A recurring problem I’ve seen is charge-slots being missed when the SoC of my battery is greater than 80% (is this % user configurable?), then my car charger kicks in & dumps the contents of my house battery into the car, instead of continuing to use subsequent cheap half-hour slots. This isn’t strictly a WW issue, but the hold charge idea suggested above, would provide a neat work around. At present I can temporarily increase the min. SoC in my Growatt portal to 100%, to stop any discharge while the car charges, but this is hardly a practical solution going forward, as I always forget to reset the min. SoC to 10% after, so we can use the battery again!
I assume other Agile users with both house & car batteries to charge must have come across this, when the car takes longer to charge than the house battery and WW has selected non-continuous slots?