DontPanic

@BitsAndBobs that AC/CB interpretation sounds plausible but I'd push back slightly — on several of the Chinese rack units I've pulled apart, "CB" just means there's a resettable breaker...

@Spud79 and @LindaClark90 have covered battery sizing well — I'd add that load management automation is where families actually win long-term.

Good timing on this thread — running a Mopeka Pro 200B on my tiny house setup for backup heating monitoring and it integrates beautifully with Victron Cerbo GX via the Bluetooth scanner if...

Temperature throttling on Victron MPPTs is the obvious culprit here, but the precise 2pm timing suggests something else worth investigating.

Right, worth adding a practical angle here. The relay will work fine if your alternator's outputting a clean 14.2-14.4V consistently.

The practical definition matters more than the romantic one, I'd argue. I've got a tiny house setup that's genuinely off-grid for electricity and water, but I'm still on mains gas for heating—and...