Paul Cross

Been wrestling with external control settings on MPPT chargers myself, particularly when integrating with monitoring systems via VE.Direct.

Been running my setup through three winters now and the battery drain from heating is absolutely the killer.

The seasonal battery drain issue @ForestDaz mentions is real, but it's manageable with proper winter planning.

I'd second the instrumentation point @SimonKelly raises—absolutely critical. Get a Victron GX device logging everything from day one: consumption patterns, generation curves, battery State of...