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Since
it is a portable
device, digital cameras contain a portable power source in the form of
dry cells. These can be made specifically for your camera , or can be
a series of commercially available 1.5 volt AA or AAA cells. Many cameras
also include an AC adapter in the camera kit.
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Rechargeable
Cells Specific to a Given Camera
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Some cameras required
a special power source specific to that model of cameras. The Sony digital
cameras fit into this class. You usually get one cell with your new camera,
but it is wise to carry a second cell if the first one discharges. Don't
get caught without a spare. You may be surprised at the cost of some of
these cells, but usually the more they cost, the longer they will hold
an acceptable charge. We have had some Sony cells for four years, and
they are still operating at full capacity.
Some cameras allow
for recharging while they are in the camera. Others require removal from
the camera for recharging. There is a benefit for external charging: you
can use a second cell in your camera for continued image capturing while
recharging the first cell.
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Click
on the images below to view a movie which will demonstrate how the cells
are recharged or replaced. To stop the movie, click on it again.
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Charging
the Cell Using an Internal Charger
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Charging
the Cell Using the External Charger
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Non-Rechargeable
Cells Specific to a Given Camera
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Some camera manufacturers
produce a disposable battery which can be used in their cameras. We do
not recommend single use batteries. Experts in the use of digital cameras
suggest using lithium cells when powering electronic devices such as digital
cameras.
The movie shown
below displays the specialized product that Olympus makes for their cameras.
AA lithium cells can be substituted for these powerpacks. Be sure to install
them with proper polarity orientation.
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Disposable,
Non-Rechargeable Power Pack
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Rechargeable,
Nonspecific Camera Cells
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| Cell and battery technology
has made tremendous leaps in the past decade. We recommend using a rechargeable
product. If the camera uses standard sized cells such as AA or AAA cells,
the best cells we have found to date is the "Nickel Metal Hydride"
cell. These cost about the same as the disposable lithium cells used in
electronic devices, but can be recharged. We do not recommend that you use
rechargeable alkaline cells because they will discharge rapidly. We also
do not recommend Nickel-Cadmium cells (NiCad), since they do not produce
the total voltage required by the electronic devices (1.2 volts versus 1.5
volts per cell). Nickel Metal Hydride is the way to go. Be sure to use a
recharger specific to NiMH cells. |
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Rechargeable,
"Off the Shelf" Cells (NiMH)
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If you are using
a camera in a stationary location and the camera is near an AC outlet,
using the AC to DC power adapter will save on power pack expenses and
save on time replacing batteries or cells. The AC to DC power adapter
is also useful when you are displaying images directly from the camera
to the television monitor. Using the camera as an image player through
the TV is draining on the cells and will cause a rapid discharge, if no
AC power adapter is used.
Keep in mind there
is a difference between an AC/DC power adapter, and an AC/DC charger.
Both devices plug into the wall outlet, but do different things. The AC/DC
power adapter powers the camera for taking, storing, retrieving and displaying
images. The AC/DC charger charges the cell in the camera, as shown in
the first movie above.
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The
AC to DC Power Adapter
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