Older Growatt SPF 50000TL HVM Without BMS/CanBus/RJ45 Port to connect LI batteries

[Basselaz]

Hello...
I have an older Growatt SPF 50000TL HVM that doesn't have neither a BMS or a CanBus or an RJ45 Port... I currently have two inverters connected in parallel for 10Kw output and Flood Lead Acid batteries

I want to upgrade to Lithium but found out that i have none of the above ports for safe communication with the batteries. Is there a way to connect Lithium batteries safely to my current setup? Adding external BMS or something? Any support will be appreciated
Bassel

 

[sunshine_eggo]

Most inverters running lithium don't have BMS communications with the inverter. All Li Batteries must have their own BMS.

 

[Basselaz]

Thanks for the clarification... But why then do the new inverters have these bms ports in them?

 

[sunshine_eggo]

Thanks for the clarification... But why then do the new inverters have these bms ports in them?

For BMS communications with compatible batteries.

BMS communication is a feature, not a requirement.