User Manual

5
RND 305-00019
Check Mode and Normal Charging
The Charger fi rst checks the ba ery’s condition, for normal ba ery this indication extinguishes a er a few
seconds and charger enters into “Charge Mode” and fi nally to the “Float/maintenance Mode” when the
ba ery is fully charged
.
Charging Stages
Bulk: This charges the ba ery up to about 80% full.
The charger delivers max 5A current for Car and Low temperature mode, 1.5A for Motor Bike Mode until
the ba ery voltage rises to a set value. There is a thermal control in gradual decrease of charging current
at high operation temperature for the Car and Low Temperature Mode.
Absorption: PWM charges to 100%. The terminal voltage is kept constant at set level. Ba ery charger
delivers current pulses to the ba ery 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 ba ery voltage is above a set voltage. When bat-
tery voltage drops below the set voltage, charger will deliver small current until the ba ery voltage rises to
about 13.5V. Then the maintenance charging cycle repeats.
In the case of ba ery voltage drops more than 12.2V due to external load or otherwise, the charger will
start a new charging cycle of Bulk, Absorption and Float.
Check Mode and Desulphate Charging
The desulphate charging can recondition only slightly sulphated ba ery.
A. In the case the “Check Mode” indication is lit longer, the charger is in desulphate charging. A er some
time, if desulphation of the ba ery is successful, the charger will switch to normal charging and the
“Check Mode” is extinguished.
B. If the desulphate charge fails to recondition the ba ery a er some time, the “Check Mode” blinks. The
ba ery should be replaced.
The maximum desulphate charging time is 8 hours.
Check Mode and Unchargeable ba ery
A. If the Check Mode blinks before or a er pressing the Mode bu on then the ba ery is not suitable for
charging. Check the ba ery connections, clean ba ery terminals to double confi rm if the ba ery is not
really suitable for charging.
B. The Check Mode also blinks a er 40 hours in Bulk and or Absorption Stage charging until ba ery is
removed. This safety time feature is to avoid charging faulty ba ery which cannot hold charge.
Alarm and Faults
The blinking Alarm indicates faulty connections or charge condition so that charger does not give any
output power. Once the fault has been corrected charger will continue to operate normally.
A. Wrong connection of Positive and Negative terminal will cause “Alarm” to blink.
B. Shorting the output cable terminals (crocodile clamps or ring connectors)
C. Over Temperature Protection has been activated charging has stopped.
Interrupting the charging process
When there is a power outage, the ba ery charger will resume charging at its last selected Charging Mode
(motorcycle, car, Low Temp.) upon the return of mains AC power.
The charger automatically completes the charging process when the charging end voltage is reached and
switches to fl oat / maintenance charge mode.