experchange > mac.misc

heron stone (01-07-20, 07:39 AM)
i've read that iPhones and iPads should not be left charging at 100%.
for max longevity, they should be kept between 20%-80%

does the same apply to my AirPods.

i don't use them a lot, and i've been leaving them in the case over
night.

should i treat them like my phone and iPad?
Jolly Roger (01-11-20, 06:59 PM)
heron stone <heron> wrote:
> i've read that iPhones and iPads should not be left charging at 100%.
> for max longevity, they should be kept between 20%-80%
> does the same apply to my AirPods.
> i don't use them a lot, and i've been leaving them in the case over
> night.
> should i treat them like my phone and iPad?


You’re overthinking it for all of them. Don’t babysit them. Don’t obsess
over them. Realize that no matter what you do, all batteries have
sophisticated circuitry that does a better job of managing their charge
than you can, and that all of them have limited lifespans and eventually
need to be replaced. When the battery needs to be replaced, you’ll know it.
Until then, just use and enjoy your device.
Lewis (01-12-20, 07:49 AM)
In message <060120202139247840%heron> heron stone <heron> wrote:
> i've read that iPhones and iPads should not be left charging at 100%.
> for max longevity, they should be kept between 20%-80%


You read something wrong, or you misunderstood.

Devices should not be *stored* at 100%, but between 20-80% charge.
gtr (01-12-20, 09:01 AM)
On 2020-01-12 05:49:18 +0000, Lewis said:

> In message <060120202139247840%heron> heron stone
> <heron> wrote:
>> i've read that iPhones and iPads should not be left charging at 100%.
>> for max longevity, they should be kept between 20%-80%

> You read something wrong, or you misunderstood.
> Devices should not be *stored* at 100%, but between 20-80% charge.


Like stored for the season, or while you're on sabbatical or something?
Alan Browne (01-12-20, 07:00 PM)
On 2020-01-12 02:01, gtr wrote:
> On 2020-01-12 05:49:18 +0000, Lewis said:
> Like stored for the season, or while you're on sabbatical or something?


I believe what you referred to above [1] is the latest charge algorithm
from Apple is "intelligent" and, if the option is set, typically not
charge over 80% to promote a longer battery life unless your use pattern
exhibits a need to do so.

in IOS 13.3 this is "Optimized Battery Charging" in the battery settings.

As to non-use, a few weeks or even months won't harm anything. But if
really "off duty" for a long time they should be discharged to about 50%
or charged to there. 80% is okay.

[2] 20% is a little too low as self discharge can bring the voltage over
enough time to below the damage voltage. From there a cell can be
recovered with the right cell charger. But this is not typically built
into phones or other consumer appliances. Even after recovery the cell
capacity is usually lower.

Important to note that "0%" battery on your phone is a good margin above
the damage voltage. OTOH, self discharge is inexorable.
Alan Browne (01-12-20, 07:01 PM)
On 2020-01-12 12:00, Alan Browne wrote:
> On 2020-01-12 02:01, gtr wrote:
> I believe what you referred to above [1] is the latest charge algorithm
> from Apple is "intelligent" and, if the option is set, typically not
> charge over 80% to promote a longer battery life unless your use pattern
> exhibits a need to do so.
> in IOS 13.3 this is "Optimized Battery Charging" in the battery settings.


[which may not apply to Air Pods]
Lewis (01-12-20, 11:39 PM)
In message <qveg7d$mus$2> gtr <xxx> wrote:
> On 2020-01-12 05:49:18 +0000, Lewis said:


>> In message <060120202139247840%heron> heron stone
>> <heron> wrote:
>>> i've read that iPhones and iPads should not be left charging at 100%.
>>> for max longevity, they should be kept between 20%-80%

>> You read something wrong, or you misunderstood.
>> Devices should not be *stored* at 100%, but between 20-80% charge.


> Like stored for the season, or while you're on sabbatical or something?


Stored as in put away for weeks, not a few minutes or overnight.
Lewis (01-12-20, 11:40 PM)
In message <erSdnQ4q1b8rzYbDnZ2dnUU7-R3NnZ2d> Alan Browne <bitbucket> wrote:
> On 2020-01-12 02:01, gtr wrote:


> I believe what you referred to above [1] is the latest charge algorithm
> from Apple is "intelligent" and, if the option is set, typically not
> charge over 80% to promote a longer battery life unless your use pattern
> exhibits a need to do so.


This is incorrect.

> in IOS 13.3 this is "Optimized Battery Charging" in the battery settings.


Which will charge your battery to 100%.
Alan Browne (01-13-20, 12:03 AM)
On 2020-01-12 16:40, Lewis wrote:
> In message <erSdnQ4q1b8rzYbDnZ2dnUU7-R3NnZ2d> Alan Browne <bitbucket> wrote:
> This is incorrect.
> Which will charge your battery to 100%.


Yes, on re-reading what's on the screen, that makes sense.
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