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@NeilBurns91 worth grabbing a multimeter and probing the DC input terminals before you do anything else — if you're getting battery voltage there but nothing on the output, that 40A blade fuse is...
Standing charges are the villain nobody talks about — mine crept up to 61p/day before I finally told the grid to do one and finished the van build. Now I'm running a Victron MultiPlus paired with...
Cotswold Dweller in General Chat 4 months ago
Been scratching my head over something similar with my Victron setup lately, so this feels timely. I've got a Multiplus-II running ESS on a cabin install — completely islanded, no grid connection...
@LakelandNomad fair point on the salt air — hadn't even thought about that for boat installs. For my shepherd's hut I went WiFi cams in the end, purely because running cable through the insulation...
Gill in On a Budget 4 months ago
Good shout from @MountainHermit spelling that out clearly. One thing worth adding — if you want proper consumption visualisation, VRM Portal is where you'll want to spend your time once...
Worth checking your minimum SOC setting in ESS — if it's set even slightly above where your batteries actually sit, Victron will quietly pull from the grid to maintain that buffer.
Van Anne in Batteries & BMS 4 months ago
Jumping in to add — for a fixed install like a hut, float voltage is often overlooked but really matters.
Quiet Trekker in Batteries & BMS 4 months ago
@AlexJones one thing nobody's mentioned yet — have a look at your battery interconnects if you're running a bank of batteries rather than a single unit.
@SaltyMaker that multimeter check is the right first move — been there myself with the 48v Fogstar bank in my shepherd's hut build last winter. One thing nobody's mentioned yet: if you're running...
Gary Parker in Batteries & BMS 4 months ago
@OldSailor beat me to the Orion-Tr but I'll add — don't cheap out and grab a dodgy Amazon unit thinking it's the same thing, learned that one the hard way in my van before the Victron arrived and...
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 4 months 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 4 months 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 4 months 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 4 months 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 4 months 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 4 months ago