Do I need to do some special settings if I want to connect an Adapter Box G2 and the EV Charger both to solax inverter ？

Taking the X1/X3 Hybrid G4 series inverter as an example, you need to make the following settings in the inverter: “Advancd”→“Modbus”→"CommFunSelect", select "EVC&AdaptBoxG2.There are two wiring methods: Method 1: Connect the EV Charger to the RS485 port on the Adapter Box G2. Method 2: Use an RJ45 splitter to connect the Adapter Box G2 and EV Charger.

About the details solution, please refer to this link: https://kb.solaxpower.com/solution/detail/2c9fa4148ceddee5018e736972461fe1