Panasonic HDC-SD100 Operating Instructions Manual page 27

To recharge the built-in lithium battery
Connect the AC adaptor or attach the battery
to this unit, and the built-in lithium battery will
be recharged. Leave the unit as it is for approx.
24 hours and the battery will maintain the date
and time for approx. 6 months. (The battery is
still being recharged even if the mode dial is
set to OFF.)
WARNING
THE LITHIUM BATTERY IN THIS UNIT MUST
ONLY BE REPLACED BY QUALIFIED
PERSONNEL. IF THIS IS NECESSARY,
CONTACT THE PANASONIC CUSTOMER
CARE CENTRE ON 132600 FOR YOUR
NEAREST AUTHORIZED SERVICE CENTRE.
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