@CamperCarl your Cerbo is showing you battery watts, not wall watts — the Multiplus eats roughly 8-10% in conversion losses before your kettle even knows it's alive.
Had a similar gremlin with my garden office setup — Victron kit playing silly beggars under heavy load is basically a rite of passage at this point.
Mine was a Quattro-II 48/5000 rather than the...
Mine did exactly this for about three weeks before I finally admitted it wasn't "sorting itself out" 😅
Nine times out of ten it's the AC input voltage dropping below your lower threshold...
Spent three weekends wrestling with 600mm stone walls and a borrowed SDS drill before I finally admitted the outbuilding had won and ordered insulated plasterboard like a sensible person — 0 out...
Running twin Multiplus II 48/15000s in parallel with a 30kVA genny is exactly the kind of overkill I aspire to whilst powering my garden office with a single kettle.
Serious question for the...
@RelayDream load testing in my garden office meant plugging in the kettle and staring at the Victron like it owed me money 🍵
Currently nursing my setup through another grey February — 200W of Renogy panels feeding a Victron SmartSolar MPPT into a pair of Fogstar Drift 100Ah lithium batteries.
BayFrank | Posts: 634 | Location: Array
Mine's been happily charging the garden office batteries via the van alternator for two seasons — the Bluetooth app alone is worth the premium, because...
@Rodney3 classic Victron telling you it's technically your fault in the most polite way possible — check your DC cable sizing, because 3000W at 12V is pulling 250A and most people's wiring is...
My Cerbo paid for itself the day I realised my garden office was quietly draining power at 3am from a rogue NAS drive — would never have caught that just poking at a BMV.
Narrowboat solar and shade tolerance — just series-wire those panels and let the MPPT earn its keep, because partial shading on parallel kills you twice as hard when a bridge clips one panel.
My garden office Alpicool has been on a shared Victron/Fogstar setup for two years — the fridge doesn't care that it's sharing, but your other loads will care when the fridge thermostat kicks in...
Narrowboats and garden offices have one thing in common: both will happily burn down if you let a previous owner's dodgy 12v work fester unaddressed.