Setting up a SmartSolar MPPT controller for a Roamer LiFePO4 lithium battery

The Victron SmartSolar is a series of MPPT controllers ranging from the 75/10, all the way to the 450/100.
They all have the same basic features and setting them up can be done in as little as 60 seconds.

• Smartphone or Laptop with bluetooth connectivity

• The VictronConnect app installed

• Victron SmartSolar MPPT Controller

It is important to connect the MPPT controller to your battery first, and then the PV (solar panels) after the unit has been set up and configured for your battery type. Connecting the PV panels without a battery connected can cause damage to the MPPT controller.

Open the VictronConnect app, and connect to your new SmartSolar. You might be prompted to change the PIN code, or the PIN code may not be "000000"; in which case it will be printed on the label on the side of the SmartSolar.

Tap on the settings icon in the top right.

Tap on Battery.

Ensure the Battery voltage is set to the nominal voltage of your battery.

If you need to change this, a box will appear with a code you'll need to type into the text box in order to confirm you are changing the voltage setting.

This is because changing this setting can very quickly damage your batteries and cause safety issues if you change this to the wrong voltage.

Max charge current should be set to the maximum possible on most systems. You should reduce this if you have more charging power than your batteries can cope with, ensuring the batteries are only ever charged at a maximum of 1C (1x the capacity in Ah) when ALL charging sources are running at maximum output.

Charger enabled should be enabled.

Tap on Battery preset, then tap on Select preset, and select the Smart Lithium LiFePo4 preset.

Press OK.

Toggle "Exper mode", and tap "OK" on the popup.

Change the settings to match the image below:

NOTE: The Absorbption voltage of 14.4V is for SMART4 batteries. If you have a SMART3 battery or older, please set this to 14.2V.

Press the back button.

Tap on Load output.

If your controller does not have a 3rd pair of terminals on the bottom labelled "Load", then you can happily select "Always off".

If your controller does have a Load output, then you might not be using it (if there's not cables attached), in this case, you can happily select "Always off".

Turning this load output off can save you up to 40Wh per day, so its well worth turning off if not used.

If you happen to have cables connected to this Load output, then you might have a non-standard setup, in which case, contact Roamer for guidance.

Proceed with this ONLY if your system does NOT have a GX device. This is usually a Cerbo GX or Ekrano GX.
If you have a GX device on your Victron system, then you should use DVCC instead. Contact Roamer for more information on this, or book a system configuration: Book Here

Tap on "VE Smart networking" in the main settings menu.
Tap on "JOIN NETWORK", and select your previously created VE Smart network (we recommend using the SmartShunt / BMV to broadcast the network, as this is reading the voltage closest to the battery).

All done, your SmartSolar is now set up for use.
For any help or support, contact Roamer: support@roamer.com