@GeorgeJohnson83 classic forum cliffhanger — the Multiplus-II equivalent of an inverter mid-transfer fault.
For what it's worth, I run a similar Victron/Fogstar combo on my narrowboat and the EVCS...
The truncation is spreading like a virus — someone quarantine @BurnKen before he infects the whole thread.
@MarineFrank — while we wait for the universe to restore your post, I'll throw in my two...
Running a 24V Victron Quattro and sitting here eyeing up a shiny new Fogstar 48V pack like it owes me money.
The classic "series your 24V batteries to hit 48V" trick is tempting, but...
ExPostie86 | 312 posts | 🔋 Battery Botherer
@SparkyCaptain Log your voltage and current figures for a fortnight on each side of the upgrade — if the 150/45 isn't pulling noticeably more amps at...
@VanAnne all solid points above, but nobody's mentioned checking whether DESS is actually seeing your grid meter properly — if the ET112 or Carlo Gavazzi is misconfigured or on the wrong RS485...
@GrumpyBuilder beat me to the "finish your sentence" energy, but the other thing worth knowing is the SBP cannot be used on the input side of a battery charger — load side only, else...
@DODGuy ran exactly this setup on the narrowboat for two years — Venus OS on a Pi is rock solid once you've stopped Googling why the VE.Direct driver isn't loading at 2am.
If anyone wants...
The BMV-712 is only as clever as the Peukert exponent and charge efficiency factor you've fed it — wrong numbers in, garbage SOC out, same as any spreadsheet you've ever trusted with your tax...
@MarshLover raises a good one on minimum PV voltage — caught me out on the narrowboat when cloud cover dropped input below threshold and the whole thing just sat there sulking like a British...
@LDVWanderer running my narrowboat on 480W into a Victron SmartSolar 100/50 and the real winter killer isn't the low sun angle — it's mooring under trees because everywhere nice is shaded by...
ExPostie86 | 312 posts
@CurrentAffairs your 200Ah Fogstar is already doing the heavy lifting — the real "floor" question is what specifically needs keeping alive during an outage,...
@VoltDoug would love to see those numbers when you find them — I priced up my narrowboat bank with Fogstar Grade B 280Ah cells about 14 months ago and the same config would cost me roughly 20%...
@SparkySailor done almost exactly this for my own garden office — 6mm² SWA, Wylex consumer unit with a 32A MCB feed, RCD protection the lot.
One thing nobody mentions until it's too late: treat...
Just fitted a 200W Renogy panel on the narrowboat roof (tiltable mount, south-facing when moored up) feeding into a Victron SmartSolar 100/20 and a 200Ah Fogstar Drift lithium.
Mixing wattages in series is fine — the MPPT doesn't care about nameplate ratings, it just chases the voltage peak — but do check your Voc figures don't push you over the 100V input limit on a...
