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21
Preparing the Camera
To protect the battery pack and prolong its life, do not charge it for
longer than 24 hours continuously.
• Since this is a lithium ion battery pack, you need not completely
discharge it before recharging. It can be recharged at any point.
However, since the maximum number of charge cycles is
approximately 300 times (battery life), you are recommended to
charge the battery pack after having discharged it completely to
prolong battery life.
• It takes approximately 95 minutes to fully charge the battery pack
from a fully discharged state (based on Canon’s testing standard).
Charging it within a temperature range of 5° to 40 °C (41° to 104 °F)
is recommended.
• Charge times may vary according to the ambient temperature and
the battery pack’s charge state.
•See Battery Capacity (p. 155).
• You may hear a noise during charging. This is not a malfunction.
Handling Precautions
zKeep 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.
zDo not rapidly overturn or wave the battery charger around when it
contains the battery pack. The battery pack could fly out.
zAt 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.
zDo 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.
zDo not charge batteries other than Battery Pack NB-3L in this charger.
zThe 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.