266 Keysight B2980B User’s Guide, Edition 1
Working with Battery
Automatic shutdown
When the relative battery charge drops about 5 %, the instrument will save all
setup information and shut down the power to the measurement circuitry to
prevent the battery from discharging to a level that is damaging. If this occurs,
charge the battery.
Note that the front panel LCD will still work when this shutdown occurs.
The saved setup information will be recalled when the instrument is turned on
again.