Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

mtulman1

macrumors 6502
Original poster
Oct 17, 2015
281
240
Hi Everyone: I have replaced my M1 with an M4 and love it. I noticed a lot of threads discuss battery capacity on older devices, and battery life, etc. When i am at my desk during the week, I have my iPad plugged in charging while i use it. I rarely take my iPad away from home since i work at home so is it really bad to have it constantly plugged in and charging? Is it “safer” to unplug it and only charge when needed? I never really understood that pro and cons of it, etc. Thanks!
 
  • Sad
Reactions: Cirillo Gherardo

mtulman1

macrumors 6502
Original poster
Oct 17, 2015
281
240
There is a new feature for M4 iPads, in the battery health section, that allows you to only charge it to a maximum of 80 percent, That protects the battery from wear and tear over the long term.
If i toggle that setting on, there should be harm in keeping it plugged in at my desk? I guess i never thought it would ever be an issue before.
 

Apleeseed84

macrumors 6502a
Oct 22, 2020
763
539
Hi Everyone: I have replaced my M1 with an M4 and love it. I noticed a lot of threads discuss battery capacity on older devices, and battery life, etc. When i am at my desk during the week, I have my iPad plugged in charging while i use it. I rarely take my iPad away from home since i work at home so is it really bad to have it constantly plugged in and charging? Is it “safer” to unplug it and only charge when needed? I never really understood that pro and cons of it, etc. Thanks!
If you use apple branded chargers and blocks you have nothing to worry about because after they hit 80% or if you enable battery conservation they won’t overcharge Your iPad. If you use like gas station chargers they will ”over” charge devices. I’ve been doing it for like ever and barely my ipad battery is still above 85%
 
  • Like
Reactions: mtulman1

ericwn

macrumors G4
Apr 24, 2016
11,952
10,623
If you use apple branded chargers and blocks you have nothing to worry about because after they hit 80% or if you enable battery conservation they won’t overcharge Your iPad. If you use like gas station chargers they will ”over” charge devices. I’ve been doing it for like ever and barely my ipad battery is still above 85%

The charge going into the device is accepted or not by the device. The type of charger should be irrelevant as long as it provides sufficient power.
 
  • Like
Reactions: Jackbequickly

Jackbequickly

macrumors 68030
Aug 6, 2022
2,683
2,730
I use my new 13 iPad in my lap 90% of the time and keep it set to the 80% charge limit. After days of use I am still on 1 cycle for my battery. I can not see where it will hurt the battery and will continue to do the same.
 
  • Love
Reactions: hovscorpion12

bmat

macrumors 6502
Nov 24, 2004
469
10
East Coast, USA
Even with the 80% limit, it will occasionally charge to 100%, however, it doesn't happen everytime. Last time my 15 pro Max went to 100% was back in January.
Is there a reason why it does charge to 100%. I just experienced that—was plugged in and using it, and it went to 100% despite having the 80% limit activated.
 

Scott-n-Houston

macrumors 65816
Apr 27, 2008
1,023
338
Houston (duh)
Is there a reason why it does charge to 100%. I just experienced that—was plugged in and using it, and it went to 100% despite having the 80% limit activated.
It does it to ensure the battery is measured properly. Essentially synchronizing the charge meter with the batteries true capacity. The software needs that measurement updated after a period of time.
 

rkuo

macrumors 65816
Sep 25, 2010
1,279
886
If you use apple branded chargers and blocks you have nothing to worry about because after they hit 80% or if you enable battery conservation they won’t overcharge Your iPad. If you use like gas station chargers they will ”over” charge devices. I’ve been doing it for like ever and barely my ipad battery is still above 85%
Actually, the iPad "pulls" however much charge it wants in all cases. The charge does not "push" energy into the device.
 

hovscorpion12

macrumors 68030
Sep 12, 2011
2,735
2,739
USA
Is there a reason why it does charge to 100%. I just experienced that—was plugged in and using it, and it went to 100% despite having the 80% limit activated.

yeah. as @Scott-n-Houston mentioned it's more of a battery measurement. I would have liked it if it stopped at 80 permanently.

Might be a M5 required feature🤣
 

Apleeseed84

macrumors 6502a
Oct 22, 2020
763
539
The charge going into the device is accepted or not by the device. The type of charger should be irrelevant as long as it provides sufficient power.
That’s how you damage your battery though, the type of charger does matter because when it reaches a certain point, it will continue to charge after being filled. That’s the difference between Apple branded and second party chargers, they might say they continue to charge but the brick won’t be hot.
 
  • Angry
Reactions: rkuo

hovscorpion12

macrumors 68030
Sep 12, 2011
2,735
2,739
USA
I've exclusively stopped using Apple charging bricks and use Anker 100W wall chargers. Been like this for last 3-years
 

ericwn

macrumors G4
Apr 24, 2016
11,952
10,623
That’s how you damage your battery though, the type of charger does matter because when it reaches a certain point, it will continue to charge after being filled. That’s the difference between Apple branded and second party chargers, they might say they continue to charge but the brick won’t be hot.
That is nonsense. Only a person in charge of selling you the - often times missing - apple charger would tell you that.
 

Apleeseed84

macrumors 6502a
Oct 22, 2020
763
539
That is nonsense. Only a person in charge of selling you the - often times missing - apple charger would tell you that.
I wasn’t an accessories salesman LOL, but the apple ”Seed” courses did go in-depth about it, since i don’t work in cellphones anymore I obviously can’t provide the necessary documentation on why they only recommend apple and second party chargers like ankers and the like, In all Reality the main culprits are the cheap chargers you find in gas stations that actively continue to push the charge and don’t pay licensing to Apple per se.
 
Last edited:

aevan

macrumors 601
Feb 5, 2015
4,453
7,079
Serbia
Even with the 80% limit, it will occasionally charge to 100%, however, it doesn't happen everytime. Last time my 15 pro Max went to 100% was back in January.

That is by design, to properly calibrate whatever is reporting the battery charge level. Apple notes that in their documentation.
 
  • Like
Reactions: hovscorpion12

aevan

macrumors 601
Feb 5, 2015
4,453
7,079
Serbia
I've exclusively stopped using Apple charging bricks and use Anker 100W wall chargers. Been like this for last 3-years

I use Anker chargers as well. Never had an issue with them.

Anker is a well known brand that makes quality products, so no worries there. But you should never use no-name cheap chargers - because who knows how they are made and what safeguards they come with.
 
  • Like
Reactions: hovscorpion12

ericwn

macrumors G4
Apr 24, 2016
11,952
10,623
I wasn’t an accessories salesman LOL, but the apple ”Seed” courses did go in-depth about it, since i don’t work in cellphones anymore I obviously can’t provide the necessary documentation on why they only recommend apple and second party chargers like ankers and the like, In all Reality the main culprits are the cheap chargers you find in gas stations that actively continue to push the charge and don’t pay licensing to Apple per se.

You read it somewhere. Got you. Usbc and contactless charging are everywhere. This scenario you are painting is not realistic. A third party charger from my quality manufacturer is not a problem in real life.
 
  • Like
Reactions: Digitalguy

Digitalguy

macrumors 601
Apr 15, 2019
4,471
4,244
I wasn’t an accessories salesman LOL, but the apple ”Seed” courses did go in-depth about it, since i don’t work in cellphones anymore I obviously can’t provide the necessary documentation on why they only recommend apple and second party chargers like ankers and the like, In all Reality the main culprits are the cheap chargers you find in gas stations that actively continue to push the charge and don’t pay licensing to Apple per se.
That's nonsense, are ericwn said. It's the BMS that stops the charging, not the charger.
 

hovscorpion12

macrumors 68030
Sep 12, 2011
2,735
2,739
USA
Anker is a well known brand that makes quality products, so no worries there. But you should never use no-name cheap chargers - because who knows how they are made and what safeguards they come with.
Yeah. I don't trust the CVS branded chargers. Lol. Other then Anker, Satechi has some nice chargers
 

Cirillo Gherardo

macrumors regular
May 9, 2024
178
222
There is ZERO harm in keeping it plugged in, or using it however you see fit. You CANNOT stop the battery from degrading, no matter how you use it, and you CANNOT make the battery degrade slower by any MEANINGFUL amount. You can use the product without worrying about the battery and after 3 years it will be around 85-90%. Or you can obsess over the battery and baby it and after 3 years …it will still be around 85-90%.

Please note my emphasis on the word MEANINGFUL here. People will try to debate until they turn blue about preserving battery capacity and ways to slow battery degradation…but whether or not that is physically possible is not what matters. What matters is whether or not it can be done to a MEANINGFUL extent. And it cannot. There is no possible way to extend battery life so much that it would ever be worth the effort required to do so.

Just use your device and do not once ever think or care about the battery.
 
  • Like
Reactions: transmaster
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.