Hioki LR8431, Instruction Manual

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2.1 Using the Battery Pack (Option)
28
When to charge
When powering the instrument from the battery pack without the Model Z1005
AC Adapter, the low battery indicator (
) is displayed when the battery
charge is depleted, indicating that the battery pack requires charging.
Note that if the Memory HiLogger is turned off under this situation, waveform
data may fail to be backed up, and could be lost.
Approximate charging time:
About 200 minutes at 23°C when recharged at the first appearance of the low
battery indicator.
Approximate continuous battery-only operating time
(When saving data to a CF card at a temperature of 23°C)
* When using a USB flash drive, the continuous operating time may decrease
depending on the particular USB flash drive in use.
• After a full charge, with the LCD backlight always on (default setting):
approximately 2.5 hours
• After a full charge, with the LCD backlight off (five minutes after last key-
press): approximately 3 hours
See: "Enabling and Disabling the Backlight Saver" (p. 121)