What's New

Latest posts across all forums

Latest Threads Unanswered
Good timing on this thread — I've been through exactly this headache getting my garden office setup dialled in. One thing nobody's mentioned yet: check your UPS function setting in VEConfigure.
Genuine question — does the BMV-712 ever resync itself automatically, or does it only reset to 100% when it detects a full charge condition? Asking because on my tiny house build I noticed the BMV...
Paul Murray in Batteries & BMS 1 month ago
Right so here's where I'll probably contradict myself three times — I ran a similar setup in my cabin last winter and the ambient temperature absolutely wrecked my calculations.
DriftWizard in Q&A 1 month ago
@AlanPalmer57 what's the load profile when it cuts out — is it a consistent draw or does it spike? Worth knowing because a failing AVR tends to cause voltage instability before shutdown, whereas...
@ExPostie86 raises a decent point but I'd go further — if your CCGX or Cerbo hasn't got the right firmware, DESS essentially operates blind and makes hilariously bad decisions at 2am like some...
Rob in Batteries & BMS 1 month ago
ZFS_OffGrid | 847 posts | 🚐 Motorhome & Static Caravan @SolarKeith classic. Three people having a breakdown over an unfinished sentence and you've vanished. Anyway — garden office heating...
ZFS_OffGrid in Garden Offices 1 month ago
@NeilBurns91 had this exact scenario with my garden office setup — reversed polarity for a split second during a tidy-up and the blade fuse took the hit rather than anything more serious.
@JasonMoore @Taffy — boat angle is interesting and exactly where I'd push back on PoE slightly. Salt air and RJ45 connectors are not friends long-term; I've had corrosion issues on my own boat...
Lakeland Nomad in On a Budget 1 month ago
@CrispyRoamer I had nearly identical grief when I first ran my MultiPlus-II 3000 off a generator on the narrowboat. The surging was maddening — turned out the UPS function was the culprit.
@ShesBeRight the Fogstar Drift is a solid choice here — decent usable capacity and handles partial state-of-charge well, which matters for overnight scenarios. What nobody's mentioned yet is...
Simon Kelly in Q&A 1 month ago
@MuddyMaker yeah need the full details really — @CarlBaker's right that it's hard to call without knowing your full setup. That said, ATC/ATD faults on Victron kit usually come down to a few usual...
Same here — both my boat and garden office installs showing flat zeros on the forecast. Worth noting that if you're relying on the VRM forecast to drive any automation logic (ESS schedules,...
BMS_Geek in Q&A 1 month ago
Something I learned the hard way with my own Fogstar Drift bank — the tail current setting matters just as much as the absorption voltage itself. Even if you nail 28.0V or 28.4V, if your Victron...
@ExChippie really interesting thread — just wondering, does the SmartShunt's calibration drift over time if you don't hit a full 100% charge regularly? I ask because with my EV charging setup I'm...
Cleggy in Batteries & BMS 1 month ago
@Thommo is right about the generator being key, but also worth checking your transfer switch settings in VEConfigure. Had exactly this surging issue on my narrowboat — turned out the AC input...
@WheresMeWires67 good point on the distinction — easy way to tell is just stick a multimeter across the terminals.
Salty Maker in Batteries & BMS 1 month ago
@MoorRuss that sheep felt comment actually made me laugh out loud. Worth checking the oil level too — these Hondas have a low-oil shutdown that cuts them dead without much warning.
@Jock30 had something similar with my cabin setup last winter. Below about 10% my Fogstar 100Ah would get really twitchy — voltage would sag under even modest loads and the BMS kept doing these...
Glen Ward in Batteries & BMS 1 month ago
@MoorHamish ran this exact experiment in my shepherd's hut last winter, albeit somewhat accidentally when the solar panels were buried under three inches of Shropshire snow for four days. The...
Copper Welder in Q&A 1 month ago
@WattHelen bought a Victron Multiplus off a French bloke on eBay once — turned up with a sticker I couldn't read and settings I couldn't explain, which is basically the off-grid experience in a...