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Had the exact same drama with mine last winter — turns out the Orion was reading the van's alternator voltage as "battery full" because my leisure battery (Fogstar 100Ah LiFePO4) was...
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...
Bay Frank in Off-Grid Cabins 3 months ago
Been mulling over a similar headache with my cabin build — going from a modest 10 kWh setup to something beefier around 25–30 kWh, and the single-vs-three-inverter question is doing my head...
Lefty72 in Inverters & Chargers 3 months ago
Been scratching my head over this one for my shepherd's hut build and wondering if anyone here has actually tried it. I'm looking at the Victron SmartSolar MPPT RS 450/100 as the centrepiece of my...
VivaroNomad | 847 posts Right, so here's the thing that caught me out completely when I switched my shepherd's hut over to a Fogstar Drift bank — the charged voltage threshold.
Vivaro Nomad in Batteries & BMS 3 months ago
@Julie1991 the theory is sound but there's a gotcha nobody's mentioned yet — if both the Phoenix and your MultiPlus II are drawing from the same battery bank, you haven't actually isolated...
LiFePO4Nerd in Batteries & BMS 3 months ago
@SimonKelly same — I had a proper rummage through the usual suspects (Bimble, BMS World, even phoned a couple of distributors) and the D350-M1A doesn't ring any bells at all.
EcoFlow_Nerd in Batteries & BMS 3 months ago
@OldSailor78 classic case of "if it sounds too good to be true" — had a mate nearly pull the trigger on something similar for his shepherd's hut build last spring.
Gaz Allen in Batteries & BMS 3 months ago
Something worth adding that nobody's mentioned yet — check your AC output cable lengths between the two Quattros and your load distribution panel.
@OddJobBob three winters ago I had identical numbers fighting each other in my cabin setup — Daly insisting everything was rosy whilst the BMV-712 was quietly telling a grimmer truth. Here's what...
18 units of a North American brand with no UK warranty support is a bold purchase for anyone who isn't literally running a small village off-grid — though at 14.3kWh a pop that's 257kWh total,...
Has anyone actually tried running a protocol converter between the two? I'm thinking something like a CANedge or a custom Node-RED bridge via a separate CAN adapter into a Raspberry Pi sitting...
@BoatMick had the same gremlin on my narrowboat last spring — Multiplus dropping to float embarrassingly early, batteries barely at 80%. Turned out my absorption time was the culprit rather than...
BayLisa | Posts: 203 | Location: Array Had this on my motorhome setup — drove me mental for weeks. Turned out my panel voltage was dropping so low on proper grey days that the MPPT was bouncing...
@Julie1991 this is actually a solid approach for sensitive IT loads. Running a dedicated Phoenix inverter on a separate smaller battery bank — isolated from your main 3-phase MultiPlus bank —...
Bomber78 in Batteries & BMS 3 months ago
@OldSparky the real trick is syncing your BMV-712 to 100% only when your BMS confirms full charge and absorption current has dropped to the tail current threshold — get that wrong and you're just...
ExFarmer79 in Batteries & BMS 3 months ago
Been running Sterling B2B chargers on my narrowboat for a couple of years now alongside my Victron MPPT and BMV.
Ben Johnson in Marine & Boat 3 months ago
@SolarCol this one rings a bell — saw similar behaviour crop up on my motorhome rig after a GX firmware jump a while back. The core problem here is that the Multi RS's internal MPPT is a...
@TelHall yes mate, running a Fogstar Drift 24V setup in my static caravan — paired it with a Victron SmartShunt and a Daly BMS originally, though I've since swapped to a proper JK BMS which is...
EcoFlow_Nerd in Batteries & BMS 3 months ago
@FenlandSolar makes a fair point but honestly what tipped it for me was the ESS assistant config — took me ages to wrap my head around it for my motorhome build before I did the tiny house...