How much battery do you lose overnight?

[Zombiecrowd]

The only real world issue you need to worry about is very high heat. Like leaving your phone in a car on a 90 degree day. It can damage the battery. Otherwise just charge your phone whenever you need a charge and don't stress over it one bit!

 

[Max(IT)]

Sorry not going for that. I have owned every iPhone and numerous Blackberrys and plugged them all in before I go to bed and unplug when I wake and the battery would spend a good bit of the evening and morning at 100%. Not going to harm the batteries a bit.

Apple put a lot of technology in our devices and there is little you can do to harm the battery except run them to dead or near dead. Apple has even helped the dumb by not allowing you to really run the battery to 100% dead and will shut down before that happens. The new batteries are awesome and have little to no memory and last a long time. I hear people waking in the middle of the night just to unplug their charged phone so it does not harm the battery. So many rumors and misinformation out there.

Best advice is to use your phone and not worry about it. Charge it while you sleep and use it with no worries.

the simple fact you are speaking about "memory" for a lithium battery make me think Im wasting my time....
Do whatever you want with your battery.
Im still telling to people I care to unplug their phone when fully charged

 

[Max(IT)]

Just so you guys know Apple doesn't allow your phone to get near zero or 100 % ever. That's just software telling you where the battery level is. For example when you drain your battery and it gets to where it will tell you zero the phone powers down so the true battery isn't reaching zero.

this has nothing to do with the article I linked above ...
I see many of you didn't read it but keep spreading misinformation ....
As I said, do whatever you want with your battery

 

[Zombiecrowd]

Max, Apple doesn't allow you to charge the battery to 100% no matter if you keep it plugged in for eternity.

 

[HEK]

6s plus 128 GB, Apple wifi 400 Mbps, cable internet 120 Mbps, AT&T LT 2 bars.

If I leave charger on phone wake to 100% which lasts about 30-40 minutes with light checking of mail and posts before dropping to 99%.

If I charge before sleeping to 100%, remove charge cable, set alarm, put phone to sleep, screen dark. When I wake to alarm phone still at 100%. I loose 0%.

Don't have Facebook. Background app refresh off. iCloud backup on and active. Hello Siri on. Most location system services off except for iPhone friend location/find phone. Location and notification off unless app active for most apps except for weather.

 

[HEK]

Sorry not going for that. I have owned every iPhone and numerous Blackberrys and plugged them all in before I go to bed and unplug when I wake and the battery would spend a good bit of the evening and morning at 100%. Not going to harm the batteries a bit.

Apple put a lot of technology in our devices and there is little you can do to harm the battery except run them to dead or near dead. Apple has even helped the dumb by not allowing you to really run the battery to 100% dead and will shut down before that happens. The new batteries are awesome and have little to no memory and last a long time. I hear people waking in the middle of the night just to unplug their charged phone so it does not harm the battery. So many rumors and misinformation out there.

Best advice is to use your phone and not worry about it. Charge it while you sleep and use it with no worries.

Strongly second this post. Phone is designed to cycle trickle charge on and off when at 100%. Had phones since 3GS, never ever hurt the battery. Everyone uses the phone daily off cord. This is not a laptop sitting plugged in for two years straight.

 

[FloridaGary]

Strongly second this post. Phone is designed to cycle trickle charge on and off when at 100%. Had phones since 3GS, never ever hurt the battery. Everyone uses the phone daily off cord. This is not a laptop sitting plugged in for two years straight.

Exactly what I have been doing since iPhone 4, 5, and now 6.

 

[HEK]

The only real world issue you need to worry about is very high heat. Like leaving your phone in a car on a 90 degree day. It can damage the battery. Otherwise just charge your phone whenever you need a charge and don't stress over it one bit!

This person knows about what he speaks. Listen

 

[HEK]

What a ridiculous article you linked here ....

http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

And in particular this

http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries


Li-ion does not need to be fully charged, as is the case with lead acid, nor is it desirable to do so. In fact, it is better not to fully charge, because a high voltage stresses the battery.


Read if you wish, it's quite technical, or don't do it, I don't care.

How many time this need to be stated. Apple has designed the phone and charger system, including software to protect the phone battery from ANY stupid thing the customer can do. The battery never goes to an over or undercharge condition. The percentage you see, is not totally full more totally empty. It is an imaginary number software generated to give you an idea of how much battery time you have left. It is not technical scientific instrument to measure battery condition in a laboratory.

The phone only draws the current it needs from the charger based on battery charge state. From 0 to about 70% using a 2.1 amp iPad charger you will get a 1% increase every minute with an iPhone 6s Plus. After that the current draw is automatically reduce and at 99% the phone only gets a trickle charge. That turns on and off taking phone to 100% and then 99% and back to 100% over and over.

A charge cycle is 0 to 100% and you can do this any way you want, 25% increment, all at once or whatever. You have like 500 or 600 cycles before the battery will hold about 80% of what it did new. This happens gradually through life of phone, not all at once.

End point is you won't hurt or help your battery regardless of how you charge it. APPLE DESIGN TEAM TOOk THAT OUT OF YOUR HANDS, PERIOD. just don't freeze the phone and especially don't cook it sitting on dash of car on sunny day. That will kill your battery wether phone is on or off.

 

[bushman4]

There's no one answer. If your cellphone service is at least 3 bars it shouldn't be more than 3-4 % On WiFi its more complicated . But it shouldn't be more than 5 %. If your service is good your battery loss will be minimal

 

[Max(IT)]

How many time this need to be stated. Apple has designed the phone and charger system, including software to protect the phone battery from ANY stupid thing the customer can do. The battery never goes to an over or undercharge condition. The percentage you see, is not totally full more totally empty. It is an imaginary number software generated to give you an idea of how much battery time you have left. It is not technical scientific instrument to measure battery condition in a laboratory.

The phone only draws the current it needs from the charger based on battery charge state. From 0 to about 70% using a 2.1 amp iPad charger you will get a 1% increase every minute with an iPhone 6s Plus. After that the current draw is automatically reduce and at 99% the phone only gets a trickle charge. That turns on and off taking phone to 100% and then 99% and back to 100% over and over.

A charge cycle is 0 to 100% and you can do this any way you want, 25% increment, all at once or whatever. You have like 500 or 600 cycles before the battery will hold about 80% of what it did new. This happens gradually through life of phone, not all at once.

End point is you won't hurt or help your battery regardless of how you charge it. APPLE DESIGN TEAM TOOk THAT OUT OF YOUR HANDS, PERIOD. just don't freeze the phone and especially don't cook it sitting on dash of car on sunny day. That will kill your battery wether phone is on or off.

Last answer, I'm tired...
you and the others clearly didn't understand nor read the article.
no one spoke about OVERCHARGING.
the 100% charge isn't overcharging.
the article, and it is chemical, spoke about fully charged battery. It is normal, it is within limits, but in the long period it ruins the battery if kept at 100% for a prolonged period of time.
Apple engineers are veery good, but they can't change chemicals reactions even if they are brilliant.
Believe what you want, but the safer behavior is to unplug the phone when it reach 100%.

 

[HEK]

Last answer, I'm tired...
you and the others clearly didn't understand nor read the article.
no one spoke about OVERCHARGING.
the 100% charge isn't overcharging.
the article, and it is chemical, spoke about fully charged battery. It is normal, it is within limits, but in the long period it ruins the battery if kept at 100% for a prolonged period of time.
Apple engineers are veery good, but they can't change chemicals reactions even if they are brilliant.
Believe what you want, but the safer behavior is to unplug the phone when it reach 100%.

You still don't understand, 100 % on the phone symbol is not fully charged. And no one leaves the phone charging much longer than overnight anyway. All the phones I have had, 3GS, 4s, 5s, 6+, and now 6s+ have all been charged overnight and never had a battery problem. I did have a worl hp laptop that was left on charger for over a year, that battery did get damaged and would barely hold a charge. No one does that with their phone.

 

[Max(IT)]

You still don't understand, 100 % on the phone symbol is not fully charged. And no one leaves the phone charging much longer than overnight anyway. All the phones I have had, 3GS, 4s, 5s, 6+, and now 6s+ have all been charged overnight and never had a battery problem. I did have a worl hp laptop that was left on charger for over a year, that battery did get damaged and would barely hold a charge. No one does that with their phone.

you are the one not understanding.
100% is what Apple engineers (actually not Apple, but battery suppliers) decided is the FULLY CHARGED VOLTAGE. That is 100%. The battery itself could accept something more, but it would be not safe in the long time.
So they decided that value will be shown as 100%.
Well, if you keep your battery constantly at 100% it will be affected over the time. It won't explode. It won't die after a single year. But it will last less than a battery unplugged every time it reaches 100%

 

[JulianL]

My Phone is at 48% and is at 144 hours standby so that's 52% used in pretty much exactly 6 days. If we say that "overnight" is 8 hours then that's an average of about 2.9% overnight drain. I find it's non linear though; after first taking it off the charger it can stick at 100% for almost a day (if I don't use it at all) and then start dropping.

This is on a 6s without low power mode engaged, with screen at 50% (although that's pretty much irrelevant since I've only had it on for a total of maybe 5 minutes in the last 6 days), WiFi and Bluetooth off but is on the mobile network (alternating between 3G and 4G because I'm only in about a 2-bar signal strength zone). I have background refresh off, contacts and calendar set to manual fetch, no email set up on my phone and iCloud backup disabled.

You caught me at a good time by the way. I'm currently leaving my phone unused out of curiosity to see how long it does last on standby with no usage which is why I'm able to quote such crazy standby times; it's because there's no usage at all apart from my waking it up maybe a couple of times a day to look at the battery percentage and maybe once a day to go into battery settings to see how long it's been going. Right now I predict I will get about 11.4 days of standby before the battery hits 1%. Not too bad but only really of academic interest since turning on the screen obviously starts draining the battery really fast.

On the basis of my phone's performance when I'm actually using it for things like reading ebooks I'm not sure I believe Apples claimed "up to 11 hours" of battery life for watching HD videos. Reading a locally stored ebook should definitely be no more power-draining than watching an HD video, in fact it should be a lot less in terms of CPU power, and I've not managed to get much above 9 hours let alone reach 11.

Apple have worked miracles with the iPhone 6s in terms of things like how fast and accurate TouchID is now, it really is almost magical. Apple now needs to apply some of that magic to improving battery life for future iPhones and try and help out existing iPhone users by really working to fulfil its promise of battery life improvements in iOS 9.

 

[Newtons Apple]

the simple fact you are speaking about "memory" for a lithium battery make me think Im wasting my time....
Do whatever you want with your battery.
Im still telling to people I care to unplug their phone when fully charged

There has and always will be bad information like this.

What you are doing will not harm you phone either, so enjoy!

 

[Mercenary]

Fact: You shouldn't fully charge or discharge lithium ion batteries.

But heres the rub. Most modern electronics wont actually let you fully charge or discharge your battery. When it says zero on the phone the cells actually have 10% or more in them. Same for charging, when it gets 'full' its actually not full but close. It then maintains a 100% readout by charging and discharging the battery slightly.

So just use your phone, charge, discharge, play games, run it down. ENJOY IT and you wont damage it. Its rare you will find a bit of modern tech which doesn't manage the battery for you. My radio controlled models are different as they can run the battery right down and the chargers are usually cheap and pants.

 

[TG1]

I lose 0-2% overnight with my 6S Plus. Do Not Disturb is on and Low Power Mode is on.

 

[roeiz]

My 6s+ I keep it without power saving and whatnot and if at 100% wake up at 100%

that only because you have TSMC

 

[HEK]

you are the one not understanding.
100% is what Apple engineers (actually not Apple, but battery suppliers) decided is the FULLY CHARGED VOLTAGE. That is 100%. The battery itself could accept something more, but it would be not safe in the long time.
So they decided that value will be shown as 100%.
Well, if you keep your battery constantly at 100% it will be affected over the time. It won't explode. It won't die after a single year. But it will last less than a battery unplugged every time it reaches 100%

I will never know as I will have anew phone next year

 

[Coreless apples]

iPhone 6S Plus 64gb
Chipset- Unknown
Usage-30 minutes
Standby-9hr 20minutes

Charged it on low power mode. Once it was fully juiced I took it off the charger and low power mode and just had it on my night stand. Unlocked it this morning and still had 100%

 

[Rayy42]

If I'm not at home and I don't charge my phone overnight, I don't place the device on airplane mode or anything like that, I typically lose 1-3% battery since I leave all apps running in the background and don't modify or change anything.

I have a Gold 64GB iPhone 6 Plus that was manufactured in July of this year (got on insurance) if that helps.

 

[minature]

Hrmm.. Mine doesn't seem normal then. I'm losing about 5-10% battery overnight (5-8hours).
Phone on wifi, DND on, brightness on lowest..

 

[john g.]

6S 64GB. Airplane mode overnight, usually zero change, occasionally 1%.

 

[Will22]

I loose 4% over a 9 hour night on my 6 and 6% over the same time with the same setting(except for hey Siri) on my 6s

I don't change any settings overnight so everything that is on during the day is on during the night.

 

[decafjava]

Last answer, I'm tired...
you and the others clearly didn't understand nor read the article.
no one spoke about OVERCHARGING.
the 100% charge isn't overcharging.
the article, and it is chemical, spoke about fully charged battery. It is normal, it is within limits, but in the long period it ruins the battery if kept at 100% for a prolonged period of time.
Apple engineers are veery good, but they can't change chemicals reactions even if they are brilliant.
Believe what you want, but the safer behavior is to unplug the phone when it reach 100%.

Yes if you left it plugged in for three weeks straight maybe (I just picked that figure) sure. Over 2 or three years that particular habit won't harm the battery as much as just regular use.

I can post articles too so look: http://lifehacker.com/smartphone-battery-myths-explained-1735327089

Myth: Charging Your Battery Overnight Kills the Long-Term Battery Life
In the same vein as calibrating your battery, it used to be possible to ruin a battery by “overcharging,” or leaving it plugged in all the time. When you plugged in your phone for long periods, older lithium-ion batteries could overheat (or explode, in rare cases), which in turn just reduces the charge capacity and long-term life of the battery (this can still happen if you have a case that doesn’t allow for heat to dissipate).

These days, chargers and smartphones are smart enough to prevent this from happening. Speaking with iFixit technical writer Andrew Goldberg, Popular Mechanics has this to say:

Something that’s not an issue is overcharging. Contrary to what you might think (or have been told), leaving your phone or laptop plugged in all the time is not bad for its battery. That’s because your gadgets, the batteries in them, and the chargers you attach them to are actually pretty smart about the way they do business. Trickle charge—what your battery gets when it’s connected and full—is way less detrimental to the battery’s health than a larger discharge would be.

That said, leaving your phone plugged in all the time can still lead to degradation, but it’s not enough that you’ll even notice. As we’ve pointed out before, if you want to extend the life of your battery, you want to keep it between 40%-80% all the time. That sounds great on paper, but it’s pretty ludicrous for someone living in the modern world. The good news is leaving it plugged in overnight while you sleep, even if it’s close to full, doesn’t negatively affect it as much as it used to.

So leaving it plugged in will not affect the battery over the normal lifetime of the phone.