xkcd: Battery Life
https://xkcd.com/2680/

Yeah, at some point getting a bigger battery really sucks. I do have
two of the laptop batteries in cell phone chargers for conventions.
They work ok and hold about 4X the power of a regular cell phone battery.

Explained at:
https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life

Lynn

On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
> xkcd: Battery Life
> https://xkcd.com/2680/
>
> Yeah, at some point getting a bigger battery really sucks. I do have
> two of the laptop batteries in cell phone chargers for conventions.
> They work ok and hold about 4X the power of a regular cell phone battery.
>
> Explained at:
> https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life

When I was growing up, if you told me the amount of time I now spend
thinking about the State Of Charge of various rechargeable batteries,
I'd have called you a liar.

House (I have Powerwalls on order)
Car
Phone
iPad
Laptop
Watch
Earbuds

....and that just the stuff used frequently.

Pt

On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
> On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
> > xkcd: Battery Life
> > https://xkcd.com/2680/
> >
> > Yeah, at some point getting a bigger battery really sucks. I do have
> > two of the laptop batteries in cell phone chargers for conventions.
> > They work ok and hold about 4X the power of a regular cell phone battery.
> >
> > Explained at:
> > https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
> When I was growing up, if you told me the amount of time I now spend
> thinking about the State Of Charge of various rechargeable batteries,
> I'd have called you a liar.
>
> House (I have Powerwalls on order)
> Car
> Phone
> iPad
> Laptop
> Watch
> Earbuds
>
> ...and that just the stuff used frequently.

I suppose you can charge up a lot of the things from the
other things.

My observation: I can charge my oldish phone from a
pocket-sized "powerbank", if I remember to charge that.
But if I don't unplug the power bank then, it will keep
running... until empty... and then the phone battery starts
quickly running down.

So why is it called a smart phone?

On 10/5/2022 6:43 PM, Robert Carnegie wrote:
> On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
>> On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
>>> xkcd: Battery Life
>>> https://xkcd.com/2680/
>>>
>>> Yeah, at some point getting a bigger battery really sucks. I do have
>>> two of the laptop batteries in cell phone chargers for conventions.
>>> They work ok and hold about 4X the power of a regular cell phone battery.
>>>
>>> Explained at:
>>> https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
>> When I was growing up, if you told me the amount of time I now spend
>> thinking about the State Of Charge of various rechargeable batteries,
>> I'd have called you a liar.
>>
>> House (I have Powerwalls on order)
>> Car
>> Phone
>> iPad
>> Laptop
>> Watch
>> Earbuds
>>
>> ...and that just the stuff used frequently.
>
> I suppose you can charge up a lot of the things from the
> other things.
>
> My observation: I can charge my oldish phone from a
> pocket-sized "powerbank", if I remember to charge that.
> But if I don't unplug the power bank then, it will keep
> running... until empty... and then the phone battery starts
> quickly running down.
>
> So why is it called a smart phone?

Because it is more capable than many of the people who use them. :P

--
I've done good in this world. Now I'm tired and just want to be a cranky
dirty old man.

On 10/5/2022 7:55 PM, pete...@gmail.com wrote:
> On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
>> xkcd: Battery Life
>> https://xkcd.com/2680/
>>
>> Yeah, at some point getting a bigger battery really sucks. I do have
>> two of the laptop batteries in cell phone chargers for conventions.
>> They work ok and hold about 4X the power of a regular cell phone battery.
>>
>> Explained at:
>> https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
>
> When I was growing up, if you told me the amount of time I now spend
> thinking about the State Of Charge of various rechargeable batteries,
> I'd have called you a liar.
>
> House (I have Powerwalls on order)
> Car
> Phone
> iPad
> Laptop
> Watch
> Earbuds
>
> ...and that just the stuff used frequently.
>
> Pt

I almost bought five Powerwalls and a 25 kW solar system for my house in
2021 for $65,000. Instead, I bought a 38 kW natural gas generator for
$25,000 installed. Much cheaper but I would have gotten free
electricity with the solar system. I am still paying 11 cents/kwh for
electricity but my new contract in February will probably be 16 cents/kwh.

Lynn

On Thursday, October 6, 2022 at 3:08:42 PM UTC-4, Lynn McGuire wrote:
> On 10/5/2022 7:55 PM, pete...@gmail.com wrote:
> > On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
> >> xkcd: Battery Life
> >> https://xkcd.com/2680/
> >>
> >> Yeah, at some point getting a bigger battery really sucks. I do have
> >> two of the laptop batteries in cell phone chargers for conventions.
> >> They work ok and hold about 4X the power of a regular cell phone battery.
> >>
> >> Explained at:
> >> https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
> >
> > When I was growing up, if you told me the amount of time I now spend
> > thinking about the State Of Charge of various rechargeable batteries,
> > I'd have called you a liar.
> >
> > House (I have Powerwalls on order)
> > Car
> > Phone
> > iPad
> > Laptop
> > Watch
> > Earbuds
> >
> > ...and that just the stuff used frequently.
> >
> > Pt
> I almost bought five Powerwalls and a 25 kW solar system for my house in
> 2021 for $65,000. Instead, I bought a 38 kW natural gas generator for
> $25,000 installed. Much cheaper but I would have gotten free
> electricity with the solar system. I am still paying 11 cents/kwh for
> electricity but my new contract in February will probably be 16 cents/kwh.

I'm only getting two - it will let me run my house for about a day, longer if
I conserve power. They're expensive.

My wife is heavy into 'reduce carbon footprint'. I can't complain; its why I
was able to talk her into our buying a Tesla car. We also have heatpumps,
and are now adding solar and batteries.

[I tried to get Tesla solar tiles a couple years ago. That had to be abandoned
for [long story].]

One part of the system allows the utility to use some of my storage as a
unit in a 'Virtual Power Plant', essentially turning thousands of consumer
powerwalls into a distributed peaker power plant, replacing gas turbine
peakers. I get a check each time that happens.

On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
> On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
> > On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
> > > xkcd: Battery Life
> > > https://xkcd.com/2680/
> > >
> > > Yeah, at some point getting a bigger battery really sucks. I do have
> > > two of the laptop batteries in cell phone chargers for conventions.
> > > They work ok and hold about 4X the power of a regular cell phone battery.
> > >
> > > Explained at:
> > > https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
> > When I was growing up, if you told me the amount of time I now spend
> > thinking about the State Of Charge of various rechargeable batteries,
> > I'd have called you a liar.
> >
> > House (I have Powerwalls on order)
> > Car
> > Phone
> > iPad
> > Laptop
> > Watch
> > Earbuds
> >
> > ...and that just the stuff used frequently.
> I suppose you can charge up a lot of the things from the
> other things.

I have had a little trouble getting two things to charge each other at the same time. Perhaps I am using the wrong devices?

In article <ae99eb3b-605e-45c3-a04c-5cb3d2539716n@googlegroups.com>,
artyw2@yahoo.com <artyw2@yahoo.com> wrote:
>On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
>> On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
>> > On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
>> > > xkcd: Battery Life
>> > > https://xkcd.com/2680/
>> > >
>> > > Yeah, at some point getting a bigger battery really sucks. I do have
>> > > two of the laptop batteries in cell phone chargers for conventions.
>> > > They work ok and hold about 4X the power of a regular cell phone battery.
>> > >
>> > > Explained at:
>> > > https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
>> > When I was growing up, if you told me the amount of time I now spend
>> > thinking about the State Of Charge of various rechargeable batteries,
>> > I'd have called you a liar.
>> >
>> > House (I have Powerwalls on order)
>> > Car
>> > Phone
>> > iPad
>> > Laptop
>> > Watch
>> > Earbuds
>> >
>> > ...and that just the stuff used frequently.
>> I suppose you can charge up a lot of the things from the
>> other things.
>
>I have had a little trouble getting two things to charge each other at
>the same time. Perhaps I am using the wrong devices?

(Hal Heydt)
Your devices are just fine. You're using them in the wrong
universe.

On Friday, October 7, 2022 at 2:51:50 PM UTC-6, Dorothy J Heydt wrote:
> In article <ae99eb3b-605e-45c3...@googlegroups.com>,
> art...@yahoo.com <art...@yahoo.com> wrote:
> >On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
> >> On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
> >> > On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
> >> > > xkcd: Battery Life
> >> > > https://xkcd.com/2680/
> >> > >
> >> > > Yeah, at some point getting a bigger battery really sucks. I do have
> >> > > two of the laptop batteries in cell phone chargers for conventions.
> >> > > They work ok and hold about 4X the power of a regular cell phone battery.
> >> > >
> >> > > Explained at:
> >> > > https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
> >> > When I was growing up, if you told me the amount of time I now spend
> >> > thinking about the State Of Charge of various rechargeable batteries,
> >> > I'd have called you a liar.
> >> >
> >> > House (I have Powerwalls on order)
> >> > Car
> >> > Phone
> >> > iPad
> >> > Laptop
> >> > Watch
> >> > Earbuds
> >> >
> >> > ...and that just the stuff used frequently.
> >> I suppose you can charge up a lot of the things from the
> >> other things.
> >
> >I have had a little trouble getting two things to charge each other at
> >the same time. Perhaps I am using the wrong devices?
> (Hal Heydt)
> Your devices are just fine. You're using them in the wrong
> universe.

Is there a universe in which the laws of thermodynamics are just suggestions? (Maybe in SF?)

"artyw2@yahoo.com" <artyw2@yahoo.com> writes:
>On Friday, October 7, 2022 at 2:51:50 PM UTC-6, Dorothy J Heydt wrote:
>> In article <ae99eb3b-605e-45c3...@googlegroups.com>,
>> art...@yahoo.com <art...@yahoo.com> wrote:
>> >On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
>> >> On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
>> >> > On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
>> >> > > xkcd: Battery Life
>> >> > > https://xkcd.com/2680/
>> >> > >
>> >> > > Yeah, at some point getting a bigger battery really sucks. I do have
>> >> > > two of the laptop batteries in cell phone chargers for conventions.
>> >> > > They work ok and hold about 4X the power of a regular cell phone battery.
>> >> > >
>> >> > > Explained at:
>> >> > > https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
>> >> > When I was growing up, if you told me the amount of time I now spend
>> >> > thinking about the State Of Charge of various rechargeable batteries,
>> >> > I'd have called you a liar.
>> >> >
>> >> > House (I have Powerwalls on order)
>> >> > Car
>> >> > Phone
>> >> > iPad
>> >> > Laptop
>> >> > Watch
>> >> > Earbuds
>> >> >
>> >> > ...and that just the stuff used frequently.
>> >> I suppose you can charge up a lot of the things from the
>> >> other things.
>> >
>> >I have had a little trouble getting two things to charge each other at
>> >the same time. Perhaps I am using the wrong devices?
>> (Hal Heydt)
>> Your devices are just fine. You're using them in the wrong
>> universe.
>
>Is there a universe in which the laws of thermodynamics are just suggestions? (Maybe in SF?)

Any one that supports Magic?

On 10/7/2022 3:18 PM, artyw2@yahoo.com wrote:
> On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
>> On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
>>> On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
>>>> xkcd: Battery Life
>>>> https://xkcd.com/2680/
>>>>
>>>> Yeah, at some point getting a bigger battery really sucks. I do have
>>>> two of the laptop batteries in cell phone chargers for conventions.
>>>> They work ok and hold about 4X the power of a regular cell phone battery.
>>>>
>>>> Explained at:
>>>> https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
>>> When I was growing up, if you told me the amount of time I now spend
>>> thinking about the State Of Charge of various rechargeable batteries,
>>> I'd have called you a liar.
>>>
>>> House (I have Powerwalls on order)
>>> Car
>>> Phone
>>> iPad
>>> Laptop
>>> Watch
>>> Earbuds
>>>
>>> ...and that just the stuff used frequently.
>> I suppose you can charge up a lot of the things from the
>> other things.
>
> I have had a little trouble getting two things to charge each other at the same time. Perhaps I am using the wrong devices?

You need that special bidirectional cable.

On Friday, 7 October 2022 at 21:18:36 UTC+1, artyw2@yahoo.com wrote:
> On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
> > On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
> > > On Wednesday, October 5, 2022 at 2:58:08 PM UTC-4, Lynn McGuire wrote:
> > > > xkcd: Battery Life
> > > > https://xkcd.com/2680/
> > > >
> > > > Yeah, at some point getting a bigger battery really sucks. I do have
> > > > two of the laptop batteries in cell phone chargers for conventions.
> > > > They work ok and hold about 4X the power of a regular cell phone battery.
> > > >
> > > > Explained at:
> > > > https://www.explainxkcd.com/wiki/index.php/2680:_Battery_Life
> > > When I was growing up, if you told me the amount of time I now spend
> > > thinking about the State Of Charge of various rechargeable batteries,
> > > I'd have called you a liar.
> > >
> > > House (I have Powerwalls on order)
> > > Car
> > > Phone
> > > iPad
> > > Laptop
> > > Watch
> > > Earbuds
> > >
> > > ...and that just the stuff used frequently.
> > I suppose you can charge up a lot of the things from the
> > other things.
> I have had a little trouble getting two things to charge each other at the same time. Perhaps I am using the wrong devices?

I explained I can get two of my things to un-charge
each other.

Another time, due to various problems coinciding,
I've taken advantage of a bus service with USB charging
ports on board for equipment of patrons, to charge one
small personal "powerbank" - while my phone was charging
from another "powerbank".

Robert Carnegie wrote:
> On Friday, 7 October 2022 at 21:18:36 UTC+1, art...@yahoo.com wrote:
> > On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
> > > On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:

> > > > When I was growing up, if you told me the amount of time I now spend
> > > > thinking about the State Of Charge of various rechargeable batteries,
> > > > I'd have called you a liar.
> > > >
> > > > House (I have Powerwalls on order)
> > > > Car
> > > > Phone
> > > > iPad
> > > > Laptop
> > > > Watch
> > > > Earbuds
> > > >
> > > > ...and that just the stuff used frequently.
> > > I suppose you can charge up a lot of the things from the
> > > other things.
> > I have had a little trouble getting two things to charge each other at the same time. Perhaps I am using the wrong devices?
> I explained I can get two of my things to un-charge
> each other.
>
> Another time, due to various problems coinciding,
> I've taken advantage of a bus service with USB charging
> ports on board for equipment of patrons, to charge one
> small personal "powerbank" - while my phone was charging
> from another "powerbank".

My powerbank has a USB-C connection, which carries charge either in or out, a USB-A connection which is says is for out only, and a USB mini connection which is only for power in. I suppose with the proper cord I could plug it into itself and see what it does. The powerbank means I don't have to worry about the State Of Charge of my phone, my bone-conduction headset, or my old phone, which is the MP3 player I carry around at work while my phone is in my locker incommunicado, saving battery. (On home wi-fi my old phone is also my world's smallest tablet device.)

My brother appointed me tech support for the fitness watch and tablet he gave our mom, so I charge those up on a semi-regular basis, also her cell phone and digital camera when she needs them.

--
-Jack

On Sat, 8 Oct 2022 07:37:58 -0700 (PDT), Jack Bohn
<jack.bohn64@gmail.com> wrote:

>Robert Carnegie wrote:
>> On Friday, 7 October 2022 at 21:18:36 UTC+1, art...@yahoo.com wrote:
>> > On Wednesday, October 5, 2022 at 9:43:19 PM UTC-4, Robert Carnegie wrote:
>> > > On Thursday, 6 October 2022 at 01:55:16 UTC+1, pete...@gmail.com wrote:
>
>> > > > When I was growing up, if you told me the amount of time I now spend
>> > > > thinking about the State Of Charge of various rechargeable batteries,
>> > > > I'd have called you a liar.
>> > > >
>> > > > House (I have Powerwalls on order)
>> > > > Car
>> > > > Phone
>> > > > iPad
>> > > > Laptop
>> > > > Watch
>> > > > Earbuds
>> > > >
>> > > > ...and that just the stuff used frequently.
>> > > I suppose you can charge up a lot of the things from the
>> > > other things.
>> > I have had a little trouble getting two things to charge each other at the same time. Perhaps I am using the wrong devices?
>> I explained I can get two of my things to un-charge
>> each other.
>>
>> Another time, due to various problems coinciding,
>> I've taken advantage of a bus service with USB charging
>> ports on board for equipment of patrons, to charge one
>> small personal "powerbank" - while my phone was charging
>> from another "powerbank".
>
>My powerbank has a USB-C connection, which carries charge either in or out, a USB-A connection which is says is for out only, and a USB mini connection which is only for power in. I suppose with the proper cord I could plug it into itself and see what it does. The powerbank means I don't have to worry about the State Of Charge of my phone, my bone-conduction headset, or my old phone, which is the MP3 player I carry around at work while my phone is in my locker incommunicado, saving battery. (On home wi-fi my old phone is also my world's smallest tablet device.)

As to the special A/B cable:

might be an interesting thing to do

might not want to be nearby when you try it, though

and trying it in a container unlikely to catch on fire might be a good
idea

>My brother appointed me tech support for the fitness watch and tablet he gave our mom, so I charge those up on a semi-regular basis, also her cell phone and digital camera when she needs them.
--
"In this connexion, unquestionably the most significant
development was the disintegration, under Christian
influence, of classical conceptions of the family and
of family right."