From: J�rgen Exner on
sally <not(a)here.invalid> wrote:
>Are these good value or are they just cheap batteries that have much less
>capacity than the original?

The capacity of a battery is a key part of its specification and is
explicitely listed (e.g. mAh: 630mAh). Therefore the capacity of
different batteries is trivial to compare unless we are talking about
fraudulent statements.

jue
From: Mike on
J�rgen Exner wrote:
> sally <not(a)here.invalid> wrote:
>> Are these good value or are they just cheap batteries that have much less
>> capacity than the original?
>
> The capacity of a battery is a key part of its specification and is
> explicitely listed (e.g. mAh: 630mAh). Therefore the capacity of
> different batteries is trivial to compare unless we are talking about
> fraudulent statements.
>
> jue

The cheap knockoffs on ebay rarely live upto the billed capacity.

Mike
From: Kristian Kjerstad on

> Kristian Kjerstad wrote
>> Here's another one:
>> http://www.dealextreme.com/details.dx/sku.27950
>>
>> $4.59 ~ �2.85

>spacecadet wrote:
> The problem with Ebay is Chinese fakes even if they say 'UK despatch'.
> Check the feedback

Dealextreme isn't Ebay...

And about fakes: A battery meant to look like a original Casio battery is a
fake. How can a battery that clearly says it's not an original be a fake?
("Casio NP-20 Compatible", and "For Casio" and no Casio logo should ring a
bell)

--
Kristian Kjerstad


From: Chris Malcolm on
In rec.photo.digital Mike <mikeloveschampagneandrugby(a)googlemail.com> wrote:
> J?rgen Exner wrote:
>> sally <not(a)here.invalid> wrote:
>>> Are these good value or are they just cheap batteries that have much less
>>> capacity than the original?
>>
>> The capacity of a battery is a key part of its specification and is
>> explicitely listed (e.g. mAh: 630mAh). Therefore the capacity of
>> different batteries is trivial to compare unless we are talking about
>> fraudulent statements.
>>
>> jue

> The cheap knockoffs on ebay rarely live upto the billed capacity.

That's also true of many of the expensive originals!

I bought cheap ebay batteries for my phone. They were a third of the
price, and accurately advertised as having 50% more capacity. I also
got another set, much bigger, which came with an enlarged backplate to
accommodate the size. They corresponded to nothing the maker sold, and
gave me 4 times the capacity. They lasted a delightful month on a
single charge! No need to take a charger on holiday!

Incidentally the cheap Ebay knockoffs for my last camera advertised
themselves as having 10% more capacity, and they certainly lasted at
least as long as the maker's original.

--
Chris Malcolm
From: Mike on
Chris Malcolm wrote:
> In rec.photo.digital Mike <mikeloveschampagneandrugby(a)googlemail.com> wrote:
>> J?rgen Exner wrote:
>>> sally <not(a)here.invalid> wrote:
>>>> Are these good value or are they just cheap batteries that have much less
>>>> capacity than the original?
>>> The capacity of a battery is a key part of its specification and is
>>> explicitely listed (e.g. mAh: 630mAh). Therefore the capacity of
>>> different batteries is trivial to compare unless we are talking about
>>> fraudulent statements.
>>>
>>> jue
>
>> The cheap knockoffs on ebay rarely live upto the billed capacity.
>
> That's also true of many of the expensive originals!
>
> I bought cheap ebay batteries for my phone. They were a third of the
> price, and accurately advertised as having 50% more capacity. I also
> got another set, much bigger, which came with an enlarged backplate to
> accommodate the size. They corresponded to nothing the maker sold, and
> gave me 4 times the capacity. They lasted a delightful month on a
> single charge! No need to take a charger on holiday!
>
> Incidentally the cheap Ebay knockoffs for my last camera advertised
> themselves as having 10% more capacity, and they certainly lasted at
> least as long as the maker's original.

Like I said; rarely! With no way of accurately measuring the capacity I
assume the original (sony or whatever) battery capacity is correct.

I've bought batteries for PDA, several different types of phone and
cameras from eBay. All advertised the same or higher capacity, only a
couple actually lived up to that promise based on day to day use. TBH I
expect that and provided the performance is not abysmal I accept it as a
cost saving measure.

I have been pleasantly surprised with the NP-FM500H I got off eBay which
seems to hold pretty close to the original. I tend to swap them over as
I charge and even after a month in my bag it still delivers similar
performance to the Sony original.

Mike