Sony Handycam DCR-TRV340E Operating Instructions Manual page 246

Maintenance information and
precautions
Charging the built-in
rechargeable battery
Your camcorder is supplied with a built-in
rechargeable battery installed to retain the date
and time, etc., regardless of the setting of the
POWER switch. The built-in rechargeable battery
is always charged as long as you are using your
camcorder. The battery, however, will become
discharged gradually if you do not use your
camcorder. It will be completely discharged in
about half a year if you do not use your
camcorder at all. Even if the built-in rechargeable
battery is not charged, it will not affect
camcorder operation. To retain the date, time,
and other information, charge the battery if the
battery is discharged.
Charging the built-in rechargeable battery:
•Connect your camcorder to wall socket using
the AC power adaptor supplied with your
camcorder, and leave your camcorder with the
POWER switch turned off for more than 24
hours.
•Or, install a fully charged battery pack in your
camcorder, and leave your camcorder with the
POWER switch set to OFF (CHG) for more than
24 hours.
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