Enabling LYNK II to Communicate with GROWATT Devices

When properly connected to a closed-loop network and set to use the GROWATT protocol, LYNK II will transmit real-time parameters from the Discover Lithium battery, including voltage, current, temperature, state of charge, and fault conditions, to a GROWATT inverter-charger. LYNK II will also transmit charge voltage and current requests from the Discover Lithium battery to a GROWATT inverter-charger.

LYNK ACCESS software for 64-bit Windows 10 / 11 is required to configure LYNK II settings for closed-loop CAN communication with GROWATT inverter-chargers.

If there is a break in communication between the LYNK II and the inverter-charger for more than ten seconds, the inverter-charger will safely stop operation, so long as the Lithium option is selected in the Battery Settings on the GROWATT inverter-charger. The inverter-charger will display a fault if communication is lost. The GROWATT inverter-charger will resume closed-loop operation if communication is re-established. However, if communication cannot be reestablished, you may have to manually convert the GROWATT inverter-charger to an open-loop configuration to resume operation. Refer to GROWATT Open-loop Configuration.