Product Manual

Page 25
e) Charger Functions
Battery Charging Cycle
Charging Voltage Setting: Bulk/Absorption (AbS), Float (FLO) and Recharge (rEC)
Battery Type
Bulk Voltage (Default)
Float Voltage (Default)
Recharge Voltage (Default)
GEL
13.8-14.8V (14.2V)
13.0-14.0 (13.8V)
12.8-14.0 (12.8V)
Flooded
13.8-14.8 & 15.8V (14.4V)
13.0-14.0 (13.5V)
12.8-14.0 (12.8V)
AGM
13.8-14.8V (14.3V)
13.0-14.0 (13.4V)
12.8-14.0 (12.8V)
Lithium
13.8-14.8V (13.9V)
13.0-14.0 (13.5V)
12.8-14.0 (13.2V)
Program
13.8-14.8V (13.8V)
13.0-14.0 (13.2V)
12.8-14.0 (12.8V)
Power Supply
13.0-14.0V (13.8V)
• Consult the battery manufacturer when choosing the bulk and float voltage for the battery bank.
• When selecting the Float voltage, it has to be with a minimum of 0.4V below Bulk Voltage setting.
• The Recharged Voltage determines the restart cycle of the battery bank. The charger will go through a full
recharge cycle when the battery voltage drops to the Recharge Voltage set value. When selecting the
Recharge Voltage, it has to be with a minimum of 0.4 below the Float Voltage setting.
• If Power Supply is chosen, the charger will provide a constant voltage to charge the battery bank.
Note: For 24V system, all voltages are doubled.
Charging Current Setting: Bulk Stage (bUL), Absorption to Float Stage (AbS)
Model
Bulk Stage
Absorption to Float Stage
12V 3000W
100A, 80A, 60A, 40A, 25A (Default: 100A)
20A, 15A, 10A, 5A, 2A (Default: 10A)
12V 2000W
80A, 60A, 40A, 20A, 10A (Default: 80A)
15A, 10A, 8A, 4A, 2A (Default: 8A)
24V 3000W
50A, 40A, 30A, 20A, 10A (Default: 50A)
8A, 6A, 5A, 3A, 2A (Default: 5A)
24V 2000W
40A, 30A, 20A, 10A, 5A (Default: 40A)
6A, 5A , 4A, 3A, 2A (Default: 4A)
• Consult the battery manufacturer when choosing the Bulk Stage charging current of the battery bank. For
a sealed lead acid battery, the rule of thumb for the maximum charging current is 1/5 of battery capacity.
• The Absorption to Float stage current determines the transition from Absorption stage to Float stage. If an
external DC load is connected to the battery bank, a higher current setting is recommended to
compensate for the extra current drawn from the external DC load.
• In order to avoid the tripping of the external AC Source Branch Breaker, when high powered AC loads are
connected to the AC Output, the charging current will automatically be reduced so that the total AC Input
current (AC Output Current + AC Charger Current) is maintained below the set values of the AC Input
Circuit Breaker (Cbr). See more details in AC Source Circuit Breaker Function.
Note: When the battery charging process start, the unit will first measure the battery voltage, if it sense the
battery voltage is below 9.5V, the charger current is automatically reduce to < 25A. It will resume back to
the set charger current when the battery is charge to above 9.5V in 15 minutes. See more details on
section Understanding on Unit Error code (E01 and E11).