Discussion:
SOT: iPad battery
(too old to reply)
Scott
2024-11-17 16:20:49 UTC
Permalink
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
Tweed
2024-11-17 16:35:20 UTC
Permalink
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
This might help:

https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th

Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn’t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn’t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Scott
2024-11-17 20:21:53 UTC
Permalink
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn’t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn’t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
alan_m
2024-11-18 00:23:21 UTC
Permalink
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn’t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn’t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.

My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.

Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk
Scott
2024-11-26 11:46:48 UTC
Permalink
Post by alan_m
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn’t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn’t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.
My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.
Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
Tweed
2024-11-26 12:24:55 UTC
Permalink
Post by Scott
Post by alan_m
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn’t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn’t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.
My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.
Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
Probably similar to the iPhone. My iPhone will charge more slowly if
plugged in overnight, to reach full charge when I get up. Slower charge
rates are always better for battery life. You can disable this if it
doesn’t suit your lifestyle, eg you are on call and might get dragged out
of bed in the middle of the night needing a fully charged phone.

There is lots of information here:

https://batteryuniversity.com/articles

I’m working my way through the book they sell. I liked this from the
introduction:

“The battery is a feeble vessel that is slow to fill, holds limited energy,
runs for a time like a wind up toy, fades and eventually becomes a
nuisance. It exhibits human like qualities in that it needs recuperation
from the daily travails by applying a long and restful charge. It then
delvers for a time and quits on its own terms. Some batteries need as much
charging time as they deliver, and there is a resemblance to growing
teenagers.”
Scott
2024-11-26 12:32:05 UTC
Permalink
On Tue, 26 Nov 2024 12:24:55 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
Post by alan_m
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn?t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn?t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.
My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.
Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
Probably similar to the iPhone. My iPhone will charge more slowly if
plugged in overnight, to reach full charge when I get up. Slower charge
rates are always better for battery life. You can disable this if it
doesn’t suit your lifestyle, eg you are on call and might get dragged out
of bed in the middle of the night needing a fully charged phone.
https://batteryuniversity.com/articles
I’m working my way through the book they sell. I liked this from the
“The battery is a feeble vessel that is slow to fill, holds limited energy,
runs for a time like a wind up toy, fades and eventually becomes a
nuisance. It exhibits human like qualities in that it needs recuperation
from the daily travails by applying a long and restful charge. It then
delvers for a time and quits on its own terms. Some batteries need as much
charging time as they deliver, and there is a resemblance to growing
teenagers.”
(OT) I have argued we should stop fitting heavy and expensive
batteries to buses - at the same time pumping money into the Chinese
economy - and instead place two electric wires above the roadway and
fit the bus with two poles to collect the electricity.
Tweed
2024-11-26 12:38:12 UTC
Permalink
Post by Scott
On Tue, 26 Nov 2024 12:24:55 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
Post by alan_m
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn?t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn?t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.
My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.
Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
Probably similar to the iPhone. My iPhone will charge more slowly if
plugged in overnight, to reach full charge when I get up. Slower charge
rates are always better for battery life. You can disable this if it
doesn’t suit your lifestyle, eg you are on call and might get dragged out
of bed in the middle of the night needing a fully charged phone.
https://batteryuniversity.com/articles
I’m working my way through the book they sell. I liked this from the
“The battery is a feeble vessel that is slow to fill, holds limited energy,
runs for a time like a wind up toy, fades and eventually becomes a
nuisance. It exhibits human like qualities in that it needs recuperation
from the daily travails by applying a long and restful charge. It then
delvers for a time and quits on its own terms. Some batteries need as much
charging time as they deliver, and there is a resemblance to growing
teenagers.”
(OT) I have argued we should stop fitting heavy and expensive
batteries to buses - at the same time pumping money into the Chinese
economy - and instead place two electric wires above the roadway and
fit the bus with two poles to collect the electricity.
The residents of my suburban estate would certainly object to trolley bus
wires.
Scott
2024-11-26 12:52:09 UTC
Permalink
On Tue, 26 Nov 2024 12:38:12 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
On Tue, 26 Nov 2024 12:24:55 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
Post by alan_m
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn?t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn?t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.
My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.
Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
Probably similar to the iPhone. My iPhone will charge more slowly if
plugged in overnight, to reach full charge when I get up. Slower charge
rates are always better for battery life. You can disable this if it
doesn?t suit your lifestyle, eg you are on call and might get dragged out
of bed in the middle of the night needing a fully charged phone.
https://batteryuniversity.com/articles
I?m working my way through the book they sell. I liked this from the
?The battery is a feeble vessel that is slow to fill, holds limited energy,
runs for a time like a wind up toy, fades and eventually becomes a
nuisance. It exhibits human like qualities in that it needs recuperation
from the daily travails by applying a long and restful charge. It then
delvers for a time and quits on its own terms. Some batteries need as much
charging time as they deliver, and there is a resemblance to growing
teenagers.?
(OT) I have argued we should stop fitting heavy and expensive
batteries to buses - at the same time pumping money into the Chinese
economy - and instead place two electric wires above the roadway and
fit the bus with two poles to collect the electricity.
The residents of my suburban estate would certainly object to trolley bus
wires.
Well, I object to putting money into the Chinese economy to allow them
to build up their military and potentially invade Taiwan.
Tweed
2024-11-26 12:55:31 UTC
Permalink
Post by Scott
On Tue, 26 Nov 2024 12:38:12 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
On Tue, 26 Nov 2024 12:24:55 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
Post by alan_m
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn?t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn?t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.
My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.
Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
Probably similar to the iPhone. My iPhone will charge more slowly if
plugged in overnight, to reach full charge when I get up. Slower charge
rates are always better for battery life. You can disable this if it
doesn?t suit your lifestyle, eg you are on call and might get dragged out
of bed in the middle of the night needing a fully charged phone.
https://batteryuniversity.com/articles
I?m working my way through the book they sell. I liked this from the
?The battery is a feeble vessel that is slow to fill, holds limited energy,
runs for a time like a wind up toy, fades and eventually becomes a
nuisance. It exhibits human like qualities in that it needs recuperation
from the daily travails by applying a long and restful charge. It then
delvers for a time and quits on its own terms. Some batteries need as much
charging time as they deliver, and there is a resemblance to growing
teenagers.?
(OT) I have argued we should stop fitting heavy and expensive
batteries to buses - at the same time pumping money into the Chinese
economy - and instead place two electric wires above the roadway and
fit the bus with two poles to collect the electricity.
The residents of my suburban estate would certainly object to trolley bus
wires.
Well, I object to putting money into the Chinese economy to allow them
to build up their military and potentially invade Taiwan.
European Northvolt battery plant, with government backing, has collapsed
flushing a few billion down the drain.
Scott
2024-11-26 13:11:21 UTC
Permalink
On Tue, 26 Nov 2024 12:55:31 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
On Tue, 26 Nov 2024 12:38:12 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
On Tue, 26 Nov 2024 12:24:55 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
Post by alan_m
Post by Scott
On Sun, 17 Nov 2024 16:35:20 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
My new iPad Mini has an option to stop charging the battery when it
reaches 80%. Is this a good idea? I thought battery life was
determined by the number of charge cycles. If it is only an 80%
charge, it will need to be charged more often. I also thought the
software optimised charging to prevent over-charging.
https://electronics.stackexchange.com/questions/623358/wouldnt-charging-a-lithium-battery-to-80-only-defeat-the-purpose-of-putting-th
Put simply, fully discharging or fully charging a lithium ion battery is
detrimental to its lifespan. When you see 0% it isn?t really empty. Some
charge is always left by the battery management circuit. Likewise, choosing
to charge to 80% is better for lifespan but at the detriment of run time.
If you know you are going to need a longer run time it doesn?t really hurt
to charge to 100% one in a while. In fact Apple state your iPad will do
this automatically from time to time, even if you have it set to 80%.
Battery chemistry and use is a complicated subject.
Thank you. This certainly persuades me to accept Apple's offer to
restrict the charge to 80%.
My Samsung phone comes with the option to only charge to 80% to prolong
the life of the battery.
My Huawei laptop comes with some software to do the same and for the
same given reason. On the laptop this only works as long as the laptop
is operational or in sleep mode. If the laptop is fully shut down the
software cannot run and if the charging lead is left in the laptop
battery will charge to 100%.
Tips for power saving
https://bouncepad.com/blogs/resources/maximize-ipad-battery
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
Probably similar to the iPhone. My iPhone will charge more slowly if
plugged in overnight, to reach full charge when I get up. Slower charge
rates are always better for battery life. You can disable this if it
doesn?t suit your lifestyle, eg you are on call and might get dragged out
of bed in the middle of the night needing a fully charged phone.
https://batteryuniversity.com/articles
I?m working my way through the book they sell. I liked this from the
?The battery is a feeble vessel that is slow to fill, holds limited energy,
runs for a time like a wind up toy, fades and eventually becomes a
nuisance. It exhibits human like qualities in that it needs recuperation
from the daily travails by applying a long and restful charge. It then
delvers for a time and quits on its own terms. Some batteries need as much
charging time as they deliver, and there is a resemblance to growing
teenagers.?
(OT) I have argued we should stop fitting heavy and expensive
batteries to buses - at the same time pumping money into the Chinese
economy - and instead place two electric wires above the roadway and
fit the bus with two poles to collect the electricity.
The residents of my suburban estate would certainly object to trolley bus
wires.
Well, I object to putting money into the Chinese economy to allow them
to build up their military and potentially invade Taiwan.
European Northvolt battery plant, with government backing, has collapsed
flushing a few billion down the drain.
Yes, I would say that batteries are a bit rubbish (as my nephew would
put it) and trams and trolleybuses are a better proposition. I really
don't care much about Nimbys when the environment is at stake. Greater
good for the greater number, and all that.
Andy Burns
2024-11-26 13:00:54 UTC
Permalink
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
It's supposed to learn when you start using the phone in the morning
(mainly by checking what alarm you have set) so you put it on charge
when you go to bed, it avoids a fast charge, but makes sure it slowly
gets to 100% by the time you'll unplug it in the morning ... I don't
trust it as my days are a bit random.

When 15QPR1 is released, we should get the option to charge to 80% and
then stop.
Scott
2024-11-26 13:09:12 UTC
Permalink
Post by Andy Burns
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation' but it is unclear what it does. I just turned it on
anyway.
It's supposed to learn when you start using the phone in the morning
(mainly by checking what alarm you have set) so you put it on charge
when you go to bed, it avoids a fast charge, but makes sure it slowly
gets to 100% by the time you'll unplug it in the morning ... I don't
trust it as my days are a bit random.
When 15QPR1 is released, we should get the option to charge to 80% and
then stop.
Does this mean if I turn off the phone every night the concept will
not work?
Andy Burns
2024-11-26 13:13:26 UTC
Permalink
Post by Scott
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation'
you put it on charge when you go to bed, it avoids a fast charge,
but makes sure it slowly gets to 100% by the time you'll unplug it
in the morning ...
Does this mean if I turn off the phone every night the concept will
not work?
Obviously the phone can charge when it's off, but I doubt it can alter
the charging rate throughout the night if it's off...
Tweed
2024-11-26 13:34:19 UTC
Permalink
Post by Andy Burns
Post by Scott
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation'
you put it on charge when you go to bed, it avoids a fast charge,
but makes sure it slowly gets to 100% by the time you'll unplug it
in the morning ...
Does this mean if I turn off the phone every night the concept will
not work?
Obviously the phone can charge when it's off, but I doubt it can alter
the charging rate throughout the night if it's off...
Rather depends on how off it actually is. Modern stuff often has low power
cores that still do minor tasks. I could imagine that battery management
might fall under this, but I’ve no proof.
Scott
2024-11-26 13:58:44 UTC
Permalink
On Tue, 26 Nov 2024 13:34:19 -0000 (UTC), Tweed
Post by Tweed
Post by Andy Burns
Post by Scott
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation'
you put it on charge when you go to bed, it avoids a fast charge,
but makes sure it slowly gets to 100% by the time you'll unplug it
in the morning ...
Does this mean if I turn off the phone every night the concept will
not work?
Obviously the phone can charge when it's off, but I doubt it can alter
the charging rate throughout the night if it's off...
Rather depends on how off it actually is. Modern stuff often has low power
cores that still do minor tasks. I could imagine that battery management
might fall under this, but I’ve no proof.
It must know at least when the battery is getting full.
Tweed
2024-11-26 14:33:06 UTC
Permalink
Post by Scott
On Tue, 26 Nov 2024 13:34:19 -0000 (UTC), Tweed
Post by Tweed
Post by Andy Burns
Post by Scott
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation'
you put it on charge when you go to bed, it avoids a fast charge,
but makes sure it slowly gets to 100% by the time you'll unplug it
in the morning ...
Does this mean if I turn off the phone every night the concept will
not work?
Obviously the phone can charge when it's off, but I doubt it can alter
the charging rate throughout the night if it's off...
Rather depends on how off it actually is. Modern stuff often has low power
cores that still do minor tasks. I could imagine that battery management
might fall under this, but I’ve no proof.
It must know at least when the battery is getting full.
Yes, but that can be done entirely in hardware. No need for a running
processor.
I’m curious as to why you feel the need to turn the phone off each night….
Scott
2024-11-26 14:40:10 UTC
Permalink
On Tue, 26 Nov 2024 14:33:06 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
On Tue, 26 Nov 2024 13:34:19 -0000 (UTC), Tweed
Post by Tweed
Post by Andy Burns
Post by Scott
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation'
you put it on charge when you go to bed, it avoids a fast charge,
but makes sure it slowly gets to 100% by the time you'll unplug it
in the morning ...
Does this mean if I turn off the phone every night the concept will
not work?
Obviously the phone can charge when it's off, but I doubt it can alter
the charging rate throughout the night if it's off...
Rather depends on how off it actually is. Modern stuff often has low power
cores that still do minor tasks. I could imagine that battery management
might fall under this, but I?ve no proof.
It must know at least when the battery is getting full.
Yes, but that can be done entirely in hardware. No need for a running
processor.
I’m curious as to why you feel the need to turn the phone off each night….
I always believed (rightly or wrongly) that it is best practice to
turn the phone off (a) to reduce battery usage and (b) to reset the
phone each day in case something has become corrupted. I also thought
(rightly or wrongly) that it was best to charge a phone while it is
not in use.
Tweed
2024-11-26 17:38:25 UTC
Permalink
Post by Scott
On Tue, 26 Nov 2024 14:33:06 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
On Tue, 26 Nov 2024 13:34:19 -0000 (UTC), Tweed
Post by Tweed
Post by Andy Burns
Post by Scott
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation'
you put it on charge when you go to bed, it avoids a fast charge,
but makes sure it slowly gets to 100% by the time you'll unplug it
in the morning ...
Does this mean if I turn off the phone every night the concept will
not work?
Obviously the phone can charge when it's off, but I doubt it can alter
the charging rate throughout the night if it's off...
Rather depends on how off it actually is. Modern stuff often has low power
cores that still do minor tasks. I could imagine that battery management
might fall under this, but I?ve no proof.
It must know at least when the battery is getting full.
Yes, but that can be done entirely in hardware. No need for a running
processor.
I’m curious as to why you feel the need to turn the phone off each night….
I always believed (rightly or wrongly) that it is best practice to
turn the phone off (a) to reduce battery usage and (b) to reset the
phone each day in case something has become corrupted. I also thought
(rightly or wrongly) that it was best to charge a phone while it is
not in use.
A phone plugged into a charger overnight won’t be using the battery, and as
we’ve discussed, it will be charging the battery in an optimal fashion. I
can’t speak for an Android phone as I don’t have one, but the iPhone
doesn’t, in my experience, need a routine reset.

The only exception to that is if you are someone really worth spying on.
The sophisticated spyware that the agencies use is often only effective
until the next reboot. Such individuals are recommended to routinely
restart their devices.
Scott
2024-11-26 20:55:20 UTC
Permalink
On Tue, 26 Nov 2024 17:38:25 -0000 (UTC), Tweed
Post by Scott
On Tue, 26 Nov 2024 14:33:06 -0000 (UTC), Tweed
Post by Tweed
Post by Scott
On Tue, 26 Nov 2024 13:34:19 -0000 (UTC), Tweed
Post by Tweed
Post by Andy Burns
Post by Scott
Post by Scott
My Pixel comes with a mysterious function called 'battery
optimisation'
you put it on charge when you go to bed, it avoids a fast charge,
but makes sure it slowly gets to 100% by the time you'll unplug it
in the morning ...
Does this mean if I turn off the phone every night the concept will
not work?
Obviously the phone can charge when it's off, but I doubt it can alter
the charging rate throughout the night if it's off...
Rather depends on how off it actually is. Modern stuff often has low power
cores that still do minor tasks. I could imagine that battery management
might fall under this, but I?ve no proof.
It must know at least when the battery is getting full.
Yes, but that can be done entirely in hardware. No need for a running
processor.
I?m curious as to why you feel the need to turn the phone off each night?.
I always believed (rightly or wrongly) that it is best practice to
turn the phone off (a) to reduce battery usage and (b) to reset the
phone each day in case something has become corrupted. I also thought
(rightly or wrongly) that it was best to charge a phone while it is
not in use.
A phone plugged into a charger overnight won’t be using the battery, and as
we’ve discussed, it will be charging the battery in an optimal fashion. I
can’t speak for an Android phone as I don’t have one, but the iPhone
doesn’t, in my experience, need a routine reset.
The only exception to that is if you are someone really worth spying on.
The sophisticated spyware that the agencies use is often only effective
until the next reboot. Such individuals are recommended to routinely
restart their devices.
I cannot possibly comment on this ...
Andy Burns
2024-11-27 09:16:36 UTC
Permalink
I can’t speak for an Android phone as I don’t have one, but the
iPhone doesn’t, in my experience, need a routine reset.
As a Pixel user, I find the roughly monthly updates provide a frequent
enough reboot to avoid problem.


My much older tablet on the other hand no longer gets android updates,
and if I manage to avoid letting the battery go flat, it starts grinding
to a halt and needs a reboot after a few months ...
Roderick Stewart
2024-11-27 09:39:54 UTC
Permalink
Post by Andy Burns
I can’t speak for an Android phone as I don’t have one, but the
iPhone doesn’t, in my experience, need a routine reset.
As a Pixel user, I find the roughly monthly updates provide a frequent
enough reboot to avoid problem.
Same with Android.

Rod.
Scott
2024-11-27 09:52:13 UTC
Permalink
Post by Andy Burns
I can’t speak for an Android phone as I don’t have one, but the
iPhone doesn’t, in my experience, need a routine reset.
As a Pixel user, I find the roughly monthly updates provide a frequent
enough reboot to avoid problem.
My much older tablet on the other hand no longer gets android updates,
and if I manage to avoid letting the battery go flat, it starts grinding
to a halt and needs a reboot after a few months ...
My Pixel no longer receives updates. What is wrong with turning it off
at night anyway?
Andy Burns
2024-11-27 11:21:09 UTC
Permalink
Post by Scott
My Pixel no longer receives updates.
I think they slipped out a "bonus" update for the 5a this month.
Post by Scott
What is wrong with turning it off at night anyway?
If nobody needs to get hold of you, nothing I suppose, but I doubt many
people do that.
Theo
2024-11-27 17:55:52 UTC
Permalink
Post by Tweed
Rather depends on how off it actually is. Modern stuff often has low power
cores that still do minor tasks. I could imagine that battery management
might fall under this, but I’ve no proof.
If the phone is displaying something, like an animation or a battery
percentage, then it's on even when it's off. For the old Samsung phones
(~2014) I've looked at, they boot a minimal Linux kernel to display those
things. This is different from the Linux kernel in the main Android OS they
run when turned 'on'.

Theo

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