Canon S40 Digital Camera User Manual


 
16 Preparing the Camera
Charging the Battery Pack (continued)
Battery Pack Handling Precautions
Keep the battery pack and camera terminals ( ) clean at all times. Dirty
terminals may cause a 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 cover the battery charger with anything, such as a tablecloth, cushion or
blanket, when it is charging. Heat will build up internally and possibly lead to fire.
Do not charge batteries other than Battery Pack NB-2L with the supplied battery
charger.
The battery pack continues to discharge a small amount when left in the camera
(even with the power turned off) or battery charger. This shortens the battery life.
Remove it from the camera, attach the supplied terminal adapter and store it at
room temperature (30° C/86° F or less) in a dry place. Charge it before use.
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 lifecycle or affect performance, you are recommended to use the
battery pack in the camera until it is completely discharged and to store it at
room temperature (30° C/ 86° F or less). 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.
The camera consumes the battery charge when the power is on even when a
function is not being used. To conserve the battery charge, be particularly
attentive in turning the camera off.
Although the battery pack’s maximum operating range is 0 to 40º C (32 to 104º F),
the optimal range is 10 to 30º C (50 to 86º F). At cold temperatures, such as those
experienced when skiing, performance will temporarily decline, reducing the
usable time before recharging.
If the usable time of a battery pack diminishes substantially even when fully
charged, it should be replaced.