Canon UC7000 Instruction Manual page 10

Remember, it may start to give you less recording time...
• If you recharge it without first completely discharging it.
• If you leave it attached to the camera (or a video light) for more than a week.
• If you don't use it for three months or more.
...but you should be able to "refresh" it.
• The power adapter has a refresher function which restores battery packs to full capacity (see below).
• If this does not improve the battery pack's performance, it has reached the end of its life and must be
replaced.
The lifetime of nickel-cadmium battery packs
• Nickel-cadmium battery packs produce electrical energy from a chemical reaction, so although they can
be recharged, they do not last forever. Even if they are not used, their performance still degrades over
time. If the battery pack runs out quickly even after you have "refreshed" it, it has come to the end of its
useful and should be replaced.
• Be sure to fully charge and discharge the battery pack every three months even if you do not otherwise
use it.
Refreshing the battery pack
If the battery pack starts to give less recording time,
use the adapter's refresher function to restore it to
full capacity. The adapter will first discharge the
battery pack, and then recharge it.
1. Attach the battery pack to the adapter
and plug it into an mains outlet.
• See p. 8.
2. Press the REFRESH button.
• The CHARGE/REFRESH indicator flashes
green to show that discharging is in progress.
When the battery pack is discharged, the
indicator begins to flash red any recharging
begins.
REFRESH button
CHARGE/REFRESH indicator
3. Remove the battery pack when discharging/recharging has finished.
• The indicator glows steadily red when recharging is completed.
• If you only want to discharge the battery pack, there is no need to plug in the adapter. In this case, you
can remove the battery pack when the CHARGE/REFRESH indicator stops flashing green.
Discharge and recharge times
Battery pack BP-711
BP-729
Discharge 4 hr. 10 hr.
Recharge
1
hr. 10 min.
2 hr. 30 min.
Total refreshing charge 5 hr. 10 min. 12 hr. 30 min.
• These times are approximate.
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