Setting up an NDS SunControl2 (SC320M/SC350M) for use with a Roamer LiFePO4 lithium battery

Edited

This guide covers SC320M & SC350M models only, if you have a different model, please see our other guides.

How do I change the settings?

The settings are pre-programmed into the SunControl series MPPT controllers. Profiles can be selected with the DIP switches circled in orange on the image below.

Settings

This one is really simple for a Roamer battery, set the switches to OFF-ON-OFF (Up-Down-Up).

This charges to 14.4V absorption, and 13.5V float phase.