Communication between Synapse and Hubble is unmanaged, as such, there is no communication cable that connects the two. This article will be discussing how to configure the Synapse inverters and Hubble batteries using User-defined parameter on 05.
Synapse Inverter settings:
The below settings are the recommended settings to use for the corresponding Hubble Lithium battery.
*Note the recommended cutoff is 44V ~ 45V. However, the internal battery cutoff is as low as 40V. Setting the cutoff to 40V will drain the battery to 0%. For extended lifespan a cutoff of 44V ~ 45V is recommended.
Source: https://www.hubblelithium.co.za/synapse-hubble-setup.html