About the “InfoLITHIUM” battery pack
This unit is compatible with the “InfoLITHIUM” battery pack (M series). Your camcorder operates only with the “InfoLITHIUM” battery pack. “InfoLITHIUM” M series battery packs have
the 
mark.
The “InfoLITHIUM” battery pack is a lithium- ion battery pack that has functions for communicating information related to operating conditions between your camcorder and an optional AC Adaptor/charger.
The “InfoLITHIUM” battery pack calculates the power consumption according to the operating conditions of your camcorder, and displays the remaining battery time in minutes. With an AC Adaptor/charger (optional), the remaining battery time and charging time appear.
To charge the battery pack•Be sure to charge the battery pack before you start using your camcorder.
•We recommend charging the battery pack in an ambient temperature of between 10°C to 30°C (50°F to 86°F) until the CHG (charge) lamp turns off. If you charge the battery pack outside of this temperature range, you may not be able to charge it efficiently.
•After charging is complete, either disconnect the cable from the DC IN jack on your camcorder or remove the battery pack.
To use the battery pack effectively•Battery pack performance decreases when the surrounding temperature is 10°C (50°F) or below, and the length of time you can use the battery pack becomes shorter. In that case, do one of the following to use the battery pack for a longer time.
–Put the battery pack in a pocket to warm it up, and insert it in your camcorder right before you start taking shots.
–Use a large capacity battery pack: NP- QM71D/QM91D (optional).
•Frequent use of the LCD screen or a frequent playback, fast forward or rewind operation wears out the battery pack faster. We recommend using a large capacity battery pack:
•Be sure to set the POWER switch to (CHG) OFF when not recording or playing back on your camcorder. The battery pack is also consumed when your camcorder is in recording standby or playback pause.
•Have spare battery packs ready for two or three times the expected recording time, and make trial recordings before making the actual recording.
•Do not expose the battery pack to water. The battery pack is not water resistant.
About remaining battery time indicator•When the power goes off even though the remaining battery time indicator indicates that the battery pack has enough power to operate, charge the battery pack fully again. The indication on the remaining battery time will be indicated correctly. Note, however, that the battery indication will not be restored if it is used in high temperatures for a long time, or if left in a fully charged state, or when the battery pack is frequently used.
Use the remaining battery time indication as a guide to the approximate shooting time.
•The E mark that indicates low battery flashes even if there are still 5 to 10 minutes of battery time remaining, depending on the operating conditions or ambient temperature and environment.
About storage of the battery pack•If the battery pack is not used for a long time, fully charge the battery pack and use it on your camcorder once a year to maintain proper function.
To store the battery pack, remove it from your camcorder and put it in a dry, cool place.
•To completely use up the battery pack on your camcorder, set [A.SHUT OFF] to [NEVER] in the 
(OTHERS) menu (p. 58) and leave
96Additional Information