Panasonic HDC-TM41PC Owner's Manual page 23

Battery capacity indication
• The display changes as the battery capacity reduces.
If there is less than 3 minutes remaining, then Q will become red. If the battery
discharges, then _ will flash.
• The remaining battery capacity is displayed when using the Panasonic battery that you
can use for this unit. The actual time can vary depending on your actual use.
• When using the AC adaptor or batteries made by other companies, the remaining
battery capacity will not be shown.
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VQT3J95