Orion XS 50A DC/DC Charger 12/12 - Headlights flickering on van

Q&A and troubleshooting
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Hello all,

I’ve recently replaced an Orion 12/12 30 Non-Isolated charger with the Orion XS 50A DC/DC Charger on a VW Crafter van conversion.

When the engine is running, the headlights now flicker. I’ve tried lowering the amperage down from 30A and it still makes them flicker, no matter how low. The flickering only stops when I disable charging on Victron connect. There’s no obvious signs of loose connections etc.

This didn’t happen when it was a 12/12 30 pulling 30A, so not convinced it’s alternator or start battery issue.

Any suggestion as to what is causing and how to remedy?

Thanks