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Pangalactic

macrumors 6502a
Original poster
Nov 28, 2016
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Screenshot 2020-11-28 at 23.09.42.png
 

Nate Spencer

macrumors member
Jun 5, 2015
54
30
It's called optimized charging. You can disable that under system preferences => battery. Over time it will reduce your battery life.
 
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Pangalactic

macrumors 6502a
Original poster
Nov 28, 2016
514
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It's called optimized charging. You can disable that under system preferences => battery. Over time it will reduce your battery life.

No, that's not it, optimized charging - according to the description, at least - refers to charging after 80% capacity is reached.
I suspect this has got more to do with the ridiculously slow 30W charger that Apple supplies with the Macbook Air - compared to the 60W charger for Macbook Pro 13''
 
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Nate Spencer

macrumors member
Jun 5, 2015
54
30
No, that's not it, optimized charging - according to the description, at least - refers to charging after 80% capacity is reached.
I suspect this has got more to do with the ridiculously slow 30W charger that Apple supplies with the Macbook Air - compared to the 60W charger for Macbook Pro 13''
Have you tried it? I have. It made a difference sub 80%. Unless you are hammering the machine while charging it should charge a bit faster than that.
 

jerryk

macrumors 604
Nov 3, 2011
7,421
4,208
SF Bay Area
I could, but it's a $100 extra on top of the laptop price in my country. Quite a shameful policy by Apple to provide such crappy chargers for premium laptops.
Same charger as previous MB Airs. About size battery also. Air is a budget system.

USB-C chargers are universal and the systems negotiate the charge power. So if you have a higher power USB-C charger then it should work. Back when we could travel I usually carried one USB-C 60W charger and used it for my 16" MBP, Samsung S10, iPad Pro.
 
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acidfast7_redux

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Nov 10, 2020
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I could, but it's a $100 extra on top of the laptop price in my country. Quite a shameful policy by Apple to provide such crappy chargers for premium laptops.
Actually, you won't see a difference as the higher-wattage changers never go above 40W.

Also, 3 hours is very extreme with the 30W charger, thus you must be heavily using the machine while charging. I'm usually around 2h from around 10 to 15%.
 

acidfast7_redux

Suspended
Nov 10, 2020
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uk
Apple says design like on a MBP is 1000 or less cycles. 3000 is really spectacular.

I understand that. That's why I don't follow the specs.

I'm a (bio)chemist FWIW and those electrons need to move.

I would have used it more but the second SSD in the machine failed and it wasn't worth another replacement.

M1MBA to the rescue. I think it has 10 cycles on the battery already as well.

I used my machines a lot.
 

Pangalactic

macrumors 6502a
Original poster
Nov 28, 2016
514
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Update:
Screenshot 2020-11-29 at 00.05.10.png


Well, almost an hour has passed since my post, and I'm at around 60%, which gives the Macbook Air 40% per hour (or 2h 30m) charging speed. I guess it is functioning normally, even though I would prefer it to charge faster. Looks like the battery charging speed indicator is quite a bit off the charts.
 

acidfast7_redux

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Nov 10, 2020
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uk
Update:
View attachment 1682102

Well, almost an hour has passed since my post, and I'm at around 60%, which gives the Macbook Air 40% per hour (or 2h 30m) charging speed. I guess it is functioning normally, even though I would prefer it to charge faster. Looks like the battery charging speed indicator is quite a bit off the charts.
Do the calculation with 30W and the mAh battery capacity.

I see 12.5% battery charge per 15min segment. Then it slows after 80% to about half that speed.
 

deeddawg

macrumors G5
Jun 14, 2010
12,468
6,571
US
It won't help. The MBA won't pull over 40W.
Really? Folks have mentioned the bottom mentioning 20V 3A.

I'll take your word for it -- in which case the OP's complaint is effectively moot.

Edit - the cited charger is still a really handy desktop unit I've been using a while now. :p
 

JohnnyGo

macrumors 6502a
Sep 9, 2009
957
620
Actually, you won't see a difference as the higher-wattage changers never go above 40W.

Also, 3 hours is very extreme with the 30W charger, thus you must be heavily using the machine while charging. I'm usually around 2h from around 10 to 15%.

+1
If you’re using your MBA while charging it will take longer, it’s math
 
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acidfast7_redux

Suspended
Nov 10, 2020
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That's well done considering Apple limits cycles to 1000 even in the M1.
AND you managed to perform a full cycle recharge every day for over 8 years!
Yeah. I bought the early-2013 rMBP MD101 that was an out going model and used the **** out it.

It was actually 3100 or so cycles.

I'll see if I can find it in coconut battery.
 
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DeanL

macrumors 65816
May 29, 2014
1,357
1,290
London
Is your MacBook Air hot?
I think that because there is no fan, if you Mac gets hot while you charge and use it, the charging slows down.
 
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