This thread's hitting on something I wish I'd grasped sooner. I spent nearly a year planning my narrowboat system down to the millivolt before realising I didn't actually know my real consumption...
Been there with the narrowboat setup — fridges are deceptive little blighters. The thing most people miss is the startup surge, not the running watts.
Your 48V Victron system's a decent...
You've landed in exactly the right spot. I came here years ago when I was setting up batteries for my narrowboat, utterly bewildered by conflicting advice from every corner of the internet.
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