Database Users

[Q] Battery life of SGT P1000

Hi everyone,
How long do you charge your SGT to an ac/dc outlet? And how long does the battery life lasts after its fully charged?
Advance thanks!

For mine, charging time (AC) typically 4 hours (from 5 to 10% left). Usage time is subjective, continuous usage on games or music varies differently. I should said, about 6 hrs plus of continously usage on WIFI & games.

Mine takes a long time to charge, nearly 7-8 hours from 0 to full! Don't know why it's so slow considering I am using the original power cable provided by Samsung!

By far the quickest method to charge the Tab is to first power it down so it is totally switched off.
Now plug in the cable and charge using the supplied power plug.
You will notice a marked difference in time taken to charge fully.

Pat123 said:
Mine takes a long time to charge, nearly 7-8 hours from 0 to full! Don't know why it's so slow considering I am using the original power cable provided by Samsung!
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Click to collapse
This is an important issue so shall we do a systematic comparison? First,we will charge the battery 100% then we will watch a movie at 100% brightness setting for exactly 1hour. Close the movie and check battery %, report here. Game?

According to my usage scheme (except calling), I manage to get 2 days on my GTab when my NS or MT4 needs to change battery once during a day.

Mine takes about 3 1/2 to 4 hours from about 20-30%. I did a lot of reading on lithium ion batteries and what I found is that the more you fully discharge and charge the worse the battery gets, which is the EXACT OPPOSITE of the old style nickel cad batteries.
In order to prolong the life of your SGT battery (which is crucial since we cant removie it) it is recomended that you top off your charge whenever you can. I work part time and am a full time college student so I always have about 4 hours every morning, wether its at work or at home. So once a day I charge my tab, its usually in the 20%-50% range when I charge it.
Just make sure that you do infact have the time to complete the full charge and remember that the last 10% will take the same amount of time as the first 40% due to the fact that li-ion's do the trickle charge at the end.

I charge it over night, every 2 days

For me the longer charge time usually is from 99% to fully charge. That can take up to an hr.

n2s2k2india said:
This is an important issue so shall we do a systematic comparison? First,we will charge the battery 100% then we will watch a movie at 100% brightness setting for exactly 1hour. Close the movie and check battery %, report here. Game?
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Click to collapse
Yep, sounds good! Also, let's keep the phone radios ON i.e. no airplane mode and the movie should be running from External SD card! Will try it out tonight with 3 Idiots movie which was bundled with my Tab

Pat123 said:
Yep, sounds good! Also, let's keep the phone radios ON i.e. no airplane mode and the movie should be running from External SD card! Will try it out tonight with 3 Idiots movie which was bundled with my Tab
Click to expand...
Click to collapse
I watched a full movie. There was a drop of 20%. Normal?

MasterRy88 said:
Mine takes about 3 1/2 to 4 hours from about 20-30%. I did a lot of reading on lithium ion batteries and what I found is that the more you fully discharge and charge the worse the battery gets, which is the EXACT OPPOSITE of the old style nickel cad batteries.
In order to prolong the life of your SGT battery (which is crucial since we cant removie it) it is recomended that you top off your charge whenever you can. I work part time and am a full time college student so I always have about 4 hours every morning, wether its at work or at home. So once a day I charge my tab, its usually in the 20%-50% range when I charge it.
Just make sure that you do infact have the time to complete the full charge and remember that the last 10% will take the same amount of time as the first 40% due to the fact that li-ion's do the trickle charge at the end.
Click to expand...
Click to collapse
Thanks for pointing out.I was following the old ni-cad battery method! So,basically you and Beards above are contradictory?

Differences between both types of batteries.
http://www.ehow.com/about_5449906_lithium-vs-nickel-cadmium-batteries.html
Basically, no harm discharging the batteries if constantly using. However, it is best to charge it before storage (probably for a period of time) and do a full charge when using.

3-4 hours charging time. one time i got it to last for 3 days (79 hours). i have a screencap but i need 3 more posts to put the links here. my normal usage is 2 days.

henrylam said:
Differences between both types of batteries.
http://www.ehow.com/about_5449906_lithium-vs-nickel-cadmium-batteries.html
Basically, no harm discharging the batteries if constantly using. However, it is best to charge it before storage (probably for a period of time) and do a full charge when using.
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Click to collapse
Lithium rechargeable battery dies totally (no longer accept charge) if it's left totally discharged for a few months. In addition, it's better to "condition" (totally let it runs out and charge it immediately till it full after about 1-2 months of use) to keep optimized performance.

n2s2k2india said:
Thanks for pointing out.I was following the old ni-cad battery method! So,basically you and Beards above are contradictory?
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Click to collapse
When I said "power it down" I did not mean to let the Tab run down until it powered off.
What I was saying is to get the quickest charge method it is best to 'switch off' the Tab ('power it down' & 'switch off' = same meaning).
The correct usage for the Tab's battery is when new to first fully charge and then discharge several times. Once you have done this the battery will be optimized.
From now on it is best to keep the battery 'semi-full' and not let it run down completely. I normally let mine run down to around 50% and then recharge to full.
However, after every 30 recharges it is a good idea to 'reprogram' the battery by clearing out any memory loss (I know, I know... they don't suffer memory loss). What you need to do is after every 30 recharges let the battery run completely down and I mean completely until it will switch itself off.
Now with the Tab switched off, recharge. Once the large green battery icon is full leave it in for a further 1hr then disconnect.
If you are not going to use the Tab for a long and lengthy period (heavens knows why though), to optimize the battery never stow away a battery which is in a Full Charge.
Batteries that are not going to be used for a lengthy period should only be charged to around 70% and then left in a cool and dry place.

That was very instructive ,infact I copy pasted it in Color Notes. So, basically, 30 recharges is like once a month, I can put a reminder in the Calender. Thanks and I also pressed the button.

n2s2k2india said:
That was very instructive ,infact I copy pasted it in Color Notes. So, basically, 30 recharges is like once a month, I can put a reminder in the Calender. Thanks and I also pressed the button.
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Click to collapse
No problem...
...... and thanks for the vote. All votes are gratefully received as they are converted into a charitable donation.

Slowest Charging Phone I've Ever Used

I just got the HTC One and the phone itself is great. That being said, I have one pretty large complaint...I've never had a phone that charges slower than this in my life. Is anyone else experiencing brutally slow charging speeds? Probably take 5 minutes for it to charge 1% which means it would take over 8 hours to get to 100%. Is this really possible?

NextNexus said:
I just got the HTC One and the phone itself is great. That being said, I have one pretty large complaint...I've never had a phone that charges slower than this in my life. Is anyone else experiencing brutally slow charging speeds? Probably take 5 minutes for it to charge 1% which means it would take over 8 hours to get to 100%. Is this really possible?
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Bro, before you make assumptions, give the battery a couple cycles to settle itself.

Absolut` said:
Bro, before you make assumptions, give the battery a couple cycles to settle itself.
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I understand the battery needs to be trained but I've purchased hundreds of mobile devices in my life. Never has even an initial charge taken anywhere close to this long.

Is this using the supplied charger? Any processes running in the background that could be keeping the phone awake using power?

NextNexus said:
I understand the battery needs to be trained but I've purchased hundreds of mobile devices in my life. Never has even an initial charge taken anywhere close to this long.
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I know it helped with the old nickel cadmium batteries, but I've been under the impression that conditioning doesn't do anything with today's lithium ion batteries, that they are as good as they will get right out of the box.

Charge time Is a lot less than 8 hours normally. That said, it is still a slow charging phone compared to my previous few phones. However it is not too bad to be a complaint from me. We also have to be aware that the battery is a little bigger than the previous generation of phones, so it would take longer to charge anyway.
Sent from my HTC One using Tapatalk 2

KiraYahiroz said:
Is this using the supplied charger? Any processes running in the background that could be keeping the phone awake using power?
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Yes this is using the supplied charger. Did a little searching online and it seems that there are others who have this issue. It was noted in the Anantech review as well as the following quote from the Droid Life review:
On a related note, the One takes forever to fully charge. I’m not sure why that is, but no matter what charger I seemed to grab when needing some juice, I found myself checking the status of the battery meter far more often than on other phones in my possession.
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http://www.droid-life.com/2013/04/17/htc-one-review/

My phone needs about 4h to completely charge.

From Anandtech, the rationale is that Qualcomms fast charging is disabled in an effort to preserve the integrity of the battery's longevity; since you know, its sealed and has a repairability rating of 0. The Gs4 will probably crank that fast charge up and the user can replace the batteries as often as he deems necessary.

slow charging time seems a pretty fair trade off for a slow discharging time also right?

Riyal said:
slow charging time seems a pretty fair trade off for a slow discharging time also right?
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Isn't that unrelated?

mettleh3d said:
From Anandtech, the rationale is that Qualcomms fast charging is disabled in an effort to preserve the integrity of the battery's longevity; since you know, its sealed and has a repairability rating of 0. The Gs4 will probably crank that fast charge up and the user can replace the batteries as often as he deems necessary.
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Probably this. In the end it is for the users benefit.
I was thinking, even my note 2 don't take more than 3 hours to charge. Heck even my 6200 hyperion battery takes about 5.
Fancy pants Note ||

NextNexus said:
I just got the HTC One and the phone itself is great. That being said, I have one pretty large complaint...I've never had a phone that charges slower than this in my life. Is anyone else experiencing brutally slow charging speeds? Probably take 5 minutes for it to charge 1% which means it would take over 8 hours to get to 100%. Is this really possible?
Click to expand...
Click to collapse
You shouldn't fully discharge. And my battery with the HTC charger does not that much longer than other smartphones but agree the S3 is a little quicker to charge.
Sent from my HTC One using xda premium

From the Anandtech review:
What’s interesting however is that the charge curve gets the One to 85–90 percent under the normal 3 or so hours, it’s that last ten percent that takes forever
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Click to collapse
Maybe they designed it so that the user would be discouraged to fully charge the phone, and thus completing fewer cycles?
If it's just the last ten percent that takes such a long time, I'm not too worried about it. There are few situations during the day that I'd have to charge the phone to 100%, other than an overnight charge.

NextNexus said:
I just got the HTC One and the phone itself is great. That being said, I have one pretty large complaint...I've never had a phone that charges slower than this in my life. Is anyone else experiencing brutally slow charging speeds? Probably take 5 minutes for it to charge 1% which means it would take over 8 hours to get to 100%. Is this really possible?
Click to expand...
Click to collapse
It's a pretty big batter, to start. But you're probably not getting much current to the phone. If you charge from the USB on a computer, you're hardly getting any current to the phone so it's going to charge very slowly.
The faster chargers are 2A chargers. I have a 2A car charger that came with my Nexus One car dock I've been using for a long time and it's the fastest charger I've seen out of all of them. All of my phones (and friends' phones) have charged must faster with that charger.
I have a 1.5A AC charger too. It's still not as fast as my 2A car charger, but I'm also inside at that point, so it doesn't matter. But most chargers I've seen are 1A or less. Those are slow.
aliveon2legs said:
I know it helped with the old nickel cadmium batteries, but I've been under the impression that conditioning doesn't do anything with today's lithium ion batteries, that they are as good as they will get right out of the box.
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Click to collapse
It's not the battery you're conditioning. It's the battery stats on the phone. The phone needs to "get to know" the battery to accurately describe its status.

Charge time should be a tad under 4 hours on AC, so I would say something appears to be wrong. Unless of course you're doing something heavy on battery) gaming/navigation) during charging.

what scm_crash said. pick up a 2A charger if you really need juice fast, otherwise it's probably designed to simply charge overnight for longevity
I always use my nexus 7 charger (2A) when i need juice on the spot.

It's ridiculous that people here think that the HTC one is not reparable ,so HTC designed a phone that can't be open ? What if you break your screen ? So instead of repairing your screen and be charged 180 $€£ for example ,HTC will charge you 599 for a new phone cause the phone is unreparable? That's ridiculous.HTC made the phone,HTC knows how to open the phone ,HTC will put phone back together again period.

atrako1973 said:
It's ridiculous that people here think that the HTC one is not reparable ,so HTC designed a phone that can't be open ? What if you break your screen ? So instead of repairing your screen and be charged 180 $€£ for example ,HTC will charge you 599 for a new phone cause the phone is unreparable? That's ridiculous.HTC made the phone,HTC knows how to open the phone ,HTC will put phone back together again period.
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It is strange that this forum suddenly has a lot of new negative misinformed posts just when the One is being launched in the USA.
Sent from my Nexus 7 using xda premium

actually it's not comparable coz the volume of the battery aren't the same.
you can also check the charger's specs , a 2300mha battery charged by a 1A charger, that's approximately 2.7 hrs.
still, for the first time it took more than half an hour to charge from 99% to 100% and the LED to turn green, that was strange. probably because I deleted the battery stat file for calibration

[Q] Galaxy S4 first charge?

Hi everybody. Probably many peoples asked this question before, but I see a lot of thread about that and they all answer different things. I want to know if it's real that I have to plug my phone once he got 100/100 and I let him discharge at 0 before I plug in to recharge completly.
I want also to know if it's dangerous for the battery to let the phone plugged in all night
Thank you and sorry if you got a lot of topic about that

No and no. This advice refers to nickel hybrid and cadmium batteries which haven't been used in phones for 10years now. Sure you should charge to 100 sometimes as it helps accuracy on the battery indicator but you gain nothing by discharging completel . In fact your phone will show 0 when there's still a little juice left because it's harmful to completely empty lithium batteries.

Alrightt finally a clear answer thank you.
Sent from my SGH-I337M using xda app-developers app

For the past decade, I've taken the phone out of its box and used it.
Mostly theres about 60% in it.
I just use it and go.
If the battery performs adversely, I just buy a new one.
Life is too short to baby'ing batteries.

yup, batteries are dirt cheap.

Take my advice.
Avoid third party crap.
I had the experion or something that was total garbage.
I actually bought two and a dock.
By the end of the second month they were acting weird.
Showing me 5% battery left after a full charge but staying on for 10 hours.
Turning off for no reason.
Stick to OEM.

CorruptedSanity said:
Take my advice.
Avoid third party crap.
I had the experion or something that was total garbage.
I actually bought two and a dock.
By the end of the second month they were acting weird.
Showing me 5% battery left after a full charge but staying on for 10 hours.
Turning off for no reason.
Stick to OEM.
Click to expand...
Click to collapse
Agree with this. Here in the UK it's £40 for the OEM battery and stand/charger - I ended up buying a £4 battery (listed as 2800mAh) and a £13 cradle - the battery is lucky to give me 5 hours on full charge.
As mentioned in here, new battery technology does not need a full discharge - it's better to keep it hovering around 80% if possible (which is impractical of course)
The more "discharged" batteries are the more wear they get when you recharge them I believe - Keeping your battery on the higher end of 50% is preferable for long life, but no matter what they'll run down eventually!

[INFO] Maintain Long-term Battery HEALTH

This is a topic that I don't think has been covered here yet, but is very important. Especially because we cannot replace our batteries.
I'm interested in finding out the best way to prolong the life of our batteries. In other words, I want it to continue holding a charge as close to specs as possible.
I am NOT talking about extending the use we get out of one full charge.
Upon googling, I found these two useful articles:
http://lifehacker.com/5875162
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
From reading those, this is what I gather:
We should not leave our devices plugged in at 100%
Best practice would be to use phone until 50% then charge
Charging to 100% actually causes the battery stress. Charging to 90% or so is better.
I think these few facts are right, since my Thinkpad has a function that stops charging at 90% and doesnt start charging again until below 60% (or whatever values you choose).
What I'm not sure about, is what has HTC done to help prolong battery health?
Does our phone automatically switch to using power straight from the charger at 100% instead of charging and draining the battery simultaneously?
Does any phone do that?
Battery health is likely the reason why our phones charge so slowly. Slow charging = less stress = better battery health.
I've also emailed HTC to see if they have any tips. Their manual contain no tips.
UPDATE:
Okay, so HTC got back to me.. amazingly quick. lol
Its a long email, which I wont paste here, but the one important part is this:
It is better to unplugged your phone from the wall once the battery reach 100% and once the battery indicates that the battery percentage is about 15% you should plug the phone to the wall charger.
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Click to collapse
That is what the guy said, word for word. The rest of the email diverges and talks about general battery saving tips.
So what the HTC rep says seems to fall in line with the three points I got from the articles I read.
Only difference being HTC recommends going all the way down to 15% before charging.. Hmm

Honestly, considering most of us get a new phone after a year or so, we're not going to see any huge hits in battery performance even if we don't follow these "rules". Not to mention I'm REALLY not going to wake up in the middle of the night to unplug my phone just so it doesn't stay at 100% all night. Just charge the battery in whatever way's the most convenient.

Useful post thanks for sharing.
Sent from my Nexus 7 using xda app-developers app

jason27131 said:
Honestly, considering most of us get a new phone after a year or so, we're not going to see any huge hits in battery performance even if we don't follow these "rules". Not to mention I'm REALLY not going to wake up in the middle of the night to unplug my phone just so it doesn't stay at 100% all night. Just charge the battery in whatever way's the most convenient.
Click to expand...
Click to collapse
You might be right. But I bet there are a few people out there who are on 2-year contracts or just don't think they'll give up their HTC One so easily.
I personally love the design of the device and want it to last as long as possible.
I haven't felt this way about a phone since my Xperia X1, which I did eventually give up because I already replaced the housing twice, the mainboard was starting to have issues, and Windows Mobile 6 was just **** lol.
Anyway, under normal use these batteries should be fine for a bit. But unintentional abuse can wear them down faster than you think. At least thats what I get from these articles. And thats been my experience in the past with laptops and cellphones.
I too probably wont be waking up at night to unplug my phone or buying a timer to automatically stop charging my phone. But when I can adhere to these guidelines, I'll try my best to.
------
jonny68, no problem, glad this is useful.

These batteries have electronics to protect them, you wont be doing the battery any damage how you use it other than using your phone a lot and putting a lot of cycles through it. They never let you drain your battery 100% and they never let your charge 100%, it just shows 0-100% for the ease of the consumer. You cannot over charge your phone, if you could there would be a lot of issues out there.
Fact is just use your phone how you use it.

Terrorantula said:
These batteries have electronics to protect them, you wont be doing the battery any damage how you use it other than using your phone a lot and putting a lot of cycles through it. They never let you drain your battery 100% and they never let your charge 100%, it just shows 0-100% for the ease of the consumer. You cannot over charge your phone, if you could there would be a lot of issues out there.
Fact is just use your phone how you use it.
Click to expand...
Click to collapse
But that isnt entirely true.
Yes, our batteries now have mechanisms to stop overcharge and deep discharge.
But these same mechanisms do not provide longevity. Instead, our batteries are geared more towards providing the most use per charge without damage.
It is done this way for obvious reasons. It also means we have a choice about whether or not we want to sacrifice a small bit of convenience or capacity now, for a better battery later in time.
For example, this chart from the second article I linked shows that if you charge only to 90%, your battery can go through double the charge/discharge cycles before dropping to 70% health as compared to charging all the way to 100%

Quote from the article:
"Should I disconnect my laptop from the power grid when not in use?” many ask. Under normal circumstances this should not be necessary because once the lithium-ion battery is full the charger discontinues charge and only engages when the battery voltage drops. Most users do not remove the AC power and I like to believe that this practice is safe.
Like i said, this is all pointless, because 100% of us charge our phones overnight, and 0% of us are willing to wake up 3 hours into our sleep to unplug it at 90% or 100%.

jason27131 said:
Those talks about voltages, not charge level btw.
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http://en.wikipedia.org/wiki/State_of_charge
Reading voltages is one of many methods of determining how much charge is left within a battery. Hence the other column in that table.
You cant just stick a meter on a battery and read how many mAHs are left.
EDIT:
jason27131 said:
Quote from the article:
"Should I disconnect my laptop from the power grid when not in use?” many ask. Under normal circumstances this should not be necessary because once the lithium-ion battery is full the charger discontinues charge and only engages when the battery voltage drops. Most users do not remove the AC power and I like to believe that this practice is safe.
Like i said, this is all pointless, because 100% of us charge our phones overnight, and 0% of us are willing to wake up 3 hours into our sleep to unplug it at 90% or 100%.
Click to expand...
Click to collapse
Right, and that is true for some laptops as some of them do tend to have more sophisticated battery management software/hardware. I mentioned my own Thinkpad and its functions in this OP.
I was curious as to if our phones do the same thing as laptops; disengage the battery at 100% charge and run off AC only. But it does not, as per HTC's reply suggesting phones should be unplugged once at 100%.
And for your other point, I already addressed that. I'm not saying this is essential or that everyone should follow these guidelines. But to some people this does matter, and this post is for them.
As for myself, I'll use yesterday as an example.
I got home from work at around 6:30PM, my phone was down to 30-40%, so I plugged it in.
Before I went to bed, the phone had hit 93%, so I unplugged it and left it there with wifi on.
I wake up, its lost like 3-5%, no big deal.
Around lunch time its dropped to 30% at work, so I plugged it in.
It reached 89% a few minutes ago, so I unplugged it.
So when its convenient for me to do so, I follow these guidelines. If I know I have a long day ahead with no access to a charger, or if I need to charge overnight, then so be it, I'll let it sit at 100% until I have to leave.

Technically speaking this is all correct and a guideline to try to follow. That's all. If it's impossible to do, the phone will be okay. That being said, I am of the belief that if there is a better way to do something, we should at least try to do that. I for one love this device and may never sell it. This is one of those iconic builds that I wonder how much more of its class we will see. Even right now as the music pours out of these front speakers, my love for it grows.
I just wanted to add my 2 cents. And this little tidbit:
Every 100mv less than full charge you apply, will double the lifespan of the battery. So, a rough approximation,
Charge the phone to 100% (4.3v) , discharge to about 15% You'll get roughly 250-500 cycles.
Charge to 90% (4.2v) down to 15, you'll get 500-1000 cycles.
80% (4.1) 1000-2000 cycles.
Cycle count will increase by avoiding deeper discharges...
In a perfect world, you could potentially get 2000-3000 cycles by
1. Charging to 80% or ~ 4.1v
2. Avoiding discharge below 30% or ~ 3.6v
3. Avoid extreme temperature changes and prolonged exposure to temperatures above 45c
Most of this comes from personal experience and much research. Check out battery university if you get some time.
Sent from my HTC One using xda app-developers app

By last do you mean until the battery reaches 70% maximum capacity? Honestly, at 1000 cycles, thats already good enough since thats 3 years worth of charging at roughly 1 cycle a day. I doubt I will keep this phone past 2 years.

m0nz said:
Technically speaking this is all correct and a guideline to try to follow. That's all. If it's impossible to do, the phone will be okay. That being said, I am of the belief that if there is a better way to do something, we should at least try to do that. I for one love this device and may never sell it. This is one of those iconic builds that I wonder how much more of its class we will see. Even right now as the music pours out of these front speakers, my love for it grows.
Click to expand...
Click to collapse
That's exactly how I feel, and the reason why I started the thread :victory:
Your figures fall close to the ones in the articles, so it sounds bout right.
Im curious though, does unplugging/replugging have any effect on the charge/discharge cycle?
For example, if i'm charging my phone but i need it for something, I unplug it, use it, and plug it back in.
That shouldn't have any effect am I right?

You have to define what you mean when you talk about how long a battery "lasts".
We're specifically talking about deterioration in capacity over time.
The battery will "last" for 100,000 cycles in the sense that you will still be able to charge it and it will still be able to power a device on its own for a period of time. The question is how short does that period of time get before you say "this battery isn't useful anymore"
This came up in another thread and the threshold discussed there was 80% of original capacity. Apparently HTC rates the One's battery "lifetime" as 500-700 charge cycles until the battery capacity drops to 80% of its original level. (You also have to define charge cycle: charging from 0-100 or anything that adds up to that, such as charging from 40 to 90 on one day followed by charging from 40 to 90 on another day - counts as one "cycle".)
So this battery could "last" - in the sense that it will still have 80% of its useful capacity - for 3000 cycles if you follow some of the more conservative approaches above.

I don't know how typical my behavior is, my last three phones were bought via two year contracts, each phone was replaced after about one year, when the next-generation model appealed to me.
Don't imagine too many buyers of "flagship" devices keep their phone for over two years.
Sent from my HTC One using xda app-developers app

NxNW said:
You have to define what you mean when you talk about how long a battery "lasts".
We're specifically talking about deterioration in capacity over time.
The battery will "last" for 100,000 cycles in the sense that you will still be able to charge it and it will still be able to power a device on its own for a period of time. The question is how short does that period of time get before you say "this battery isn't useful anymore"
This came up in another thread and the threshold discussed there was 80% of original capacity. Apparently HTC rates the One's battery "lifetime" as 500-700 charge cycles until the battery capacity drops to 80% of its original level. (You also have to define charge cycle: charging from 0-100 or anything that adds up to that, such as charging from 40 to 90 on one day followed by charging from 40 to 90 on another day - counts as one "cycle".)
So this battery could "last" - in the sense that it will still have 80% of its useful capacity - for 3000 cycles if you follow some of the more conservative approaches above.
Click to expand...
Click to collapse
Hm, yea I should update my OP with that info. The articles I referenced seem to define a battery's lifetime as the number of cycles it can go through before hitting 70% of original max capacity.
paul_59 said:
I don't know how typical my behavior is, my last three phones were bought via two year contracts, each phone was replaced after about one year, when the next-generation model appealed to me.
Don't imagine too many buyers of "flagship" devices keep their phone for over two years.
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
Not sure, but in the past I've always seemed to kill my phone's batteries before I replaced the phone itself lol.
If I look back now, that was probably because I always drained to 0% and let my phone stay plugged in at 100%. So basically I was always doing the worst thing possible, short of literally cooking my battery >.>

Nippero said:
Hm, yea I should update my OP with that info. The articles I referenced seem to define a battery's lifetime as the number of cycles it can go through before hitting 70% of original max capacity.
Not sure, but in the past I've always seemed to kill my phone's batteries before I replaced the phone itself lol.
If I look back now, that was probably because I always drained to 0% and let my phone stay plugged in at 100%. So basically I was always doing the worst thing possible, short of literally cooking my battery >.>
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I really don't think that's it. I have done that with EVERY phone i've had, GS3, Nexus, etc. After a year i didn't see any major battery difference, and I plug it in at least once a day, sometimes 2 times.

jason27131 said:
I really don't think that's it. I have done that with EVERY phone i've had, GS3, Nexus, etc. After a year i didn't see any major battery difference, and I plug it in at least once a day, sometimes 2 times.
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The difference may be how much we use our phones then, because with my last phones I typically used my phone quite frequently at work since many websites are blocked. Including open source code sites which actually help me with my job... stupid corporate proxy.
Anyway, I used to leave my G2 and Photon Q plugged in all day at work and at night. So thats 16hrs of being plugged in per day... Probably wasnt good for them.
But hey, if you're right and I'm wrong, I'll be even happier cause that means my battery will be fine no matter what I do lol.
However, battery deterioration isn't a myth, and it does happen. Only question is, how much does it happen.

Nippero said:
The difference may be how much we use our phones then, because with my last phones I typically used my phone quite frequently at work since many websites are blocked. Including open source code sites which actually help me with my job... stupid corporate proxy.
Anyway, I used to leave my G2 and Photon Q plugged in all day at work and at night. So thats 16hrs of being plugged in per day... Probably wasnt good for them.
But hey, if you're right and I'm wrong, I'll be even happier cause that means my battery will be fine no matter what I do lol.
However, battery deterioration isn't a myth, and it does happen. Only question is, how much does it happen.
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Ya i tend to just leave it overnight for about 7 to 8 hours. Sometimes during the day i might plug it in for an hour or so to grab some juice on my s3, something i haven't had to do on my One which is awesome (get about 2 days worth). Battery deterioration definitely does happen, but hey, if I have enough juice at the end of a year to still last me a day, I'm happy

I'm always on a 2 yr contract, no need to really worry about this, but good info none the less.

dont worry op .. ill put my battery in the many " to be taken care off" list.
ill make sure its in the list.
somewhere

If the ONe is anything like the HoX, the charger stops charging at 100%, then lets it drop to 95% before restarting trickle charge. However, the 95% battery state isn't immediately shown on screen, so many people use their phone then see a whole 5% jump downwards almost immediately. I haven't paid much attention to the HO yet, so I can't comment

[Q] best time for recharge battery

anybody know when the time is best to recharge the phone battery?
because i heard that lithium battery should not empty before recharge... and if i empty battery (1%) , this damage the battery

persiansoftware said:
anybody know when the time is best to recharge the phone battery?
because i heard that lithium battery should not empty before recharge... and if i empty battery (1%) , this damage the battery
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about 20% is the best time i read somewhere

jaythenut said:
about 20% is the best time i read somewhere
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if i empty the battery, is damage my battery??

persiansoftware said:
if i empty the battery, is damage my battery??
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If you do it to often it will shorten the battery life

wait till it asks You to charge , I guess that message is for this . Connect your charger ! under 15% Phone tells You itself
Sent from my SM-N9005 using XDA Premium 4 mobile app

persiansoftware said:
anybody know when the time is best to recharge the phone battery?
because i heard that lithium battery should not empty before recharge... and if i empty battery (1%) , this damage the battery
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Above are all incorrect!
Charge at 50% and you can do it about 1500 times.
Charge at 20% and you can do it about 700 times.
Source: lots of places and lots of experience, but alse here for you to read: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries (oh and "100% DoD" means fully drained battery!)
Peyman92 said:
wait till it asks You to charge , I guess that message is for this . Connect your charger ! under 15% Phone tells You itself
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I hope you dont do that for all your phones as it will destroy your battery way sooner. Charge it when it reaches 50% and you can do 3 to 5 years with the battery at 24/7 use. (Instead of the 1 to 2 years when draining the battery).

Yes, it is recommended to charge the battery when it below 40% and disconnect the charger when it reach 99%. Do not overchange.

There was a big test I did read and the best was to keep it between 40 and 80 percent.
Sent from my SM-N9005 using xda app-developers app

charge it when it prompts you to charge. at 19% you start getting the first recommendation in lockscreen, then at 15% you even get an annoying prompt.
Sent from my SM-N9005 using xda app-developers app

Are you guys seriously sitting and watching until the battery goes down to certain percentage? And for what? Battery is easy to replace and not that expensive, it has a circuit to protect it from over and under charging, to avoid the damage and you get many more shallow charge/discharge cycles than deep ones as already mentioned. I charge my phone daily in the evening at my convenience, usually before I go sleep regardless of what's left (unless I use it so much it can't last until evening), so by the time I go sleep it's 100% and by morning it will be around 97% and normally last me whole day. I've been doing this for yrs and for example my 4yr old Nokia I gave to my friend, still lasts him couple days of light use on original battery. I wouldn't worry about it at all. Every few months you may want to fully discharge it to lets say 3-5% to have the meter calibrated and maybe clean the contacts with alcohol every six months or so, but that's all the maintenance my battery will get or need. If it fails before the phone, it probably had some factory defect or something, but no big deal as long as there is replacement easy to buy and with so many millions of notes sold, there should be.

pete4k said:
Are you guys seriously sitting and watching until the battery goes down to certain percentage? And for what? Battery is easy to replace and not that expensive, it has a circuit to protect it from over and under charging, to avoid the damage and you get many more shallow charge/discharge cycles than deep ones as already mentioned. I charge my phone daily in the evening at my convenience, usually before I go sleep regardless of what's left (unless I use it so much it can't last until evening), so by the time I go sleep it's 100% and by morning it will be around 97% and normally last me whole day. I've been doing this for yrs and for example my 4yr old Nokia I gave to my friend, still lasts him couple days of light use on original battery. I wouldn't worry about it at all. Every few months you may want to fully discharge it to lets say 3-5% to have the meter calibrated and maybe clean the contacts with alcohol every six months or so, but that's all the maintenance my battery will get or need. If it fails before the phone, it probably had some factory defect or something, but no big deal as long as there is replacement easy to buy and with so many millions of notes sold, there should be.
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Couldn't agree more, I charge mine on a evening regardless and phone gets me easily through a day. If I notice a massive drop in the battery not holding a charge then I will buy a new one. More important things to worry about in life than watching my percentage for the battery.
Sent from my SM-N9005 using XDA Premium 4 mobile app

HanZie82 said:
Above are all incorrect!
Charge at 50% and you can do it about 1500 times.
Charge at 20% and you can do it about 700 times.
...
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That is good as a principle but the numbers are still rather big and depend even more on the charging current - if you charge (even) from 50% with 2000 mAh it will never last 1500 recharges - that is why Samsung has slightly improved the Note 3 recharging algorithm so as to use (variable) lower currents (even if the charger is 2000 mAh), and also why it is still far, far better to recharge from a very good USB at under 500 mAh (actually 450) - and indeed preferably from over 40%.

xclub_101 said:
That is good as a principle but the numbers are still rather big and depend even more on the charging current - if you charge (even) from 50% with 2000 mAh it will never last 1500 recharges - that is why Samsung has slightly improved the Note 3 recharging algorithm so as to use (variable) lower currents (even if the charger is 2000 mAh), and also why it is still far, far better to recharge from a very good USB at under 500 mAh (actually 450) - and indeed preferably from over 40%.
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As long as the charging current is lower then 1C (1 full charge for the note3 its 3200mAh) its not a problem and wont shorten lifetime.
But yeah charging at lower currents is better, but more due to less heat and induction.
Anyway its just sad that other people with little to no knowledge about lithium batterys are giving advice, and WRONG advice at that.
Just read the link i posted in previous post (page1) there are the facts. Dont believe just anybody, people are stupid. (yeah im people too )
The chemical reaction will be less when battery is drained and is hard to recover.
But if the battery seems dead, put it in the freezer for 2 or 3 hours and it will be recoverable.
Theres more to these batterys than people think.