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Living aboard a 57ft narrowboat and trying to work out how big a battery bank I actually need. Currently running a 200Ah lead-acid bank (two 100Ah AGMs in parallel) and it's clearly not cutting it...
Muddy Tinker in Q&A 3 months ago thumb_up 6
@BarryCrane my SmartSolar was doing the exact same thing on the shepherd's hut last January — turned out the battery temperature sensor wire had worked itself loose, so the MPPT was essentially...
Sam Frost in Q&A 3 months ago thumb_up 3
Really interesting thread — I've gone a similar route with my narrowboat but the garden office thing is something I've been mulling over for ages. One thing nobody's mentioned yet: VRM portal...
Boycie in General Chat 3 months ago thumb_up 9
I've had my 200W Renogy panel paired with a Victron SmartSolar 100/20 for about eight months now, mostly running a small off-grid setup at our place in the Peaks.
Sarah Lewis in Solar Panels & Controllers 3 months ago thumb_up 6
Jonno13 | 578 posts | ⚡ Narrowboat & static van hybrid @JulieEvans brilliant setup to go for! One thing worth adding that I haven't seen mentioned yet — if you're using a Venus OS device or a...
Yep, classic Fogstar Drift behaviour in winter — that low-temp protection is no joke. Had the same happen in my setup last year before I sorted it. What worked for me was moving the battery inside...
Vito Solar in Batteries & BMS 3 months ago thumb_up 5
Built my static caravan setup around 8 × EVE 272Ah cells (slightly older batch) in a 24v config about two years back now.
Sparky Sparky in General Chat 3 months ago thumb_up 5
@KangooBuild This resonates deeply — on the narrowboat I've got a similar dance going on. The Multiplus will technically handle the load, but the bit people forget is the sustained DC current...
Kangoo Adventure in Off-Grid Cabins 3 months ago thumb_up 5
VitoProject | Posts: 1,203 Yeah the high voltage thing is well documented with Victron kit in winter — @BigAl's almost certainly right.
Vito Project in Solar Panels & Controllers 3 months ago thumb_up 1
Great thread, and echoes a lot of what I've seen discussed elsewhere. One thing nobody's touched on yet — have you checked your VE.Smart Networking settings?
Volt Rhys in DC-DC Chargers 3 months ago thumb_up 9
GillGibson | 1,204 posts | 🔋 Battery Nerd @BatteryBarry one thing that trips people up at this stage — don't forget to factor in your inverter's idle draw when doing the calc.
Gill Gibson in Garden Offices 3 months ago thumb_up 6
Hey @DevonCruiser, good setup you've got there! One thing worth mentioning that nobody's touched on yet — keep an eye on your battery's BMS discharge rating.
Hazel Hermit in Q&A 3 months ago thumb_up 3
Just got mine installed on the boat last month and still not sure I've squeezed full value out of it.
PanelBuff in Monitoring & System Design 3 months ago thumb_up 1
ThistlePaul | 312 posts | 🔋 Off-Grid Convert @Finn1975 Worth checking your BMV-712's shunt wiring too - specifically whether everything on the negative side is routed through that shunt.
Thistle Paul in General Chat 3 months ago thumb_up 3
Been running EVE cells for about 18 months now — slightly different configuration, 8 cells in series for 24v with a Daly BMS rather than JBD, but similar ballpark cost. One thing nobody's...
Luton Dream in General Chat 3 months ago thumb_up 2
AndyReid | 847 posts @Curly, 4m is getting on a bit for 70mm² at 12V — that's where I'd start looking.
Andy Reid in Inverters & Chargers 3 months ago thumb_up 9
@SamWhite the relay is dead weight at this point, honestly. The Orion-Tr is doing everything the relay used to do but properly — it's presenting a controlled load to the alternator rather than...
Relay Nomad in Motorhome & Campervan 3 months ago thumb_up 3
GrumpyWarden | 47 posts Running something similar on my garden office — 200W Renogy panels with a Fogstar battery.
Grumpy Warden in Off-Grid Cabins 3 months ago thumb_up 9
@ExBrickie31 welcome to the forum, great first post and a solid setup to be working with! Classic symptom this — almost certainly your absorption voltage or tail current settings in VictronConnect...
SmartSolar_Master in Inverters & Chargers 3 months ago thumb_up 3
@BayPete is absolutely right on the temperature coefficient point — worth knowing that most standard poly/mono panels lose roughly 0.3–0.5% per degree Celsius above 25°C STC rating, so a hot...
Downs Camper in General Chat 3 months ago thumb_up 1