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@CrispyRoamer what generator are you running with it? That's usually the first question because the MultiPlus-II is notoriously fussy about generator quality — it needs a clean sine wave and...
Thommo in Inverters & Chargers 4 months ago
Running a small chest freezer overnight on my narrowboat and trying to work out if a single 200Ah LiFePO4 is going to cut it before I commit to buying a second battery. The freezer is a Subcold...
MrBodge65 in Q&A 4 months ago
@VanRhys similar setup on my boat — gate cam plus a couple covering the deck. Key things I'd flag: PoE cameras eat more than you'd think at idle, check the actual draw not the rated max I run...
Jason Moore in On a Budget 4 months ago
Had something similar on my narrowboat build last spring — turned out to be the BMS going into protection mode and just refusing to wake up without a bit of coaxing. Few questions that might help...
Running a Fogstar Drift 200Ah in my motorhome and genuinely cannot decide if I'm being optimistic or delusional about keeping my little 40L chest freezer alive overnight without the solar doing...
ShesBeRight in Q&A 4 months ago
@RetiredChef @DontPanic25 worth noting the phantom draw mechanism varies depending on float switch type — the cheap reed-style ones (common on Chinese pumps bundled with Whale or Rule-branded...
ExPostie82 in Marine & Boat 4 months ago
@BayJason is right to flag that — VM3P75CT doesn't match any Victron product code I recognise either.
LH_Marine in Batteries & BMS 4 months ago
Had exactly this on my boat last season — BMV-712 was reading 74% whilst the BMS (a Daly 100A) was sitting at 61%.
@RetiredNurse49 "leaving about" is doing a lot of heavy lifting there — my Victron Connect app practically laughed at my old PWM's efficiency numbers when I first compared harvest logs...
T5 Project in Marine & Boat 4 months ago
@Jock30 what BMS are you running? That's usually where the odd behaviour comes from at low SoC rather than the Victron kit itself. My van build taught me the hard way — had a cheap BMS that would...
@Davo49 — familiar story, this one. Had almost identical behaviour on my shepherd's hut ESS last winter.
Quiet Maker in Batteries & BMS 4 months ago
Had this exact headache last year with my motorhome build. Short answer: trust neither blindly, but lean on the SmartShunt once it's properly calibrated. The BMS SOC is usually just voltage-based,...
ExChippie in Batteries & BMS 4 months ago
@Victron_Master makes a solid point about headroom. I'd add that the price difference between the 75/15 and the smaller 75/10 is honestly negligible these days — I picked mine up for about £15...
Carl in Motorhome & Campervan 4 months ago
Been wrestling with this one for my shepherd's hut setup and thought it worth throwing open to the floor. My Victron SmartSolar is currently set to 28.4V absorption for the 24V LiFePO4 bank...
MPPTGal in Batteries & BMS 4 months ago
Anyone else running lithium on a newer Sprinter-based motorhome with a smart alternator? Curious what solutions people have landed on. Had similar headaches on my static van setup — obviously no...
@MoorHamish done exactly this in my static caravan — Fogstar Drift 200Ah running a small Icemaster chest freezer and it's fine overnight, but "overnight" does a lot of heavy lifting as a...
Heather Walker in Q&A 4 months ago
@WattHelen genuinely curious what the rabbit hole was though — is the actual question about whether the Multiplus needs clearance above, below, or both sides for proper airflow?
Had a similar scare with my setup in the shepherd's hut last month, so this feels timely. Was doing some rewiring to tidy up the 12V distribution panel and somehow managed to momentarily reverse...
Don't forget your Victron BMV-712 will grass you up with the actual numbers after one night — no more guessing in the dark like the rest of us romantics. 🕯️
Kate Price in Q&A 4 months ago
@SaltyMechanic and @CrafterConvert have covered the usable capacity side well. One thing nobody's mentioned — ambient temperature matters a lot.
Marine Gaz in Q&A 4 months ago