Canon PowerShot SD100 User Manual page 24

Handling Precautions
Keep the battery pack terminals ( ) clean at all times. Dirty
terminals may cause poor contact between the battery pack and camera.
Polish the terminals with a tissue or a dry cloth before charging or using
the battery pack.
Do not rapidly overturn or wave the battery charger around when it
contains the battery pack. The battery pack could fly out.
At low temperatures, battery pack performance may be reduced and the
low battery icon may appear earlier than usual. Under these conditions,
resuscitate the battery pack by warming it in a pocket immediately before
use. However, ensure that there are no metallic items in the pocket that
could cause a short circuit, such as a key holder, etc.
Do not place anything, such as tablecloths, carpets, bedding or cushions,
on top of the battery charger while it is charging. Heat will build up and
could result in a fire.
Do not charge batteries other than Battery Pack NB-3L in this charger.
The battery pack continues to discharge a minimal portion of its power
while installed in the camera, even with the power off, or in the charger.
This will shorten battery life.
Do not allow any metal objects
Fig. A Fig. B
such as key rings to touch the
and terminals (Fig. A), as this
can damage the battery pack. To
carry the battery pack or store it
during periods of disuse, always
replace the terminal cover (Fig. B)
and store it in a cool, dry place.
Recharge it fully before using it
again.
Even charged battery packs
continue to discharge naturally. You are advised to charge the battery on
the day of use, or one day before, to ensure a full charge.
Since storing a fully charged battery pack for long periods of time (about 1
year) can shorten its life cycle or affect performance, you are
recommended to use the battery pack in the camera until it is completely
discharged and to store it at normal temperature (23 °C/73 °F) or lower. If
you do not use the battery pack for long periods of time, charge it fully and
discharge it fully in the camera at least once a year before returning it to
storage.
If the performance of the battery pack diminishes substantially even when it
is fully charged, its life has been exceeded and it should be replaced.
22