I have an exisiting 24v 3000va Multiplus II.
I need more battery capacity and power so want to combine a 48v multiplus II and battery.
I was thinking to use the exiting system as an AC input to the 48v Multiplus II. Will this work?
Thats known as a cascade system. So use that term when researhcing some more.
There are plenty people who do it. It is well discussed on the forums and shown on you tube.
The obligatory this is not an officially supported set yp warning applies. So trouble shooting help comes from elsewhere.