Product Manual

26
The J35 intelligently controlled charging algorithm, automatically sets charging
parameters so that the caravan battery will maintain the best state of health. The
charging modes include:
CHARGING MODES
Soft Start Mode
Charging current is maintained at 10A until the battery voltage reaches 12V or soft
start timeout (see table 7) occurs.
Boost Mode
A feature of the J35B-L and J35D model only, current is boosted to 30A to bring
the battery voltage up to 14V, after which charging proceeds to Bulk Mode.
Bulk Mode
Charging current is maintained at 15A until the battery reaches the Bulk voltage
(see table 8), after which charging proceeds to Absorption Mode
Absorption Mode
Battery is charged at Absorption voltage until the current drops below 2A or
Boost-Bulk-Absorption timeout occurs.
Float
Charging current is limited to 10A to keep the battery level topped up. Charging
will remain in Float for 6 hours. After Float timeout, the J35 will enter back into
Boost-Bulk-Absorption modes.
Table 8: Battery charging management algorithm voltages and currents
Charge Mode
Voltage Limit (V)
Lead Acid Battery
Voltage Limit (V)
LifePO4 (J35B-L and
J35D Only)
Current Limit (A)
Soft Start 12.0 12.0 10
Boost (J35B-L and
J35D only)
14.0 14.0 30
Bulk 14.4 14.6 15
Absorption 14.4 14.6 15
Float 13.6 13.6 10