Tablet battery question

On 3/13/2014, Metspitzer posted:
On Thu, 13 Mar 2014 14:19:06 -0500, BillW50 wrote:

Dell Latitude Slate Tablet

BTW I noticed your tag line. My tablet is a 7" I got it free with
credit card points. I really like a tablet better than a laptop, but
I like a desktop much better than either of those choices. I also
think I like Android better than Windows (Heresy) for a tablet, but I
have never used a Windows tablet.

I don't think it's heresy :-)

....

--
Gene E. Bloch (Stumbling Bloch)

On 3/13/2014, Metspitzer posted:
On Thu, 13 Mar 2014 14:19:06 -0500, BillW50 wrote:

On 3/13/2014 1:46 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 13:25:53 -0500, BillW50
wrote:

On 3/13/2014 1:03 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 17:01:59 +0000, Roger Mills
wrote:

On 12/03/2014 22:04, Metspitzer wrote:
I only use my tablet about 15 min at night before bed. If I
put it in sleep mode, it will remember the book I am reading
and the page I am on, but it uses about 5% of the battery.

If I turn it off completely, it doesn't seem to use any battery
at all, but I have to reselect the book I am reading (It does
remember the page number). (I know that the battery will drain
anyway but it takes a long time)

I am pretty sure the answer to this question is because it cost
more, but couldn't laptops and tablets store "place marks" on
the same technology as thumb drives? I also understand the
programs that are much more complicated than a book reader
would take much more storage, but I think in the case of a
bookmark, this would be pretty cheap.


Turn off everything you don't need overnight which might consume
battery energy - WiFi, Bluetooth, GPS (if it's got one). With
those things turned on, it will be frequently looking for
updates to Apps, looking for other Bluetooth devices to pair
with, and trying to work out where in the world it is.

Others have mentioned Airplane mode - which will turn off at
least some of those things. If it doesn't turn them *all* off,
go into settings and do it manually.

[A better newsgroup in which to ask would have been
comp.mobile.android]

Thanks for the newgroup link. There are so many dead news groups
I have quit trying to find new newsgroups. That one seems
active.

You know while I knew and have a great deal about Ni-Cads, NiMH,
Lithium, and lead acid batteries than I care to really know. And I
can make Lithium batteries last over 10 years easy.

Although the last few years I have realized just making them last
as long as you can might be counter productive. So now I am
weighing how long vs. how much use you get out of them. For
example, making batteries last longer than most people would
believe possible isn't very useful if you never actually use the
battery for power anyway. And who cares how long it lasts, really?

Now your tablet most likely use a Lithium battery. And say the
worst case that I have experience with is using one and draining
it down to 0% each day. I would expect getting about 6 months out
of it before it becomes worthless. Most people are not that hard
on them and of course would last much longer.

Now you are worried about losing 5% in standby mode. I dunno, per
day is my guess. Well you should easily beat that 6 month before
it is worthless. Although you should make two to four years easy
at that rate.

Now I don't know what a replacement battery for yours cost. But if
it is like 10 to 20 bucks, well I think it is well worth it, don't
you?

The main reason I want to save battery life is so I don't have to
screw with charging it.

BTW I do turn off WiFi, Bluetooth, GPS.

They sell battery packs that replaces changing of devices that use
USB to change with. That would keep it recharged if not near a
charger. These battery packs can be recharged. I don't know if
yours can recharge from USB, some do and some doesn't.

I have one actually. It is not too handy to use in bed. I do plan
on using it next time I am in the hospital. I also carry it to
doctor's visits.

http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO

Tempting (very tempting!), but we have light weight units from Motorola
that are sufficient to make a phone call or two in an em emergency.

I did have two doctors visits one day that were spaced a long time
apart and different buildings (different parking decks). Since the
time between visits was so long, I went shopping for a little while
and then parked in a McDonalds parking lot to use their WiFi. (and
the battery pack)

I sat in the parking lot for around 2 hours. I did manage to drain
my car battery listing to the radio. Lucky I also keep one of these
in the trunk.

http://www.ebay.com/itm/Black-Decker...-/201048453465

Here's a thought: you can get a USB charger that plugs into your car's
power outlet[1] that can power and charge your tablet (but be careful
about the car battery, as you said).

And the car starter unit has a power outlet too, so you can use it with
the USB item to charge your tablet (but don't use too much of the
emergency energy either).

One example out of 180,000 hits[2] on eBay:

http://www.ebay.com/itm/Car-Charger-...item43c2ee5e49

AKA http://tinyurl.com/l3bojom

[1] What used to be called the cigarette lighter or cigar lighter plug

[2] I didn't check all 180,000 to make sure they're the right stuff.
Many come with cables, usually for Apple products, but they work with
regular micro-USB cables too.

--
Gene E. Bloch (Stumbling Bloch)

On Thu, 13 Mar 2014 16:58:11 -0700, Gene E. Bloch
wrote:

On 3/13/2014, Metspitzer posted:
On Thu, 13 Mar 2014 14:19:06 -0500, BillW50 wrote:

On 3/13/2014 1:46 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 13:25:53 -0500, BillW50
wrote:

On 3/13/2014 1:03 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 17:01:59 +0000, Roger Mills
wrote:

On 12/03/2014 22:04, Metspitzer wrote:
I only use my tablet about 15 min at night before bed. If I
put it in sleep mode, it will remember the book I am reading
and the page I am on, but it uses about 5% of the battery.

If I turn it off completely, it doesn't seem to use any battery
at all, but I have to reselect the book I am reading (It does
remember the page number). (I know that the battery will drain
anyway but it takes a long time)

I am pretty sure the answer to this question is because it cost
more, but couldn't laptops and tablets store "place marks" on
the same technology as thumb drives? I also understand the
programs that are much more complicated than a book reader
would take much more storage, but I think in the case of a
bookmark, this would be pretty cheap.


Turn off everything you don't need overnight which might consume
battery energy - WiFi, Bluetooth, GPS (if it's got one). With
those things turned on, it will be frequently looking for
updates to Apps, looking for other Bluetooth devices to pair
with, and trying to work out where in the world it is.

Others have mentioned Airplane mode - which will turn off at
least some of those things. If it doesn't turn them *all* off,
go into settings and do it manually.

[A better newsgroup in which to ask would have been
comp.mobile.android]

Thanks for the newgroup link. There are so many dead news groups
I have quit trying to find new newsgroups. That one seems
active.

You know while I knew and have a great deal about Ni-Cads, NiMH,
Lithium, and lead acid batteries than I care to really know. And I
can make Lithium batteries last over 10 years easy.

Although the last few years I have realized just making them last
as long as you can might be counter productive. So now I am
weighing how long vs. how much use you get out of them. For
example, making batteries last longer than most people would
believe possible isn't very useful if you never actually use the
battery for power anyway. And who cares how long it lasts, really?

Now your tablet most likely use a Lithium battery. And say the
worst case that I have experience with is using one and draining
it down to 0% each day. I would expect getting about 6 months out
of it before it becomes worthless. Most people are not that hard
on them and of course would last much longer.

Now you are worried about losing 5% in standby mode. I dunno, per
day is my guess. Well you should easily beat that 6 month before
it is worthless. Although you should make two to four years easy
at that rate.

Now I don't know what a replacement battery for yours cost. But if
it is like 10 to 20 bucks, well I think it is well worth it, don't
you?

The main reason I want to save battery life is so I don't have to
screw with charging it.

BTW I do turn off WiFi, Bluetooth, GPS.

They sell battery packs that replaces changing of devices that use
USB to change with. That would keep it recharged if not near a
charger. These battery packs can be recharged. I don't know if
yours can recharge from USB, some do and some doesn't.

I have one actually. It is not too handy to use in bed. I do plan
on using it next time I am in the hospital. I also carry it to
doctor's visits.

http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO

Tempting (very tempting!), but we have light weight units from Motorola
that are sufficient to make a phone call or two in an em emergency.

I did have two doctors visits one day that were spaced a long time
apart and different buildings (different parking decks). Since the
time between visits was so long, I went shopping for a little while
and then parked in a McDonalds parking lot to use their WiFi. (and
the battery pack)

I sat in the parking lot for around 2 hours. I did manage to drain
my car battery listing to the radio. Lucky I also keep one of these
in the trunk.

http://www.ebay.com/itm/Black-Decker...-/201048453465

Here's a thought: you can get a USB charger that plugs into your car's
power outlet[1] that can power and charge your tablet (but be careful
about the car battery, as you said).

And the car starter unit has a power outlet too, so you can use it with
the USB item to charge your tablet (but don't use too much of the
emergency energy either).

One example out of 180,000 hits[2] on eBay:

http://www.ebay.com/itm/Car-Charger-...item43c2ee5e49

AKA http://tinyurl.com/l3bojom

[1] What used to be called the cigarette lighter or cigar lighter plug

[2] I didn't check all 180,000 to make sure they're the right stuff.
Many come with cables, usually for Apple products, but they work with
regular micro-USB cables too.

When I was looking at a car for my nephew in 2010 the sticker said the
car had an mp3 player. I mistakenly thought mp3 player was a radio
feature that would play music from a thumb drive. I asked the dealer
where the opening was to plug it in when we were test driving the car.
He said.........it is in the glove box or the trunk somewhere. I
bought the car. We are still looking for the place to plug in the
thumb drive. He got me didn't he?

There doesn't seem to be a need for a car cigarette lighter any more,
but playing mp3s and charging phones should make a couple of USB slots
a standard feature.

Maybe the dealers are aware that it kills the battery.

On Thu, 13 Mar 2014 21:22:44 -0400, Metspitzer
wrote:

On Thu, 13 Mar 2014 16:58:11 -0700, Gene E. Bloch
wrote:

On 3/13/2014, Metspitzer posted:
On Thu, 13 Mar 2014 14:19:06 -0500, BillW50 wrote:

On 3/13/2014 1:46 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 13:25:53 -0500, BillW50
wrote:

On 3/13/2014 1:03 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 17:01:59 +0000, Roger Mills
wrote:

On 12/03/2014 22:04, Metspitzer wrote:
I only use my tablet about 15 min at night before bed. If I
put it in sleep mode, it will remember the book I am reading
and the page I am on, but it uses about 5% of the battery.

If I turn it off completely, it doesn't seem to use any battery
at all, but I have to reselect the book I am reading (It does
remember the page number). (I know that the battery will drain
anyway but it takes a long time)

I am pretty sure the answer to this question is because it cost
more, but couldn't laptops and tablets store "place marks" on
the same technology as thumb drives? I also understand the
programs that are much more complicated than a book reader
would take much more storage, but I think in the case of a
bookmark, this would be pretty cheap.


Turn off everything you don't need overnight which might consume
battery energy - WiFi, Bluetooth, GPS (if it's got one). With
those things turned on, it will be frequently looking for
updates to Apps, looking for other Bluetooth devices to pair
with, and trying to work out where in the world it is.

Others have mentioned Airplane mode - which will turn off at
least some of those things. If it doesn't turn them *all* off,
go into settings and do it manually.

[A better newsgroup in which to ask would have been
comp.mobile.android]

Thanks for the newgroup link. There are so many dead news groups
I have quit trying to find new newsgroups. That one seems
active.

You know while I knew and have a great deal about Ni-Cads, NiMH,
Lithium, and lead acid batteries than I care to really know. And I
can make Lithium batteries last over 10 years easy.

Although the last few years I have realized just making them last
as long as you can might be counter productive. So now I am
weighing how long vs. how much use you get out of them. For
example, making batteries last longer than most people would
believe possible isn't very useful if you never actually use the
battery for power anyway. And who cares how long it lasts, really?

Now your tablet most likely use a Lithium battery. And say the
worst case that I have experience with is using one and draining
it down to 0% each day. I would expect getting about 6 months out
of it before it becomes worthless. Most people are not that hard
on them and of course would last much longer.

Now you are worried about losing 5% in standby mode. I dunno, per
day is my guess. Well you should easily beat that 6 month before
it is worthless. Although you should make two to four years easy
at that rate.

Now I don't know what a replacement battery for yours cost. But if
it is like 10 to 20 bucks, well I think it is well worth it, don't
you?

The main reason I want to save battery life is so I don't have to
screw with charging it.

BTW I do turn off WiFi, Bluetooth, GPS.

They sell battery packs that replaces changing of devices that use
USB to change with. That would keep it recharged if not near a
charger. These battery packs can be recharged. I don't know if
yours can recharge from USB, some do and some doesn't.

I have one actually. It is not too handy to use in bed. I do plan
on using it next time I am in the hospital. I also carry it to
doctor's visits.

http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO

Tempting (very tempting!), but we have light weight units from Motorola
that are sufficient to make a phone call or two in an em emergency.

I did have two doctors visits one day that were spaced a long time
apart and different buildings (different parking decks). Since the
time between visits was so long, I went shopping for a little while
and then parked in a McDonalds parking lot to use their WiFi. (and
the battery pack)

I sat in the parking lot for around 2 hours. I did manage to drain
my car battery listing to the radio. Lucky I also keep one of these
in the trunk.

http://www.ebay.com/itm/Black-Decker...-/201048453465

Here's a thought: you can get a USB charger that plugs into your car's
power outlet[1] that can power and charge your tablet (but be careful
about the car battery, as you said).

And the car starter unit has a power outlet too, so you can use it with
the USB item to charge your tablet (but don't use too much of the
emergency energy either).

One example out of 180,000 hits[2] on eBay:

http://www.ebay.com/itm/Car-Charger-...item43c2ee5e49

AKA http://tinyurl.com/l3bojom

[1] What used to be called the cigarette lighter or cigar lighter plug

[2] I didn't check all 180,000 to make sure they're the right stuff.
Many come with cables, usually for Apple products, but they work with
regular micro-USB cables too.

When I was looking at a car for my nephew in 2010 the sticker said the
car had an mp3 player. I mistakenly thought mp3 player was a radio
feature that would play music from a thumb drive. I asked the dealer
where the opening was to plug it in when we were test driving the car.
He said.........it is in the glove box or the trunk somewhere. I
bought the car. We are still looking for the place to plug in the
thumb drive. He got me didn't he?

There doesn't seem to be a need for a car cigarette lighter any more,
but playing mp3s and charging phones should make a couple of USB slots
a standard feature.

Maybe the dealers are aware that it kills the battery.

Really you would think that even toasters would come standard with a
couple of USB slots today.

"Gene E. Bloch" wrote in message
...
On 3/13/2014, Metspitzer posted:
On Thu, 13 Mar 2014 14:19:06 -0500, BillW50 wrote:

On 3/13/2014 1:46 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 13:25:53 -0500, BillW50 wrote:

On 3/13/2014 1:03 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 17:01:59 +0000, Roger Mills
wrote:

On 12/03/2014 22:04, Metspitzer wrote:
I only use my tablet about 15 min at night before bed. If I put it
in sleep mode, it will remember the book I am reading and the page
I am on, but it uses about 5% of the battery.

If I turn it off completely, it doesn't seem to use any battery at
all, but I have to reselect the book I am reading (It does remember
the page number). (I know that the battery will drain anyway but
it takes a long time)

I am pretty sure the answer to this question is because it cost
more, but couldn't laptops and tablets store "place marks" on the
same technology as thumb drives? I also understand the programs
that are much more complicated than a book reader would take much
more storage, but I think in the case of a bookmark, this would be
pretty cheap.


Turn off everything you don't need overnight which might consume
battery energy - WiFi, Bluetooth, GPS (if it's got one). With those
things turned on, it will be frequently looking for updates to Apps,
looking for other Bluetooth devices to pair with, and trying to work
out where in the world it is.

Others have mentioned Airplane mode - which will turn off at least
some of those things. If it doesn't turn them *all* off, go into
settings and do it manually.

[A better newsgroup in which to ask would have been
comp.mobile.android]

Thanks for the newgroup link. There are so many dead news groups I
have quit trying to find new newsgroups. That one seems active.

You know while I knew and have a great deal about Ni-Cads, NiMH,
Lithium, and lead acid batteries than I care to really know. And I can
make Lithium batteries last over 10 years easy.

Although the last few years I have realized just making them last as
long as you can might be counter productive. So now I am weighing how
long vs. how much use you get out of them. For example, making
batteries last longer than most people would believe possible isn't
very useful if you never actually use the battery for power anyway.
And who cares how long it lasts, really?

Now your tablet most likely use a Lithium battery. And say the worst
case that I have experience with is using one and draining it down to
0% each day. I would expect getting about 6 months out of it before it
becomes worthless. Most people are not that hard on them and of course
would last much longer.

Now you are worried about losing 5% in standby mode. I dunno, per day
is my guess. Well you should easily beat that 6 month before it is
worthless. Although you should make two to four years easy at that
rate.

Now I don't know what a replacement battery for yours cost. But if it
is like 10 to 20 bucks, well I think it is well worth it, don't you?

The main reason I want to save battery life is so I don't have to
screw with charging it.

BTW I do turn off WiFi, Bluetooth, GPS.

They sell battery packs that replaces changing of devices that use USB
to change with. That would keep it recharged if not near a charger.
These battery packs can be recharged. I don't know if yours can recharge
from USB, some do and some doesn't.

I have one actually. It is not too handy to use in bed. I do plan on
using it next time I am in the hospital. I also carry it to doctor's
visits.

http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO

Tempting (very tempting!), but we have light weight units from Motorola
that are sufficient to make a phone call or two in an em emergency.

I did have two doctors visits one day that were spaced a long time
apart and different buildings (different parking decks). Since the
time between visits was so long, I went shopping for a little while
and then parked in a McDonalds parking lot to use their WiFi. (and
the battery pack)

I sat in the parking lot for around 2 hours. I did manage to drain my
car battery listing to the radio. Lucky I also keep one of these in the
trunk.

http://www.ebay.com/itm/Black-Decker...-/201048453465

Here's a thought: you can get a USB charger that plugs into your car's
power outlet[1] that can power and charge your tablet (but be careful
about the car battery, as you said).

And the car starter unit has a power outlet too, so you can use it with
the USB item to charge your tablet (but don't use too much of the
emergency energy either).

One example out of 180,000 hits[2] on eBay:

http://www.ebay.com/itm/Car-Charger-...item43c2ee5e49

AKA http://tinyurl.com/l3bojom

[1] What used to be called the cigarette lighter or cigar lighter plug

[2] I didn't check all 180,000 to make sure they're the right stuff. Many
come with cables, usually for Apple products, but they work with regular
micro-USB cables too.


[1] isn't totally accurate. Power points in most vehicles are fused at 15A.,
while a cigar lighter is fused at 40A. While the sockets may be the same,
the load-bearing certainly isn't :-) A rental I used a few years ago had
both; the power point had a cover over it, I guess to prevent accidentally
putting the lighter (or small inquiring fingers) in it.
--
SC Tom

On Wed, 12 Mar 2014 19:32:27 -0700, Gene E. Bloch
wrote:

Android provides ways to save "stuff"[1] for later restoration when a
program changes state. snip

[1] In quotes to indicate that there's a rather broad range of items
under that rubric.

All I know about rubric is the famous cube. I used to be pretty good with it
back in the day. ;-)

--

Char Jackson

On Wed, 12 Mar 2014 19:32:27 -0700, Gene E. Bloch wrote:
Android provides ways to save "stuff"[1] for later restoration when a
program changes state. All we need is a signal saying "gonna power down
the device: do what you need". I don't know that there is such a
signal. I *do* know that Android tells the program when you rotate the
device. If you don't save most variables then, they are lost after that
rotation, since it stops the program, and then restarts it in the new
orientation.

Really? When I rotate my Kindle Fire HDX there is no perceptible
pause in the app. That's not saying you're necessarily incorrect,
but there _is_ a perceptible short pause when I start an app.



--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com
Shikata ga nai...

On Wed, 12 Mar 2014 23:22:00 -0400, Metspitzer wrote:
Actually it may be hibernate. I am not really sure what the
difference between sleep and hibernate is.


http://windows.microsoft.com/en-us/w...d-hibernation-
frequently-asked-questions

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com
Shikata ga nai...

On Thu, 13 Mar 2014 16:58:11 -0700, Gene E. Bloch wrote:
On 3/13/2014, Metspitzer posted:

http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO

Tempting (very tempting!), but we have light weight units from Motorola
that are sufficient to make a phone call or two in an em emergency.

I looked at this, and apparently the company has quality control
problems. Several reviewers mentioned getting a bad unit, though the
company did replace it.

Also the battery capacity is 8800 mAh, not 10000 as stated. (Someone
opened a unit up and looked at the battery pack.)

I think I want to get an external battery pack for my Kindle Fire HDX
7", but I don't think this is it.


--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com
Shikata ga nai...

"Stan Brown" wrote in message
t...
On Thu, 13 Mar 2014 16:58:11 -0700, Gene E. Bloch wrote:
On 3/13/2014, Metspitzer posted:

http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO

Tempting (very tempting!), but we have light weight units from Motorola
that are sufficient to make a phone call or two in an em emergency.

I looked at this, and apparently the company has quality control
problems. Several reviewers mentioned getting a bad unit, though the
company did replace it.

Also the battery capacity is 8800 mAh, not 10000 as stated. (Someone
opened a unit up and looked at the battery pack.)

I think I want to get an external battery pack for my Kindle Fire HDX
7", but I don't think this is it.


I bought this bad boy for use with my 10" tablet:

http://www.amazon.com/gp/product/B00FDK2G2C/ref=oh_details_o09_s00_i00?ie=UTF8&psc=1

I had a 12000mAH one before, but it wouldn't keep up. All it did was slow
down the rate of discharge of the internal battery. With this one, though,
the battery will either stay steady when using the tablet heavily (like Real
Racing 3 and Words with Friends running at the same time), or it will be
slowly charged while doing email or crossword puzzles. With the tablet
asleep, this pack will charge it in about an hour if the tablet's battery is
~25%. I also purchased a 5' "charge only" USB cable, and that actually
worked better than a regular USB data cable. The cable included with the
battery pack works fine, but it's only 28" long; with the 5' one, I can
leave the pack on the table or nightstand and still be able to sit in the
chair to use the tablet without the battery being in my lap, or lie in bed
and read before going to sleep.
--
SC Tom

SC Tom wrote:


"Stan Brown" wrote in message
t...
On Thu, 13 Mar 2014 16:58:11 -0700, Gene E. Bloch wrote:
On 3/13/2014, Metspitzer posted:


http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO


Tempting (very tempting!), but we have light weight units from Motorola
that are sufficient to make a phone call or two in an em emergency.

I looked at this, and apparently the company has quality control
problems. Several reviewers mentioned getting a bad unit, though the
company did replace it.

Also the battery capacity is 8800 mAh, not 10000 as stated. (Someone
opened a unit up and looked at the battery pack.)

I think I want to get an external battery pack for my Kindle Fire HDX
7", but I don't think this is it.


I bought this bad boy for use with my 10" tablet:

http://www.amazon.com/gp/product/B00FDK2G2C/ref=oh_details_o09_s00_i00?ie=UTF8&psc=1


I had a 12000mAH one before, but it wouldn't keep up. All it did was
slow down the rate of discharge of the internal battery. With this one,
though, the battery will either stay steady when using the tablet
heavily (like Real Racing 3 and Words with Friends running at the same
time), or it will be slowly charged while doing email or crossword
puzzles. With the tablet asleep, this pack will charge it in about an
hour if the tablet's battery is ~25%. I also purchased a 5' "charge
only" USB cable, and that actually worked better than a regular USB data
cable. The cable included with the battery pack works fine, but it's
only 28" long; with the 5' one, I can leave the pack on the table or
nightstand and still be able to sit in the chair to use the tablet
without the battery being in my lap, or lie in bed and read before going
to sleep.

The only warning I'd have about those things, is don't leave
it "baking on your car seat". While it is portable, and you
might be tempted to take it in the car, you might want to
remove it from the car if leaving the car in the hot sun.

Paul

On 3/13/2014, Char Jackson posted:
On Wed, 12 Mar 2014 19:32:27 -0700, Gene E. Bloch
wrote:

Android provides ways to save "stuff"[1] for later restoration when
a program changes state. snip

[1] In quotes to indicate that there's a rather broad range of items
under that rubric.

All I know about rubric is the famous cube. I used to be pretty good
with it back in the day. ;-)

I am puzzled by that remark :-)

I probably wasn't the worst Rubric Cuber in the world, but I put on a
pretty good show.

Just for fun, I tried the correct spelling; this spell checker was
puzzled by it, as were a couple of others I tried for fun, but MS Word
2003 offered to capitalize the R (which I hadn't done).

Just a touch of OCD, I guess :-)

--
Gene E. Bloch (Stumbling Bloch)

On 3/14/2014, Stan Brown posted:
On Wed, 12 Mar 2014 19:32:27 -0700, Gene E. Bloch wrote:
Android provides ways to save "stuff"[1] for later restoration when
a program changes state. All we need is a signal saying "gonna
power down the device: do what you need". I don't know that there
is such a signal. I *do* know that Android tells the program when
you rotate the device. If you don't save most variables then, they
are lost after that rotation, since it stops the program, and then
restarts it in the new orientation.

Really? When I rotate my Kindle Fire HDX there is no perceptible
pause in the app. That's not saying you're necessarily incorrect,
but there _is_ a perceptible short pause when I start an app.

I didn't say there was a perceptible pause, only that the program is
stopped and restarted :-)

And the reason I know the above is that I've written a few little
programs for myself in which I allowed for screen rotation. Let me tell
you, it's a bit of a chore to get it right.

BTW, in the emulator, the pause is more noticeable.

On any program I tried on my phone (Motorola Razr), not just my stuff,
there is a pause of maybe a second before the rotation, but no
discernible gap between the two views. I tried it because of your post,
obviously :-)

I suspect the pause is intentional, as the visual equivalent of a shock
absorber.

--
Gene E. Bloch (Stumbling Bloch)

On 3/14/2014, Stan Brown posted:
On Wed, 12 Mar 2014 23:22:00 -0400, Metspitzer wrote:
Actually it may be hibernate. I am not really sure what the
difference between sleep and hibernate is.


http://windows.microsoft.com/en-us/w...d-hibernation-
frequently-asked-questions

From that (broken, in my newsreader) link, I see that what I explained
above for hibernation is actually hybrid sleep. Hibernation is without
power, hybrid sleep is with power.

--
Gene E. Bloch (Stumbling Bloch)

On 3/13/2014, Metspitzer posted:
On Thu, 13 Mar 2014 21:22:44 -0400, Metspitzer
wrote:

On Thu, 13 Mar 2014 16:58:11 -0700, Gene E. Bloch
wrote:

On 3/13/2014, Metspitzer posted:
On Thu, 13 Mar 2014 14:19:06 -0500, BillW50
wrote:
On 3/13/2014 1:46 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 13:25:53 -0500, BillW50
wrote:

On 3/13/2014 1:03 PM, Metspitzer wrote:
On Thu, 13 Mar 2014 17:01:59 +0000, Roger Mills
wrote:

On 12/03/2014 22:04, Metspitzer wrote:
I only use my tablet about 15 min at night before bed. If I
put it in sleep mode, it will remember the book I am reading
and the page I am on, but it uses about 5% of the battery.

If I turn it off completely, it doesn't seem to use any
battery at all, but I have to reselect the book I am
reading (It does remember the page number). (I know that
the battery will drain anyway but it takes a long time)

I am pretty sure the answer to this question is because it
cost more, but couldn't laptops and tablets store "place
marks" on the same technology as thumb drives? I also
understand the programs that are much more complicated than
a book reader would take much more storage, but I think in
the case of a bookmark, this would be pretty cheap.


Turn off everything you don't need overnight which might
consume battery energy - WiFi, Bluetooth, GPS (if it's got
one). With those things turned on, it will be frequently
looking for updates to Apps, looking for other Bluetooth
devices to pair with, and trying to work out where in the
world it is.

Others have mentioned Airplane mode - which will turn off at
least some of those things. If it doesn't turn them *all*
off, go into settings and do it manually.

[A better newsgroup in which to ask would have been
comp.mobile.android]

Thanks for the newgroup link. There are so many dead news
groups I have quit trying to find new newsgroups. That one
seems active.

You know while I knew and have a great deal about Ni-Cads,
NiMH, Lithium, and lead acid batteries than I care to really
know. And I can make Lithium batteries last over 10 years
easy.

Although the last few years I have realized just making them
last as long as you can might be counter productive. So now I
am weighing how long vs. how much use you get out of them. For
example, making batteries last longer than most people would
believe possible isn't very useful if you never actually use
the battery for power anyway. And who cares how long it lasts,
really?

Now your tablet most likely use a Lithium battery. And say the
worst case that I have experience with is using one and
draining it down to 0% each day. I would expect getting about
6 months out of it before it becomes worthless. Most people
are not that hard on them and of course would last much
longer.

Now you are worried about losing 5% in standby mode. I dunno,
per day is my guess. Well you should easily beat that 6 month
before it is worthless. Although you should make two to four
years easy at that rate.

Now I don't know what a replacement battery for yours cost. But
if it is like 10 to 20 bucks, well I think it is well worth
it, don't you?

The main reason I want to save battery life is so I don't have
to screw with charging it.

BTW I do turn off WiFi, Bluetooth, GPS.

They sell battery packs that replaces changing of devices that
use USB to change with. That would keep it recharged if not
near a charger. These battery packs can be recharged. I don't
know if yours can recharge from USB, some do and some doesn't.
I have one actually. It is not too handy to use in bed. I do
plan on using it next time I am in the hospital. I also carry it
to doctor's visits.

http://www.amazon.com/Maxboost-Elect.../dp/B00C13YSIO

Tempting (very tempting!), but we have light weight units from
Motorola that are sufficient to make a phone call or two in an em
emergency.

I did have two doctors visits one day that were spaced a long time
apart and different buildings (different parking decks). Since
the time between visits was so long, I went shopping for a little
while and then parked in a McDonalds parking lot to use their
WiFi. (and the battery pack)

I sat in the parking lot for around 2 hours. I did manage to
drain my car battery listing to the radio. Lucky I also keep one
of these in the trunk.

http://www.ebay.com/itm/Black-Decker...-/201048453465

Here's a thought: you can get a USB charger that plugs into your
car's power outlet[1] that can power and charge your tablet (but
be careful about the car battery, as you said).

And the car starter unit has a power outlet too, so you can use it
with the USB item to charge your tablet (but don't use too much of
the emergency energy either).

One example out of 180,000 hits[2] on eBay:

http://www.ebay.com/itm/Car-Charger-...item43c2ee5e49

AKA http://tinyurl.com/l3bojom

[1] What used to be called the cigarette lighter or cigar lighter
plug

[2] I didn't check all 180,000 to make sure they're the right
stuff. Many come with cables, usually for Apple products, but they
work with regular micro-USB cables too.

When I was looking at a car for my nephew in 2010 the sticker said
the car had an mp3 player. I mistakenly thought mp3 player was a
radio feature that would play music from a thumb drive. I asked the
dealer where the opening was to plug it in when we were test driving
the car. He said.........it is in the glove box or the trunk
somewhere. I bought the car. We are still looking for the place to
plug in the thumb drive. He got me didn't he?

There doesn't seem to be a need for a car cigarette lighter any
more, but playing mp3s and charging phones should make a couple of
USB slots a standard feature.

Maybe the dealers are aware that it kills the battery.

Really you would think that even toasters would come standard with a
couple of USB slots today.

True enough...

We should wait and see what the Google toaster or the Nest toaster
looks like...

:-)

--
Gene E. Bloch (Stumbling Bloch)