Database Users

Battery Maximum charge dwindling...

Hi there,
I have been the owner of a brand new M500 for just over 2 weeks now and generally I am very happy with it (although I haven't had chance to play with it too much yet). I am just a little concerned with the max battery charge...
After around 16 hours first charge I generally run it down below 1 hours worth of battery left before I put it on charge, always overnight (so getting around 6-7 hours on charge through power adapter not PC). However since the second charge (which informed me I had nearly 9 hours of battery life to look forward to) it has been steadily dropping by around 20 minute increments so that the last time it dropped just below 7 hours max charge...
So this got me to wondering:
A, is this normal?
B, should I expect this to level out at some point, and how many hours should I expect this to be about?
My usage of the PDA functions aren't great and so I generally get a good 2 days worth of use between charges (1 day if I listen to MP3s during the day).
I have disabled the Beam (IrDA and Bluetooth) and only activate them when I want to use them and I only have the screen on a medium brightness. I try to ensure that I don't leave programs running when I'm not using it... Is there much else I can do to increase battery life or should I be happy with what I am getting, as this is the first time I have had a Smartphone, I don't know what to expect...
Many thanks for any of your comments,
Dan

What are you using to tell you the remaining battery time? The standard battery app tells you remaining % of battery, any program which tells you the remaining time is estimating it based on this reading.
Most programs which do this use averaging techniques to find the best estimation of remaining time based on previous charging and discharging times. The reading on your remaining charge time will eventually level out after a few charges. The charge the battery holds hasn't changed, but the estimated time remaining based on that charge has.

Thanks for the reply, I was hoping that was what was happening...
Thanks for clarifying
Dan

G2 Battery Life Log

G2 Battery Life Thread
Please state if you have a different battery than the 1300mAh it comes with original.
My experience
First day
Received it with 25% ~4pm
Powered off at 0% ~ 6pm
First day (first charge) - wall charge
0 - 100% from 6PM - to 11PM (it took less to charge but i left it a few more hours)
Unplugged at 11PM - played with it till around 1AM
1AM - 7AM - did not charge, it was on standby
7AM - 1:30PM - school / text / web / a few games
1:30 - 2:45PM - a few phone calls / light texting
Battery died at 0% ~ 3:00PM, at around 15-16hours with use, but also no use for about 6hours overnight.
I have installed Advanced Task Killer, whenever I end apps, it ends between 5-15.. average being around 10.. lol
but so far, my first charge from 100%-0%, without overnight use, i got around 15 hours.

drain first or charge first?
nick, you drained your batt before fully charging it.
arent the instructions always telling us how important it is to fully charge it first after you unbox it, before use?

formatting the batt is completely use up all power and then do a full min. 8h charge... best to complete this about 3 times to get full battery capacity

jus use this thing as you want.
this curiosity about battery life...
if the battery is dead, buy a new one. i dont want the phone dominating my life. i use it when and how i want. if battery cant handle it will get replaced.

gnormal said:
nick, you drained your batt before fully charging it.
arent the instructions always telling us how important it is to fully charge it first after you unbox it, before use?
Click to expand...
Click to collapse
That was true for NiCd batteries, which are not in use for many years. You don't need to format your battery anymore.
@nickbunyun: now try it without ATK.

Gee, I do so wish there was a G2 forum for all these G2 threads to go in hehe
http://forum.xda-developers.com/forumdisplay.php?f=750

Well, G2 or Desire Z, it's only the first charge... and whether you've fully discharged it or not at first time use, at the first charge batteries aren't at their maximum performance.
See my first charge experience:
HTC HD2: 1st - 10 hours ..... after some charge/discharge: entire day playing on it for the entire morning and texting for the rest of the day (or two days without playing)
Motorola Milestone: 1st - 6 hours ..... after some charge/discharge: same of HD2.
We'll see the battery performance only when you'll use it and you'll charge/discharge it for at least three times!
Anyway, thanks!

snudel said:
jus use this thing as you want.
this curiosity about battery life...
if the battery is dead, buy a new one. i dont want the phone dominating my life. i use it when and how i want. if battery cant handle it will get replaced.
Click to expand...
Click to collapse
spot on snudel!

snudel said:
jus use this thing as you want.
this curiosity about battery life...
if the battery is dead, buy a new one. i dont want the phone dominating my life. i use it when and how i want. if battery cant handle it will get replaced.
Click to expand...
Click to collapse
I started following this thought process when I got my Motorola Milestone. Sitting it in the dock to charge when not in use and overnight helped but I'm still suffering a little from battery obsession. It's a hard habit to break.

i started it with my htc magic and continued with the desire.
the battery tool it perfectly fine.
at the beginning the battery wouldnt last a day. so i bought a second charger for my work place
so first days i charged it everywhere and after some3-4 days, the battery lasted a full day.
so i started charging over night. no matter how full the battery was.
this works out perfectly well. so i will kepp it.

Galaxy Tab getting better battery life than official specs?

Yes, according to this guy.
http://forum.androidcentral.com/galaxy-tab/44768-bettery-life-results.html
Anyone feel the same way?

its better than i expected, but i doubt its better than sammys tests

Same here it seem way better than I expected but I haven't tested the battery life thoroughly yet but indeed it is very good.

Tomorrow I will be flying back home. I'll be in the air for about 6 hours. I have 2 movies to watch, plus I'll be playing games and will listen to music. I am planning not to charge my tab until I get home. Let's see how it goes. I will update.

Being that my battery use is ~80% display, i should probably consider turning down the brightness. Still, I have been playing with it here and there throught the day (about 7 hours away from the charger now) and the battery level is still 75%
Somebody needs to find a way to mod the autobrightness to have a few options...I like the feature, but it is just a bit too dim for me.

beestee said:
Being that my battery use is ~80% display, i should probably consider turning down the brightness. Still, I have been playing with it here and there throught the day (about 7 hours away from the charger now) and the battery level is still 75%
Somebody needs to find a way to mod the autobrightness to have a few options...I like the feature, but it is just a bit too dim for me.
Click to expand...
Click to collapse
My tab lost 10% battery for one hour medium usage (display on, 30% brightness, reading mainly). Dose it mean I have a battery issue here?

raymentchen said:
My tab lost 10% battery for one hour medium usage (display on, 30% brightness, reading mainly). Dose it mean I have a battery issue here?
Click to expand...
Click to collapse
no. it just depends on what your doing. Wifi signal strength, Cell radio strength. the position of the moon and sun, etc.
BTW, battery life does not decrease linearly. so the numbers in that post are ridiculous.
the discharge curve will look something similar to this in most cases
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"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
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(red line, also note phones cut off the extreme ends of the scale with regards to voltage to promote cell life)
it takes a few days for the battery (more specifically the charging circuitry) to get into a 'groove' when it comes to properly charging the battery and displaying the correct percentage.
if you want to know more about the Batteries in our phones and Tablets look at RCcar and RC plane sites. they use the same batteries as phones do so pretty much everything you learn there will apply here (except our phones don't draw 20+amps! )
http://www.fmadirect.com/lipo_handbook/fma_lipo_handbook_section2.htm

Mine can easily last and day and a half, very impressed with the battery

crazy talk said:
no. it just depends on what your doing. Wifi signal strength, Cell radio strength. the position of the moon and sun, etc.
BTW, battery life does not decrease linearly. so the numbers in that post are ridiculous.
the discharge curve will look something similar to this in most cases
(red line, also note phones cut off the extreme ends of the scale with regards to voltage to promote cell life)
it takes a few days for the battery (more specifically the charging circuitry) to get into a 'groove' when it comes to properly charging the battery and displaying the correct percentage.
if you want to know more about the Batteries in our phones and Tablets look at RCcar and RC plane sites. they use the same batteries as phones do so pretty much everything you learn there will apply here (except our phones don't draw 20+amps! )
http://www.fmadirect.com/lipo_handbook/fma_lipo_handbook_section2.htm
Click to expand...
Click to collapse
Well, I understand you saying here. But 10% (90% to 80%) per hour for reading ebook only is far away from having a good battery at 4000mah. I will give it a few more days to check.

calin75 said:
Tomorrow I will be flying back home. I'll be in the air for about 6 hours. I have 2 movies to watch, plus I'll be playing games and will listen to music. I am planning not to charge my tab until I get home. Let's see how it goes. I will update.
Click to expand...
Click to collapse
Well? How did that go?
Sent from my GT-P1000 using XDA App

raymentchen said:
Well, I understand you saying here. But 10% (90% to 80%) per hour for reading ebook only is far away from having a good battery at 4000mah. I will give it a few more days to check.
Click to expand...
Click to collapse
That's 10 hours at that usage, give or take, and right around what I'm seeing, 10% per hour of actual usage as an ebook, about 2-5% per hour if it's just sitting there connected, and about 15-20%/hour with heavy surfing or game playing.
I expect if I'm careful and keep the connectivity to a bare minimum, I can stretch 12 hours out of it when travelling.
Oh, and everyone...let the battery run down to zero at least once, preferably twice. We're talking total discharge to the point the phone turns itself off, then charge to 100%. This doesn't hurt or help the battery, but it does help make the actual battery monitoring more accurate.

honestly im not too impressed with the battery. i think the standby time sucks too. the iPad doesnt do a lot of things right, but the one thing it seems to do is to last for days. i realize the battery is close to twice as big but i was just use to that. i mean sure i dont use my ipad anymore, but it seems to last forever. anway, when i first got my tab, i managed to drain it in less than 6 hours. that was right out of the box (so it proly wasnt full all the way, but close to it). i was mad when that happened. that was with the brightness on auto and everything turned off except wifi. i could be just expecting too much. i thought conditioning the battery would be good for it. so i let it die all the way and recharged it to full. today, i wouldnt say i used the tablet like i usually would (i am a HEAVY user) and its been less than 12 hours and its already at 21%. this time it was running on 3G and brightness on low (not all the way, but about 30% or so). i dont even set the brightness to the highest cuz its too bright, auto seems to work the best. maybe im just being a tough critic. i mean my nexus only lasts like 5 hours now a days cuz i just use it too much. but im so use to just picking up another battery and moving along.

been having a good battery life after draining the battery to 3% twice then charging it to full again and now it almost last me 2 days better than my old nexus one using it primarily for comic book reading and bluetooth stereo music almost 6hrs. per day and a little gaming of angry birds and a little video and youtube + browsing calling and texting really don't like games too much
@croak
i've read a forum sometime ago that it's bad to drain li-ion to 0% so i think its better to drain it to near zero before charging again as i've read it may damage the cells if you drain it to 0%

how often should we condition the battery? (let it drain near 0 and charge up)

geogetski666 said:
@croak
i've read a forum sometime ago that it's bad to drain li-ion to 0% so i think its better to drain it to near zero before charging again as i've read it may damage the cells if you drain it to 0%
Click to expand...
Click to collapse
Doesn't hurt a lithium ion battery much at all, it's just another charge cycle.
But if you don't go down to the point that the device shuts off at least once, your battery meter can and often will be off by a good bit. There's never any confirmation. When yours was reading 3%, it might have actually been 8%, or it may have been 1% or less, but until you zero it out, you'll never know, and neither will the device. It'll still know when it's at 100%, but any reading below that can be inaccurate.
And keep in mind, this is NOT zero charge, it is not completely drained (the device does the auto-shutdown specifically to AVOID a complete drain).

ayman07 said:
how often should we condition the battery? (let it drain near 0 and charge up)
Click to expand...
Click to collapse
Lithium Ion batteries don't need to be conditioned. But if you want to calibrate the battery meter, you'll need to do it at least once.

Using my Tab as a 3rd device, with my 1st being a HTC Evo and my 2nd being a Motorola i890, i am very impressed with the battery. Even treating my 1st and 2nd devices as red-headed step children and my Tab being in my hands more then them, my battery is yet to go below 50% in a day, the week i have had it. Even with checking 7 different email accounts every 5 min. Also, my Tab is on Wifi a majority of the day, which i would think puts more of a drain on the battery.
i was a little worried when i found out that the battery was not accessable to be able to swap it out at some point of the day. I have (6) batteries for my Evo, 2 red and 4 blacks. Before my tab, if my evo didnt touch a charger during the day, i would use atleast 4 of those batteries during the day. Yea, the size difference between the Evo and Tab battery is different, so i figured i wouldnt need 5 more Tab batteries, but atleast 1 or 2 extra.
My only complaint with regards to Power/Charging is the length of the USB Charge/Data cable. It is super short. i bought a 6ft extention @ Staples for about $5!
The fresh Tab battery is only spoiling us and will get worse as time goes by. I have been looking for other options in the mean time. Here are a few options i found:
ZAGGsparq 4000 mAh $90 @ fommy
Mophie - Juice Pack Powerstation 3600 mAh $99 @ BestBuy
ClearMax External Battery Pack 5000 mAh $39 @ eBay (questionable)
eGear UB-181 1800 mAh $19 @ eBay
eGear S220 (3-way charge: Solar,ac&usb) 2200 mAh $39 @ eBay
Yoobao YB-602 Power Bank (White or Black) 4800mAh $49 @ eBay
Personally, i think i am going with the Yoobao or Mophie or ZAGG.
***EDIT***
the ZAGGsparq is 6000 mAh, NOT 4000 like i stated above...

Yoobao has only 800 mA of output, too few !
Sent from my GT-P1000 using XDA App

The ZAGG has 2 x 1000 mAh. i wonder what the output is @ 1? I doubt very much that it is 1 x 2000 mAh...

Im impress with the batterry , way much better than my Ipad that I just sold ...

[Q] Conclusive way to determine battery degradation

Hi Guys,
Would you please go into Diagnosis, input *#2*#, go to page 2/3 and report your BatteryFullLifeTime here
BatteryFullLifeTime: 24489
Click to expand...
Click to collapse
I am hoping that this may be a definitive way to determine if your battery has passed its useful life... My battery has certainly become overheated a couple of times (to the point where it is almost too hot to touch)... I find this occurs if I simultaneously charge the phone, make a phone call and say play a game all at hte same time...
Bonus points for any one with a brand new or extended life battery who can report what this number says.

illuzn said:
Hi Guys,
Would you please go into Diagnosis, input *#2*#, go to page 2/3 and report your here
I am hoping that this may be a definitive way to determine if your battery has passed its useful life... My battery has certainly become overheated a couple of times (to the point where it is almost too hot to touch)... I find this occurs if I simultaneously charge the phone, make a phone call and say play a game all at hte same time...
Bonus points for any one with a brand new or extended life battery who can report what this number says.
Click to expand...
Click to collapse
Hi
My omnia7
BatteryFullLifeTime24000

My 3 months old Omnia7: BatteryFullLifeTime = 0

dormix said:
My 3 months old Omnia7: BatteryFullLifeTime = 0
Click to expand...
Click to collapse
Is your battery fully charged? If so this may not be a reliable method after all...
Also make sure that you are reading "BatterFullLifeTime" and not "BackupBatteryFullLifeTime" - subtle difference I know.

mine says
BatteryLifeTime = 0
BatteryFullLifeTime = 0
no difference if my phone is on AC adapter, connected via USB to my notebook, or without any cable
cheers

25000 for me

Yes it is full charged and just BatteryFlag = 1, BatteryLifePercent = 100, Reserved1 = 10, BatteryChemistry = 4 and BatteryVoltage =+/-4120 values are different from 0

Now BatteryFullLifeTime is equal to 24489.

Does anyone have an extended battery? Does the extended battery show a longer lifetime?

My 1 month old Omnia 7 is showing bateryfulltime=0 at 36 % charged and the same when it's 100%, so it could be the recharge cycles value who knows

Mine fairly consistently hovers around the 24,000 to 25,000 mark.
Here's what MSDN has to say on the matter BatteryFullLifetime
The reported number of seconds of battery life available when the battery is fully charged, or -1 if the battery life is unknown.
Click to expand...
Click to collapse
I'm not sure if this varies depending on how much you use the phone - but it seems there are at least 2 people with the same values as me.
For what its worth, when I have the phone plugged in on AC or at 100% battery life, it shows 0 - but after I let it drain down a bit (seems to be around 99%) it shows a value between 24,000 to 25,000.
Anyway, need more results to be conclusive.

9 months old, 24000

Battery Full time - 22580
Battery Percent - 31%
It's my secondary battery which I abuse quite a bit About 5 months old.

DatDereX1 said:
9 months old, 24000
Click to expand...
Click to collapse
battery is now at 6% and BatteryFullLifeTime is now 16666
when I posted before it was at 50%

I'd really like to know what everyone is getting for hours from last charge when they hit around 20% battery. I've bought a used Omnia 7 and it's consistently showing about 14 hours by the time I hit 20% battery left. Considering I have an Android HTC Desire HD with 1230mAh battery which lasts longer I'm wondering if this battery has had it and needs replacing. Surely it should last longer considering I'm using it roughly the same, less if you take into account that WinPho has no widgets.

Dyonas said:
I'd really like to know what everyone is getting for hours from last charge when they hit around 20% battery. I've bought a used Omnia 7 and it's consistently showing about 14 hours by the time I hit 20% battery left. Considering I have an Android HTC Desire HD with 1230mAh battery which lasts longer I'm wondering if this battery has had it and needs replacing. Surely it should last longer considering I'm using it roughly the same, less if you take into account that WinPho has no widgets.
Click to expand...
Click to collapse
For what its worth. mine lasts around 1 day with moderate use (i.e. around 1 hour of phone calls and generally checking facebook etc every so often).
What does your batteryfulllifetime report out of interest?

illuzn said:
For what its worth. mine lasts around 1 day with moderate use (i.e. around 1 hour of phone calls and generally checking facebook etc every so often).
What does your batteryfulllifetime report out of interest?
Click to expand...
Click to collapse
It's showing 0 like a few others have reported. I'm waiting for it to finish charging to see if it changes and will post back.

FYI, mine shows 0 when fully charged. After it drains to 99% then it shows between 24000 to 25000

24,489 after a little use. I had WiFi switched on and it said 12,000 which had me going :O until I remembered about WiFi being on lol I don't know what's causing the drain that makes it drop to 20% after only 14 hours or so.. if it was Android I could see which apps had been using most battery, is there anything similar in WinPho ?
OK now it's reading around 67% and saying 12,000~ I think this battery is screwed. I have a Twitter app, Facebore and SkyDrive that sync normally with AccuWeather too. I've sent maybe two texts and zero calls in the time it's been off charge (7 hours). Reading what others have said I'm getting screwed out of battery life even though it's reporting nearly 25k when fully charged. The game is afoot!

Mine purchased end of August, reports batteryfulllifetime=4109, batterylifetime=3000, batterylifepercent=73 with reserved1=10

ICS Upgrade gives you a shorter battery life ??? Read how to get long battery life

Hello friends,
Here finally I upgraded to ICS and honestly I get great ( huge ) battery life..
before also I get upgrade and i get very low battery life because of low calibration of battery without my knowledge..
so I've reverted back to gingerbread 2.3.5 and I'm happy
But who wants older version when the new shiny and superb upgrade of ICS is there anyone ???
So finally I upgraded to ICS and after many searching ,, finding ,,, reading and confusion with doubt The great battery life will be came out from our Loving SGN.. so please do not get disappointed just see below.
Really here I provide you some small and very easy steps by using it you will be definitely be happy with your ICS upgrade ..
you doesn't have to go anywhere and doesn't have to buy anything with your valuable money ..
Really happy
Then read it and get longer and more juice from your battery..
you have to follow some easy steps below
1 . First upgrade your ICS from any source whichever you like ... by kies air or Kies on PC or mobile odin or Via PC ODIN [ please do full charge of battery before any upgrade low battery can make your phone unusable or dead you can get more info on other threads ]
2 . Hope you have upgraded successfully.. then use your phone till your battery goes down to 5 % or below...
[ Caution ] Do not use it till it switched off automatically.
3 . Plug your charger and charge it till morning if you are charging at night or else charge it around 6 to 7 Hours even after full charged .. it's important step.. Do not Ignore it ..
4 . and then use it as per your requirements till battery shows 5% or below
5 . Repeat the step 3
6 . Do it around 8 or more charging cycles.
You get really miracle after 3 or 4 full cycles...
[ caution ] do not overcharge after that i.e just do 6 to 7 hours charging for around 5 - 6 cycles ... after that charge till battery shows full charge i.e around 3 - 4 hours. do not overcharge ..
made it habit of full charge cycles if you are comfortable with it. it really gives great battery life then average battery life.
Hope It'll be helpful to you
Regards

It is better to charge randomly than doing full charges every time on Li-Ion batteries.
Doing full charges every time on Li-Ion will result in battery being end-of-life faster...
Overcharging is also bull****. The phone automatically stops charging the battery when it's fully charged.

_breez_ said:
It is better to charge randomly than doing full charges every time on Li-Ion batteries.
Doing full charges every time on Li-Ion will result in battery being end-of-life faster...
Overcharging is also bull****. The phone automatically stops charging the battery when it's fully charged.
Click to expand...
Click to collapse
As per research the full cycles of Li-on battery gives good hold of charge and also batter life..

in all honesty your post is as useless as mine right now.

According to me, It can be considered as myth . . If the battery needed to be calibrated then it must have been official.. n 2ndly the procedure above is not professional at all... So dnt even think it wud work.... Neways someone can always try and authenticate...:thumbup:
Noted by the BEAST!!

KAASHP said:
As per research the full cycles of Li-on battery gives good hold of charge and also batter life..
Click to expand...
Click to collapse
Doing full charges for calibrating the battery: no problem if you do it once in a while
But you are suggesting people to ALWAYS do full charges on their Li-Ion battery...
8-10 cycles after eachother is too much as well. 2 charges will be enough.

thanks for more info bro
maybe 2 is enough but in many cases it'll be not...

Why do you need to do this just because the OS has changed? And if so then why is it not require on GB?
Sent from my GT-N7000 using xda premium

_breez_ said:
Doing full charges for calibrating the battery: no problem if you do it once in a while
But you are suggesting people to ALWAYS do full charges on their Li-Ion battery...
8-10 cycles after eachother is too much as well. 2 charges will be enough.
Click to expand...
Click to collapse
I totally agree with you!
Also, never let a battery dry for long periods, it will be damaged beyond repair.
Lithium Ion batteries perform better when you keep it as charged as possible.
I call this thread BS too... But I thank the user for the effort

Yeah ICS battery life sucks. I've done what OP said and I still get 4 hours less Battery life than what gingerbread would give me.

tw15tr said:
Why do you need to do this just because the OS has changed? And if so then why is it not require on GB?
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
It's essential because all the states of your battery will be wiped in most of the cases while you upgrade also it's helpful to you if you upgrade your ROM.

inurb said:
yeah ics battery life sucks. I've done what op said and i still get 4 hours less battery life than what gingerbread would give me.
Click to expand...
Click to collapse
ok bro try this procedure and also report us..
In most of cases we have solved this issue with this procedure even i had this issue before now it works like a charm.

I did several full drain and full charge cycles when I upgraded to ICS. Still got the battery drain bug so I think its more luck than anything else if your battery lasts.
In my case I've discovered that power cycling the device after charging is the most reliable approach.
Install CPU Spy, run it after a charge, reset the timers, and then leave your phone in standby (screen off) for 30s or so. Unlock the phone again, and check CPU Spy - if the 'Deep Sleep' cycle is unused then do a phone restart. This has worked EVERY time for both me and a friend who I told about it. I'm getting similar battery performance to when I was running GB!

Battery life depends on a lot of things, ROM version is not the main thing.
This is my setup:
ICS version LQ3
Speedmod 3-3 Kernel
Disabled a lot of Samsung stuff (Readers hub, social hub...)
No automatic sync of twitter, e-mail, etc
I get pretty much zero battery drain when in deep sleep mode.
Of course when using the phone, screen on, Wifi On, autobrightness... battery usage is bigger and you can drain the battery in only 4 hours if you go for it.
Be careful with:
- Live wallpapers, I've seen cases where they remain active all the time
- Apps syncing data on background every few minutes (facebook, twitter, etc)
- Apps uploading a lot of data on background (google+, dropbox..)
- Games that crash and leave the CPU in a high power state until you reboot

Agree
vcespon said:
Battery life depends on a lot of things, ROM version is not the main thing.
This is my setup:
ICS version LQ3
Speedmod 3-3 Kernel
Disabled a lot of Samsung stuff (Readers hub, social hub...)
No automatic sync of twitter, e-mail, etc
I get pretty much zero battery drain when in deep sleep mode.
Of course when using the phone, screen on, Wifi On, autobrightness... battery usage is bigger and you can drain the battery in only 4 hours if you go for it.
Be careful with:
- Live wallpapers, I've seen cases where they remain active all the time
- Apps syncing data on background every few minutes (facebook, twitter, etc)
- Apps uploading a lot of data on background (google+, dropbox..)
- Games that crash and leave the CPU in a high power state until you reboot
Click to expand...
Click to collapse
I am agree with this reply.
If you want to get best battery back-up;
Disable all apps which are working in background, sync n update really eat the phone battery.
I am using my note with active mobile network or wi-fi for a whole day and playing games too without doing this F**KING trick.

The only way battery life gets sucked of Galaxy note is if it doesn't go into deep sleep when not in use.
To all those reporting low battery life: How much battery do you end up losing overnight. ( approx 6-8 hrs)
I typically lose <5 % ( best case scenario has been 1 %)
I had a problem last week and lost 30% overnight and found that it deep go into deep sleep.
and the best solution i found in another thread was to unlock the phone before unplugging from charger
Simply try it: For me normal time between charges is 36 hrs ( battery is near 25% level)

Witches broom battery modification
Battery Lifecycles are connected with the phases of the moon. So you'll get the most out of your battery if you dance at midnight when having full moon spitting five times on your battery.

Many people are of the myth of overcharging n recharging, but its not true wIth lithium batteries, phone will automatically stop charging, if only anything helps its battery calibration,u can do this with a free app called battery calibration, time for the tread to be regarded as close, still useful for noobs
Sent from my GT-N7000 using xda premium

I get great battery life my phone lasts for months on end without dying. I just plug in the charger every night and my battery has not died yet.
Sent from my GT-P6800 using xda premium

sanghaviraj said:
Many people are of the myth of overcharging n recharging, but its not true wIth lithium batteries, phone will automatically stop charging, if only anything helps its battery calibration,u can do this with a free app called battery calibration, time for the tread to be regarded as close, still useful for noobs
Sent from my GT-N7000 using xda premium
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Cheers...use BatteryCalibration
Sent from my GT-N7000