Tips for using the battery pack, Battery life is shorter in cold environment, To save battery power – Sony CCD-TR61 User Manual
Page 8: When to replace the battery pack, Battery care, How to use the switch on the battery pack
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".

Tips for Using the Battery Pack
This section shows you how you can get the most out of your battery pack.
Preparing the Battery Pack
Always Carry Additional Batteries
Have sufficient battery pack power to do 2 to 3 times as much recording as you have planned
"Battery life" indicated in this manual is measured by the continuous recording time of the camcorder,
placed at room temperature using a fully-charged battery.
Battery Life is Shorter in Cold Environment
Battery efficiency is decreased and the battery will be used up more quickly if you are recording in cold
environment.
To Save Battery Power
Turn the STANDBY switch on the camcorder down when not recording to save battery power (a]
A smooth transition between scenes can be made even if recording is stopped and started again. While
positioning the subject, selecting an angle, or looking through the viewfinder lens, the lens moves
automatically and the battery is used. The battery is also used when a tape is inserted or removed.
When to Replace the Battery Pack
While you are using your camcorder, the remaining battery indicator decreases gradually as battery
power is used up.
When the remaining battery indicator reaches the lowest point, the
[b]
When the recording, slide the POWER switch to OFF on the camcorder and replace the battery pack. Leave the tape in the camcorder to obtain smooth transition between scenes after the battery pack is replaced Note on the remaining battery Indicalor The remaining battery indicator of the camcorder may indicate a different remaining capacity from that of Note on the Rechargeable Battery Pack The Battery Heats Up During charging or recording, the battery pack heats up. This is caused by energy that has been generated and a chemical change that has occurred inside the battery pack. This is not cause lor concern. Battery Care e Remove the battery pack from the camcorder after using the battery pack, and keep it in a cool place. When the battery pack is attached to the camcorder, a small amount of current flows to the camcorder even if the POWER switch is set to OFF, which shortens battery life, e The battery pack is always discharging even when it is not in use after charging. Therefore, you should charge the battery right before using the camcorder. How to Use the Switch on the Battery Pack This switch is provided so that you can mark the charged battery. Set the switch to the "no mark" position when charging is completed. Set the switch to the "red mark" position when the battery is used up (or in whichever direction you want to remind yourself), [c]
the NP-77HD battery pack (not supplied). The indicator of NP-77HD is more accurate.