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External
Since: Aug 01, 2005
Posts: 189
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(Msg. 1) Posted: Thu Aug 16, 2007 10:48 pm
Post subject: Panasonic Oxyride vs Eveready Lithium.
Archived from groups: rec>photo>digital (more info?)
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My wife's Panasonic LZ2 P/S camera can accept AA Alkaline, NiMH, or
Panasonic Oxyride batteries, and it has a separate setting for each.
They specifically advise AGAINST using Li batteries.
I wondered why this was the case.
NiMH batteries have an operating voltage of 1.2 Volts.
Alkaline and Lithium batteries operate at 1.5 Volts.
Oxyride batteries have a starting voltage of 1.7 Volts.
I have used AA Lithiums in my little Pentax Optio 30 P/S and they last a
loooong time. I wondered if Panasonic advises against Lithiums because
they would leave Panny's proprietary Oxyrides in the dust and there goes
a new profit center down the tubes.
Any experience or thoughts on this subject?
Bob Williams |
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External
Since: Aug 02, 2005
Posts: 3969
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(Msg. 2) Posted: Fri Aug 17, 2007 3:00 am
Post subject: Re: Panasonic Oxyride vs Eveready Lithium. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Thu, 16 Aug 2007 22:48:34 -0700, Bob Williams wrote:
> My wife's Panasonic LZ2 P/S camera can accept AA Alkaline, NiMH,
> or Panasonic Oxyride batteries, and it has a separate setting for each.
> They specifically advise AGAINST using Li batteries.
> I wondered why this was the case.
Lithium batteries have two drawbacks. They have a built-in
current limiter. This probably isn't a problem with most cameras.
In flash units, the higher powered ones can really suffer from this,
taking quite a bit longer to recharge the flash than if NiMH, NiCD
and even alkaline batteries are used. The other drawback is that
when they're used, lithium batteries produce much more heat than
other battery types. This shouldn't be too much of a problem with
cameras that are battery efficient, but cameras that are use more
battery power can quickly overheat. This is probably more of a
problem with very small camera bodies that don't have a lot of space
to both isolate the batteries from the electronic components, and
that won't dissipate heat as well a larger camera bodies can, if
they are properly designed. |
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External
Since: Nov 24, 2005
Posts: 2796
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(Msg. 3) Posted: Fri Aug 17, 2007 3:15 am
Post subject: Re: Panasonic Oxyride vs Eveready Lithium. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Bob Williams wrote:
> My wife's Panasonic LZ2 P/S camera can accept AA Alkaline, NiMH, or
> Panasonic Oxyride batteries, and it has a separate setting for each.
> They specifically advise AGAINST using Li batteries.
> I wondered why this was the case.
> NiMH batteries have an operating voltage of 1.2 Volts.
> Alkaline and Lithium batteries operate at 1.5 Volts.
> Oxyride batteries have a starting voltage of 1.7 Volts.
> I have used AA Lithiums in my little Pentax Optio 30 P/S and they last a
> loooong time. I wondered if Panasonic advises against Lithiums because
> they would leave Panny's proprietary Oxyrides in the dust and there goes
> a new profit center down the tubes.
> Any experience or thoughts on this subject?
> Bob Williams
Given that the lithium AA batteries and the Oxyrides have about the same
initial voltage, the only reason I can see for forbidding use of Lithium
AA batteries is that the design of the camera uses the internal
resistance of the battery as a way to limit the amperage applied to the
charging of the flash capacitor. If so, this is an important issue, and
an example of bad design. >> Stay informed about: Panasonic Oxyride vs Eveready Lithium. |
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External
Since: Sep 07, 2006
Posts: 291
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(Msg. 4) Posted: Fri Aug 17, 2007 11:26 am
Post subject: Re: Panasonic Oxyride vs Eveready Lithium. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Bob Williams <mytbobnospam DeleteThis @cox.net> wrote:
> My wife's Panasonic LZ2 P/S camera can accept AA Alkaline, NiMH, or
> Panasonic Oxyride batteries, and it has a separate setting for each.
> They specifically advise AGAINST using Li batteries.
> I wondered why this was the case.
> NiMH batteries have an operating voltage of 1.2 Volts.
> Alkaline and Lithium batteries operate at 1.5 Volts.
No, non-rechargeable Lithum AA has higher voltage alkaline AA cells,
1.7 V, not 1.5.
> Oxyride batteries have a starting voltage of 1.7 Volts.
Oxy Nickel Hydroxide batteries maintain a more constant voltage
over their lifespan than alkaline, but most of the Oxyride specs
say they start around 1.5 V.
> I have used AA Lithiums in my little Pentax Optio 30 P/S and they last a
> loooong time. I wondered if Panasonic advises against Lithiums because
> they would leave Panny's proprietary Oxyrides in the dust and there goes
> a new profit center down the tubes.
Could be, but perhaps the circuitry can't deal with 1.7 V. >> Stay informed about: Panasonic Oxyride vs Eveready Lithium. |
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External
Since: Jul 27, 2006
Posts: 448
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(Msg. 5) Posted: Fri Aug 17, 2007 4:00 pm
Post subject: Re: Panasonic Oxyride vs Eveready Lithium. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Ron Hunter wrote:
> Bob Williams wrote:
>> My wife's Panasonic LZ2 P/S camera can accept AA Alkaline, NiMH, or
>> Panasonic Oxyride batteries, and it has a separate setting for each.
>> They specifically advise AGAINST using Li batteries.
>> I wondered why this was the case.
>> NiMH batteries have an operating voltage of 1.2 Volts.
>> Alkaline and Lithium batteries operate at 1.5 Volts.
>> Oxyride batteries have a starting voltage of 1.7 Volts.
>> I have used AA Lithiums in my little Pentax Optio 30 P/S and they last
>> a loooong time. I wondered if Panasonic advises against Lithiums
>> because they would leave Panny's proprietary Oxyrides in the dust and
>> there goes a new profit center down the tubes.
>> Any experience or thoughts on this subject?
>> Bob Williams
>
> Given that the lithium AA batteries and the Oxyrides have about the same
> initial voltage, the only reason I can see for forbidding use of Lithium
> AA batteries is that the design of the camera uses the internal
> resistance of the battery as a way to limit the amperage applied to the
> charging of the flash capacitor. If so, this is an important issue, and
> an example of bad design.
I don't know the reason, but the manual for my Canon A40 also had the
same warning. Nothing about it in the A95 manual.
I wouldn't use them anyway. NiMH work fine and since I tend to not
exhaust them in a short time (like say less than a month) I now use
eneloop. They seem to be lasting very well. Last charge for mine was
November 2006 and still in camera at a little under than 300 shots.
Dave Cohen >> Stay informed about: Panasonic Oxyride vs Eveready Lithium. |
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External
Since: Aug 05, 2007
Posts: 59
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(Msg. 6) Posted: Fri Aug 17, 2007 4:10 pm
Post subject: Re: Panasonic Oxyride vs Eveready Lithium. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Bob Williams wrote:
> My wife's Panasonic LZ2 P/S camera can accept AA Alkaline, NiMH, or
> Panasonic Oxyride batteries, and it has a separate setting for each.
> They specifically advise AGAINST using Li batteries.
> I wondered why this was the case.
> NiMH batteries have an operating voltage of 1.2 Volts.
> Alkaline and Lithium batteries operate at 1.5 Volts.
> Oxyride batteries have a starting voltage of 1.7 Volts.
> I have used AA Lithiums in my little Pentax Optio 30 P/S and they last a
> loooong time. I wondered if Panasonic advises against Lithiums because
> they would leave Panny's proprietary Oxyrides in the dust and there goes
> a new profit center down the tubes.
> Any experience or thoughts on this subject?
> Bob Williams
My LZ3 works fine with NiMH batteries, or the newer kind of
alkalines. I use the newer kind of NiMH batteries, which
don't lose charge in storage very fast. >> Stay informed about: Panasonic Oxyride vs Eveready Lithium. |
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