2-
If shorted battery cells are detected during a charge cycle, the Red LED "Abnormal Cycle" will
flash in a pattern of being on for 2 seconds and off for 1 second.
3-
If batteries are disconnected from the charger during a charge cycle, the Yellow LED "Charger On"
will turn off. The charger will also shut off.
4a-
On most models, if AC power is lost during a charge cycle, the Yellow LED "Charger On" will turn
off and the Red LED "Abnormal Cycle" will turn on. The battery status LED (either Yellow "80%
Charge" or Red "Incomplete") will remain on. The Yellow LED "Charger On" will come back on and
the Red LED "Abnormal Cycle" will turn off upon resumption of AC power.
4b-
On models that are AC powered only, if AC power is lost during a charge cycle, the charger will
turn off and all LED's will go out. Upon resumption of AC power, charger will go through self-
diagnostic test (LED's flash) and charge cycle will restart.
5-
In the event of output over-current, the Yellow LED "Charger On" will turn off and the Red LED
"Abnormal Cycle" will flash. The battery status LED (either Yellow "80% Charge" or Red "Incomplete")
will remain on.
7
Full Charge Sentry (FCS)
This feature was developed to maintain batteries in a charged state while they are left in storage.
FCS will be found on most MAC SCR Domestic chargers. This feature is not incorporated into the
Export Dual AC Voltage models. The FCS feature will be activated upon satisfaction of the following
four conditions:
1. Charger is connected to the battery and AC power.
2. Battery voltage reached 2.50 volts per cell at the end of the last charge cycle.
3. Battery has been in storage for at least 14 days since the last complete charge cycle.
4. Battery voltage falls below 2.05 volts per cell.
If these conditions are met, the charger will automatically maintain the battery as required.
NOTE:
A charger with FCS should not be used in applications where the charger's DC output is
permanently connected to the battery. The Export charger should be selected for these
applications.
