AC300+B300: Can I add B500K to expand capacity?

Hello BLUETTI community,
I currently have an AC300 with one B300 battery. I’m looking to expand my system capacity and wondering about compatibility.
My question - сan I add a B500K battery to my existing AC300+B300 setup? Will they work together in the same system?
I understand that B500K is officially compatible with AC300, but I want to confirm.

Will AC300 properly manage both B300 (3.072 kWh) and B500K (5.12 kWh) connected simultaneously? Are there any firmware requirements or limitations I should be aware of?
Do I need any special cables or adapters beyond what comes with B500K?

Thank you in advance for your help!

Yes you can connect B500K in your system