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jwolf6589

macrumors 601
Original poster
Dec 15, 2010
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I am curious not complaining. Bought my 15 inch MacBook Air in Dec of 2023 and my watch series 9 Feb or March of this year and both still register at 100% health remaining. Is Apple getting smarter in their battery tech? Odd why they are still at 100% but good…
 
I very, very, very strongly suspect that Apple products leave the factor with battery health above 100% and that the Settings app “clips” that figure to 100%.

Indeed, anything else would be stupid.

Apple has to deliver at least what they promise — but every single battery used in modern consumer electronics degrades with time, even just sitting in the original unopened box on a shelf. So, rather than earn a lot of justifiable bad press by selling products with less than their advertised capacity, Apple sells products with more than that capacity, but has the product hold the extra capacity in reserve until time does its thing.

I pre-ordered my first-generation Ultra, got it on release day. Its capacity stayed at 100% for a surprisingly long time. Now it’s at 89%, which is reasonably in line with what you’d expect for the age of the device. I still don’t worry about the battery’s charge … just pop it on the charger when I take a shower in the evening, put it back on afterwards if it’s up to at least 80% (which is typically the case by the time I’m ready to put it back on), and otherwise forget about it.

Same story with my first-generation M1 MacBook Air. It’s down to 86%. I’ve never ever had it away from power so long that it had to shut itself down.

If, in another year or three, either battery gets below 80% and I can’t use the device as I want to … well, that’s why I’ve got monthly AppleCare+.

b&
 
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I very, very, very strongly suspect that Apple products leave the factor with battery health above 100% and that the Settings app “clips” that figure to 100%.
I think you are correct on this one. Can you imagine someone buying an iPhone in late summer that was in stock all year indicating 99% battery life. There would be one person that says I’m paying full price so I want full battery percentage. I really think it was a bad decision to have this visible in settings. It should be something that requires a diagnostic tool. Sometimes if you give customers too much information it causes them anxiety.
 
How many charge cycles are reported in System Information/Power tab?
The Mac does not tell and neither does the watch.

My mistake.



Model Information:

Serial Number: D863465A14K1LPDAW

Device Name: bq40z651

Pack Lot Code: 0

PCB Lot Code: 0

Firmware Version: 0b00

Hardware Revision: 100

Cell Revision: 0d17

Charge Information:

The battery’s charge is below the warning level: No

Fully Charged: Yes

Charging: No

State of Charge (%): 100

Health Information:

Cycle Count: 11

Condition: Normal

Maximum Capacity: 100%
 
So, 11 charge cycles in 9 months. I would expect the battery to still be very close to new condition (barely used), so 100% sounds good.
 
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