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Operating in Grid Mode
64
Freedom XC 2000 (230VAC) Owner's Guide
Bulk Stage
Bulk charge is the first stage in the charging process and provides
the batteries with a controlled, constant current. Once the battery
voltage rises to the absorption voltage threshold, the charger
switches to the absorption stage.
Absorption Stage
During the absorption stage, the Freedom XC begins operating in
constant voltage mode and the current falls gradually as the Ah is
returned to the battery.
Battery Type
Preset Absorption Voltage
Flooded
14.0V (Hot), 14.4V (Warm), 14.8V (Cold)
Gel
13.8V (Hot), 14.2V (Warm), 14.6V (Cold)
AGM
14.0V (Hot), 14.3V (Warm), 14.6V (Cold)
LFP
14.6
Custom
14.6 (default),
changeable between 12.0 to 17.0
Table 11 Preset Absorption Voltage Settings
The Freedom XC transitions to the float stage if either one of the
following two conditions are met:
The charge current allowed by the batteries falls below the exit
current threshold, which is equal to 10% of the programmed
charge current and a minimum of 2A.
The Freedom XC has been in absorption for the programmed
maximum absorption time limit. The default is 6 h.
NOTE
: If there are DC loads on the batteries, the charger’s
current may never decrease to a level to initiate the next stage of
charging. In this case, the charger would stay in absorption until
the Absorb Time setting is reached.
Float Stage
Float charge maintains the batteries slightly above the self
discharge voltage of the batteries. The charge current in float is
the current necessary to maintain the batteries at the Float
Voltage setting, limited only by the inverter/charger's capability or
other settings that limit the inverter/charger's maximum charge
rate. Float charging reduces battery gassing, minimizes watering
requirements (for flooded batteries), and makes sure the batteries
are in a constant state of readiness. The charger automatically
switches to the float stage after the batteries have received a bulk
and absorption charge (see
). The batteries are
maintained at the default float voltage level for the selected
battery type or the voltage selected under Float Voltage on the
Custom Battery Settings menu.
Battery Type
Preset Float Voltage
Flooded
13.5
Gel
13.8
Table 12 Preset Float Voltage Settings
Summary of Contents for Freedom XC 2000
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