110 Agilent U1251A/U1252A User’s and Service Guide
5 Maintenance
The smart charging mode will be started if passed self- test.
The charging time is limited to within 220 minutes. That
means the battery will not be charged over 220 minutes. The
secondary display will count down the charging time. During
the charging in progress, no pushbuttons can be operated.
The error message maybe indicated during charging to
prevent overcharging on the battery.
Figure 50 Charging mode
NOTE
••If OL message occurs while the battery is inside, please do not charge the
battery.
• If C-Err message occurs, check if the battery is the specified type. We specified
the correct battery in this guide. Please make sure that the battery is the
specified rechargeable battery before charging it again. After replacing with the
specified rechargeable battery, press SHIFT button to redo the self-test. Replace
with a new battery if the C-Err condition is diplayed,