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Battery expansion question - Solis / Pylontech

  • 14-04-2023 8:39am
    Registered Users Posts: 14

    Hi there,

    I currently have a 5kw solis inverter connected to a single 3.6kwhr pylontech battery.

    I am looking to add 2x 4.8kwhr pylontech batteries to this setup.

    inverter has a max charge/discharge of 100A and cables are rated for 100A continuous with a 125A breaker between battery pack and inverter.

    Am i correct in thinking that since the inverter has a max charge/discharge of 100A then the existing cables and fuse will suffice even if the batteries themselves have the potential to discharge at higher amps?

    So the upgrade would be to add the 2 extra packs as per diagram (assuming space in cabinet), set one of the new packs to be the master and possibly some adjustments of inverter settings?

    I might get installer/electrician to do this, but just want to be armed with facts for what needs to be done in advance.

    Thanks for any input!