Victron energy Isolated SmartSolar MPPT RS 450/100 Manual page 14

Battery voltage Vb (@start-up)
> 11.9 V Vb < 12.2 V
> 12.2 V Vb < 12.6 V
Vb > 12.6 V
The multiplier is applied to the maximum absorption time setting and this results in the maximum duration of the absorption period
used by the charger. The maximum absorption times shown in the last column of the table are based on the default maximum
absorption time setting of 6 hours.
Maximum absorption time (hh:mm)
Set the absorption time limit. Only available when using a custom charge profile.
Enter the time value in the notation hh:mm, where hours are between 0 and 12; and minutes are between 0 and 59.
Float voltage
Set the float voltage.
Re-bulk voltage offset
Set the voltage offset that will be used over the float voltage setting that will determine the threshold that the charge cycle will
restart.
E.g.: For a Re-bulk voltage offset off 0.1V and a float voltage setting of 13.8 V, the voltage threshold that will be use to restart the
charge cycle will be 13.7 V. In other words, if the battery voltage drops below 13.7 V for one minute, the charge cycle will restart.
Equalization voltage
Set the equalization voltage.
Equalization current percentage
Set the percentage of the Max charge current setting that will be used when equalisation is performed.
Automatic Equalization
Set-up the frequency of the auto equalize function. Available options are between 1 and 250 days:
• 1 = daily
• 2 = every other day
• ...
• 250 = every 250 days
Equalization is typically used to balance the cells in a lead battery, and also to prevent stratification of the electrolyte in flooded
batteries. Whether (automatic) equalization is necessary, or not, depends on the type of batteries, and their usage. Consult your
battery supplier for guidelines.
When the Automatic equalization cycle has initiated, the charger applies an equalization voltage to the battery as long as the
current level stays below the equalization current percentage setting of the bulk current.
Duration of the Automatic equalization cycle
In the case of all VRLA batteries and some flooded batteries (algorithm number 0, 1, 2 and 3) automatic equalization ends when
the voltage limit (maxV) has been reached, or after a period equal to (absorption time/8) - whichever comes first.
For all tubular plate batteries (algorithm numbers 4, 5 & 6); and also for the user-defined battery type, automatic equalization will
end after a period equal to (absorption time/2).
For the Lithium battery type (algorithm number 7), equalization is not available.
When an automatic equalization cycle is not completed in one day, it will not resume the next day. The next equalization session
will take place according to the interval set in the 'Auto Equalization' option.
The default battery type is a VRLA battery and any user-defined battery will behave as a tubular plate battery with regard to
equalization.
Equalisation stop mode
Set how the equalisation will end. There are two possibilities, first is if the battery voltage reaches the equalisation voltage and the
second is on fixed time, where the maximum equalisation duration is used.
Maximum equalisation duration
Set the maximum time that the equalisation phase will last.
Page 12
Isolated SmartSolar MPPT RS
Multiplier Maximum absorption times
x 2/3 04:00 hours
x 1/3 02:00 hours
x 2/6 01:00 hours
Installation