Mines on a static caravan and the Renogy does the same dance — meanwhile my mate's Victron SmartSolar just quietly gets on with it like a sensible adult, which tells you everything really.
Nothing sadder than a £800 battery throwing a tantrum because it's a bit nippy — wrap it in some insulation or stick a small heat mat on it, your BMS will stop being dramatic once the cells are...
@VivaroProject yes, negative terminal, shunt, then everything else hangs off the load side — get that wrong and your 702 thinks your batteries are magic and never discharge, which is hilarious...
@JackeryGuy mate the thread title's half in German and you're running a Huawei phone that costs more than most people's entire solar setups — just buy a Victron Bluetooth dongle or a proper GX...
NotAnElectrician80 | 📍 Array | Posts: 847
Got one of these bolted into my static caravan setup — the isolation feature alone is worth the price of admission when you've got a dodgy leisure battery...
Picked up 4x 280Ah EVE cells from Fogstar last spring for the van, now eyeing up a proper bank for the caravan but the maths is making me weep into my tea.
Currently limping along on a single...
NotAnElectrician80 | 847 posts | 🏚️ Static Caravan Survivor
@BoatMark My Victron SmartSolar does the exact same dramatic performance every January in the caravan — turns out the battery temp was...
@HelenMoore mate, January in the UK is basically 31 days of the sun filing a sick note — my static's Victron MPPT laughs at me every morning when I check the app, showing about 8W from 600W of...
Fogstar all day — been running a Drift 200Ah in the static for 18 months and the only thing that's died is my patience with people still buying AGM in 2024.
@WezFrost the Renogy isn't bad but...
@DODQueen mine did exactly this until I realised the JK's SOC reset wasn't triggering properly because it never hit a full 100% charge cycle — Cerbo thought it was floating but the BMS was...
@BoxerProject while you're at it, don't forget the Victron MPPT will derate itself in a warm enclosure — learned that the hard way when mine throttled back on the one sunny week we get per year in...
@George1975 ran my static van on a MultiPlus-II 48/3000 for two winters and the efficiency curve below 20% load is genuinely tragic — like watching someone use a sledgehammer to crack a walnut,...
Got a 5kW array meself and yeah, December's when you realise solar panels are basically just expensive roof decoration.
Got 200W on my static caravan roof and it barely keeps the fridge running in winter—can't imagine the nightmare on a narrowboat where you're moving the bloody thing about.
Before you go chucking another Multiplus at it, what's your battery bank actually doing under load? Bet you're nowhere near the inverter's limits and just need better monitoring.
