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Although the MPPT Control can connect to the solar charger, consider using a SmartSolar control display
instead.
5.2. All settings explained
This chapter lists all solar charger settings that are user-configurable and also explains how to update firmware of the solar
charger.
Do not change settings unless you know what they are and what the effect of changing these settings will
be. Incorrect settings may cause system problems including damage to batteries. When in doubt, seek advice
from an experienced Victron Energy installer, dealer or distributor.
5.2.1. Battery settings
Battery voltage
The battery voltage is automatically detected at the very first power-up of the solar charger and the battery voltage is set
accordingly. Further automatic detection is disabled. To make sure that a stable measurement is used, the charger first waits 10
seconds, and thereafter takes an averaged measurement. Note that the solar charger will remain off during this time.
In case the solar charger does not measure a battery voltage, it will default to 12V and store that. This will happen if the solar
charger is powered via its PV terminals, while not connected to a battery.
Note that the solar charger will not automatically detect a 36V battery. This will need to be set manually.
After automatic detection has taken place, the battery voltage can be changed and set to 12, 24, 36 or 48V, if so required .
Tip:
If the firmware of the solar charger needs to be updated, while keeping the automatic voltage detection active,
for example before shipping the unit to an end-user, do the following:
• Update the firmware.
• Once the firmware update is complete, go to the settings page in the VictronConnect app.
• On the settings page, click on the three vertical dots in the upper right corner and select "Reset to defaults"
from the drop-down menu.
• Un-power the solar charger within 10 seconds.
The next time that the unit is powered up, it will perform the initial automatic voltage detection.
Max charge current
This setting sets the maximum battery charge current. It is by default set to the maximum solar charge current.
Page 19
MPPT solar charger manual
Configuration and settings
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