Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
The one thing I would agree with is if you have seven hours, you would be best using the 5W charger to keep the heat lower.
 
  • Like
Reactions: Aljon
I went into the Apple store today to replace my X battery (87%, but it says "service"). It failed diagnostics. Then it turned out they didn't have the battery in stock.

The claim is that I'm damaging the battery by my usage. Don't exclusively use apple chargers and apple approved wireless chargers. Not something like my Samsung charger, which I like since it doesn't lay flat. The ones on Apple's site are $50 and up. I myself blame excessive usage of the phone, short periods during the day.
 
I went into the Apple store today to replace my X battery (87%, but it says "service"). It failed diagnostics. Then it turned out they didn't have the battery in stock.

The claim is that I'm damaging the battery by my usage. Don't exclusively use apple chargers and apple approved wireless chargers. Not something like my Samsung charger, which I like since it doesn't lay flat. The ones on Apple's site are $50 and up. I myself blame excessive usage of the phone, short periods during the day.
How exactly is usage damaging the battery? Did they clarify that?
 
I myself blame excessive usage of the phone, short periods during the day.
How do you mean?

How exactly is usage damaging the battery? Did they clarify that?

I’m also confused. I’m not sure if the post is saying using non Apple charger has contributed to premature battery degradation.
 
I went into the Apple store today to replace my X battery (87%, but it says "service"). It failed diagnostics. Then it turned out they didn't have the battery in stock.

The claim is that I'm damaging the battery by my usage. Don't exclusively use apple chargers and apple approved wireless chargers. Not something like my Samsung charger, which I like since it doesn't lay flat. The ones on Apple's site are $50 and up. I myself blame excessive usage of the phone, short periods during the day.

First time I hear that using Apple is a requirement for longer battery lifetime.
 
Hello, this is my first time to charged overnight total of 7hours. Im using a charger that comes with the box, is this a good habit to charged every overnight? How can does affect the battery?. Or it's better to charged and remove when it reaches to 100%
there is an option in the battery settings that can help you on that.
It is not very healthy to keep the battery at 100% for many hours, but it is the way most people usually recharge their phone.

With iOS 13 the iPhone will charge until 80% and then, a couple hours before your "typical" walk up, it will charge at 100%. Problem solved.
[automerge]1575214953[/automerge]
Charging automatically stops when it reaches 100%.
No Problem leaving it plugged in all night!!
nope.
You are right and wrong in the same time.
Yes, the battery will stay at 100%, but that IS NOT very healthy for the battery itself.
Batteries should avoid deep discharging (below 10%) and should avoid stay at high level of charge for prolonged time (especially 100%).
[automerge]1575215042[/automerge]
Not necessarily. I have received iDevices with 85ish or more charge as well.
85% is still much better than 100%
 
I love how these questions are asked on here year after year and the OPs that ask them seemingly end up more confused than before asking 😆 just pages of conflicting advice & information. Good luck deciding which advice to go with OP.
 
I love how these questions are asked on here year after year and the OPs that ask them seemingly end up more confused than before asking 😆 just pages of conflicting advice & information. Good luck deciding which advice to go with OP.
Seems like OP's question about charging overnight being safe has been answered in that that's is perfectly safe.

The rest is mostly a tangential discussion about technicalities and edge cases most of which won't really make much of a noticeable difference one way or another for majority of typical users.
 
  • Like
Reactions: Tsepz and EM2013
As I know charging automatically stops when it comes to 100%. I'm doing that for the past few years and nothing happened yet. So I think it is safe. Because of apples optimized charging it will be very easy to manage to charge.
 
  • Like
Reactions: Tsepz
I recently picked up a new 8+ on swappa after several days of scouring the site. It's amazing how in pretty much every single for sale post, someone(usually more than one person) will ask what the battery health is. When they hear 84%, they equate that to a phone with an 84% charge, not knowing that a lithium ion is at end of life once it hits 80%. I saw a phone that would have been perfect for me, but it had 82% battery health. A new battery for an 8+ is only $49, but an extra $49 got me a brand new 8+ for $425, instead of a mint one with a shot battery for $380. I guess the main point is it's strange to see so many people asking about battery health when they have no clue that 80% is end of life. If the scale was the same as the charge level, they would see how worn out 84% is.
Why should 80% be the end of life? A battery that can hold 80% of the original total charge seems quite useable to me. My Xs gives me more than three days of use out of a full charge (and that's just down to 20% or so, not to depletion). If instead of three days I got only two, that would still be pretty good, wouldn't it?
 
Why should 80% be the end of life? A battery that can hold 80% of the original total charge seems quite useable to me. My Xs gives me more than three days of use out of a full charge (and that's just down to 20% or so, not to depletion). If instead of three days I got only two, that would still be pretty good, wouldn't it?
I never understand this either. I assume it means batteries only have around 20% of usefulness at optimum efficiency. To maintain that level of performance it is recommended to replace the battery when the initial 20% has been used up..I still don’t understand the remaining 80 percent’s purpose if manufacturers and general advice is to consider the battery depleted, degraded (used up) with a whopping 80% remaining?

Technically i understand but logically I'm questioning why 50/50 is no longer the accepted threshold. In normal circumstances, throwing away a battery at 80% capacity would be considered wasteful. Why can’t they just show 100 to 80 represented as 100 to zero if that 80% remaining is to be considered useless or inefficient?
 
Last edited:
Why should 80% be the end of life? A battery that can hold 80% of the original total charge seems quite useable to me. My Xs gives me more than three days of use out of a full charge (and that's just down to 20% or so, not to depletion). If instead of three days I got only two, that would still be pretty good, wouldn't it?
I never understand this either. I assume it means batteries only have around 20% of usefulness at optimum efficiency. To maintain that level of performance it is recommended to replace the battery when the initial 20% has been used up..I still don’t understand the remaining 80 percent’s purpose if manufacturers and general advice is to consider the battery depleted, degraded (used up) with a whopping 80% remaining?

Technically i understand but logically I'm questioning why 50/50 is no longer the accepted threshold. In normal circumstances, throwing away a battery at 80% capacity would be considered wasteful
https://batteryuniversity.com/index.php/learn/article/capacity_loss
 
OK, the article explains why batteries age, and says that we should replace them when their total capacity drops to 80% of the original one.
But I still don't get why 80% is considered end of life.
If you have a battery whose total capacity is 80% of that of a healthy one, and you charge it to 100%, isn't that the same as if you had a healthy battery charged to 80%?
I can live perfectly well with an 80% charge (actually, I rarely charge mine past that point).
 
Last edited:
OK, the article explains why batteries age, and says that I should replace them when their total capacity drops to 80% of the original one.
But I still don't get why 80% is considered end of life.
If you have a battery that's at 80% health, and you charge it to 100%, isn't that the same as if you had a healthy battery charged to 80%?
I can live perfectly well with a 80% charge (actually, I rarely charge mine past that point).
It seems that at that capacity there's enough chemical aging of the battery that has happened overall that at least in more general industry terms it's not a battery that is considered to be reliable enough to be seen as even just OK. It might still work for some or even many, but will likely perform fairly poorly and/or unreliably in enough cases that that is the overall threshold that is used.
 
You mean it's not just a reduction in capacity, but also a deterioration of the overall functionality? In other words, a 1000 mAh battery that's at 80% capacity due to age is not the same as a healthy 800 mAh battery?
 
You mean it's not just a reduction in capacity, but also a deterioration of the overall functionality? In other words, a 1000 mAh battery that's at 80% capacity due to age is not the same as a healthy 800 mAh battery?
Correct. As the earlier linked information mentions, there are other factors in play with the capacity simply being one of the better (although not fully complete or necessarily fully accurate) overall indicators related to overall health/aging.
 
the charging is automatic. When it reaches 100% it stops charging the battery. I’ve never had a problem with it
 
Seems like OP's question about charging overnight being safe has been answered in that that's is perfectly safe.

The rest is mostly a tangential discussion about technicalities and edge cases most of which won't really make much of a noticeable difference one way or another for majority of typical users.

Well said!
 
Charging overnight is fine, but you shouldn't charge your phone if you're going to bed and still have 70% left!

During normal workdays my 11 Pro Max lasts two full days (I end the day around 65-70% on the first night and around 30-40% on the second) so I end up charging overnight, but every OTHER night.

The "optimized battery charging" feature has never worked for me; it always charges directly to 100% and sits there until morning. I started using a Qi pad which charges more slowly, so it's not as extreme, but I wonder if my every other day charging schedule is throwing it off.
 
I think it stops charging at 100%. I noticed when my Note 9 and Pro max Is being charged( blue indication) on a wireless charger and reaches a 100%, the indicator on the charger changed to idle (green indicator).
 
If you are using iPhone 11 I need to know about battery life? Is it ok to charge the device overnight?
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.