Had almost the exact same grief last winter on the narrowboat. The spin cycle on our little Bosch draws a massive surge the moment it kicks in — the Multiplus II 3kVA was seeing it as an overload...
@LochChild had almost identical grief last winter on the boat. 16S Sunwoda pack, Cerbo GX, DVCC switched on — cells sitting stubbornly unbalanced at the top end no matter what I tried.
The thing...
Spot on about the peak draws—that's what did for me on the narrowboat. I went through two Waeco units before realising the startup surge was hammering my battery management system.
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