After testing and reading through Victron documentation, it appears the Victron EV charger does not function as an off-grid EV charger. This is a little disappointing as one would assume the charger could function in auto mode, as indicated in the product description, to prevent the battery from being discharged below a certain SOC, when used off-grid. It appears the auto function is only operational when the system is used in AC-coupled ESS configuration (grid-connected).
System specs:
- Multiplus2 5KVA, 7.4kW DC-coupled solar, 16kWh self-managed LFP
- Victron EV charger - Firmware version 1.23
- CCGX
Unless I have somehow configured it incorrectly, it appears a regular EV charger could do a similar job. I have read that Victron is working on an improved algorithm, and I'm assuming this would address the lack of off-grid functionality.
As indicated in the attached photo, the EV charger will not function in auto mode even when the batteries are full, and there is ample generation. It just indicates "waiting sun"
