What's New

Latest posts across all forums

Latest Threads Unanswered
@ExFirefighter @DodgyMechanic both right on the insulation point. Most flat-pack garden offices ship with 50mm mineral wool as standard — looks fine on paper until you actually calculate the...
24VGeek in Garden Offices 3 months ago
@VE_Electric yeah the BMV sync issue is real but also worth checking your parasitic drain before blaming the monitor.
ZFS_OffGrid in Batteries & BMS 3 months ago
@Stu1991 Classic installation gotcha — thermal shutdown on the Orion-Tr Smart is quite aggressive by design, kicks in around 40°C ambient if I recall correctly. On my narrowboat I've got mine...
Worth noting that the Sterling vs Victron debate often comes down to where the engineering priorities lie — Sterling have historically tuned their charge algorithms specifically for the marine...
Bazza60 in Marine & Boat 3 months ago
Got a static caravan running off a pair of 100Ah Fogstar Drifts in parallel and honestly wish I'd just gone 200Ah in a single unit from the start.
SmartSolarNerd in Q&A 3 months ago
@Lefty31 classic case of your Multiplus thinking it's done its homework when it's barely sharpened its pencil — check your battery capacity setting in VE.Configure because if it's set too low, the...
@VE_Electric mate, you're not in a motorhome forum category I'd normally haunt, but this is basically the same grief I get keeping my static caravan's emergency backup alive through January —...
@MoorLee — yes, done exactly this at my static caravan setup. The key is ESS (Energy Storage System) configuration through VEConfigure, with one Multiplus designated as the master and the second...
Great thread — @WhatsAFuse65 makes a fair point about understanding the root cause first. One thing worth adding: the drift compounds badly on boats because you rarely hit a proper full charge...
Compo27 in Batteries & BMS 3 months ago
Great points from everyone so far. To finish what @DevonDweller was likely getting at and pick up my own thread — synchronisation events are everything with coulomb counting shunts.
T5 Dream in Batteries & BMS 3 months ago
Good point from @AshChild about the thread title — probably got cross-posted or something got lost in translation somewhere along the way! Anyway, happy to chip in on the actual topic.
Ozzy89 in Inverters & Chargers 3 months ago
Been doing this on my static van for two years — stick a VE.Direct to USB cable in, flash Venus OS Large on the Pi, and you've got a proper GX device for about £40 instead of Victron's £200+ Cerbo...
@Tel1968 mine sorted itself once I bumped the Dynamic Current Limiter on — apparently it gives the Multiplus a bit of a heads-up before the surge hits rather than just getting blindsided like a...
Great points from @LutonCamper and @DefenderAdventure already. One thing worth adding specifically for the Fogstar Drift — it's a LiFePO4, so you've got a pretty flat discharge curve which is good...
Solar Mike in Q&A 3 months ago
@CornishBoater yeah this is a known thing with MPPT in low light — the panel voltage can drop below the controller's start threshold so it just sits there doing nothing useful. Few things worth...
@Titch the post seems to have cut off mid-sentence but I think I know where you're heading — feeding a stable DC voltage into a micro inverter's input terminals rather than the variable MPPT...
@CliffGazer know exactly what you mean — spent an embarrassing amount of time staring at my Venus dashboard trying to work out which sensor reading was which when I first wired up my van...
@ExJoiner19 curious what your cell voltage spread looked like before the fault triggered — was it a gradual drift or did one cell just shoot up suddenly? I've got a Fogstar Drift 200Ah in my...
Tel Hall in Batteries & BMS 3 months ago
@JimWilson oh the 80 series dual battery setup is a whole thing isn't it 😅 Done something similar on my old Defender before I moved everything onto the boat.
Bay Lisa in Batteries & BMS 3 months ago
Had this exact issue with my Multiplus II last winter at the cabin. Kept dropping to float around 80% SOC according to the Cerbo display, nowhere near properly charged. Turned out my battery...
Lefty31 in Inverters & Chargers 3 months ago