Compatibility can be software-bound
Modern hybrid systems exchange state-of-charge, current limits, alarms and operating commands over manufacturer-defined communications. A battery and inverter can have the right voltage range yet still be unsupported until a required firmware version is installed.
Collect four identifiers
Before buying, record the exact battery model, inverter model, firmware version and communications accessory or interface. Then compare them with the manufacturer’s current compatibility matrix or product manual.
Do not treat “CAN” as universal
Two products may both use CAN or RS485 while speaking different protocols. A matching connector and bus type do not prove that the devices understand each other.
Plan updates before commissioning
Some systems update batteries through the inverter; others require an installer app, gateway or staged firmware. Confirm internet requirements, installer permissions and rollback/support procedures before site handover.
Preserve the evidence date
Compatibility matrices change. Melnti records the source and checked date so a recommendation can be revalidated rather than silently treated as permanent. Pair this guide with the SMA Home Storage checklist for a concrete example.