March 22, 20251 yr On 2023/07/22 at 2:26 PM, Pule Babie said:Hi CoenieF, If you have 1 inverter and one battery, you can use a normal computer network cable (i.e. straight-through cable). Plug one end of the cable to the BMS port on the Growatt and the other end to the first RS485 port on the N-Energy battery. Then set your inverter to Lithium by changing "Program 5" to Li. That is working for me. The inverter is communicating with the battery and getting it's correct voltage and SOC levels.The challenge I am having to connect multiple batteries together to the inverter.As soon as I connect a BMS cable between the two batteries, the inverter reports BMS communication error and cuts off the power.I am guessing that the pinout of battery to battery BMS connection is the problem. A straight-through cable doesn't work on this case and I am not sure where to find the cable that can work.Anyone please help.What comms protocols do you use? It's between L01 and L50?
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