3
•
Rated maximum 3A charging current for 24V batteries;
•
Charging status LED indicators to display the battery charging level.
3.
Disconnect the AC power cord from the AC power outlet when fully charged. Then disconnect the connection with the battery.
Note:
•
ALWAYS disconnect the AC power cord from the AC power outlet before connecting (or disconnecting) the charger to (or from) the battery.
CHARGING PHASES
1. Diagnosis & Recovery
As soon as charging instruction is given to the charger, the unique function automatically checks status of battery (detects voltage). If a deeply
discharged battery's voltage is over 4.5V ± 0.5V (for 12V battery) or 16V ± 0.25V (for 24V battery), charger begins charging with 1.5A low
current to recover it, which terminates when voltage reaches to 10.5V ± 0.25V for (12V battery) or 21V ± 0.25V (for 24V battery) at the
beginning of the process, the charger skips low current charging and it switches over to charging mode.
2. Bulk Charging
80% of energy is returned in this phase of charging. Here charger performs in multi-stages:
•
For 24V battery
a) High Rate Charging: Charger delivers constant current of 3.0A until the voltage reaches to 25.6V
b) Medium Rate Charging: Charger delivers constant current of 2.5A until the voltage reaches to 28.2V at which point the charger switches to
Absorption phase
•
For 12V battery
a) High Rate Charging: Charger delivers constant current of 6.0A until the voltage reaches to 12.8V.
b) Medium Rate Charging: Charger delivers constant current of 4.0A until the voltage reaches to 13.9V, at this level constant current is 3.0A
until voltage reaches to 14.0V. Finally charger delivers 2.5A current until voltage reaches to 14.1V at which point the charger switches to
Absorption phase. Since current is not delivered at highest constant level, the charger will minimize the heating up of the battery, and hence will
eliminate the build up of gases. This ensures more efficient and safer performances.
3. Absorption
Use of a constant high current for extended periods of time risks gassing the battery, therefore a constant low charging current is given at 1.5A
to raise voltage from 28.2V to 28.8V (for 24V battery) and 14.1V to 14.4V (for 12V battery). In this phase complete charging up to almost 100%
is achieved. Charger switches to trickle charge phase after sensing that the battery is truly fully charged.
4. Maintenance Charge
As charger continuously monitors the terminal voltage in order to determine if a maintenance charging should be initiated, if the battery is
loaded and/or terminal voltage falls below 25.6V (for 24V battery) or 12.8V (for 12V battery), the charger starts maintenance charging pulse at
constant 1.5A until voltage reaches to 28.8V (for 24V battery) or 14.4V (for 12V battery). Now maintenance charging is discontinued. Cycle of
trickle charging and maintenance charging is repeated indefinitely to keep battery in good condition when it is not in use and enables charger to
be left connected indefinitely.
5. Supply 13.6V
a)
Maintenance of 12V SLA batteries:
This mode is suitable for maintenance of 12V batteries with capacity range from 14-230Ah. The
charger delivers a constant voltage of 13.6V. This is maintenance mode for applications where maximum capacity from the battery is required,
