Database Users

Cradle use and battery health

At the office I leave my phone in a cradle. When I get calls I remove the phone to answer and then return it to the cradle when done. My battery goes from 100% down to somewhere in the 90's then charges back to 100% in the cradle. Does this repeated process harm the battery in any way? I've read that these batteries don't suffer from the memory effect, but I'm still not sure if this counts as a charging cycle.
Sent from my Desire HD using XDA App

You should always let the battery run down completely some times maybe once a week.

Really? I've read on this forum that there is no need to do that with the new Lithium Ion batteries. I've even read that this could have a negative effect and you should try not to let the battery drain completly.
I don't understand why there isn't a proper battery care section in the manual. Its as if its some kind of voodoo science.

Perhaps not Once a week. But Once a "while"
The reason is that, Phone software uses approximation to calculate the charge left in the Battery. So over time, battery ages and software may not be calibrated to match with the battery's storage capacity. So draining the battery entirely and charging them fully gives the phone's software to assess the battery's health and recalibrate.

It's a lithium battery mate. The only way you can really damage it is by a complete discharge. So long as you don't switch the phone back on once it switches itself off due to low battery you needn't worry about anything else.

Also in theory the lithium batteries have a lifespan of say about a 1000 charges for example and everytime you charge it has one charging less left. This ofcourse isn't exactly how it is in practice but charging the battery alot wears it down. It isn't good either to keep it in the charger for a longer time after it's reached a 100%.

Hi,
this is only partly correct:
Suppose the battery can make 1000 (which I don't believe) charge cycles,
it means that you can charge 1000 times from empty to full.
If you just charge 1000 times from 50% empty to full it counts for 500 cycles!
So,
don't worry, let it stay in the cradle if you like
There are 500 opinions about that but believe, as I wrote is correct.
Theo

Yes, what I said wasn't exact science and I used 1000 cycles as an example, but from what I've read it is better to let the battery drain to less than 50% and then charge it full rather than charge 5% at a time. My previous post was meant to illustrate this.
Sent from my Leedroid powered pocketsized supercomputer using XDA App

geenome said:
You should always let the battery run down completely some times maybe once a week.
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Click to collapse
That's a load of crap, no offense... Lithium batteries have no memory effect and have absolutely no need to be completely discharged, that's a ancient thing from the time of nickel-metal hybrid batteries. The only actual reason for full charge cycles is to calibrate the device for that exact battery.
Keeping a lithium-ion battery in a charger most of the time will wear the battery down faster than getting it drain more and then charging it. Keeping the battery almost fully loaded/in a constant loading state wears the battery capacity by approximately 20% a year (can't recall the source/study just now)(EDIT: and my personal experience is that the battery capacity will wear that much anyway, no matter how you use it). The life-cycle of phones these days are roughly two years nowadays so IMO you can keep it in a cradle with no worries, if you wish. And lets face it, a new battery after a year of usage won't be that big an investment after all.

To add to the above post, running down a lithium battery completely does more damage than benefit. This is almost impossible though with normal use as the phone shuts down long before the battery is completely empty

Charging Nexus 7 before using it for 1st time?

Should I charge it for like 10 hours, then play with it? or you think its ok to just start playing out of the box.
I've heard stories..where you should, and where it's not necessary.
Thanks

lin013190 said:
Should I charge it for like 10 hours, then play with it? or you think its ok to just start playing out of the box.
I've heard stories..where you should, and where it's not necessary.
Thanks
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Click to collapse
Mine came nearly full. I just plugged it into charger out of the box and played with it while it was charging
Sent from my Nexus 7 using Tapatalk 2

With any new phone I always play with it till it dies and then plug it in and charge for 8 hours and then power it on and good to go
Sent from my EVO using xda app-developers app

Hmm, I see.:cyclops:

With every electronic gadget using Lithium-ion batteries nowadays, it doesn't really matter how/when you charge it.
Some would argue to make sure to allow a full discharge from a full charge from a battery calibration point of view, so the battery meter is more accurate. It wouldn't affect the health of the battery itself either way.
Things like memory effect doesn't apply to lithium-ion. How often you charge it and how much you charge it (full or partial charge etc.) doesn't affect it much either. The only 2 things that can potential kill a lithium-ion is high temperature and letting it discharge far too low to the point that it cannot be charged up again. Note that all electronic devices will power off way before it even reaches this threshold.

What makaijin says is correct
I had mine a bit of a charge yesterday but it was no where near full.
Used it till it was flat this morning. It's currently on charge and I'm going to leave it till it's full only because I need to stop messing with it and do other things
Sent from my HTC One X using Tapatalk 2

I charged mine for 4 hours before use.

Although it is probably not necessary nowadays, I like to fully discharge the device, then charge it overnight (so it gets back up to 100% and tops off), then cycle it that way 2/3 times, so properly "condition" the battery, as I don't 100% trust the conditioning done before shipping.
Just as a side note, most of the battery conditioning lore is coming from way back in the bad ol' nicad days (probably 1990's), when you HAD to 100% discharge/recharge the battery, and make sure it didn't overcharge or undercharge, else it would not be "conditioned" properly, and it had a permanently reduced max charge. Nowadays, expecially with Lion, it is not necessary, and may even be harmful to fully discharge/recharge cycle EVERY time you use it. The first few times it's probably best to do it to fully condition the battery, but beyond that, it really does nothing.

hanthesolo said:
Although it is probably not necessary nowadays, I like to fully discharge the device, then charge it overnight (so it gets back up to 100% and tops off), then cycle it that way 2/3 times, so properly "condition" the battery, as I don't 100% trust the conditioning done before shipping.
Just as a side note, most of the battery conditioning lore is coming from way back in the bad ol' nicad days (probably 1990's), when you HAD to 100% discharge/recharge the battery, and make sure it didn't overcharge or undercharge, else it would not be "conditioned" properly, and it had a permanently reduced max charge. Nowadays, expecially with Lion, it is not necessary, and may even be harmful to fully discharge/recharge cycle EVERY time you use it. The first few times it's probably best to do it to fully condition the battery, but beyond that, it really does nothing.
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"Conditioning" does not occur with li-on batteries, period. Charging/discharging does absolutely nothing for the life of your battery.

Ifixit shows that the battery inside the Nexus 7 is Lithium Polymer. Does that make a difference in terms of conditioning compared to Li-Ion batteries?

MaxCarnage said:
"Conditioning" does not occur with li-on batteries, period. Charging/discharging does absolutely nothing for the life of your battery.
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Click to collapse
Oh, thanks. I thought that was my being paranoid .
Lithium Polymer batteries are actually worse than Lithium-Ion. Don't take my word for it, but at least with older RC Lipo batteries, fully discharging damages them even more the lithium-ion. I am sure the tablet cuts off way before the danger point, but still something to keep in mind.

Here's the deal- and this has been verified on multiple devices with larger batteries- Your tablet will need to self-calibrate the battery meter/charging to the battery. You can expect things like sketchy battery life and running down very low or completely overnight for the first couple days. Once everything "syncs up", you can take advantage of the full potential of the battery. This happened with my Razr Maxx and it happened on my Nexus 7's first overnight. And, talking to people who have had their Nexus 7's a few days, it's common and expected.
As said, it is NOT the battery conditioning, it is the device calibrating. The battery is pretty big and there's a period of time while the device learns.

I decided to drain the battery all the way and then charge it all the way up. It's charging right now actually, any idea how long it should take to get up to 100%?
Sent from my SAMSUNG-SGH-I777 using xda app-developers app

phoneman09 said:
I decided to drain the battery all the way and then charge it all the way up. It's charging right now actually, any idea how long it should take to get up to 100%?
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
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Click to collapse
Not sure but you can always tap the power button to pull up the battery charge animation. It should let you know when it is fully charged.
Sent from my Nexus 7 using Tapatalk 2

Over discharging a Lithium Ion battery can ruin it in a single cycle. Of course any consumer device should shut off before that happens but deep discharges to the shut off point still permanently reduce battery capacity significantly more than shallower discharge cycles.
In simple terms, you'll get significantly more hours of battery use during its lifetime if you only discharge to 50% than 10% or less.
Lithium Ion batteries never need to be "fully discharged" to the device shut off point and as stated above, it isn't "good" for them.
That said, a discharge from fully charged to at or near shutoff let's the device software measure the battery capacity more accurately so you'll get a more accurate battery reading.
Lithium Ion batteries should not be charged at elevated temperatures. If you just watched a two hour movie, let it cool down before charging. A tablet is a nasty place for a battery with the CPU heating it up. Most manufacturers advise not charging at > 85 deg F and 70 deg F is better. A really good charger will measure battery temperature and reduce the max charging rate at elevated temperatures.
Lithium Ion batteries should be stored at 50-70% capacity and not fully charged. That's ~3.7 V per cell. Those of us who use the device a lot on external power would see a lot longer battery life if there was a mode which allowed keeping the battery below 100% while on external power. It seems every manufacturer thinks consumers are too dumb to understand the value of providing it and switching to full charge mode before we run off on battery power.

TP_NC_USER said:
Over discharging a Lithium Ion battery can ruin it in a single cycle. Of course any consumer device should shut off before that happens but deep discharges to the shut off point still permanently reduce battery capacity significantly more than shallower discharge cycles.
In simple terms, you'll get significantly more hours of battery use during its lifetime if you only discharge to 50% than 10% or less.
Lithium Ion batteries never need to be "fully discharged" to the device shut off point and as stated above, it isn't "good" for them.
That said, a discharge from fully charged to at or near shutoff let's the device software measure the battery capacity more accurately so you'll get a more accurate battery reading.
Lithium Ion batteries should not be charged at elevated temperatures. If you just watched a two hour movie, let it cool down before charging. A tablet is a nasty place for a battery with the CPU heating it up. Most manufacturers advise not charging at > 85 deg F and 70 deg F is better. A really good charger will measure battery temperature and reduce the max charging rate at elevated temperatures.
Lithium Ion batteries should be stored at 50-70% capacity and not fully charged. That's ~3.7 V per cell. Those of us who use the device a lot on external power would see a lot longer battery life if there was a mode which allowed keeping the battery below 100% while on external power. It seems every manufacturer thinks consumers are too dumb to understand the value of providing it and switching to full charge mode before we run off on battery power.
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I would rather always have my battery near max charge when I take it off the charger than have a battery last 7 years instead of 3 or 4 in a device I will realistically only use extensively for 2. Even more so with a phone where they battery can replaced for $20. I'll take a full charge every time over the battery lasting for years longer than I need it to.
I have a first gen iPod Touch I bought when they were released (2007 I think?). I have left it on a charger for MONTHS. Still holds a decent charge.

Is there benefit to using a battery calibration app like this if you're rooted?
https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=en

You don't have to but I like to. Mine was like 40% charged when I unboxed
Sent from my Nexus 7 using xda app-developers app

sRDennyCrane said:
Here's the deal- and this has been verified on multiple devices with larger batteries- Your tablet will need to self-calibrate the battery meter/charging to the battery. You can expect things like sketchy battery life and running down very low or completely overnight for the first couple days. Once everything "syncs up", you can take advantage of the full potential of the battery. This happened with my Razr Maxx and it happened on my Nexus 7's first overnight. And, talking to people who have had their Nexus 7's a few days, it's common and expected.
As said, it is NOT the battery conditioning, it is the device calibrating. The battery is pretty big and there's a period of time while the device learns.
Click to expand...
Click to collapse
Calibration occurs every time the battery is charged to 100%. It isn't a "first few days" type of thing, it is every single time the battery meter reaches 100%.

I had no choice but to completely charge my N7 (purchased from Office Depot 7/14). When I went to turn it on the first time, I was greeted with small text in the upper left side of the screen that said "show low battery logo" on a completely black screen. No logo...no nothing. Completely blank. Plugged it in, the battery charging logo popped up, fully charged it and it's been working great since.
However, I found it a bit odd as I thought most of these types of devices ship with about a 40% battery charge.
Thoughts?

[Q] Keeping the Nexus 10 plugged-in

I have read conflicting articles on increasing the battery life of Lithium-ion batteries (the ones used in Nexus 10). Most of the Lithium ion batteries have a lifespan of 300-400 charge/discharge cycles. From my understanding, this means that it is bad to fully discharge the batteries and then recharge them as it reduces from the above mentioned lifespan and it is better to top-off the battery often as possible.
In fact there was an article that I read on Cnet specifically for the iPad (I'm not allowed to post outside links for some reason, google: "ipad keep plugged in" and the first article in the search result) , where they recommend to keep the iPad plugged-in whenever possible to increase the battery life.
I use my Nexus 10 a lot at house. So, Is it better to keep it plugged-in all that time?

roshanpius said:
I have read conflicting articles on increasing the battery life of Lithium-ion batteries (the ones used in Nexus 10). Most of the Lithium ion batteries have a lifespan of 300-400 charge/discharge cycles. From my understanding, this means that it is bad to fully discharge the batteries and then recharge them as it reduces from the above mentioned lifespan and it is better to top-off the battery often as possible.
Click to expand...
Click to collapse
This is correct.
In fact there was an article that I read on Cnet specifically for the iPad (I'm not allowed to post outside links for some reason, google: "ipad keep plugged in" and the first article in the search result) , where they recommend to keep the iPad plugged-in whenever possible to increase the battery life.
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Click to collapse
The life span of LiIon/LiPoly batteries is also reduced when the battery is at or near 100% for a prolonged time. Don't think too much about it, just use the N10 and recharge it often. I usually try to plug it back in around the 70% mark.
It's also quite easy to open up the tablet, you only need a screwdriver and a plastic prying tool and then you can change the battery yourself, if it ever should become necessary (unlikely, unless you plan to use it for ~5 years).
> http://www.powerbookmedic.com/wordpress/2012/11/16/google-nexus-10-take-apart-first-look

i don't care about it... i leave it plugged whenever i can
chances are, those who take "good care" of their battery may end up with 10% more life in 2 years.... and frankly, i couldn't care less about that
not worth the hassle of worrying about batteries anymore

Best practice actually is to drain to 40% and charge up to 80%. Dropping to 90% and charging back up to 100% a bunch is still bad for your battery, as is leaving it plugged in over night when it reached 100% long before you wake up.

EniGmA1987 said:
Best practice actually is to drain to 40% and charge up to 80%. Dropping to 90% and charging back up to 100% a bunch is still bad for your battery, as is leaving it plugged in over night when it reached 100% long before you wake up.
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Click to collapse
It stops charging upon reaching 100%.

Its hard to follow those instructions when your out 24 hours a day, or maybe you just want to use your tablet
Don't worry about doing extra stuff.. like the user said I could careless..
Just don't let your device die, charge it once it hit like 15%..
Saying charge your device once it at 70% is like only driving your car for 5miles and putting it back in the garage and walk the rest of the way..
Sent from my Nexus 10 using Tapatalk 2

YoungAceAtlanta said:
Saying charge your device once it at 70% is like only driving your car for 5miles and putting it back in the garage and walk the rest of the way..
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Click to collapse
I didn't say you have to do that. If it's possible I recharge early, if not I just use it anyway.
Doesn't really matter too much since the battery can be exchanged rather easily if it ever comes to that.

BoneXDA said:
It stops charging upon reaching 100%.
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Click to collapse
Yes, and then it drains a bit and goes back to charging, over and over the rest of the night.

I've read that Li-ion batteries don't like "deep cycles", that is, fully dischanging then fully charging, because this shortens the battery's life. Also that it's not good to have it at 100% for a prolonged time. So it would be best to always have the device partially charged, plugging it if below 50% and unplugging at 90%. When the battery reaches 90% some phones even notify you that "the battery is full, and you can disconnect from charger"
Source: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

N7100 over charging

I generally try not to charge my note 2 overnight. I want this battery to be healthy as long as possible, so I don't want it to sit at high voltages for too long.
Normally my note 2 is around 80 percent when I go to sleep so I don't plug it in at night, I just plug it in in the morning for an hour before going to work. It reaches 100 and then I remove it.
The times when my battery is much lower that I won't be able to charge it in the morning in the hour, I do charge it overnight.
What I've noticed is that the battery drains much slower on the days it's been on the charger overnight.
So I'm thinking that the charger will continue to raise the voltage even after it reaches 100%. Maybe someone has some other thoughts, but I just wanted to share what I've noticed so people are careful with their battery.

Hi,
Charge it yhe way you want. Don't stress on it.
But for a few tips:
Don't let the lithium-ion battery go down to critical battery levels before charge.
Don't put the battery on the refrigerator.
Don't over charge it even if it's a new battery .

Simone said:
Hi,
Charge it yhe way you want. Don't stress on it.
But for a few tips:
Don't let the lithium-ion battery go down to critical battery levels before charge.
Don't put the battery on the refrigerator.
Don't over charge it even if it's a new battery .
Click to expand...
Click to collapse
So basically i can't charge the battery overnight? I don't understand the meaning of don't overcharge it.

Raging_Ken said:
So basically i can't charge the battery overnight? I don't understand the meaning of don't overcharge it.
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Click to collapse
You can but can potentially damage the battery. It's up to you.

I'm going to disagree with you guys. The charger and the battery has overcharging protection built in. So don't speculate with overcharging overnight. In fact when the phone has stayed longer on the charger I got better battery life. Cheers
Sent from my GT-N7100

kirilorius said:
I'm going to disagree with you guys. The charger and the battery has overcharging protection built in. So don't speculate with overcharging overnight. In fact when the phone has stayed longer on the charger I got better battery life. Cheers
Sent from my GT-N7100
Click to expand...
Click to collapse
Yes, I know. So why would you charge your phone overnight? So it would stay 100% when you wake up?

I charge my phone overnight everyday.
The battery magnet would trigger the charger into trickle mode. This prevents overcharging.
Li-ion battery prefers to be charged then discharged. Contrary to hearsays, discharging it to critical levels too often would actually degrade battery life.
My Nexus one of 2 years still maintained a 84% charge because of this.

Simone said:
Yes, I know. So why would you charge your phone overnight? So it would stay 100% when you wake up?
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Click to collapse
Cause i'm using it all day till 1-2 o'clock at night and thats the only time i can charge my phone. And with the heavy usage im putting it the battery cant hold more then 15-16 hours
Sent from my GT-N7100

The battery have both overcharging and undercharging protection.
So there is no problem charging your phone overnight, the battery will stop charging when it is full. It will then be allowed to discharge a bit and the charging cycle will resume. The fluctuations caused by this charge/discharge cycle are usually hidden by the firmware so that you only see 100% - charged.
As for undercharging, it can indeed kill batteries, but it won't happen unless you drain the battery completely *and* let it self-discharge for a few weeks.
You don't have to adopt a specific charging pattern to keep your battery in good shape, just do what's most convenient for you.
Some tips however :
- Avoid high temperatures, batteries don't like it. The fridge is actually a good place to store your batteries provided that you took the necessary steps to prevent condensation.
- Store unused Li-Ion batteries at about 50% charge. Fully charged batteries have a lower shelf life, the 50% are there to prevent self-discharge from causing undercharging.
- A full discharge-charge cycle won't make your battery healthier but it is useful to recalibrate the power gauge.

kirilorius said:
Cause i'm using it all day till 1-2 o'clock at night and thats the only time i can charge my phone. And with the heavy usage im putting it the battery cant hold more then 15-16 hours
Sent from my GT-N7100
Click to expand...
Click to collapse
I see. Well, in your case it may be better.

Because during the night it gets more time to detect the proper voltage and stop.
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges and it's only $20 at most to replace. No need to stress it over. Use it all you want and replace it the time comes. Leave the stressing over to the non-replaceable guys.
Sent from my GT-N7100 using xda premium

BBlax said:
Because during the night it gets more time to detect the proper voltage and stop.
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges and it's only $20 at most to replace. No need to stress it over. Use it all you want and replace it the time comes. Leave the stressing over to the non-replaceable guys.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Exactly.

If said battery full unplug charger, i let the phone still connect to charger moreless 1 hour...
Sent from my GT-N7100 using xda premium

Rudyansah said:
If said battery full unplug charger, i let the phone still connect to charger moreless 1 hour...
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Why anyone stresses over a $20 user replaceable part is beyond me. I think you're too used to iPhones

kebabs said:
Why anyone stresses over a $20 user replaceable part is beyond me. I think you're too used to iPhones
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I love eating kebabs. LOL :cyclops:

BBlax said:
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges
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You telling me if i charge once a day, the battery will still have over 80% charge after 6 years of years? I find that hard to believe as all my previous batteries have to be replaced after 2 to 3 years of use.

That's the quote from manufacturers under ideal conditions. The only devices that I haven't threw out for that long are laptops and the battery in them are still working flawlessly and holds a reasonable charge.
Even tiny LSD batteries can have up to 1000 charges so higher capacity ones will last longer and be more durable due to the increased amount of cells. Just like how higher capacity nand will last longer than lower ones.
Sent from my GT-N7100 using xda premium

It's a 30 battery. Treat it like **** and just replace it when it dies! By the time it's dead you'll be wanting a new phone anyway.

[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
Click to expand...
Click to collapse
about 20% is the best time i read somewhere

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

persiansoftware said:
if i empty the battery, is damage my battery??
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Click to collapse
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
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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.
...
Click to expand...
Click to collapse
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%.
Click to expand...
Click to collapse
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.