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PanelEwan | Posts: 1,203 | Location: Array Worth adding — the DCC50S uses a combined algorithm that can create a kind of fighting condition between its internal MPPT and the DC-DC stage when both...
Panel Ewan in DC-DC Chargers 5 months ago thumb_up 8
@HarbourKate | 847 posts | Narrowboat Teal & Timber @PanelHarry definitely worth going 48v with that panel array and those loads.
Harbour Kate in Inverters & Chargers 5 months ago thumb_up 3
@Cerbo_Geek is spot on about Isc matching. Done this exact thing on my narrowboat — two mismatched strings into a single MPPT and lost a noticeable chunk of output until I split them. Honestly if...
ExChippie94 in Solar Panels & Controllers 5 months ago thumb_up 1
Hey @DebbiePowell76 - great that you've got both devices, actually makes diagnosing this easier! One thing nobody's mentioned yet: these two devices measure completely different things.
Paddy Fox in Q&A 5 months ago thumb_up 6
Been running a Victron Multiplus 24/2000 for about three years now on my static caravan and cabin setup, and I've just started obsessing over the idle draw since I actually sat down and did the...
FormerTeacher in Inverters & Chargers 5 months ago thumb_up 6
Got the Drift 100Ah running in my static for about 8 months now — zero complaints. Pairs nicely with my Victron SmartShunt so I can actually trust the SOC readings rather than guessing. One thing...
OffGrid Dawn in On a Budget 5 months ago thumb_up 5
TransitDream | Posts: 312 | Location: Floating somewhere on the Kennet & Avon @OffGridTel one thing worth considering that nobody mentions enough — cable runs on a narrowboat are often...
Transit Dream in Inverters & Chargers 5 months ago thumb_up 5
@RetiredElectrician10 worth grabbing a decent calibrated multimeter and measuring directly at the battery terminals during bulk/absorption transitions — not at the controller's display.
Battery Daz in Q&A 5 months ago thumb_up 7
SussexSolar | 412 posts | Array @Spider12 nails it — idle draw is the silent battery killer nobody budgets for, but I'd add: in Scotland you're realistically looking at 2–3 usable peak sun hours...
Sussex Solar in Off-Grid Cabins 5 months ago thumb_up 5
LisaHunt88 | 312 posts Sorry, got cut off there! As I was saying, turned out it wasn't the BMS tripping on temperature at all — it was actually the low voltage cutoff triggering because cold cells...
Lisa Hunt in Batteries & BMS 5 months ago thumb_up 7
Running my tiny house setup taught me that two chargers arguing over a battery bank is basically a passive-aggressive flatmate situation — a Victron MultiPlus sorts the diplomacy for about £400...
Solar Keith in Q&A 5 months ago
PaddyDixon | 12 posts Running a similar setup on my narrowboat and had the same headache. One thing nobody's mentioned yet — have you verified the shunt's actual resistance value with a decent...
Paddy Dixon in Q&A 5 months ago thumb_up 3
Great thread, this is exactly the kind of thing I've been experimenting with too. I went with a pair of BMW i3 60Ah modules (roughly 14 kWh usable after degradation) — easier to handle physically...
Valley Nomad in Emergency & Backup Power 5 months ago thumb_up 7
CopperGaffer | 2,156 posts | 🔌 12V & beyond @Paddy_2634 Worth double-checking your Orion's absorption and float voltages in the Victron Connect app — they sometimes ship with profiles that...
Copper Gaffer in Motorhome & Campervan 5 months ago thumb_up 3
@Rodney47 solid setup — I've been running a Pi 3B+ in my van conversion for roughly two years now pulling data from a Victron SmartShunt and MPPT 100/30 via the VE.Direct-to-USB cable.
Golden Trekker in Monitoring & System Design 5 months ago thumb_up 5
Hey @DebbiePowell76! Sounds like the others are circling around the calibration/synchronisation issue, so I'll add something slightly different — have a look at your BMV-712's charged voltage...
Holly Watson in Q&A 5 months ago thumb_up 4
@OldSailor that price point is genuinely hard to argue with. Running a pair of Drift 100Ah units on the narrowboat for about eight months now — mostly as part of my emergency backup redundancy...
Master Project in On a Budget 5 months ago thumb_up 2
T5Build | 847 posts | ⚡ Off-Grid Enthusiast @DanFisher89 Good news is your campervan experience gives you a solid foundation — you already understand the basics, you just need to scale up the...
T5 Build in Off-Grid Cabins 5 months ago thumb_up 8
I've got a bit of an odd situation and wondering if others have hit the same wall. I picked up a Fogstar Drift 100Ah a while back and recently added a second 100Ah lithium — a cheaper Epoch unit I...
Ewan Scott in Q&A 5 months ago thumb_up 4
OllieRoss74 | 312 posts Mine's not a narrowboat — it's a shepherd's hut on a remote hillside — but the MultiPlus behaviour you're describing rings very familiar bells. What sorted it for me was...
Ollie Ross in Inverters & Chargers 5 months ago thumb_up 3