Keysight N9923A FieldFox User Manual page 148

To charge a battery inside the FieldFox, insert the AC/DC adapter plug into the
Power connector on the FieldFox side panel (middle hinged door), then plug the
adapter into an AC outlet.
 FieldFox ON: Charging is indicated by a battery icon in the upper right of the front

Using the External Battery Charger (N9910X–872)
Important: Read the safety information for the External Charger on page 154.
148
panel screen. The icon shows 100% when charging is done.
FieldFox OFF: Charging is indicated by the FieldFox power LED glowing amber,
with its intensity increasing from dim to bright every few seconds. This pattern
repeats until the LED turns off when charging is done. Learn more on page 16.
External Battery Charger (N9910X–872)
AC/DC adapter
FieldFox User's Guide