The are essentially a little battery but they utilize classic
electrolytic capacior chemistry however due to their extremely dense
charge/volume they have exceedingly high internal resistance.
I don't know that it's fair to call them a battery. A battery has
a nonlinear
PM
To: Pentax-Discuss Mail List
Subject: RE: about NiMH batteries (was: aliasing/moire)
On Thu, 25 Jan 2007, J. C. O'Connell wrote:
If I am not mistake, NIMH batteries all have
appox the same internal resistance and its very
low compared to Nicad for example. specifically
what kind
On Jan 25, 2007, at 19:09, Paul Stenquist wrote:
I can't see using NIMH in my D, but I do use them in my flash. The D
sits too long. I'd be charging the batteries every time I used it.
One word - I've said it before and I'll say it again: Eneloop!
-Charles
--
Charles Robinson
[EMAIL
On Jan 26, 2007, at 6:33 AM, Charles Robinson wrote:
One word - I've said it before and I'll say it again: Eneloop!
I have three sets of AA NiMH rechargables, two Power2000 and one 'no
name brand, and now that I'm standardizing more and more on the K10D
body I doubt I need many more for
?? Is it only 1.1VDC or not?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Cory Papenfuss
Sent: Friday, January 26, 2007 8:24 AM
To: Pentax-Discuss Mail List
Subject: RE: about NiMH batteries (was: aliasing/moire)
I dont understand what you are saying
it sounds to me that you are the one a little confused
here not me. i.e. a 2000mAH battery stores twice the
energy of a 1000mH battery when fully charged.( Assuming
same battery voltage - which I did because thats all
were were talking about was one battery ).
I'm not talking nominal
Anyway the one in my camera does not work correctly.
Cory Papenfuss wrote:
The are essentially a little battery but they utilize classic
electrolytic capacior chemistry however due to their extremely dense
charge/volume they have exceedingly high internal resistance.
I don't know that
Hi Cory,
I've got some 2150 NiMH batteries that absolutely suck. I've got
a LaCrosse BC-900 charger that can charge/discharge them and measure the
actual capacity... not too far from advertised.
That said, they rarely last more than 50-100 shots on my -DS. I
think that some
Hi Godfrey,
Colorspace settings are only applied to the JPEG output (thumbnails,
embedded previews, full capture format as desired, etc) after RAW
conversion. If you are capturing in JPEG format and need the least
amount of channel clipping for further editing, Adobe RGB is the way
off brand off shore made rechargable batteries are
infamous for overstating the capacity. The usa FTC
cant go after them I guess or just dont care to.
I think the best way is to test your batteries
in a systematic way but dont forget that most of
them take about 10 cycles or so to get up to
off brand off shore made rechargable batteries are
infamous for overstating the capacity. The usa FTC
cant go after them I guess or just dont care to.
I think the best way is to test your batteries
in a systematic way but dont forget that most of
them take about 10 cycles or so to get up to
the
charge is nearly gone regardless of load...
jco
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Cory Papenfuss
Sent: Thursday, January 25, 2007 5:26 PM
To: Pentax-Discuss Mail List
Subject: RE: about NiMH batteries (was: aliasing/moire)
off brand off
On Thu, 25 Jan 2007, J. C. O'Connell wrote:
If I am not mistake, NIMH batteries all have
appox the same internal resistance and its very
low compared to Nicad for example. specifically
what kind of load are you draining them at and what
is the output voltage of the cells under that load?
On Jan 25, 2007, at 1:56 PM, Peter Lacus wrote:
then for me it's probably better to choose sRGB, because the only
occasion I might want to shoot JPEGs is the need of printing
immediately
after shooting.
That's what I do. I usually set the colorspace to ProPhoto RGB during
RAW conversion
On 26/01/07, Cory Papenfuss [EMAIL PROTECTED] wrote:
Bottom line: Cheap cells illustrate a higher internal impedance
than higher quality cells... even at the same mAH rating. That means they
don't last as long before the camera thinks they're dead.
Absolutely and it seems that even
On 26/01/07, Godfrey DiGiorgi [EMAIL PROTECTED] wrote:
That's what I do ... No battery maintenance required, just replace
when exhausted. For my last trip to the UK, I carried four sets of AA
Lithium disposables and had a fresh set in the body. After 1600
exposures, I had only just replaced
, January 25, 2007 6:50 PM
To: Pentax-Discuss Mail List
Subject: RE: about NiMH batteries (was: aliasing/moire)
On Thu, 25 Jan 2007, J. C. O'Connell wrote:
If I am not mistake, NIMH batteries all have
appox the same internal resistance and its very
low compared to Nicad for example. specifically
On Jan 25, 2007, at 4:21 PM, Digital Image Studio wrote:
A pack of eight Eneloop 2100mAh cells costs me less than a set of
eight AA
Lithium disposables here.
A pack of four 2400 mAh NiMH cells costs about US$11, a pack of four
AA Li disposables about $9, but with the latter ... when
On 26/01/07, Godfrey DiGiorgi [EMAIL PROTECTED] wrote:
A pack of four 2400 mAh NiMH cells costs about US$11, a pack of four
AA Li disposables about $9, but with the latter ... when
traveling ... I don't have to carry a charger, plug adapter, or
whatever. Two sets of the AA Li disposable is
I can't see using NIMH in my D, but I do use them in my flash. The D
sits too long. I'd be charging the batteries every time I used it. The
flash, on the other hand, will burn through four batteries of any type
in short order. So the NIMH seem to be a good choice for that. I once
bought a
??? How can they have lower internal resistance and longer shelf life?
That seems contradictory to me.
Is the difference in self-discharge for the Eneloops over standard NiMH
as much as they claim? I have been wondering about that for awhile, I
have several NiMH setting around doing nothing
That coincides with my experience. If used in something with a fairly
low relatively steady drain the lithium work best, in high intermittent
drain situations like a flash the rechargeable are best. And of course
fresh lithium have a 10 year shelf life, compared to about a month for
standard
On 26/01/07, graywolf [EMAIL PROTECTED] wrote:
??? How can they have lower internal resistance and longer shelf life?
That seems contradictory to me.
The shelf life/self discharge is likely lower due to improved
construction and materials. The cells internal resistance is a
function of how
On 26/01/07, Digital Image Studio [EMAIL PROTECTED] wrote:
I'll try that again...
The shelf life/self discharge rate of Eneloop cells is likely lower due to
improved
construction and materials. The cells internal resistance is a
function of how their chemistry interacts with the electrodes,
24 matches
Mail list logo
