Charging from 40%?? - Galaxy Note II Q&A, Help & Troubleshooting

I am only able to use up to 60% of the battery everyday. If i dont charge it overnight, it doesnt last the next day. So the question is, it is okay to charge it up from 40% every night? I used to put my DesireHD overnight on the charher and it didnt give any problems but it was almost out of juice after that much time.
So can i put my note2 for charging from 40% overnight everynight?
Thanks in advance.
Shamps..
Sent from my GT-N7100 using xda app-developers app

Shouldn't cause too many problems but it is important to run the battery completely flat occasionally - this prolongs the life of the battery - charging from 40% all the time will shorten the lifespan of your battery but not immediately - I virtually never charge from fully flat on any of my devices and still have yet to see drastic battery life reduction, besides if the battery does eventually start to fail new ones are cheap and thankfully very easy to replace ;0)

EmergencyMedic said:
Shouldn't cause too many problems but it is important to run the battery completely flat occasionally - this prolongs the life of the battery - charging from 40% all the time will shorten the lifespan of your battery but not immediately - I virtually never charge from fully flat on any of my devices and still have yet to see drastic battery life reduction, besides if the battery does eventually start to fail new ones are cheap and thankfully very easy to replace ;0)
Click to expand...
Click to collapse
Wait a second...did you just said that it's good to drain your battery till completely flat...but then, you have never done this to any of your phones???
Sent from my GT-N7100 using xda premium

I believe it's better to not fully drain the battery before charging as frequent full discharges will shorten the life if Li-Ion batteries.
The only reason to do a full discharge maybe once a month is to calibrate the phone software (not to calibrate the battery per se, as it doesn't work with Li Ion).
So it is better to not let the battery drain fully before you charge it on a daily basis.

DMax99 said:
Wait a second...did you just said that it's good to drain your battery till completely flat...but then, you have never done this to any of your phones???
Sent from my GT-N7100 using xda premium
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Click to collapse
Yeah that's exactly what I said - what's right and what I do don't have to be the same thing - it's like teaching kids - do what I say, not what I do lol.
What I am stating is what battery manufacturers recommend, but I'm also stating that, despite not following the recommendations, I've never had a problem with battery life (in modern phones/gadgets) despite not following the manufacturers recommendations

Hello
chking mails drains my battery on S3
does anyone else have heavy Internet usage ?
& does the Note 2 last them all day
waiting for the Power case for Nite 2

No memory effect on theses batterys charge it when ever
Sent from my GT-N7100 using xda premium

ilordvader said:
Hello
chking mails drains my battery on S3
does anyone else have heavy Internet usage ?
& does the Note 2 last them all day
waiting for the Power case for Nite 2
Click to expand...
Click to collapse
My note 2 lasts all day! I play heavy graphic games, wifi on all day, mails, messaging and much more.
Sent from my GT-N7100 using Tapatalk 2

Related

Battery Life atrocious

Fully charged my LTE Nexus while it was on and then fully charged while it was off. Restarted the phone, haven't done anything with it in 30 mins and it's already down 4% to 96%. What's the deal?!?!?
Someone said in another thread... if you look at your Android System usage in the battery meter, its way too high... sounds like a bug - apparently a custom kernel has fixed this, but I havent rooted yet to test it.
Syn Ack said:
Fully charged my LTE Nexus while it was on and then fully charged while it was off. Restarted the phone, haven't done anything with it in 30 mins and it's already down 4% to 96%. What's the deal?!?!?
Click to expand...
Click to collapse
Check here :
http://forum.xda-developers.com/showthread.php?t=1387243
Sent from my Galaxy Nexus using xda premium
Although I prefer the GN, laptopmag.com found that the Rezound and RAZR have clear advantages when it comes to web surfing time on 4G. GSM GN wasn't too impressive either.
"On the LAPTOP Battery Test (web surfing over 4G on 40-percent brightness), the Galaxy Nexus lasted just 3 hours and 40 minutes. That's a full 3 hours less than the smartphone average (6:38), and about 1:20 less than the unlocked Galaxy Nexus on T-Mobile's network. By comparison, the HTC Rezound lasted 5:03 and the Droid RAZR lasted 4:48. Verizon Nexus owners may want to turn off 4G when they don't really need it or find other ways to conserve juice."
http://www.laptopmag.com/review/smartphones/samsung-galaxy-nexus-verizon-wireless.aspx
After just a couple days mine is doing just fine. I'm at 18 hours right now with 23% left. You have to condition the battery always.
Mine did the same thing as they always do. I only got 4 hours first full charge. After 2 more full cycles it's great!
Storm T said:
After just a couple days mine is doing just fine. I'm at 18 hours right now with 23% left. You have to condition the battery always.
Mine did the same thing as they always do. I only got 4 hours first full charge. After 2 more full cycles it's great!
Click to expand...
Click to collapse
I forget this every time I get a new phone!! It's odd considering I load roms very, very frequently on whatever phone I have at the time and I know I have to wait a couple of battery cycles for battery life to get acceptable with any new rom, but I can't seem to remember it with a new phone!
I'm going to chill and wait and see.
Also, let it die completely and then charge it up 100000% (leave it charging overnight if you can). This is a good way to "train" the battery.
Geezer Squid said:
I forget this every time I get a new phone!! It's odd considering I load roms very, very frequently on whatever phone I have at the time and I know I have to wait a couple of battery cycles for battery life to get acceptable with any new rom, but I can't seem to remember it with a new phone!
I'm going to chill and wait and see.
Click to expand...
Click to collapse
Oh yeah, that will work for you. Mine is up to 20 hours now and 14% left.
20 hours of standby show me screen time 3 hours of screen time it's really bad
Im at 39% with around 2:55 screen on... I am on wifi right now though
Sent from my Galaxy Nexus using XDA App
For me that's bad 3 hours damm
z06mike said:
Also, let it die completely and then charge it up 100000% (leave it charging overnight if you can). This is a good way to "train" the battery.
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Click to collapse
Do NOT do this whatever you do. You should never completely drain a Li-Ion battery except when calibrating it after flashing a rom. Draining li-ion batteries hurts its battery life.
x.Orville.x said:
For me that's bad 3 hours damm
Click to expand...
Click to collapse
How much u get?
Sent from my Galaxy Nexus using XDA App
edgeicator said:
Do NOT do this whatever you do. You should never completely drain a Li-Ion battery except when calibrating it after flashing a rom. Draining li-ion batteries hurts its battery life.
Click to expand...
Click to collapse
Ok, so should he do it or not? You say not to unless you're calibrating.
Well, that's what the other poster is talking about. "training" = calibrating.
It doesn't harm a thing letting them drain all the way to the point of the phone shutting down. I've been doing this for all my phones, new roms, etc. I always end up with excellent battery life.
Storm T said:
It doesn't harm a thing letting them drain all the way to the point of the phone shutting down. I've been doing this for all my phones, new roms, etc. I always end up with excellent battery life.
Click to expand...
Click to collapse
Sorry, but you are wrong.
Deep discharges do "harm" a LiIon battery physically (there is damage done to the membranes in the battery at a molecular level).
You will get about ~500 full (deep) discharges from your battery, but you will get more than double of that if you only discharge to 50% and more if you discharge even less. So the best thing is to charge your LiIon cell as often as possible, with the exception that it's also not healthy for the cell to be at full charge voltage (4.20 V) for a prolonged time either.
Yikes. You people with good battery life are lucky haha. I'm on my 6th charge and I still get around an hour and forty minutes of battery life. I'm at like 50% after an hour or so... and that's with LTE off too...
Sent from my Galaxy Nexus using Tapatalk
This thread is redundant, please continue the conversation in one of the older battery life threads.
http://forum.xda-developers.com/showthread.php?t=1386201

Is this normal battery life for the first day of having the nexus?

I just got my nexus today and was wondering if this was good battery life for the first days use and when it will start getting better?
Sent from my Galaxy Nexus using xda premium
This is the screenshot.
Sent from my Galaxy Nexus using xda premium
Just about. I usually get 7hrs.
Sent from my Galaxy Nexus using XDA App
Thats a drastic drop! Id say about normal as well. Did you have a lot of apps that were re downloading from the time you first activated it. After a few days to a week when your done looking at your phone every 5 secs you'll start to see battery improvement haha.
Tonight will be my 3rd time charging it. WIll it get a lot better tomorrow?
ProTip: Put the phone down every once in a while and enjoy life.
That's normal if ur 4g on
Sent from my Galaxy Nexus using XDA App
It can take 4-5 charge cycles for the battery to really get worked in.
Also, check out the juice defender plus app. Doubled my battery life.
Sent from my Galaxy Nexus using XDA App
Lithium Ion cells do not get better in any way after a few charges.
In fact the capacity goes down a wee tiny little bit with each and every charge, so your first charge was the "best" one.
Stop playing around with the thing for 5 hours non stop and you will get decent runtime.
Best thing to do with a new device is to charge it up fully as soon as you can. Then run it down until you get the low battery warning. Then charge it back up.
Battery life will likely be pretty poor for the first week or so, then it will normalize.
Deep discharging (to 0%) is about the worst thing you can do to a LiIon battery, because it "hurts" it much more than several shallow discharges.
Also, like I said before, battery capacity won't in any way rise or "normalize" over the first week.
Battery life is poor the first days because you use your shiny new device all the time (i.e. more than later). It's like that for all of us.
My battery life sucked the first few days, It got better though. It really only seems to suck it down if it is hunting for a signal constantly.
Sent from my Galaxy Nexus using XDA App
If you are using your phone a laptop replacement and are surfing the web constantly, expect it to die like a laptop.
Sent from my Galaxy Nexus Revolution
You also need to try this manual battery calibration:
http://myhtcdesire.com/tutorials/how-to-improve-your-battery-life-calibration-tutorial
After I did this, saw the battery reading 99% and 98% more often rather than straight to 96% after charged.
Originally, it was suggested by HTC tech support. I did that once every six months or so ... And my battery level is now improved. Screenshots will follow in the next post.
Not bad?
Sync is off btw. And this includes using Maps 2%.
At least with my usage pattern, I am more or less satisfied.
I wish Google fixes the high Android OS Keep awake time!
Sent from my Galaxy Nexus using xda premium
cvbcbcmv said:
You need to remember the only thing relating to battery life is not just the battery, it's software as well, hence calibration. After about a week or so your phone gets a "feel" for your battery and gets more battery stats, so it's more accurate with it's readings. That is a proven fact, you need to think about all things.
Click to expand...
Click to collapse
It is quite easy to gauge a Lithium Ion battery. 4.20 V = full. 3.60 V = empty. Your phone can read the battery precise to 0.001 V. The curve isn't linear, but it's well known what voltage relates to the exact capacity left in the battery.
There's really no room to "feel" anything there, just simple math.
Smokeey said:
ProTip: Put the phone down every once in a while and enjoy life.
Click to expand...
Click to collapse
+1
I consistently get 15-18 hours of use out of mine with the extended battery.
But to the OP, if your screen is taking up 60% of your battery, it's always on, your battery is gonna die, it happens. Your battery doesn't get "better" with time. It seems that way because you aren't glued to the device 24/7.
Mine was god awful when I first got it but after a week or so it got much, much better.
I have the GSM version though.
60% screen time gawt damn! Did you talk to anyone that day?
falconeight said:
60% screen time gawt damn! Did you talk to anyone that day?
Click to expand...
Click to collapse
Google need to run classes on how to read the battery consumption pages. 61% screen means that the screen used 61% of the total battery used, not that the screen was on 61% of the time.
Sent from my Galaxy Nexus using Tapatalk

First charge

Hey guys! Just gotten my note 2, and gonna drain the battery down soon, should I plug it in and charge for 8 hours straight from zero? Should this be done with the phone off? Or this doesn't matter anymore?
Sent from my GT-N7105 using xda app-developers app
Doesn't matter anymore...
I usually do it. Zedomax recommends it, and it doesn't hurt anything to do so.
Sent from my SAMSUNG-SGH-I747 using xda premium
Is it alright I do it with the power on?
Sent from my GT-N7105 using xda app-developers app
This is not needed anymore.
if the battery takes to long to kill then simply its already calibrated
many people don't know how a none-calibrated battery acts and think "battery life is great but it will get better later!"
if anyone of you happened to have a nokia phone in year 2000ish and still have it around i recommend you to go get a replacement battery for it and see for your self
unless the new battery jumps from 100% down to like 80/70% in no time then take too long to drain from 10% or something like that (in short battery acting weird)
then its already calibrated which is the case in all new phones/batteries
TL;DR
unless the battery is acting weird and not taking too long to kill then you dont need to do that
Hell Guardian said:
This is not needed anymore.
if the battery takes to long to kill then simply its already calibrated
many people don't know how a none-calibrated battery acts and think "battery life is great but it will get better later!"
if anyone of you happened to have a nokia phone in year 2000ish and still have it around i recommend you to go get a replacement battery for it and see for your self
unless the new battery jumps from 100% down to like 80/70% in no time then take too long to drain from 10% or something like that (in short battery acting weird)
then its already calibrated which is the case in all new phones/batteries
TL;DR
unless the battery is acting weird and not taking too long to kill then you dont need to do that
Click to expand...
Click to collapse
Thanks a lot I got my retail set from a carrier, so glad to have joined the note 2 community coming from the s3 :X so I just charge it up to full as per normal yes?
Sent from my GT-N7105 using xda app-developers app
This charging a long time first usage is also an old thing from the old nicd and nimh batteries..
in fact li-po and li-ion wont even charge after they are done, overcharging them means they explode/burn or get damaged.
there are built in safety features to prevent that.
and pulling it down to 0% means nothing since modern nimh, li-po, li-ion batteries don't got the memory effect.
actually going down to 0% would only test if the low voltage cutoff works as it should or if you damage your battery.
no need for that!
Frostyeo said:
Hey guys! Just gotten my note 2, and gonna drain the battery down soon, should I plug it in and charge for 8 hours straight from zero? Should this be done with the phone off? Or this doesn't matter anymore?
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
Batteries that comes with the latestmpgones these day do not need to be charged for 8 hours!
Just charge it till its full and continue to enjoy it!
You can preserve the life of you battery by not fully charging it and you can damage it by draining completely. I've no source for this information.
Sent from my GT-I9100 using xda app-developers app

[Q] How to properly charge Galaxy Note 2?

How to properly charge Galaxy Note 2?
Do you let it charge overnight no matter what the battery percentage is? Do you let it go down to 40%-50% and then charge it? Maybe 10%-15% and then charge it? Can you somehow damage the battery if you leave it on the charger longer than you should to?
Thanks in advance guys!
BoBBBBBBBO said:
How to properly charge Galaxy Note 2?
Do you let it charge overnight no matter what the battery percentage is? Do you let it go down to 40%-50% and then charge it? Maybe 10%-15% and then charge it? Can you somehow damage the battery if you leave it on the charger longer than you should to?
Thanks in advance guys!
Click to expand...
Click to collapse
When the phone alerts you to charge .. thats the right time.. and dont charge it overnight the battery will be damaged!!! Im only charging my phone when it hit less than 20%..
Sent from Godfather Gt-N7100
A TRIANGLE AWAY will make your WARRANTY stay
Hit thanks if you love your phone =)
gabamoner said:
and dont charge it overnight the battery will be damaged!!!
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Click to collapse
Is this really true?
Laynee1 said:
Is this really true?
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Click to collapse
I keep reading it, but they never provide any proof or explanation why. Im prettt sure the phone is smart enough to turn off the charging when it hits full.
Tons of battery bs gets spewed like gospel.
-----
I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html
BoBBBBBBBO said:
How to properly charge Galaxy Note 2?
Do you let it charge overnight no matter what the battery percentage is? Do you let it go down to 40%-50% and then charge it? Maybe 10%-15% and then charge it? Can you somehow damage the battery if you leave it on the charger longer than you should to?
Thanks in advance guys!
Click to expand...
Click to collapse
Google is your friend here. As a rule you should try to keep your device between 25% and 70% charge to get a long life out of the battery.
Sent from my GT-P6800 using Tapatalk 2
Thanks all! And how long should I charge it?
I've always charged all my phones overnight regardless of percentage and never noticed any change of decrease in battery performance.
And no the battery will not be damaged from charging overnight
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kylec said:
I've always charged all my phones overnight regardless of percentage and never noticed any change of decrease in battery performance.
And no the battery will not be damaged from charging overnight
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Same here. I think is a myth that batteries get damaged if charging overnight, at least these days that smartphones is actually "smart" and stops the charging automatically when the battery is full.
kylec said:
I've always charged all my phones overnight regardless of percentage and never noticed any change of decrease in battery performance.
And no the battery will not be damaged from charging overnight
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
I've always charged my iPhone 4 overnight and it had the best battery, never damaged.
How to charge:
Plug in phone whenever you want.
Charge multiple times at whatever power levels.
Unplug whenever you want.
Enjoy life.
My batteries last a year using my patented "I don't give a F" method, so it's not worth stressing over "OMG I AM CHARGING ABOVE/BELOW X PERCENTAGE!!!!!111ONEONE" Replacement batteries are cheap and easy to come by, a year is a reasonable lifespan and not stressing over it is priceless.
However, if you feel the need to freak right the heck out over your battery, just do it over there in the corner where I can't see/hear you.
BoBBBBBBBO said:
Thanks all! And how long should I charge it?
Click to expand...
Click to collapse
kylec said:
I've always charged all my phones overnight regardless of percentage and never noticed any change of decrease in battery performance.
And no the battery will not be damaged from charging overnight
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
This advice is for battery lifetime, not battery performance. Quote from wikipedia:
A Standard (Cobalt) Li-ion cell that is full most of the time at 25 °C (77 °F) irreversibly loses approximately 20% capacity per year.[citation needed] Poor ventilation may increase temperatures, further shortening battery life. Loss rates vary by temperature: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F).
When stored at 40%–60% charge level, the capacity loss is reduced to 2%, 4%, and 15%, respectively.[citation needed] In contrast, the calendar life of LiFePO4 cells is not affected by being kept at a high state of charge.[47]
Click to expand...
Click to collapse
norsepriest said:
This advice is for battery lifetime, not battery performance. Quote from wikipedia:
Click to expand...
Click to collapse
Well it wouldn't exactly be full most of the time now would it
I won't deny that the maintaining a charge between 40-60% may prolong battery lifetime but the benefit of having A full battery at the beginning of everyday easily outweighs the "potential" loss of 20% battery capacity after a year. Also the hassle of maintaining a battery percentage between those limits is simply not worth it.
A new battery goes for as little as $6 here in Australia. IF there is any noticeable decrease in battery life (eg. From a loss of max capacity) then a new battery is cost basically nothing.
I charge all my devices over night if the percentage is lower than 85% and all of them still last just as long as the day I got them.
Sent from my GT-N7100 using xda premium
How to charge: plug charger into wall, attach to phone. Done.
Sent from my GT-N7100 using xda app-developers app
sleebus.jones said:
How to charge:
Plug in phone whenever you want.
Charge multiple times at whatever power levels.
Unplug whenever you want.
Enjoy life.
My batteries last a year using my patented "I don't give a F" method, so it's not worth stressing over "OMG I AM CHARGING ABOVE/BELOW X PERCENTAGE!!!!!111ONEONE" Replacement batteries are cheap and easy to come by, a year is a reasonable lifespan and not stressing over it is priceless.
However, if you feel the need to freak right the heck out over your battery, just do it over there in the corner where I can't see/hear you.
Click to expand...
Click to collapse
Exactly.
I mean seriously, why on earth people think too much about charging, when to charge and all, if my battery will be damaged or not, this isn't a phone of 1995! And there is no harm done if you charge overnight.
I've used all my phones like this and never had a problem with battery, not the slightest, however I don't use any phone for more than 18 months.
Swyped from my GT-N7100
But I'm many devices the battery is not removable...
Sent from my GT-P6800 using Tapatalk 2
If overcharging does not destroy your battery and its only a myth.. then why is it included in the USER MANUAL??
For now you will never notice it.. but as time goes by you will feel a slight change in battery usage..but by that time I think you have a new phone.. so dont worry about it..
Sent from Godfather Gt-N7100
A TRIANGLE AWAY will make your WARRANTY stay
Hit thanks if you love your phone =)
gabamoner said:
If overcharging does not destroy your battery and its only a myth.. then why is it included in the USER MANUAL??
For now you will never notice it.. but as time goes by you will feel a slight change in battery usage..but by that time I think you have a new phone.. so dont worry about it..
Sent from Godfather Gt-N7100
A TRIANGLE AWAY will make your WARRANTY stay
Hit thanks if you love your phone =)
Click to expand...
Click to collapse
Lol but it also says in most manuals that you should charge for 6 -8 hours prior to using the device even though it's unnecessary.
I think its only really there to cover themselves for as many situations as possible
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---------- Post added at 07:54 PM ---------- Previous post was at 07:44 PM ----------
norsepriest said:
But I'm many devices the battery is not removable...
Sent from my GT-P6800 using Tapatalk 2
Click to expand...
Click to collapse
Same thing. By the time there is any noticeable impact on the battery most users will have a new phone.
My X10 is about 3 years old now and used by my brother. I charged it every night (sometimes even during the day as well) regardless of percentage and to this day the screen time and overall time are still almost the same as the first day. Definitely no more than a 10% decrease
Sent from my GT-N7100 using xda premium
rub feet on carpet while holding phone for 3-4hrs.
I've never noticed a difference in by charging over night. I've noticed a difference when using different chargers though.
Phone beeps I plug it in, when it shows charged I unplug, not exactly difficult

Is it possible to recover the battery health after poor charging habits?

Hello folks,
For several months I lent my nexus 7 to my family, who don't have the slightest clue regarding battery health maintaining techniques.
So now when I obtained my tablet back, the battery life is less than stellar.
I get something like 2 days battery with 5 hours of screen on time (nothing abysmal of course) and I wanted to know if there are steps you can take to recover the battery potential.
Personally I take such steps as avoiding extreme heat or cold conditions, fully charging when battery drops to 20% and other similar tactics.
I am currently running CleanRom with Glitch kernel.
Wondering if it's possible to somewhat recondition the battery?
mediumsteak said:
Hello folks,
For several months I lent my nexus 7 to my family, who don't have the slightest clue regarding battery health maintaining techniques.
So now when I obtained my tablet back, the battery life is less than stellar.
I get something like 2 days battery with 5 hours of screen on time (nothing abysmal of course) and I wanted to know if there are steps you can take to recover the battery potential.
Personally I take such steps as avoiding extreme heat or cold conditions, fully charging when battery drops to 20% and other similar tactics.
I am currently running CleanRom with Glitch kernel.
Wondering if it's possible to somewhat recondition the battery?
Click to expand...
Click to collapse
I do not believe modern Li-Ion batteries retain any type of battery "memory." Meaning, like on older nickel-cad batteries, if you did not cycle the battery properly they would lose ability to maintain charge.
So, to answer your question, no. I do not believe you can gain any battery health back via charging cycles.
Try calibrating the battery using an app(requires root),also let the tablet fully discharge until it powers off and then charge it to 100%.
That's what I can think of. Hope it helps.
Sent from my Nexus 7 using XDA Premium 4 mobile app
JustROLLIN said:
I do not believe modern Li-Ion batteries retain any type of battery "memory." Meaning, like on older nickel-cad batteries, if you did not cycle the battery properly they would lose ability to maintain charge.
So, to answer your question, no. I do not believe you can gain any battery health back via charging cycles.
Click to expand...
Click to collapse
ngyurov said:
Try calibrating the battery using an app(requires root),also let the tablet fully discharge until it powers off and then charge it to 100%.
That's what I can think of. Hope it helps.
Sent from my Nexus 7 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
THank you

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