Nikon D780 DSLR Camera (Body Only) - Manual (Page 747)

701 Menu Guide > B The Setup Menu
View information on the battery
currently inserted in the camera.
Battery Info
G button
U B setup menu
Option Description
[ Charge ] The current battery level expressed as a percentage.
[ No. of
shots ]
The number of times the battery has been used to release
the shutter since it was last charged.
[ Battery
age ]
A five-level display showing battery age.
• A value of “0” ( k ) indicates that battery performance is
unimpaired.
• A value of “4” ( l ) indicates that the battery has reached
the end of its charging life. Replace the battery.