Ve.direct Port; Battery Charging; Adaptive 3-Stage Battery Charging; Flexible Charge Algorithm - Victron energy SmartSolar MPPT 100/30 Manual

• A GX device
• The VRM Portal (GX device or
• The MPPT Control - an external display that connects to the VE.Direct port (the VE.Direct cable is not included with the MPPT
Control)

3.7. VE.Direct port

The VE.Direct port is used to communicate with the solar charger. It can be used for several purposes:
• To connect to a monitoring device, such as a GX device or the GlobalLink.
• To connect with the VictronConnect App.
• For external control.
Special cables or interfaces are needed to connect to this port:
• VE.Direct cable - used to connect to a GX device or the GlobalLink.
• VE.Direct to USB interface - used to connect via USB to the VictronConnect App.
• VE.Direct Bluetooth Smart dongle
• VE.Direct TX digital output cable
• VE.Direct non inverting remote on/off cable

3.8. Battery charging

3.8.1. Adaptive 3-stage battery charging

The solar charger is a 3-stage charger. The charge stages are: Bulk – Absorption – Float.
Bulk
During the bulk stage the solar charger delivers the maximum charge current, to rapidly charge the batteries. During this stage
the battery voltage will slowly increase. Once the battery voltage has reached the set absorption voltage, the bulk stage stops and
the absorption stage will commence.
Absorption
During the absorption stage the solar charger has switched to constant voltage mode. The current flowing to the battery will
gradually decrease. Once the current has dropped below 2A (tail current), the absorption stage stops and the float stage will
commence.
When only shallow discharges occur the absorption time is kept short. This to prevent overcharging of the battery. But if the
battery was deeply discharged, the absorption time is automatically increased, to make sure that the battery is fully recharged.
Float
During the float stage the voltage is reduced and batteries full charged state is maintained.
A storage stage is not needed for a solar charger, unlike is the case for an AC charger, since at night there is
no solar power, so battery charging will stop.

3.8.2. Flexible charge algorithm

The VictronConnect App allows selection of 8 pre-set charge algorithms, or alternatively the charge algorithm is fully
programmable. The charge voltages, stage duration and the charge current can be customized.
In addition to this, 8 pre-programmed algorithms can be set with a rotary switch.

3.8.3. Equalization charging

Some lead-acid battery types need a periodic equalization charge. During equalization the charge voltage will be increased above
the regular charge voltages to achieve cell balancing.
If an equalization charge is required it can be enabled using the VictronConnect App.
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MPPT solar charger manual
GlobalLink 520 needed)
- used to connect via Bluetooth to the VictronConnect App.
- used for streetlight control or to create a virtual load output.
- used to remotely switch the solar charger on or off.
Features