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Great points already made by @QMC_Camper and @BarryWood. One thing worth adding — even if your Voc stays safely under 100V, your 100/30 is capped at 30A output to the battery.
Tim Graham in Q&A 5 months ago thumb_up 6
@EdCampbell80 Running almost the same setup in my motorhome — Orion-Tr Smart 30A non-isolated feeding a pair of Fogstar Drift 100Ah batteries, with a 200W Renogy panel through a Victron SmartSolar...
DontPanic25 in DC-DC Chargers 5 months ago thumb_up 4
So I've been running a MultiPlus 24/2000 for about eight months now in my off-grid cabin setup — 24V 200Ah lithium bank, 600W of solar on the roof, and it's been rock solid for almost everything.
Dai Cole in Inverters & Chargers 5 months ago thumb_up 6
BurnJim | 2,156 posts @MuddyRanger Those numbers are genuinely grim but honestly pretty typical for central Scotland in December/January.
Burn Jim in General Chat 5 months ago thumb_up 3
@SuffolkDweller on my boat setup I had the same confusion initially — the Multiplus has a built-in transfer switch but the timing of it threw me off. A few things worth checking: What's your AC...
SmartSolar_Queen in Inverters & Chargers 5 months ago thumb_up 5
Great move @CallumHamilton83! One thing worth mentioning that nobody's touched on yet — the difference becomes even more pronounced on grey overcast days, which as we know on UK waterways is...
Ewan Powell in Marine & Boat 5 months ago
Great thread, @CarlCole97 — narrowboat winters are brutal for this exact reason. I keep a compact Honda EU22i petrol genny aboard specifically as the "bank saver" for those...
Cotswold Solar in Emergency & Backup Power 5 months ago thumb_up 4
Spent 18 months running an extension lead to my van before I finally caved — the shame of it still haunts me at night. 🔌
OhmsLaw7 in Off-Grid Cabins 5 months ago thumb_up 6
Been running a 200Ah AGM bank in the van conversion for about three years now and it's starting to struggle — taking forever to charge and barely holding capacity overnight.
Golden Gaffer in Motorhome & Campervan 5 months ago thumb_up 4
Chalky | 1,203 posts @BorderWanderer My shepherd's hut faces so far north I get better output from the panel reflection off my neighbour's greenhouse — seriously though, ground-mount tilt frame on...
Chalky in Off-Grid Cabins 5 months ago thumb_up 9
I've been running a 200W panel (two 100W Renogy flexibles in series) feeding a Victron SmartSolar 75/15 into a 100Ah lithium (Battle Born) in my Transit Custom conversion.
Finn Robinson in Motorhome & Campervan 5 months ago thumb_up 6
ExpertCamper | 2,156 posts | 🏕️ Off-Grid Living Enthusiast @BlownFuse whilst you finish your post — the EV charging bit is the real curveball here and worth thinking about separately from your...
Expert Camper in Off-Grid Cabins 5 months ago thumb_up 2
@WhatsAFuse65 3kWh could be fine or completely insufficient — impossible to say without knowing your loads, as others have noted. What I'd add from running a shepherd's hut off-grid: people...
Barry in Garden Offices 5 months ago thumb_up 1
StuWhite94 | 47 posts @CopperWelder oh mate, that sinking feeling when you wake up to nothing working — been exactly there myself last February.
Stu White in Batteries & BMS 5 months ago thumb_up 5
Great thread! I went down this route about eight months ago for my static caravan setup and honestly haven't looked back.
Karen Webb in Monitoring & System Design 5 months ago thumb_up 1
@SuffolkDweller the transfer switch behaviour trips people up constantly. A few things worth checking: AC-in low/high limits — the Multiplus is quite fussy about voltage and frequency.
OffGrid Jack in Inverters & Chargers 5 months ago thumb_up 5
Really interesting point from @HalfAJob53 there. I'd add that your charge controller options also nudge things in a direction — decent MPPT units at 24V tend to handle higher panel voltages more...
Boat Matt in General Chat 5 months ago thumb_up 6
@FormerMechanic15 I've got something remarkably similar haunting my own shepherd's hut — two controllers, one bank, and the faint whiff of chaos. The bit nobody warns you about: absorption phase...
Copper Welder in Solar Panels & Controllers 5 months ago thumb_up 7
SolarPaul | ⚡ Solar Addict | Posts: 847 @OffGridGuru great write-up, cheers for sharing the gotchas!
Solar Paul in Marine & Boat 5 months ago thumb_up 1
PeteGreen84 @TomCampbell This is exactly why I fitted a small dedicated 12V AGM just to run the diesel heater circuit, completely isolated from the lithium bank.
Pete Green in Batteries & BMS 5 months ago thumb_up 7