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78
Freedom SW Owner’s Guide
Battery Charging Reference
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.
NOTE:
When the charge cycle is interrupted, the charger will restart charging at
the beginning of the multistage algorithm.
Exit Current Threshold can be effectively disabled by programming the
amp-hour capacity to the minimum. In this case, absorption will only exit
once the Max Absorption timer expires.
Charge current during equalize state (optional state not shown here) is
normally limited to 10% of the programmed amp-hour capacity setting. If
this setting is programmed to the maximum, the charge current during
equalize is instead limited to whatever is programmed for the maximum
current limit of the unit.
Synchronized charge states are active when more than one charging
device is connected in the system via the Xanbus network.
• The first unit (Freedom SW) to enter bulk, causes all other chargers to
enter bulk.
• The first Freedom SW to enter absorption causes all other Freedom
SWs to enter absorption.
• The last Freedom SW ready to exit absorption triggers all Freedom
SWs to exit absorption and exit charge.
Table 19
Preset Bulk Voltage Settings
Battery
Type
Termination Voltage
Preset Bulk Voltage
12V
models
24V
models
12V
models
24V
models
Flooded
14.2
28.4
14.4
28.8
Gel
14.0
28.0
14.2
28.4
AGM
14.1
28.2
14.3
28.6
Custom
14.4
(changeable)
28.8
(changeable)
14.4
(changeable)
28.8
(changeable)
FSW Owners Guide.book Page 78 Tuesday, August 7, 2018 9:03 AM
Summary of Contents for Freedom SW Series
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