Lamar Technologies Alpha C-25 - Manual (Page 14)

3. OPERATING GUIDE
ALPHA C-25 Manual V2.1.doc Page 14
J. WAIT FOR THE CHARGE TO AUTOMATICALLY
COMPLETE
During the charging of the battery the battery voltage, charge current, and
elapsed charge time are displayed.
 For the constant-current method the current remains constant while
the voltage increases during the time of charging.
 For the constant-potential method the charger’s end voltage remains
constant while the current starts at a high value and gradually
approaches zero as the battery approaches a full charge.
The actual charge current is determined by the battery, until the constant
voltage is reached (14.3 volts for 12 volt lead-acid batteries and 28.5 volts
for 24 volt batteries).
The charging time ends when the current remains constant (within 10%) for
3 consecutive hourly readings or the set charge time has been reached.
The Off lamp illuminates.
K. UPDATE BATTERY RECORDS
Record the charge data in the battery records to ensure good maintenance
of the battery.
L. SWITCH AC POWER OFF
Switch the AC on/off switch off before
removing the battery.
NOTE: If in emergency it is required to stop
charging, switch the unit to off. When
charging is restarted the timer is reset to
zero. It may be necessary to adjust the
parameters (current and time) before
resuming to charge.