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lithium polymer

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Anonymous
July 31, 2005 4:34:59 PM

Archived from groups: rec.photo.digital (More info?)

Hi,

I got a small no-frill 3 megapixels DSC-334 digital camera with a built-in
lithium-polymer battery. Owner's manual says it could take hundred of
pictures on a full charge because of its low power CMOS imager.
I just got the camera yesterday, recharged it and I could only take about 65
photos. Flash always off, auto-switch off set to one minute.

Do I have to deplete the battery a couple of times (and recharge it of
course) to get it to full capacity. I believe this is the way with Ni-Cad or
Ni-Mh but what about lithium-polymer?

M.S.

More about : lithium polymer

Anonymous
July 31, 2005 7:37:22 PM

Archived from groups: rec.photo.digital (More info?)

On Sun, 31 Jul 2005 12:34:59 -0400, in rec.photo.digital "M. Smile"
<msmile9@yahoo.com> wrote:

>I got a small no-frill 3 megapixels DSC-334 digital camera with a built-in
>lithium-polymer battery. Owner's manual says it could take hundred of
>pictures on a full charge because of its low power CMOS imager.
>I just got the camera yesterday, recharged it and I could only take about 65
>photos. Flash always off, auto-switch off set to one minute.

Is the camera set to continuously auto focus? If so this is a large power
drain. I would then recommend setting to single AF where you would then
focus by half pressing the shutter button.
----------
Ed Ruf Lifetime AMA# 344007 (Usenet@EdwardG.Ruf.com)
See images taken with my CP-990/5700 & D70 at
http://edwardgruf.com/Digital_Photography/General/index...
Anonymous
July 31, 2005 8:32:53 PM

Archived from groups: rec.photo.digital (More info?)

"Ed Ruf" <egruf_usenet@cox.net> wrote in message
news:h3aqe19ps0tp3bmgvpqkhdicvcfoo06n6h@4ax.com...
> On Sun, 31 Jul 2005 12:34:59 -0400, in rec.photo.digital "M. Smile"
> <msmile9@yahoo.com> wrote:
>
>>I got a small no-frill 3 megapixels DSC-334 digital camera with a built-in
>>lithium-polymer battery. Owner's manual says it could take hundred of
>>pictures on a full charge because of its low power CMOS imager.
>>I just got the camera yesterday, recharged it and I could only take about
>>65
>>photos. Flash always off, auto-switch off set to one minute.
>
> Is the camera set to continuously auto focus? If so this is a large power
> drain. I would then recommend setting to single AF where you would then
> focus by half pressing the shutter button.

This is a P&S fixed focus camera.
The only things I can turn off is the flash (no need to keep its capacitor
charged when not needed) and its 1.5" LCD.
I don't know if such a small LCD can drain that much power to make a
difference.

M.S.
Related resources
Anonymous
July 31, 2005 9:13:32 PM

Archived from groups: rec.photo.digital (More info?)

On Sun, 31 Jul 2005 16:32:53 -0400, M. Smile wrote:

>>> I got a small no-frill 3 megapixels DSC-334 digital camera with a built-in
>>> lithium-polymer battery. Owner's manual says it could take hundred of
>>> pictures on a full charge because of its low power CMOS imager.
>>> I just got the camera yesterday, recharged it and I could only take about
>>>65 photos. Flash always off, auto-switch off set to one minute.
>>
>> Is the camera set to continuously auto focus? If so this is a large power
>> drain. I would then recommend setting to single AF where you would then
>> focus by half pressing the shutter button.

> This is a P&S fixed focus camera.
> The only things I can turn off is the flash (no need to keep its capacitor
> charged when not needed) and its 1.5" LCD.
> I don't know if such a small LCD can drain that much power to make a
> difference.

LCD displays use a *lot* of battery power, even small ones.
You're better off keeping it disabled unless you really want to
review pictures. Then you should be able to take more than 100
pictures. Your wording wasn't clear. Did the manual say "a hundred
pictures" or "hundreds of pictures"? Either way, off the display.
Anonymous
July 31, 2005 9:31:11 PM

Archived from groups: rec.photo.digital (More info?)

"ASAAR" <caught@22.com> wrote in message
news:rdfqe19c07u4m9jppjdrmfdkjrgrd5ji8v@4ax.com...
> On Sun, 31 Jul 2005 16:32:53 -0400, M. Smile wrote:
>
>>>> I got a small no-frill 3 megapixels DSC-334 digital camera with a
>>>> built-in
>>>> lithium-polymer battery. Owner's manual says it could take hundred of
>>>> pictures on a full charge because of its low power CMOS imager.
>>>> I just got the camera yesterday, recharged it and I could only take
>>>> about
>>>>65 photos. Flash always off, auto-switch off set to one minute.
>>>
>>> Is the camera set to continuously auto focus? If so this is a large
>>> power
>>> drain. I would then recommend setting to single AF where you would then
>>> focus by half pressing the shutter button.
>
>> This is a P&S fixed focus camera.
>> The only things I can turn off is the flash (no need to keep its
>> capacitor
>> charged when not needed) and its 1.5" LCD.
>> I don't know if such a small LCD can drain that much power to make a
>> difference.
>
> LCD displays use a *lot* of battery power, even small ones.
> You're better off keeping it disabled unless you really want to
> review pictures. Then you should be able to take more than 100
> pictures. Your wording wasn't clear. Did the manual say "a hundred
> pictures" or "hundreds of pictures"? Either way, off the display.

This is a more precise source for the stuff under the hood. They say 180
photos with the LCD and strobe (flash) 100% use. Mmmmh!

http://www.smalcamera.com/up5lcd.html
Anonymous
July 31, 2005 9:31:12 PM

Archived from groups: rec.photo.digital (More info?)

On Sun, 31 Jul 2005 17:31:11 -0400, "M. Smile" <msmile9@yahoo.com>
wrote:

>
>"ASAAR" <caught@22.com> wrote in message
>news:rdfqe19c07u4m9jppjdrmfdkjrgrd5ji8v@4ax.com...
>> On Sun, 31 Jul 2005 16:32:53 -0400, M. Smile wrote:
>>
>>>>> I got a small no-frill 3 megapixels DSC-334 digital camera with a
>>>>> built-in
>>>>> lithium-polymer battery. Owner's manual says it could take hundred of
>>>>> pictures on a full charge because of its low power CMOS imager.
>>>>> I just got the camera yesterday, recharged it and I could only take
>>>>> about
>>>>>65 photos. Flash always off, auto-switch off set to one minute.
>>>>
>>>> Is the camera set to continuously auto focus? If so this is a large
>>>> power
>>>> drain. I would then recommend setting to single AF where you would then
>>>> focus by half pressing the shutter button.
>>
>>> This is a P&S fixed focus camera.
>>> The only things I can turn off is the flash (no need to keep its
>>> capacitor
>>> charged when not needed) and its 1.5" LCD.
>>> I don't know if such a small LCD can drain that much power to make a
>>> difference.
>>
>> LCD displays use a *lot* of battery power, even small ones.
>> You're better off keeping it disabled unless you really want to
>> review pictures. Then you should be able to take more than 100
>> pictures. Your wording wasn't clear. Did the manual say "a hundred
>> pictures" or "hundreds of pictures"? Either way, off the display.
>
>This is a more precise source for the stuff under the hood. They say 180
>photos with the LCD and strobe (flash) 100% use. Mmmmh!
>
>http://www.smalcamera.com/up5lcd.html
>
Sony, being the designer/manufacturer of the camera, will know a lot
more about this camera than they will tell us.
One of those things is the exact use that will provide the most shots
per charge.
As was already pointed out, they will advertise an optimal number,
based not on typical use, but on optimal use, and squeezing the
absolutely maximum number of shots, including waiting after the camera
stops to let the battery rest, and then getting more.
Their methods will not be the way a normal user would use, but they
make for good advertising.

As for letting the batteries 'work in' for a few cycles, I don't know
about that particular type.
In any case, I wouldn't expect to get the advertised maximum out of
anything I bought.

--
Bill Funk
replace "g" with "a"
funktionality.blogspot.com
Anonymous
July 31, 2005 11:08:34 PM

Archived from groups: rec.photo.digital (More info?)

"M. Smile" <msmile9@yahoo.com> schreef in bericht news:R47He.5119$Dw5.105050@weber.videotron.net...
> Hi,
>
> I got a small no-frill 3 megapixels DSC-334 digital camera with a built-in
> lithium-polymer battery. Owner's manual says it could take hundred of
> pictures on a full charge because of its low power CMOS imager.
> I just got the camera yesterday, recharged it and I could only take about 65
> photos. Flash always off, auto-switch off set to one minute.
>
Claims of manifacturers and actual mileage often varies.
The manifacturer will make a claim for the optimal circumstances
for the battery power. They know what those circumstances are,
sometimes they are even mentioned in the manual.

I think that the auto-switch off on one minute and taking the pictures
more than a minute apart is far from optimal. Switching of the camera
immediatly after taking the picture, or making the pictures at a certain
time difference (for example every 7.3453987 seconds) might be an
optimal circumstance.
(Also reducing of the focusing, saving in a minimum format might
make that you can take more pictures on a single load, it might also
depend on the memory card.).

ben brugman


> Do I have to deplete the battery a couple of times (and recharge it of
> course) to get it to full capacity. I believe this is the way with Ni-Cad or
> Ni-Mh but what about lithium-polymer?
>
> M.S.
>
>
Anonymous
July 31, 2005 11:08:35 PM

Archived from groups: rec.photo.digital (More info?)

"Ben Brugman" <Ben@niethier.nl> wrote in message
news:jr-dnfsu1tBBnnDfRVnyig@casema.nl...
>
> "M. Smile" <msmile9@yahoo.com> schreef in bericht
> news:R47He.5119$Dw5.105050@weber.videotron.net...
>> Hi,
>>
>> I got a small no-frill 3 megapixels DSC-334 digital camera with a
>> built-in
>> lithium-polymer battery. Owner's manual says it could take hundred of
>> pictures on a full charge because of its low power CMOS imager.
>> I just got the camera yesterday, recharged it and I could only take about
>> 65
>> photos. Flash always off, auto-switch off set to one minute.
>>
> Claims of manifacturers and actual mileage often varies.
> The manifacturer will make a claim for the optimal circumstances
> for the battery power. They know what those circumstances are,
> sometimes they are even mentioned in the manual.
>
> I think that the auto-switch off on one minute and taking the pictures
> more than a minute apart is far from optimal. Switching of the camera
> immediatly after taking the picture, or making the pictures at a certain
> time difference (for example every 7.3453987 seconds) might be an
> optimal circumstance.
> (Also reducing of the focusing, saving in a minimum format might
> make that you can take more pictures on a single load, it might also
> depend on the memory card.).
>
> ben brugman
>
>
>> Do I have to deplete the battery a couple of times (and recharge it of
>> course) to get it to full capacity. I believe this is the way with Ni-Cad
>> or
>> Ni-Mh but what about lithium-polymer?
>>

Mmmh! 7.3453987 seconds?
I can only go up to four significative digits whatever time difference is
optimal. Sorry I can't keep up with this! ;) 

But seriously, you got two points here: the picture format and turning off
manually the camera after taking a picture.
I agree that the minimal format would probably increase the battery life and
the manufacturer probably did his "tests" with that format.

Still! How about the battery recharge cycle (for a new camera)?
Anonymous
August 1, 2005 4:03:38 PM

Archived from groups: rec.photo.digital (More info?)

>>>Do I have to deplete the battery a couple of times (and recharge it of
>>>course) to get it to full capacity. I believe this is the way with Ni-Cad
>>>or
>>>Ni-Mh but what about lithium-polymer?
>>>
>
>
> Mmmh! 7.3453987 seconds?
> I can only go up to four significative digits whatever time difference is
> optimal. Sorry I can't keep up with this! ;) 
>
> But seriously, you got two points here: the picture format and turning off
> manually the camera after taking a picture.
> I agree that the minimal format would probably increase the battery life and
> the manufacturer probably did his "tests" with that format.

FWIW, there does exist several industry "standards" for determining
battery life. Of course the standard that each camera manufacturer
follows is up to them, or they ay decide to develop their own method.

The standards are listed here:

http://www.i3a.org/pdf/DigitalCameraBatteryStandards.pd...

The one most relevant appears to be the CIPA standard, which has a test
procedure that actually involves using the camera (setting and resetting
zoom, taking 10 or so frames with the flash, powering off, powering back
on, resetting the zoom, etc.), as opposed to other stadards hich focus
on testing battery life by applying simulated current draws. As cameras
and batteries differ, CIAP seems to be the closest to providing some
"real world" data.

> Still! How about the battery recharge cycle (for a new camera)?

The jury seems to be out on LiIon. Most people say you need to
completely harge the battery, then almost deplete the battery, then
recharge again, to get the best performance, and then afterwards it
doesn't matter. Others say it doesn't matter, ever. I've done both on
varying models of LiION batteries (cell phone, laptop and digital
camera) and haven't really noticed a difference either way.



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