Batteries that fit

How important is battery type to a digital camera?
We have two, supplied new with
Fuji Li-Ion battery type NP-45 = 3.7v at 740mAh
GE Li-ion battery Model DS5370 = 3.7v at 700mAh

Should these be interchangeable i.e. usable in
either camera?
--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)

"Don Phillipson" wrote:
How important is battery type to a digital camera?
We have two, supplied new with
Fuji Li-Ion battery type NP-45 = 3.7v at 740mAh
GE Li-ion battery Model DS5370 = 3.7v at 700mAh

Should these be interchangeable i.e. usable in
either camera?

Most likely they have different form factors and thus will not fit
physically into the other camera in the first place.
If they do then other critical items to match are voltage (is the same
in your case), power contacts and polarity (you will have to check
visually, and any other additional characteristics like e.g. a charge
sensor or a thermo-probe contact for quick loading or or or....

Capacity is the one thing that can be different without causing any
harm.

jue

On Sun, 19 Jul 2009 15:13:44 -0400, Don Phillipson wrote:

How important is battery type to a digital camera? We have two, supplied
new with
Fuji Li-Ion battery type NP-45 = 3.7v at 740mAh GE Li-ion battery Model
DS5370 = 3.7v at 700mAh

Should these be interchangeable i.e. usable in either camera?

As long as they fit.

Don Phillipson wrote:
How important is battery type to a digital camera?
We have two, supplied new with
Fuji Li-Ion battery type NP-45 = 3.7v at 740mAh
GE Li-ion battery Model DS5370 = 3.7v at 700mAh

Should these be interchangeable i.e. usable in
either camera?

740mAh vs 700mAh says how long they will hold a charge, not much
difference in this case. If these are AA you probably don't want to mix
them.

On Sat, 25 Jul 2009 15:10:50 -0700, Paul Furman
wrote:


740mAh vs 700mAh says how long they will hold a charge, not much
difference in this case. If these are AA you probably don't want to mix
them.

Poor choice of words, I think. This is really the charge capacity of
the battery.

Paul Furman wrote:
740mAh vs 700mAh says how long they will hold a charge,

s/how long/how much/

The way you phrased this could be misunderstood as if the capacity
(measured in Ah) was related to the self discharge rate.

jue

Jürgen Exner wrote:
Paul Furman wrote:
740mAh vs 700mAh says how long they will hold a charge,

s/how long/how much/

The way you phrased this could be misunderstood as if the capacity
(measured in Ah) was related to the self discharge rate.

I'm no expert but isn't the basic idea how much use you get? I'm just
basing this on some replacement cell phone batteries I got with 1/3 less
mAh and they held charge about 1/3 less.

--
Paul Furman
www.edgehill.net
www.baynatives.com

all google groups messages filtered due to spam

Paul Furman wrote:
Jürgen Exner wrote:
Paul Furman wrote:
740mAh vs 700mAh says how long they will hold a charge,

s/how long/how much/

The way you phrased this could be misunderstood as if the capacity
(measured in Ah) was related to the self discharge rate.

I'm no expert but isn't the basic idea how much use you get? I'm just
basing this on some replacement cell phone batteries I got with 1/3 less
mAh and they held charge about 1/3 less.

Well, I suppose you could say a car with a 1/3 smaller tank is holding
fuel 1/3 shorter (as in useable driving time). I'd rather think of it as
holding 1/3 less fuel (as in volume).

jue

On Sun, 26 Jul 2009 09:39:19 -0700, Paul Furman wrote:

740mAh vs 700mAh says how long they will hold a charge,

s/how long/how much/

The way you phrased this could be misunderstood as if the capacity
(measured in Ah) was related to the self discharge rate.

I'm no expert but isn't the basic idea how much use you get? I'm just
basing this on some replacement cell phone batteries I got with 1/3 less
mAh and they held charge about 1/3 less.

You're not using the terminology the way most of us do. When
people talk about how well batteries hold a charge they mean how
long the battery will hold a charge when the camera is powered off
or the battery is sitting on a shelf, and this can be greatly
affected by temperature. We all should have understood that this
wasn't what you actually meant since the discussion was about Li-Ion
batteries, which unlike NiMH batteries (which include standard and
low self-discharge types), tend to have similar "hold a charge"
properties. Most people would say that your replacement cell phone
batteries had 1/3 less capacity, not 1/3 less charge. The words are
interrelated though, since the charger that charges the battery to
it's full capacity, does it with a particular charge rate, and you
can speak of batteries being fully charged, half charged, etc., but
again, when you speak of how long a battery can hold a charge, most
people will immediately think of weeks or months, not minutes or
hours, if ya know what I mean.

What had me more puzzled than any of the discussion of charge,
though, was when you mentioned AAs in your reply to the OP. Did you
miss a cup or two of coffee?

How important is battery type to a digital camera?
We have two, supplied new with
Fuji Li-Ion battery type NP-45 = 3.7v at 740mAh
GE Li-ion battery Model DS5370 = 3.7v at 700mAh

Should these be interchangeable i.e. usable in
either camera?

740mAh vs 700mAh says how long they will hold a charge, not much
difference in this case. If these are AA you probably don't want to mix
them.

ASAAR wrote:

What had me more puzzled than any of the discussion of charge,
though, was when you mentioned AAs in your reply to the OP. Did you
miss a cup or two of coffee?

I can't tell what shape the batteries discussed are g and it seemed
obvious that they were some sort of standard shape, not a proprietary
shape like I'm accustomed to, so maybe AAs shrug. Obviously I'm not
familiar with the type being discussed but google does show AA Li-Ion
batteries. I guess the missing coffee is in the idea that one battery
could power a camera g.
http://images.google.com/images?hl=e...ery+type+NP-45
OK, looks just like my cell phone batteries g


How important is battery type to a digital camera?
We have two, supplied new with
Fuji Li-Ion battery type NP-45 = 3.7v at 740mAh
GE Li-ion battery Model DS5370 = 3.7v at 700mAh

Should these be interchangeable i.e. usable in
either camera?

740mAh vs 700mAh says how long they will hold a charge [sic], not much
difference in this case. If these are AA you probably don't want to mix
them.

740mAh vs 700mAh says how long they will hold a charge while being used.

--
Paul Furman
www.edgehill.net
www.baynatives.com

all google groups messages filtered due to spam