Victron energy Blue Smart 12/4 Manuel page 26

The additional settings in the advanced menu with expert mode enabled include:
a) Charge Voltage
i. BatterySafe
The BatterySafe setting allows the BatterySafe voltage control to be enabled or disabled.
When BatterySafe is enabled, the rate of battery voltage increase during bulk stage is
automatically restricted to a safe level.
In cases where the battery voltage would otherwise increase at a faster rate, the charge
current is consequently reduced to prevent excessive gassing.
b) Bulk
i. Bulk time limit
The bulk time limit setting restricts the maximum time the charger can spend in bulk stage
as a protection measure, since the absorption voltage should have been achieved by this
time. If the bulk time limit is satisfied the charger will move directly to float stage.
ii. Re-bulk current
The re-bulk current setting is the charge current limit that will trigger a new charge cycle if
exceeded during float or storage stage, causing the charger to move back into bulk charge
stage.
Note that even when the re-bulk setting is disabled, re-bulk will still occur if the charge
current is maintained at the maximum charge current for 4 seconds.
c) Absorption
i. Adaptive absorption time
The adaptive absorption time setting allows selection between adaptive absorption time (if
enabled) or a fixed absorption time (if disabled).
ii. Absorption time
The adaptive absorption time setting enables the maximum adaptive absorption time or the
fixed absorption time to be configured (depending if adaptive absorption time is enabled or
disabled).
iii. Repeated absorption
The repeated absorption time setting enables the elapsed time between each automatic
refresh charge cycle (1h in absorption stage) to be configured.
d) Recondition
i. Recondition stop mode
The recondition stop mode setting allows selection between the recondition stage being
ended upon the battery voltage reaching the recondition stage voltage setpoint or a fixed
time period.
ii. Recondition duration
The recondition time setting enables the maximum recondition time or the fixed recondition
time to be configured (depending on the recondition stop mode selected).
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