Battery pack/ battery charger, Battery pack/battery charger, Effective use of the battery pack – Sony A57 User Manual
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Battery pack/
Battery charger
• The charging time differs
depending on the remaining
capacity of the battery pack or
charging conditions.
• We recommend charging the
battery pack in an ambient
temperature of between 10 to 30°C
(50 to 86°F). You may not be able
to efficiently charge the battery
pack outside of this temperature
range.
• Connect the battery charger to the
nearest wall outlet (wall socket).
• Do not try to charge the battery
pack again right after it has been
charged, or when it has not been
used after being charged. Doing so
will affect the performance of the
battery pack.
• Do not charge any battery pack
other than the “InfoLITHIUM” M
series battery pack in the battery
charger (supplied) with your
camera. Batteries other than the
specified kind may leak, overheat,
or explode if you attempt to charge
them, posing a risk of injury from
electrocution and burns.
• When the CHARGE lamp flashes,
this may indicate a battery error or
that a battery pack other than the
specified type has been installed.
Check that the battery pack is the
specified type. If the battery pack is
the specified type, remove the
battery pack, replace it with a new
one or another one and check if the
battery charger operates correctly.
If the battery charger operates
correctly, a battery error may have
occurred.
• If the battery charger is dirty,
charging may not be performed
successfully. Clean the battery
charger with dry cloth, etc.
• Use only an NP-FM500H battery
pack. Note that the NP-FM55H,
NP-FM50 and NP-FM30 cannot be
used.
• The displayed level may not be
correct under certain circumstances.
• Do not expose the battery pack to
water. The battery pack is not
water-resistant.
• Do not leave the battery pack in
extremely hot places, such as in a
car or under direct sunlight.
Effective use of the battery
pack
• Battery performance decreases in
low temperature surroundings. So,
the time that the battery pack can be
used is shorter in cold places and
the speed of continuous shooting
slows down. We recommend that
you put the battery pack in a pocket
close to your body to warm it up,
and insert it in your camera
immediately before you start
shooting.
• The battery pack will run out
quickly if you use the flash
Notes on using the
battery pack