Monroe Electronics Charge Plate - Analyzer - model 300 - Manual (Page 19)

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Section 7
APPENDIX I
Bad Battery Message and Resetting the Dead Battery Flag
When operating from the AC line, if the Model 300 has a bad battery, meaning that the Model
300 detects that the battery will not charge above 4 volts within 5 minutes, then a Bad
Battery flag is set and the battery charger will stop trying to charge the battery until the Bat
Battery flag is cleared.
When this condition occurs, the Model 300 displays a BAD BAT message on the front panel
for four (4) seconds. The Model 300 continues to operate properly from the AC line. In the
event that the operator does not see the
BAD BAT message when it appears on the front
panel, this message is also displayed when the unit is turned on.
We recommend that the battery be replaced when this message is seen, although the unit
will continue to operate properly under AC power conditions.
Once the battery has been replaced, the Bad Battery flag can be reset by pressing
Shift/Cancel when BAD BAT is displayed during turn on. The Model 300 will display RSET
BATO to indicate that the Bad Battery flag is reset.