I brought my products from offgrid PS and followed the DC-DC install guide and then used the enclosed to bypass the split charge relay.If you have a split charge relay still connected it will be effectively bypassing the B2B, you need to disable it.
Installing a Relay alongside a DC-DC Charger — Offgrid Power Solutions
If you’re installing a DC to DC charger into a motorhome, you should consider installing a relay to bipass the existing electrical system. This article is a must-read as it explains how to install a bypass (change-over) relay alongside your DC-DC charger. It also includes a comprehensive list of com
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I know it’s something I have done or the settings on the system - just need to spend the time to figure it out