NAC Image Technology Memrecam Q1v User Manual page 63

 Since the charge is affected by the individual differences in batteries and ambient
temperature, the display is not exact. Use as an approximation.
 If the LED switches from flashing orange to red during memory backup with the battery,
charge as soon as possible.
(00375)
Red：Memory backup enabled (AC power＋battery)
 Battery charge：Low
 The memory backup time is shortened due to the low battery charge. Use the
memory backup function after charging.
Flashing Red：Memory backup enabled (battery only)
 Battery charge：Low
 Plug in the AC adapter and charge the battery as soon as possible. Charging
will start once power is supplied from the AC adapter. If not charged, the
overdischarge protective function will start and the images in the memory
will be lost.
OFF：Memory backup disabled
 If the memory backup is disabled (video not recorded in the memory),
BATT is not lit.
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Memory Backup