kill the life of the batteries.
And while all batteries do this LiIon are least tolerant. If you overcharge a LiIon battery, that is without Overcharge protection, the LiIon Battery with BURST INTO FLAMES! Thus the problem with the Sony Batteries that caused all those Laptop battery recalls.

gqstatus0685 said:
You are charging your battery too much thus killing it's battery life.
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Thats total BS with lithium batteries.
To the OP: Try running down your battery completely once, until the phone switches off by itself, then recharge fully. If you never do it and always recharge before the battery is empty the battery's power meter can lose its calibration over time and display weird things.
If it doesn't help, and you can notice a drop in overall life time you might need a new battery.

I have the exact same "problem" with my Tytn II.
Is slows down evenly though. (So the first 5 % of battery vanishes in minutes basically while the last 5 % can last for an hour, when it's half full % will last somehwere in between these two extremes).
Personally I've just interpreted this as poor measuring done by the hardware and/or software. (Ie I don't think the battery performs better the less full it gets as the meter in Windows would have me think)

kilrah said:
Thats total BS with lithium batteries.
To the OP: Try running down your battery completely once, until the phone switches off by itself, then recharge fully. If you never do it and always recharge before the battery is empty the battery's power meter can lose its calibration over time and display weird things.
If it doesn't help, and you can notice a drop in overall life time you might need a new battery.[/QUOTE
thanks ill try it out as soon as i get a chance...
kp
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may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol

duke0102 said:
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
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Hmm...I don't see how turning my phone off to charge would increase the charging rate dramatically. My phone in standby mode uses 1% every 2 hours.

depends highly on roms and especially on radios.
with a crappy rom, battery could drop as fast as 10% per hour.
with a decent rom, battery drops in standby mode at a rate about 2% per hour.

duke0102 said:
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
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Click to collapse
If the phone is on but on standby that barely changes a thing. If it's on, with display illuminated then yes it might take you an extra 20 minutes to charge.. no big deal either.

*UPDATE*
ok so i drained my battery last night completely(turned on navizon, tt7, and skyfire) which took me about at most 2 hours.
Put it in for a charge
woke up at 9 and checked to see and it was 100%
I have push mail set to update every hour and i also run pocket sportscenter autoupdates which updates every 10 to 15 minutes
I used the phone for 5 minutes of calls
5 minutes of web surfing
a few text messages
and the occasional time check
at 6:30 pm battery life was at an amazing 90%
i was thrilled.
i continued to surf the web heavily from 730 to 8
a few more text messages
at 9 battery was at 67%
so i gotta believe that draining the battery helped recalibrate it...
i guess every 2 or 3 months i got to drain it out and give a full charge
thanks for the help guys
really appreciate it

[Q] Battery duration getting low.. Very low.

Hi everybody, i'm a new french member and I have a question on my Galaxy S3 Mini device !
I have for 1 year now and i don't get any problem with it, my battery duration was 30H long !
Until 1 or 2 weak my battery duration is getting low... Now i have a 8H duration... and the last week i have 12H...
I don't install any strange application that consume too much and don't use useless options on android.
I try install an apps for battery, it change nothing. The apps that use the most my battery is the android system with 62% !!!!
Please help me. Do i have to change my battery ?
And sorry my bad english ^^'

Hatomike said:
Hi everybody, i'm a new french member and I have a question on my Galaxy S3 Mini device !
I have for 1 year now and i don't get any problem with it, my battery duration was 30H long !
Until 1 or 2 weak my battery duration is getting low... Now i have a 8H duration... and the last week i have 12H...
I don't install any strange application that consume too much and don't use useless options on android.
I try install an apps for battery, it change nothing. The apps that use the most my battery is the android system with 62% !!!!
Please help me. Do i have to change my battery ?
And sorry my bad english ^^'
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Click to collapse
I've been having the same issue.

i have this phone 1 year now and i had the same problem few days ago...im not a heavy user,so the phone usually lasted for 2 days of normal usage...but few days ago after i charged it, the phone lasted like 8-9 hours and Android OS was eating my battery 68%, keeping my phone awake all the time...
so i left the phone to completely dry up the battery until it shut down itself...then when i connected to the charger even more strange thing happened, the phone recognized that it is charging (as usual), but the screen was kinda blinking green lights all over the screen (there was no battery icon) and the phone started itself (i didnt even touch the power button)....after it started itself i shut it down and left it to charge up....after full charge i powered the phone and it is working normally for now....
so,i dont know if this gonna help you at all, but try leaving your phone to use all the battery until it shuts down itself and recharge it, after full charge power it up and see if it gets back to normal
cheers

funkyboj said:
i have this phone 1 year now and i had the same problem few days ago...im not a heavy user,so the phone usually lasted for 2 days of normal usage...but few days ago after i charged it, the phone lasted like 8-9 hours and Android OS was eating my battery 68%, keeping my phone awake all the time...
so i left the phone to completely dry up the battery until it shut down itself...then when i connected to the charger even more strange thing happened, the phone recognized that it is charging (as usual), but the screen was kinda blinking green lights all over the screen (there was no battery icon) and the phone started itself (i didnt even touch the power button)....after it started itself i shut it down and left it to charge up....after full charge i powered the phone and it is working normally for now....
so,i dont know if this gonna help you at all, but try leaving your phone to use all the battery until it shuts down itself and recharge it, after full charge power it up and see if it gets back to normal
cheers
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Click to collapse
Thank a lot ! I have the same issue. The first time i did it and reboot it my battery duration was... 1H... And when I redo it again it return to normal.. '-'
This very strange... But thanks

I have this exactly same problem. Please what should I do?? How do I know if I need battery replacement?

Inaccurate battery %??

After charging my battery fully to 100%, I unplug it from the charger and without even turning the screen on, the battery drains to 92% within one hour. I check the battery stats and there are maybe only a couple wakes during this time.
Sometimes, the battery shows a certain percentage longer than others. Example, my phone will be on 65% longer than it would be on 60%.
Battery still gives me a solid 2 days usage with about 3+ hours screen on time. The service menu also says that the battery is good.
Is there a way to get the battery reading to show more accurately?
Thanks,

Hope I could Help You
For your battery problem, I guess you could try calibrating it. And also try to install "Greenify" along with "Clean Master or 360 Security" and try to close all running apps before turning off the screen. I also turn on Stamina Mode when the battery is at 100%, in an attempt to further save battery life. And the result has been kinda meh, but well, battery drains about 1% per hour. It lasts about a day and half with light usage. In my case, light usage being, browsing, youtube videos for about 2 hours, listening to music, social networking and taking some pictures
Squatrack Curler said:
After charging my battery fully to 100%, I unplug it from the charger and without even turning the screen on, the battery drains to 92% within one hour. I check the battery stats and there are maybe only a couple wakes during this time.
Sometimes, the battery shows a certain percentage longer than others. Example, my phone will be on 65% longer than it would be on 60%.
Battery still gives me a solid 2 days usage with about 3+ hours screen on time. The service menu also says that the battery is good.
Is there a way to get the battery reading to show more accurately?
Thanks,
Click to expand...
Click to collapse

jeseunpark said:
For your battery problem, I guess you could try calibrating it. And also try to install "Greenify" along with "Clean Master or 360 Security" and try to close all running apps before turning off the screen. I also turn on Stamina Mode when the battery is at 100%, in an attempt to further save battery life. And the result has been kinda meh, but well, battery drains about 1% per hour. It lasts about a day and half with light usage. In my case, light usage being, browsing, youtube videos for about 2 hours, listening to music, social networking and taking some pictures
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Click to collapse
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.

Umm.. IMO, 10-20% is okay. I usually charge the phone when the battery gets around 5%. I read somewhere that charging battery too early can affect the battery's overall standby time (reducing it). It's better not to let the battery reach 0% though.
I had that happen with my Samsung Galaxy Note 2 earlier. I once let the battery dip all the way to 0% many times. After a few charge cycles, I found out that the battery was dead and wouldn't charge at all so I ended up buying a new battery :-/
Umm.. Coming back to our Z1's, could you try putting the phone in stamina mode everytime the phone is kept on standby mode? This boosted my battery life a lot I even put my phone on stamina mode throughout the whole night yesterday to test the battery life again, and when I switched on in the morning, I saw that the battery had dipped by just 2% (standby time of 7 hours). I'm really confused how your battery drops so fast, 100% to 92%.
Could you try calibrating the battery and then putting it in Stamina Mode while on Stanby and tell me the results? I hope I could help :fingers-crossed:
Squatrack Curler said:
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.
Click to expand...
Click to collapse

jeseunpark said:
Umm.. IMO, 10-20% is okay. I usually charge the phone when the battery gets around 5%. I read somewhere that charging battery too early can affect the battery's overall standby time (reducing it). It's better not to let the battery reach 0% though.
I had that happen with my Samsung Galaxy Note 2 earlier. I once let the battery dip all the way to 0% many times. After a few charge cycles, I found out that the battery was dead and wouldn't charge at all so I ended up buying a new battery :-/
Umm.. Coming back to our Z1's, could you try putting the phone in stamina mode everytime the phone is kept on standby mode? This boosted my battery life a lot I even put my phone on stamina mode throughout the whole night yesterday to test the battery life again, and when I switched on in the morning, I saw that the battery had dipped by just 2% (standby time of 7 hours). I'm really confused how your battery drops so fast, 100% to 92%.
Could you try calibrating the battery and then putting it in Stamina Mode while on Stanby and tell me the results? I hope I could help :fingers-crossed:
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Click to collapse
Yeah i could try to calibrate it. Im a little confused on what you do to calibrate the battery (ive read way to many opinions on this). Can you please tell me the steps.

Squatrack Curler said:
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.
Click to expand...
Click to collapse
Squatrack Curler said:
Yeah i could try to calibrate it. Im a little confused on what you do to calibrate the battery (ive read way to many opinions on this). Can you please tell me the steps.
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Click to collapse
I used this to help me - http://forum.xda-developers.com/showthread.php?t=1024867

galaxy tab s 2 screen problem on low charge

Hi i bought a galaxy tab s 2 about 2 weeks ago it's really good device but yeaterday when the battrey goes 1 % the horizantal lines appear on the screen and after 5 secends mt tablet shtdown is it normal on s series to shutdown like this in low battery or it's my tablet problem??

can confirm mine has done this once...will post if I have further issues

Same on both my 810 and wife's 710. Usually happens as it goes below 10%. Lucky you get down to 1%. Received with 5.0.2 + 2 additional updated have not corrected the issue. If it did a normal shutdown that might be ok, it's the way it dies that concerns me.

Same happened to me once when battery was at 2%.

Same here on T715 .. don't like it and freaked out when it first happened .. glad to know it's not only me but still don't like that it dies like that!!

guess the % battery display isnt as accurate as we think,so if it shuts down at a higher % than 0% its because the battery really is below the dangerous values.
If LiPo batteries fall below a certain voltage,there is no coming back .. means the battery is DEAD.
so be glad that the safety shutdown works so well,and dont let your batteries run that low often !!!!!!!
ideal is a charging state of 40-80%,so better to charge it short more often ,instead of a 0% => 100% charge all the time.
This will increase your battery life !!!

justin22 said:
guess the % battery display isnt as accurate as we think,so if it shuts down at a higher % than 0% its because the battery really is below the dangerous values.
If LiPo batteries fall below a certain voltage,there is no coming back .. means the battery is DEAD.
so be glad that the safety shutdown works so well,and dont let your batteries run that low often !!!!!!!
ideal is a charging state of 40-80%,so better to charge it short more often ,instead of a 0% => 100% charge all the time.
This will increase your battery life !!!
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Click to collapse
Agreed. That's what the low battery warning is for.

Mine does it consistantly at 15%. Ridiculous.

I got a 810 and I got the same problem!
I hope it's just a badly calibrated battery and not a bad batteryconnector! http://forums.androidcentral.com/sa...lickering-power-problems-like-tab-12-2-a.html

Phone dies at 26%

So its been 6-7 months since I encountered this problem for the first time.
Earlier I thought that maybe my battery's (orignal) fault, but last month I changed my battery (new, chinese) and I am still facing this problem.
Things I have already tried:
Deleting battery stats (through multiple apps)
Draining phone, recharging 3 times
Flashing rom again (from stock to cm11 to cm12 to current cm13)
Everytime I am about to reach to 26%, the phone dies. When it restarts (after charging a bit) it starts from 5%. It keeps charging at a normal pace until it reaches 73-75% when the charging speed increases drastically (74 to 100 in less than 5mins)
It maybe possible that the new battery I bought has the same defects as the previous one did but chances are slim.
Is there anyway to fix this? Is it possible to measure the real battery capacity? Also, can I change the system files in such a way that I get relative battery percentage (change system default 2300mAh to 1800mAh)?
Thanks!

I am also facing the same issue. I have lg d850 when reaches 30% phone restarts and finally shut down.
Sent from my LG-D850 using XDA-Developers mobile app

Your batteries are bad and don't withstand the required max current - thus the shutdowns. Chinese batteries are bad even when they're new. Original batteries can and do become bad with time - they degrade. Especially if they get hot a lot and/or are brought down to 0% often. Sometimes when battery goes bad, it's blown and you can see it having a "belly". Sometimes not.

TaAaZZ said:
So its been 6-7 months since I encountered this problem for the first time.
Earlier I thought that maybe my battery's (orignal) fault, but last month I changed my battery (new, chinese) and I am still facing this problem.
Things I have already tried:
Deleting battery stats (through multiple apps)
Draining phone, recharging 3 times
Flashing rom again (from stock to cm11 to cm12 to current cm13)
Everytime I am about to reach to 26%, the phone dies. When it restarts (after charging a bit) it starts from 5%. It keeps charging at a normal pace until it reaches 73-75% when the charging speed increases drastically (74 to 100 in less than 5mins)
It maybe possible that the new battery I bought has the same defects as the previous one did but chances are slim.
Is there anyway to fix this? Is it possible to measure the real battery capacity? Also, can I change the system files in such a way that I get relative battery percentage (change system default 2300mAh to 1800mAh)?
Thanks!
Click to expand...
Click to collapse
Trying wiping your phone?

Jack_R1 said:
Your batteries are bad and don't withstand the required max current - thus the shutdowns. Chinese batteries are bad even when they're new. Original batteries can and do become bad with time - they degrade. Especially if they get hot a lot and/or are brought down to 0% often. Sometimes when battery goes bad, it's blown and you can see it having a "belly". Sometimes not.
Click to expand...
Click to collapse
+1
I agree. I got a new battery and my phone would die at around 50%. Tried all sorts of things but no change.
It's definitely the battery. Luckily I could return mine and get a refund

Mine Dies anytime at 15% 20% or even below 25%, So always i connects when i know its below 25%