2-1 Battery Charging Curve
BULK(CC)
14.4/28.8 V
13.8/27.6 V
12.8/25.6 V
Current
Voltage
Return amps = 6.25% of rated current
2 min~8 hours
Reduce charging time
by charging at maximum
Charging stage
current
(Constant current mode)
Charging spec
Charging at rated current
2-1-1 Bulk Stage (Constant Current)
At the beginning of the charging process, the flat battery is charged at constant current (maximum charge
current) until the battery voltage reaches the set charging voltage (Refer to 3-2 charging mode setting).
2-1-2 Absorption Stage (Constant Voltage)
The absorption charging duration will depend on the battery status.
Before moving to absorption stage, charger will wait for two minutes then charging at constant voltage until the
battery is fully charged.
Once the battery is fully charged or the charging current is below 6.25% of the rated charging current for 15
minutes, then the absorption stage ends.
2-1-3 Float Stage
After absorption stage, the battery charger switches to float stage, maintains the battery at 100% charge without
overcharging or damaging the battery. This means the charger can be left connected to the battery continuously.
2-1-4 Recondition stage
Every 12 days, the battery charger switches back to Bulk stage for 85 minutes in order to revive the battery. This
prevents any fatigue symptoms such as sulphation.
ABSORPTION(CV)
BULK
ABSORPTION
0.25 hours~24 hours
Make sure the battery is fully
charged without overcharging
(Constant voltage mode)
14.4V / 28.8V until the current
drops to 6.25% of rated current
FLOAT
RECONDITION
FLOAT
RECONDITION
2 Weeks
Maintain the
battery at
Reconditioning the
100% charge
battery
condition
Stay at
14.4V / 28.8V with
13.8V / 27.6V
rated current
- 2 -
English
FLOAT
FLOAT
85 min
2 Weeks
Maintain the
battery at
100% charge
condition
Stay at
13.8V / 27.6V
Rev. 06/2016
BULK(CC)
BULK
2 min~8 hours
Once battery voltage
is below 12.8/25.6V,
after 30 seconds, ACH
will turn from FLOAT
to BULK