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@Taffy55 makes a solid point about the Multiplus being the ceiling here, but even if you upgraded the inverter the maths is brutal. 6kWh usable (say 80%) = 4.8kWh before you're stressing the...
Vito Solar in Off-Grid Cabins 3 months ago thumb_up 9
@Boycie I did a similar swap in my van build and the lightbulb moment for me was realising the Daly is essentially the last line of defence, not the first.
Valley OffGrid in Q&A 3 months ago thumb_up 1
T6Life | Posts: 312 Great thread this. One thing worth adding — thermal management of the inverter location is just as important as cable runs.
T6 Life in Motorhome & Campervan 3 months ago
Hey @EwanScott, worth checking whether both batteries are actually reaching the same resting voltage before you connect them in parallel.
Relay Life in Q&A 3 months ago thumb_up 3
@Curly7 what voltage threshold have you set for the input low voltage shutdown? I had similar weirdness on mine in the garden office setup — turned out my shutdown voltage was set too close to the...
Nobby in DC-DC Chargers 3 months ago thumb_up 5
KevScott | posts Not a motorhome but the principle's identical on the boat — three days of solid grey and you find out fast what your "emergency" setup actually is versus what you...
Kev Scott in Emergency & Backup Power 3 months ago thumb_up 8
EdStewart | 562 posts | ⚡ Off-Grid Tinkerer One thing worth flagging that I haven't seen mentioned yet — the vibration environment differs quite a bit between the two applications.
Ed Stewart in Motorhome & Campervan 3 months ago thumb_up 5
BenChapman67 | 847 posts @CamperDan good project to tackle. The fridge-freezer is often the sneaky one people underestimate — it's not just the running wattage, it's that compressor startup surge...
Ben Chapman in Q&A 3 months ago thumb_up 5
RetiredNurse58 | 891 posts @ExFirefighter59 Something I learned the hard way with my static caravan setup — the BMS reads cell temperature, not the pad surface temperature.
RetiredNurse58 in Batteries & BMS 3 months ago thumb_up 2
24V_Nerd | Posts: 1,203 @IslandVanLifer One thing I'd add that nobody's touched on yet — being static on Harris means wind is genuinely worth considering alongside solar.
24V_Nerd in Motorhome & Campervan 3 months ago thumb_up 5
Been meaning to post about this for a while. Finally got round to replacing the tired old 240V shore power arrangement on my Westerly Konsort 28 last autumn.
Clive Crane in Marine & Boat 3 months ago thumb_up 2
Been meaning to write this up for ages. Last July I finally ripped out the old 200Ah AGM bank on my 32ft canal boat and replaced it with two Fogstar Drift 100Ah 12V lithium cells wired in...
Master Solar in Marine & Boat 3 months ago thumb_up 3
Davo51 | 1,203 posts | 🚐 Van Dweller Ran a similar experiment on the van build — two mystery-brand 200W panels alongside a pair of Renogy ones, all feeding the same Victron MPPT.
Davo51 in Solar Panels & Controllers 3 months ago thumb_up 1
Ran almost exactly this setup for a year before I swapped the car out. One thing nobody's mentioned yet — if your car has stop-start, the Orion-Tr Smart can get a bit twitchy about whether to...
Van Jim in DC-DC Chargers 3 months ago thumb_up 6
@IvyWalker worth checking your EV's minimum charge current too — some won't accept below 6A on a Type 2, which is 1.4kW.
Spud79 in Q&A 3 months ago thumb_up 6
VivaroBuild | 312 posts | 🔧 Regular @FellKev that MultiPlus-II / Fogstar combo is almost identical to what I cobbled together for my shepherd's hut build last spring.
Vivaro Build in Off-Grid Cabins 3 months ago thumb_up 8
Yes, running a 16m² cabin in the Scottish Borders on Victron MPPT + Multiplus II with 400Ah Fogstar stack — year-round since last April. Winter is genuinely the test, not gonna lie.
Gemma in Off-Grid Cabins 3 months ago thumb_up 6
Just to add something slightly different to what's been covered — have you checked whether your Fogstar has its own BMS temperature compensation?
KMV_Marine in Solar Panels & Controllers 3 months ago thumb_up 3
@ForestSolar — worth being precise about what "powering" actually means here, because that phrase is doing a lot of heavy lifting in your post. A 3×4m office running a single laptop and...
Panel Louise in Garden Offices 3 months ago thumb_up 9
@WD40Wizard11 makes a fair point, but worth being precise about why the relay becomes redundant rather than just saying ditch it. The B2B charger already handles isolation between starter and...
Roger Knight in Motorhome & Campervan 3 months ago thumb_up 5