FOXPOWER FULAGDA1512A, User Manual

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Key Features Explained
Multi-Stage Charger
Bulk Charging: This is the initial stage of charging. While Bulk
Charging, the charger supplies the battery with controlled constant
current. The charger will remain in Bulk charge until the Absorption
charge voltage (determined by the Battery Type selection) is
achieved. Software timer will measure the time from A/C start until
the battery charger reaches 0.3V below the boost voltage, then
take this time as T0.
Absorb Charging: This is the second charging stage and begins after
the absorb voltage has been reached. Absorb Charging provides
the batteries with a constant voltage and reduces the DC charging
current in order to maintain the absorb voltage setting. In this
period, the inverter will start a T1 timer; the charger will keep the
boost voltage in Boost CV mode until the T1 timer has run out.
Then drop the voltage down to the float voltage. The timer has a
minimum time of 30 Mins and a maximum time of 45 Mins.
Float Charging: The third charging stage occurs at the end of the
Absorb Charging time. While Float charging, the charge voltage is
reduced to the fl oat charge voltage (determined by the Battery
Type selection*). In this stage, the batteries are kept fully charged
and ready if needed by the inverter. If the A/C is reconnected or
the battery voltage drops below 12Vdc/24Vdc, the charger will
reset the cycle above.
If the charge maintains the float state for 10 days, the charger will
deliberately reset the cycle to protect the battery.
Figure 1
Charge Mode LED will be orange during this stage
Charge Mode LED will blink orange during this stage
Charge Mode LED will be green during this stage