Agilent Technologies U1251A User's And Service Manual page 111

Agilent U1251A/U1252A User's and Service Guide
7. The charge end message (C–End) will be displayed on the
secondary display once charging is completed. The trickle
charging current will be provided to maintain the battery
capacity. The flashing signs of
displayed to show the trickle state.
8. Remove the DC adapter when the C–End is displayed on
the secondary display. Do not turn the rotary switch
before removing the adapter from the terminals.
Figure 51 Charge end and trickle state
Maintenance
and will be
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