Multiplus-II 3000W 230V with a 100Ah Leoch Lithium battery without using any GX devices

DIY
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1

Is it possible to connect a Multiplus-II 3000W 230V with a 100Ah Leoch Lithium battery without using any GX devices? If a GX device is necessary for battery monitoring and communication with the Multiplus, what is the minimum GX device required for a system with just one 100Ah battery

2

If the battery has a proper bms you could do without, but i wouldnt recommend ist
Easiest is a multiplus 2 GX version of the mp 2 3k