Nikon P-400R Instructions Manual page 39

Checking the remaining battery charge level
When the power is turned on, the remaining
battery charge level might be displayed at the
top right of the LCD monitor.
The remaining battery charge level is
displayed when the level is low.
Table: Remaining battery charge level indications and meanings
Indication
None
Remaining battery charge
level (
No battery charge remains.
Replace the battery.
When the battery has become empty
When the remaining battery charge level is near
empty, the message "Battery exhausted" is
displayed and then the power of this product is
automatically turned off. In this status, you can no
longer perform any operations such as observing
and capturing images, and displaying recorded
images.
To prevent data from being lost when the battery
becomes empty while using the product, charge or
replace the battery as early as possible if the
battery icon is displayed.
P-400R Digital Microscope Instructions
The remaining battery charge is enough.
The remaining battery charge level is low. Prepare for
) charging or replacing the battery.
Operation is no longer possible. Charge or replace the
battery.
Remaining battery charge level
Meaning
23
4