Solar & Wind Priority

Victron inverter/charger such as Multi, MultiCompact, MultiPlus, MultiPlus-II or Quattro with new microprocessor (26/27).

Solar, preferably a Victron solar charger, but not necessarily, or a wind generator with a designated charger. Note that Victron does not supply charge regulators for wind.

To use the 'Charge the battery to 100%' feature, either a VE.Bus Smart Dongle + VictronConnect App, which is an effective and simple monitoring solution; easy to retrofit onto existing systems, is needed, or the more advanced option, a GX device like the Cerbo GX or Ekrano GX.

While in sustain mode, the inverter/charger uses shore power to ensure the battery voltage does not drop below the configured sustain voltage.

For charging the battery, as well as powering DC loads, solar and wind are prioritised. For AC loads that is not the case; shore power will be used to power them, which in many systems is not really an issue since they are rather small. If you prefer to also power AC loads from the battery, solar and wind, look into our Ignore AC input options in VictronConnect, available as the 'Conditional AC input connection' settings menu. Also described in detail in this blog post on Panbo.com.

The feature works purely on voltage, making it simple, robust and effective. It does not require an integration with battery monitors, GX devices or central control mechanisms such as DVCC.

The Solar and wind priority mode works for systems with a managed battery, where a BMS manages the charging process (DVCC) and more traditional systems where the inverter/charger runs its own charge process. Examples of managed battery systems are Lynx Smart BMS, MG Energy Systems batteries with MG Master LV, and similar. For such systems, during those first seven days, the inverter/charger will charge using the configured sustain voltage rather than the battery-commanded charge voltage (CVL).

Generator support: The system will automatically detect that a generator is running and then charge at full power as usual. For Quattros, it requires the generator to be wired to the AC-in-1 input. In case of Multis with an external transfer switch wired in front of it, the GX device can be used to detect if the generator is active (with a digital input) and pass that information along to the Multi. When using a Digital Multi Control panel (DMC) and closing the generator select input terminals of the screw connector on the backside, the system will charge at full power also.