Display
Indications
Standby Mode
d
Steady light on :
AC mains connected but charger is not yet connected to battery.
Blinking light on :
Battery is connected. 2 minutes is available to select the Charge Mode before the
battery charger reverts back to last selected Charge Mode.
Check Mode
h
Steady light on :
On for few seconds for a normal battery. Battery charger is checking the battery.
Steady light on :
On for longer period. Battery charger is in Desulphate Charge Mode.
Blinking light on :
When connected to battery that is not suitable to be charged.
Blinking light on :
After being in Charging Mode for 40 hrs, Desuphating Charge Mode for 8 hrs or
battery cannot hold charge or cannot be desuphated. Remove the battery .
Charging Mode
i
Steady light on :
Charging is in progress (desulphate, bulk or absorption charge stage)
Float / Maintenance Charge Mode
j
Steady light on :
Battery is fully charged and Charger in Float / Maintenance Pulse Mode
Alarm
k
The blinking alarm indicates charging fault, check following faults.
Output connectors in short circuit
Output connectors in wrong polarity
Over Temperature Protection activated. Charging has stopped.
Check Mode and Normal Charging
The Charger first checks the battery condition. For normal battery this indication extinguishes after
few seconds and battery charger enters into “Charge Mode” and finally to the “Float/Maintenance
Mode” when the battery is fully charged.
Charging Stages
Bulk :
This charges the battery up to about 80% full.
The charger delivers a constant current of 2.2A for 4 minute and 1.2 A for 6 minute cycle until the
battery voltage rises to a set value.
Absorption :
PWM charges to 100%.
The terminal voltage is kept constant at set level. Battery
charger delivers current pulses to the battery in varying pulse periods. When the rise time of pulses
decreases to a set value, charger switches to Float Mode. The maximum total charging time of Bulk
and Absorption is 40 hours at which the charger will shut down.
Float
:
PWM maintenance charging and cycle charging
In this mode the charger does not deliver current when battery voltage is above 25.6 V. When battery
voltage drops below 25.6V battery charger will deliver small current until the battery voltage rises to
about 27.2 V.
