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- FM50/FM70/QM71/QM71D/FM91/ QM91/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 the proper function.
To store the battery pack, remove it from your camcorder and put it in a dry, cool place.
•To discharge the battery pack on your camcorder completely, set [A.SHUT OFF] to
[NEVER] on the 
(STANDARD SET) menu and leave your camcorder in tape
recording standby until the power goes off (p. 81).
About battery life
•The battery life is limited. Battery capacity drops little by little as you use it more and more, and as time passes. When the available battery time is shortened considerably, a probable cause is that the battery pack has reached the end of its life. Please buy a new battery pack.
•The battery life varies depending on how it is stored and the operating conditions and environment for each battery pack.
“InfoLITHIUM” is a trademark of Sony Corporation.
120Additional Information