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@QIH_Electric worth thinking about this differently — rather than trying to match the charger's rated speed, could you throttle it right down?
Volt Doug in Off-Grid Cabins 3 months ago thumb_up 2
DailyAdventure | 1,204 posts @Ben1973 Mate, £18 is roughly the cost of a Victron BMV-712's packaging — your wallet made a choice and your sanity is paying the consequences.
Daily Adventure in Q&A 3 months ago
Really relate to this — I've got a Victron SmartSolar 75/15 on my shepherd's hut and the readings in January are genuinely baffling sometimes.
Donna Murray in General Chat 3 months ago thumb_up 3
@Boycie the piece nobody mentions is that on a narrowboat you've got two extra failure modes a static install doesn't: vibration loosening cell interconnects over time, and bilge humidity getting...
Watt Charlie in Q&A 3 months ago thumb_up 3
RockyMender | 312 posts | Array Spent £12 on a "30A" PWM once too — turns out "30A" was Chinese for "maybe 8A on a good day if it's not Tuesday." 🙄 Bit the bullet and...
Rocky Mender in General Chat 3 months ago thumb_up 3
RhysLee78 | 847 posts | ⚡ Solar Enthusiast @ForestDweller I'm running a similar dual-vehicle situation — motorhome and a small cabin setup rather than a narrowboat, but I'd say standardising on...
Rhys Lee in Motorhome & Campervan 3 months ago thumb_up 6
Davo49 | Posts: 891 | 📍 Array Running a shepherd's hut with a mismatched panel situation myself — inherited two 12V 150W panels when I bought the plot, then added proper 24V panels later.
Davo49 in Solar Panels & Controllers 3 months ago thumb_up 1
JennyWilson | 312 posts | Joined 2 years ago @NickMason one thing nobody's mentioned yet — have you checked your BMS temperature sensor placement?
Jenny Wilson in Batteries & BMS 3 months ago thumb_up 8
GlenLover | 312 posts @EssexBoater those voltage sag symptoms are pretty classic end-of-life AGM behaviour — you've definitely got your money's worth out of them!
Glen Lover in General Chat 3 months ago thumb_up 8
Been running the same JK 200A unit here for about a year and found the Bluetooth dropout was actually heat-related in my case — the BMS is tucked in a fairly confined battery box and once ambient...
Martin in Batteries & BMS 3 months ago thumb_up 1
@MeganFox nice one! I've got something similar running my workshop/office combo — 3x 200W panels into a Victron SmartSolar 100/30, paired with 200Ah of lithium.
12VNerd in General Chat 3 months ago thumb_up 6
Great thread @JakeMartin, really looking forward to the full write-up. Eight months is solid real-world data. I went through a similar decision process with my workshop setup last year.
Lee in Garden Offices 3 months ago thumb_up 5
BurnSophie | Posts: 203 Running a narrowboat setup taught me something relevant here — I went through exactly this logic spiral before settling on just the DC-DC (Victron Orion-Tr Smart 30A in my...
Burn Sophie in Motorhome & Campervan 3 months ago thumb_up 4
Had almost the exact same saga with my garden office setup. Turned out my Samsung was the culprit — Android's aggressive battery optimisation was strangling the Bluetooth connection in the...
Watt Nick in Q&A 3 months ago thumb_up 2
Reply by Tommo10: @Doug1981 worth looking at the Eclectic Energy D400 if you haven't already — it's a UK-made unit and well suited to the kind of gusty, lower-average-wind conditions you get in...
Tommo10 in Off-Grid Cabins 3 months ago thumb_up 9
@Compo27 yes, seen this exact thing with my setup. The MPPT is reading voltage-based SOC and LiFePO4 has an incredibly flat discharge curve anyway — add cold temps into the mix and the resting...
Taffy62 in Q&A 3 months ago thumb_up 5
Not a van person myself — I've got a Fogstar lithium setup in my garden office fed from solar — but this question is nagging at me because I'm considering adding a DC-DC charger as a backup from...
Liz in Motorhome & Campervan 3 months ago thumb_up 7
@DucatoSolar worth separating out a few things here — lower sun angle means your panels aren't hitting rated wattage in the first place, so the MPPT has less to work with.
Cotswold Explorer in General Chat 3 months ago thumb_up 5
If both MPPTs are fighting over who gets to top up the Fogstar, just wire a Victron VE.Smart network dongle on each one and let them gossip wirelessly until they agree — works a treat on my...
Tommo38 in Q&A 3 months ago thumb_up 8
MuddyNomad | 634 posts @RussGreen nailed it — that flat discharge curve is the real villain here. In my shepherd's hut last February, I watched my Victron app show 87% SOC right up until the...
Muddy Nomad in Q&A 3 months ago thumb_up 1