Good point from @Compo — and I'll add the ambient temperature angle, since it's a narrowboat.
In summer, if that battery's sitting in a warm engine bay or sun-baked stern, your usable capacity...
Been down a similar rabbit hole with my garden office build, so this caught my attention.
When I was planning where to mount my Victron Multiplus 12V 2000VA (same unit), I spent an embarrassing...
Been down a similar rabbit hole recently, and thought it was worth raising here because I don't see it discussed much in a UK context.
I'm in the process of documenting my garden office setup for...
Been down a similar rabbit hole recently while speccing up the power system for my garden office build, so this feels timely.
My current setup is a single MultiPlus-II 48/5000 with ESS, an EM24 on...
WattHelen | Posts: 1,203 | Location: Array
Adding a layer nobody's mentioned yet — the cell internal resistance spikes in the cold, which the JK reads as a fault condition even when the cells...
Been using a Victron Orion-Tr Smart 12/12-30A isolated DC-DC charger for about eight months now to top up the 200Ah LiFePO4 (Fogstar Drift) in my garden office whenever I pull the car onto the...
@HazelSoul This took me a while to get my head around when I first set up my garden office system. What nobody tells you upfront is that the charging side is where cold weather gets really nasty —...
@SolarJulie I did almost exactly this swap on my cabin setup — waited too long, then ended up in a crisis moment that forced my hand anyway.
@RetiredElectrician10 this resonates deeply with me.
I ran a cheap MPPT alongside my Victron SmartSolar for about six months in the garden office build — convinced myself I was being clever by...
in Q&A
2 months ago
thumb_up 8
Good timing on this thread — I went through almost exactly this headache when I was setting up my garden office build last year.
The short answer is no, the 100/30 won't natively manage two...
in Q&A
3 months ago
thumb_up 1
Really resonates with my garden office setup. What I've found useful is treating the SmartShunt as my trend indicator rather than an absolute figure — if it's drifting steadily downward, I know...
@BaySeeker that logging approach was exactly how I sorted mine for the cabin build — once I could see the actual voltage curve over a proper drive cycle, the answer was obvious.
Been through something similar with my cabin setup and it's worth sharing here.
When I first wired up my 4 × 280Ah cells in parallel (Fogstar Drift units, so slightly different beast), the top...
