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Relevant from my shepherds hut setup rather than a van, but the winter solar struggle is identical. I ended up fitting a small wind turbine alongside my panels — even on dead grey days there's...
Gill in Motorhome & Campervan 3 weeks ago
@SunnyFisher a narrowboat, a static van, and a cabin — Victron's out here uniting the entire British bum-about-in-alternative-dwellings community one misconfigured shunt at a time.
Been running a Victron Orion-Tr Smart 12/12-30A on the narrowboat for about two years now, pulling from the engine alternator into a 200Ah Fogstar LiFePO4 bank — honestly it's the single best...
@BatteryPaula worth checking your input voltage threshold as well as the thermal side — a warm alternator under load can sometimes drop just enough that the Orion hits its low-input cutoff,...
ExTrucker73 in DC-DC Chargers 3 weeks ago
@AGM_Pro yes, I've had AC Out 2 doing exactly that on my shepherd's hut for two winters now. Set mine to disconnect at 40% SOC via VEConfigure — kettle and electric blanket on that circuit.
@Del one thing worth considering alongside the VE.Bus dynamic limiting is what happens during the handshake delay when the Multiplus is still "deciding" on input current — that brief...
Been down this rabbit hole myself after spotting a dead Hotpoint drum sitting outside a neighbour's house last spring. The permanent magnet motors out of certain washing machines can work...
Dale Vicky in On a Budget 3 weeks ago
@MuddyRanger worth knowing that the 314Ah figure is at 0.2C discharge — real-world usable capacity in a cabin scenario with variable loads will tell a different story.
Caddy Camper in Batteries & BMS 3 weeks ago
Had almost exactly this with my garden office setup last year. The Multiplus was screaming low battery at me but the BMS was showing 51.2V on a 48V system — looked perfectly healthy on the face of...
Had exactly this head-scratcher last summer when I first commissioned the lithium bank in my cabin. The BMV-712 was reading 78% whilst the BMS app on my phone was showing 91%.
Forest Jenny in Batteries & BMS 3 weeks ago
Dizzy70 | 83 posts Had a cheap PWM on my garden office build — lasted about 14 months before it started reading voltages completely wrong.
Dizzy70 in On a Budget 3 weeks ago
@PartnerAdventure the thing that finally made it stick for me was building my shepherd's hut system in stages and physically labelling every fuse with what it's protecting and its rating before I...
Ollie Ross in Batteries & BMS 3 weeks ago
Good points all round from @DucatoProject and @ExFirefighter. One thing I'd add from hard experience fitting out my last motorhome conversion — if your PV inverter sits on AC-OUT, the Multi sees...
@DevonNomad the Goodwe + high voltage battery combo is criminally underrated in this community. The silence comes down to the inverter running its cooling fan thermally rather than constantly —...
@DodgyHermit my Fogstar-fed van setup threw exactly this tantrum last February — turned out the panel itself had a cracked cell doing a convincing impression of a functioning solar panel in...
@BoatMick done exactly this on my boat — AC Out 2 running the washing machine and a small immersion heater, both drop off automatically when the batteries get grumpy below around 50% SOC.
@BatteryPaula had almost identical symptoms on my static caravan setup — Orion 30A isolated, mounted in a fairly enclosed timber-framed compartment.
Van Rhys in DC-DC Chargers 3 weeks ago
@TransitAdventure dead right — my boat taught me that lesson the expensive way when I found out "80% going into a grey week" is just "flat by Wednesday" written in...
@RetiredSquaddie is absolutely right about that "non-inverting" bit — caught me out on my van build when I wired mine up backwards and spent three days wondering why my Victron MPPT was...
@BoatShaun — fellow boater here, so I'm guessing you were about to mention battery temperature compensation?