Is overcharging bad for battery life?

[chambone]

I'm calling your BS

You are wrong, read about lithium-ion batteries and come back, I will be waiting.

Here is a read to understand the smaller the depth of discharge, the longer the battery will last: http://dx.doi.org/10.1016%2Fj.engappai.2012.02.015

Or if you want me to put it simple for you, read apple's website:
http://www.apple.com/batteries/

That funky first link redirects me to an unrelated page, and I don't have to read Apple's guidelines to know that they will never recommend leaving it plugged in when charged. In fact, most electronics manufacturers, including Apple, will tell you the opposite. And any li-ion cell manufacturer will tell you to take the battery off the charger as soon as it is fully charged, and preferably before that if prolonging battery health is your goal.

Leaving charged li-ion batteries connected is bad practice. Period. Not because of overcharging concerns, but because they suffer capacity loss at higher voltages. This is a verifiable fact, that a multitude of sources and ten minutes with google will confirm.

You come across as someone who doesn't even consider that being wrong is a possibility, so I hate to be the one to tell you that in this case, you are.

This:

the more you leave it plugged in, the better the life of the battery

is false, and pretty bad advice. Leaving it plugged in will kill your battery sooner, if anything.

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Usually I charge my iPhone when I go to sleep.
So most of the times I will overcharge...
Is this bad?

Just try not to run your phone down completely every day. It will have far more impact on the health of your battery than charging over night does. Quick charges during the day to keep it from draining would be better.

 

[andrewjones90]

Well, overdoing anything adversely affects and it happens in all the aspects and same is in with your battery charging. Overcharging can lead to some negative effects sooner or later for your battery life. So take proper care while plugging in the battery.

 

[Carlanga]

That funky first link redirects me to an unrelated page, and I don't have to read Apple's guidelines to know that they will never recommend leaving it plugged in when charged. In fact, most electronics manufacturers, including Apple, will tell you the opposite. And any li-ion cell manufacturer will tell you to take the battery off the charger as soon as it is fully charged, and preferably before that if prolonging battery health is your goal.

Leaving charged li-ion batteries connected is bad practice. Period. Not because of overcharging concerns, but because they suffer capacity loss at higher voltages. This is a verifiable fact, that a multitude of sources and ten minutes with google will confirm.

You come across as someone who doesn't even consider that being wrong is a possibility, so I hate to be the one to tell you that in this case, you are.

This:

is false, and pretty bad advice. Leaving it plugged in will kill your battery sooner, if anything.

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Just try not to run your phone down completely every day. It will have far more impact on the health of your battery than charging over night does. Quick charges during the day to keep it from draining would be better.

LMAO. The first link that you said is "funky" is real science written from a real scientific paper in a real science paper page similar to pubmed; I'm sorry is too hard for you to grasp.

So you didn't click on apple'a link because you didn't want to say you were wrong, great. I guess you know more than the people that actually research & work w batteries for a living and you know even more than apple. You are funny or is it that you fail to understand that a lithium ion battery lasts based on age and CYCLE count. I would tell you to search cycle count, but alas you won't do that.

Also ,do know that apple devices can't be over-charged and they have safety boards which protects them from overcharge, fuse opens for increase voltage if applied to the terminals an increase voltage. You know official batteries and not cheap knock offs. Here is a PDF from Panasonic that I'm sure you won't read http://www.panasonic.com/industrial/includes/pdf/Panasonic_LiIon_Charging.pdf

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Well, overdoing anything adversely affects and it happens in all the aspects and same is in with your battery charging. Overcharging can lead to some negative effects sooner or later for your battery life. So take proper care while plugging in the battery.

You can't overcharge an iPhone

 

[Oui]

Well, overdoing anything adversely affects and it happens in all the aspects and same is in with your battery charging. Overcharging can lead to some negative effects sooner or later for your battery life. So take proper care while plugging in the battery.

Concerning modern day batteries and electronics this is complete garbage.

 

[Max(IT)]

Usually I charge my iPhone when I go to sleep.
So most of the times I will overcharge...
Is this bad?

It's not really possible to overcharge a smart lithium battery, but it would be better to charge it before going to sleep and leave the iPhone in aero mode alla night long.

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At the contrary, the more you leave it plugged in, the better the life of the battery. The batteries of today are not the same ones of the 90's so plug away, it's recommended.

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false info, don't spread false info.

Not completely true.
While is true that you cannot really overcharge a lithium battery (there is a circuit preventing that), the battery suffer from very low voltage AND from HIGH voltage.
The best is to leave the battery between 75-90% of its capacity.
So the best way to preserve the battery is to charge your iPhone till 100%, disconnect immediately and then leave it slowly discharge overnight till 96-98% ....

 

[E2EK1EL]

Usually I charge my iPhone when I go to sleep.
So most of the times I will overcharge...
Is this bad?

My charging patterns for all my iPhones:

Charge it as much as I can to get the electrons moving; never let my battery drop pass 30%, once a month drain it until it's dead and do a full undisturbed charge past 100% for 1-2 hours. I'm super grateful I've had strong LTE signal from my carrier everywhere I go in my city. Only time I had a sketchy signal was during my trip to NYC, T-Mobile was a bit sketchy in my hotel room for my 5 day vacation.

Charging past 100%, iOS is designed not to overcharge and will discharge itself automatically.

(My IP3G still holds a full or very good charge after 5 years with this pattern)


Apple Battery Technology

Looks exactly like how our batteries are made and behaves.

 

[Puff daddy]

Yes will destroy a battery! That's why they change them out for seventy dollars! Stop
Spreading bull s... On here trolls

 

[PNutts]

That funky first link redirects me to an unrelated page, and I don't have to read Apple's guidelines to know that they will never recommend leaving it plugged in when charged. In fact, most electronics manufacturers, including Apple, will tell you the opposite. And any li-ion cell manufacturer will tell you to take the battery off the charger as soon as it is fully charged, and preferably before that if prolonging battery health is your goal.

Leaving charged li-ion batteries connected is bad practice. Period. Not because of overcharging concerns, but because they suffer capacity loss at higher voltages. This is a verifiable fact, that a multitude of sources and ten minutes with google will confirm.

You come across as someone who doesn't even consider that being wrong is a possibility, so I hate to be the one to tell you that in this case, you are.

This:

is false, and pretty bad advice. Leaving it plugged in will kill your battery sooner, if anything.

----------



Just try not to run your phone down completely every day. It will have far more impact on the health of your battery than charging over night does. Quick charges during the day to keep it from draining would be better.

I don't want to get into your tug of war but just about everything you said is wrong. You simply don't understand because you won't read Apple's guidelines. Keep in mind you're not discussing battery theory, you're discussing batteries in a practical application utilizing a smart charging circuit.

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once a month drain it until it's dead

I used to do that too and then sneaky Apple took that recommendation of their website sometime this year.

 

[E2EK1EL]

I don't want to get into your tug of war but just about everything you said is wrong. You simply don't understand because you won't read Apple's guidelines. Keep in mind you're not discussing battery theory, you're discussing batteries in a practical application utilizing a smart charging circuit.

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I used to do that too and then sneaky Apple took that recommendation of their website sometime this year.

Interesting, what's the proper way to condition and recalibrate our battery meters now? I didn't see any new recommendations from Apple on their site.

 

[PNutts]

Interesting, what's the proper way to condition and recalibrate our battery meters now? I didn't see any new recommendations from Apple on their site.

To be honest I've never seen anything from Apple called calibration for iOS devices. People refer to the once a month drain as calibration and some folks also recommend a reset after it charges.

Without any recommendation from Apple my quick answer is that it isn't necessary.

 

[E2EK1EL]

To be honest I've never seen anything from Apple called calibration for iOS devices. People refer to the once a month drain as calibration and some folks also recommend a reset after it charges.

Without any recommendation from Apple my quick answer is that it isn't necessary.

It was posted before, didn't realize they've removed the recommendation until you mentioned it.

 

[Tiger8]

It was posted before, didn't realize they've removed the recommendation until you mentioned it.

I agree with you, they had that once a month calibration piece.

For me, I got a portable battery that has been working great! Even if I leave it plugged, the external battery would die

 

[iBighouse]

Water balloons and battery analogy?!? I refuse to accept false analogies because everybody knows that a battery is like an elephant. It has a skin and stuff inside. Severely dehydrated elephants will die early and it's bad to not give them water or they die very early. They will also pop if filled with too much water.

So, dunk your battery in water to make it live longer but don't overdo it.

 

[Mercenary]

If you look on the apple site on the right hand side they now only say to drain and charge once a month if you don't plan on using it all that often.

The best advice for lithium ion has always been to just use it. Keep the electrons moving.

All this stuff about not charging to 100% or letting your battery go to zero is true. But here's the rub, your phone battery won't ever actually reach 100% of its capacity. The phone may report its at 100% but that's 100% of the safe top limit. The same goes for zero, it won't ever fully drain the battery. It always keeps some charge remaining.

So all these science papers are based on lab theory. Not real world use.

Just use the damn phone and charge it when you can. Don't worry about over charging or running it down. The iPhones hardware, ALL phones hardware will take care of things and not let you do anything stupid.

 

[Bodycalming]

I use Battery Doctor by Beijing Kingsoft, it keeps track of charges, overcharges and lots of other stuff and it's free.

 

[Tysknaden]

I cannot believe, that the trickle charging, which continues after loading does reach 100 percent, does not cause ageing.

Stop spreading false information.
The charging cable will not be worn out by leaving it plugged in.
And the battery wont be harmed if you charge it close to being full.

 

[Max(IT)]

If you look on the apple site on the right hand side they now only say to drain and charge once a month if you don't plan on using it all that often.

The best advice for lithium ion has always been to just use it. Keep the electrons moving.

All this stuff about not charging to 100% or letting your battery go to zero is true. But here's the rub, your phone battery won't ever actually reach 100% of its capacity. The phone may report its at 100% but that's 100% of the safe top limit. The same goes for zero, it won't ever fully drain the battery. It always keeps some charge remaining.

So all these science papers are based on lab theory. Not real world use.

Just use the damn phone and charge it when you can. Don't worry about over charging or running it down. The iPhones hardware, ALL phones hardware will take care of things and not let you do anything stupid.

Not entirely true.
If you let your battery goes to "0 %", it's not really zero as you stated above, but since battery slowly drains itself over the time, voltage is going to reach a dangerous low level in a few days and you are potentially ruin the battery.

 

[Oui]

I cannot believe, that the trickle charging, which continues after loading does reach 100 percent, does not cause ageing.

You can believe what you like.
However fact is fact.

 

[Ethanallen]

No one is giving a clear answer for this problem, please give a correct answer if really know - I am also facing the same problem

 

[Tysknaden]

Facts - delivered by a company, who probably wants you to buy a completely new device - instead of exchanging the battery with a fresh one Thanks!
And since when is charging not making the battery ageing? The trickle charging does not end, when battery is full - it just continues endlessly. So there must be an ongoing effect on the battery, tells logic.
And show me the piece of text with the sentence, in which Apple states, that trickle charging after a hundred percent is reached does not hurt the batteries lifespann. And in this context it is interesting, that there is no option in amazing incredible iOS 7 for activating a warning signal, that charging is complete.

You can believe what you like.
However fact is fact.

 

[decafjava]

Facts - delivered by a company, who probably wants you to buy a completely new device - instead of exchanging the battery with a fresh one Thanks!
And since when is charging not making the battery ageing? The trickle charging does not end, when battery is full - it just continues endlessly. So there must be an ongoing effect on the battery, tells logic.
And show me the piece of text with the sentence, in which Apple states, that trickle charging after a hundred percent is reached does not hurt the batteries lifespann. And in this context it is interesting, that there is no option in amazing incredible iOS 7 for activating a warning signal, that charging is complete.

Wrong, the phone itself stops charging once at 100% - there are smart circuits that prevent that. Not just in the iphone but all smartphones. That's why there is no warning signal - it's not needed. Feature phones always recommend unplugging at 100% on the other hand. Mine has a signal. On the same note my gum external batter pack has no such chips so it is stated in the intro to remove the battery from the plug once it is fully charged.

 

[Tysknaden]

https://www.macrumors.com/2012/03/2...-continued-charging-beyond-100-battery-level/

Wrong, the phone itself stops charging once at 100% - there are smart circuits that prevent that. Not just in the iphone but all smartphones. That's why there is no warning signal - it's not needed. Feature phones always recommend unplugging at 100% on the other hand. Mine has a signal. On the same note my gum external batter pack has no such chips so it is stated in the intro to remove the battery from the plug once it is fully charged.

 

[decafjava]

https://www.macrumors.com/2012/03/2...-continued-charging-beyond-100-battery-level/

From the link:

“That circuitry is designed so you can keep your device plugged in as long as you would like,” Tchao said. “It’s a great feature that’s always been in iOS.

No whether you believe him or not is one thing do you have any scientific proof that is not the case when other smart mobile devices have a similar feature?

 

[Tysknaden]

The link makes clear, that you are wrong. The loading in fact does NOT stop. Now, you can give me the "scientific proof", that loading a battery does not make it ageing :-D

From the link:



No whether you believe him or not is one thing do you have any scientific proof that is not the case when other smart mobile devices have a similar feature?

 

[cynics]

You don't trickle charge lithium ion batteries. Ever unplug the phone when it's at 100% and it read 97-99%? A trickle wouldn't allow this drop.

Plus I have wall outlet USB chargers they have a green light when in use. I can plug my iPhone in and at 100% they shut off, after a while they will come back on. Meaning it's charging then stopping.

Now I'm not sure whether there is something in the circuitry to throttle current throughout the charge or not.

Google search battery university charging lithium ion. Their page is full of interesting stuff.