Having charged my phone overnight to 100% by approx. 11:00 am it was
down to 37% and the phone felt quite warm. Between 7:00 am and 11:00 am,
I briefly used one app for a few moments and made no calls or other use
of the phone. At 14:00 pm I charged it up to 100% again and between then
and 17:00 pm it has lost 12% of its charge doing nothing.
Does this indicate it is FUBAR and needs mending with a new phone, I
have had it since the start of Covid and apart from a few occasions when
it has had problems connecting and requiring resets it has been in the
main OK.
The model is a Motorola 5G.
Richard
On Thu, 12 Mar 2026 17:09:56 +0000, Tricky Dicky wrote:
Having charged my phone overnight to 100% by approx. 11:00 am it was
down to 37% and the phone felt quite warm. Between 7:00 am and 11:00 am,
I briefly used one app for a few moments and made no calls or other use
of the phone. At 14:00 pm I charged it up to 100% again and between then
and 17:00 pm it has lost 12% of its charge doing nothing.
Does this indicate it is FUBAR and needs mending with a new phone, I
have had it since the start of Covid and apart from a few occasions when
it has had problems connecting and requiring resets it has been in the
main OK.
The model is a Motorola 5G.
Richard
The phone shouldn't feel quite warm in normal use.
Only during fast charging.
It is probable that there is an internal fault with the phone which is causing a rapid discharge, either software or hardware.
The phone will usually get warm when it is in use, i.e.transmitting and receiving constantly.
Having charged my phone overnight to 100% by approx. 11:00 am it was
down to 37% and the phone felt quite warm. Between 7:00 am and 11:00 am,
I briefly used one app for a few moments and made no calls or other use
of the phone. At 14:00 pm I charged it up to 100% again and between then
and 17:00 pm it has lost 12% of its charge doing nothing.
On 16/03/2026 10:44, Trolleybus wrote:
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris <ithinkiam@gmail.com>
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was issued
to me by BT for a trial of MMS in the fixed network. This must have
been about 2002-4. It's still working fine on the original batteries!
I'm not surprised, but wouldn't that have been NiMH rather than lithium?
Chris <ithinkiam@gmail.com> wrote:
Jeff Layman <Jeff@invalid.invalid> wrote:
On 16/03/2026 10:44, Trolleybus wrote:
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris <ithinkiam@gmail.com>
That's not a great plan. Constantly charging the phone can reduce its >>>>> lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was issued
to me by BT for a trial of MMS in the fixed network. This must have
been about 2002-4. It's still working fine on the original batteries!
I'm not surprised, but wouldn't that have been NiMH rather than lithium?
Exactly. They normally have AAA batteries that can be replaced.
My home gigaset handsets are on their third set of batteries. Changed last >> week most recently. YMMV.
Counter intuitively low capacity NiMh cells are better for DECT cordless phones than high capacity ones. The low capacity ones are much more
tolerant of being left on continuous trickle charge.
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and
receiving constantly.
My phone is permanently plugged into this desktop except when I am out
and about so its always on charge And it is always warm.
And its running NOTHING beyond whatsapp, SMS messages and incoming call shit. Wifi is 5 feet away.
The Natural Philosopher <tnp@invalid.invalid> wrote:
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and
receiving constantly.
My phone is permanently plugged into this desktop except when I am out
and about so its always on charge And it is always warm.
That's not a great plan. Constantly charging the phone can reduce its lifespan significantly.
On 15/03/2026 17:29, Chris wrote:
The Natural Philosopher <tnp@invalid.invalid> wrote:
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and >>>> receiving constantly.
My phone is permanently plugged into this desktop except when I am out
and about so its always on charge And it is always warm.
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
Many manufactures of phones and laptops recommend that you only charge
to 80% and incorporate inbuilt software to allow users to configure that option. My Samsung phone has this feature and will report that "charging
has stopped to protect the battery"
For the Motorola 5G
https://www.youtube.com/watch?v=9p-3HMak2eU
On 15 Mar 2026 at 19:28:06 GMT, alan_m wrote:
On 15/03/2026 17:29, Chris wrote:
The Natural Philosopher <tnp@invalid.invalid> wrote:
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and >>>>> receiving constantly.
My phone is permanently plugged into this desktop except when I am out >>>> and about so its always on charge And it is always warm.
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
Many manufactures of phones and laptops recommend that you only charge
to 80% and incorporate inbuilt software to allow users to configure that
option. My Samsung phone has this feature and will report that "charging
has stopped to protect the battery"
For the Motorola 5G
https://www.youtube.com/watch?v=9p-3HMak2eU
The Apple stuff I've got all charge to 100% by default
doing that every day while still keeping within spec - 80% of battery capacity
after 1000 cycles.
Charging does tend to slow considerably after about 90%, though.
RJH <patchmoney@gmx.com> wrote:
On 15 Mar 2026 at 19:28:06 GMT, alan_m wrote:
On 15/03/2026 17:29, Chris wrote:
The Natural Philosopher <tnp@invalid.invalid> wrote:
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and >>>>>> receiving constantly.
My phone is permanently plugged into this desktop except when I am out >>>>> and about so its always on charge And it is always warm.
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
Many manufactures of phones and laptops recommend that you only charge
to 80% and incorporate inbuilt software to allow users to configure that >>> option. My Samsung phone has this feature and will report that "charging >>> has stopped to protect the battery"
For the Motorola 5G
https://www.youtube.com/watch?v=9p-3HMak2eU
The Apple stuff I've got all charge to 100% by default
My mac regularly holds the charge at 80% for a while before going all the
way 100%.
The Apple stuff I've got all charge to 100% by default - and they've been doing that every day while still keeping within spec - 80% of battery capacity
after 1000 cycles.
The Natural Philosopher <tnp@invalid.invalid> wrote:
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and >>> receiving constantly.
My phone is permanently plugged into this desktop except when I am out
and about so its always on charge And it is always warm.
That's not a great plan. Constantly charging the phone can reduce its >lifespan significantly.
And its running NOTHING beyond whatsapp, SMS messages and incoming call
shit. Wifi is 5 feet away.
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris <ithinkiam@gmail.com>
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was issued
to me by BT for a trial of MMS in the fixed network. This must have
been about 2002-4. It's still working fine on the original batteries!
On 16/03/2026 10:44, Trolleybus wrote:
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris <ithinkiam@gmail.com>
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was issued
to me by BT for a trial of MMS in the fixed network. This must have
been about 2002-4. It's still working fine on the original batteries!
I'm not surprised, but wouldn't that have been NiMH rather than lithium?
Jeff Layman <Jeff@invalid.invalid> wrote:
On 16/03/2026 10:44, Trolleybus wrote:
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris <ithinkiam@gmail.com>
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was issued
to me by BT for a trial of MMS in the fixed network. This must have
been about 2002-4. It's still working fine on the original batteries!
I'm not surprised, but wouldn't that have been NiMH rather than lithium?
Exactly. They normally have AAA batteries that can be replaced.
My home gigaset handsets are on their third set of batteries. Changed last week most recently. YMMV.
Chris <ithinkiam@gmail.com> wrote:
Jeff Layman <Jeff@invalid.invalid> wrote:
On 16/03/2026 10:44, Trolleybus wrote:
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris
<ithinkiam@gmail.com>
That's not a great plan. Constantly charging the phone can
reduce its lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was
issued to me by BT for a trial of MMS in the fixed network. This
must have been about 2002-4. It's still working fine on the
original batteries!
I'm not surprised, but wouldn't that have been NiMH rather than
lithium?
Exactly. They normally have AAA batteries that can be replaced.
My home gigaset handsets are on their third set of batteries.
Changed last week most recently. YMMV.
Counter intuitively low capacity NiMh cells are better for DECT
cordless phones than high capacity ones. The low capacity ones are
much more tolerant of being left on continuous trickle charge.
On Mon, 16 Mar 2026 15:31:32 -0000 (UTC)
Tweed <usenet.tweed@gmail.com> wrote:
Chris <ithinkiam@gmail.com> wrote:
Jeff Layman <Jeff@invalid.invalid> wrote:
On 16/03/2026 10:44, Trolleybus wrote:
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris
<ithinkiam@gmail.com>
That's not a great plan. Constantly charging the phone can
reduce its lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was
issued to me by BT for a trial of MMS in the fixed network. This
must have been about 2002-4. It's still working fine on the
original batteries!
I'm not surprised, but wouldn't that have been NiMH rather than
lithium?
Exactly. They normally have AAA batteries that can be replaced.
My home gigaset handsets are on their third set of batteries.
Changed last week most recently. YMMV.
Counter intuitively low capacity NiMh cells are better for DECT
cordless phones than high capacity ones. The low capacity ones are
much more tolerant of being left on continuous trickle charge.
My two original Panasonic DECT handsets were still going strong after
about 10 years on their original batteries. I only replaced them when I bought two more handsets and just put new batteries in all of them.
On 15 Mar 2026 at 19:28:06 GMT, alan_m wrote:
On 15/03/2026 17:29, Chris wrote:
The Natural Philosopher <tnp@invalid.invalid> wrote:
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and >>>>> receiving constantly.
My phone is permanently plugged into this desktop except when I am out >>>> and about so its always on charge And it is always warm.
That's not a great plan. Constantly charging the phone can reduce its
lifespan significantly.
Many manufactures of phones and laptops recommend that you only charge
to 80% and incorporate inbuilt software to allow users to configure that
option. My Samsung phone has this feature and will report that "charging
has stopped to protect the battery"
For the Motorola 5G
https://www.youtube.com/watch?v=9p-3HMak2eU
The Apple stuff I've got all charge to 100% by default - and they've been doing that every day while still keeping within spec - 80% of battery capacity
after 1000 cycles.
Charging does tend to slow considerably after about 90%, though.
On 16/03/2026 07:28, Chris wrote:
RJH <patchmoney@gmx.com> wrote:
On 15 Mar 2026 at 19:28:06 GMT, alan_m wrote:
On 15/03/2026 17:29, Chris wrote:
The Natural Philosopher <tnp@invalid.invalid> wrote:
On 13/03/2026 13:28, Woody wrote:
The phone will usually get warm when it is in use, i.e.transmitting and >>>>>>> receiving constantly.
My phone is permanently plugged into this desktop except when I am out >>>>>> and about so its always on charge And it is always warm.
That's not a great plan. Constantly charging the phone can reduce its >>>>> lifespan significantly.
Many manufactures of phones and laptops recommend that you only charge >>>> to 80% and incorporate inbuilt software to allow users to configure that >>>> option. My Samsung phone has this feature and will report that "charging >>>> has stopped to protect the battery"
For the Motorola 5G
https://www.youtube.com/watch?v=9p-3HMak2eU
The Apple stuff I've got all charge to 100% by default
My mac regularly holds the charge at 80% for a while before going all the
way 100%.
It appears that different manufactures have different protection algorithms but a quick google for Apple stuff also shows the recommendation is 80% charging to extend the life of a lithium-ion-a battery.
The behaviour you describe is the Optimised Battery Charging that occurs when the charging limit is set to 100%. You may be able to change this.
https://support.apple.com/en-gb/108055
My phone has two options, stop charging at 80% or stop charging at 100% but don't keep topping up 100% unless the charge has fallen to a lower hysteresis threshold.-a If I turn off battery protection the charging control will try and maintain 100% charge all the time the charger is plugged in.
In uk.d-i-y RJH <patchmoney@gmx.com> wrote:
But what is meant by 100%? Battery capacity is a very woolly
The Apple stuff I've got all charge to 100% by default - and they've been
doing that every day while still keeping within spec - 80% of battery capacity
after 1000 cycles.
measurement anyway so the whole 'charge to 80% for longer life' thing
depends a lot on what it's 80% of.
Tweed <usenet.tweed@gmail.com> wrote:
Chris <ithinkiam@gmail.com> wrote:
Jeff Layman <Jeff@invalid.invalid> wrote:
On 16/03/2026 10:44, Trolleybus wrote:Exactly. They normally have AAA batteries that can be replaced.
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris <ithinkiam@gmail.com> >>>>I'm not surprised, but wouldn't that have been NiMH rather than lithium? >>>
That's not a great plan. Constantly charging the phone can reduce its >>>>>> lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was issued >>>>> to me by BT for a trial of MMS in the fixed network. This must have
been about 2002-4. It's still working fine on the original batteries! >>>>
My home gigaset handsets are on their third set of batteries. Changed last >>> week most recently. YMMV.
Counter intuitively low capacity NiMh cells are better for DECT cordless
phones than high capacity ones. The low capacity ones are much more
tolerant of being left on continuous trickle charge.
How low are we talking about? I've used 450 and 600 mAh cells. Currently using 900 mAh as that's what I had to hand. Lower ones are harder to find.
Chris <ithinkiam@gmail.com> wrote:
Tweed <usenet.tweed@gmail.com> wrote:
Chris <ithinkiam@gmail.com> wrote:
Jeff Layman <Jeff@invalid.invalid> wrote:
On 16/03/2026 10:44, Trolleybus wrote:Exactly. They normally have AAA batteries that can be replaced.
On Sun, 15 Mar 2026 17:29:14 -0000 (UTC), Chris <ithinkiam@gmail.com> >>>>I'm not surprised, but wouldn't that have been NiMH rather than lithium? >>>
That's not a great plan. Constantly charging the phone can reduce its >>>>>> lifespan significantly.
So it's claimed. There's a Siemens Gigaset on my desk that was issued >>>>> to me by BT for a trial of MMS in the fixed network. This must have >>>>> been about 2002-4. It's still working fine on the original batteries! >>>>
My home gigaset handsets are on their third set of batteries. Changed last
week most recently. YMMV.
Counter intuitively low capacity NiMh cells are better for DECT cordless >> phones than high capacity ones. The low capacity ones are much more
tolerant of being left on continuous trickle charge.
How low are we talking about? I've used 450 and 600 mAh cells. Currently using 900 mAh as that's what I had to hand. Lower ones are harder to find.
Presumably the lowest capacity you can easily find. I suppose low capacity cells are less tightly packed and can dissipate heat more easily from each layer.
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