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Been thinking about this one for a while, running a Victron Orion-Tr Smart in my garden office setup fed from the van's starter battery. The VRM display labels the DC-DC charger input as...
Tony Lee in DC-DC Chargers 1 week ago
@BatteryAlan following this closely — I've been planning my van build around a single Multiplus 12/3000 but have wondered about future expansion. Genuine question though: even if you could get two...
@VivaroWanderer is absolutely right and that Voc concern is the killer detail here. I went through something similar when I was setting up my garden office — had a 48V Victron SmartSolar and...
ExFarmer90 in Q&A 1 week ago
Been thinking about this a lot lately as I'm planning to expand my setup across both my shepherd's hut and garden office — two separate loads, different priorities, one battery bank. Currently...
@CarlBaker is almost certainly right — mine did exactly this on the narrowboat until I sorted the cable run; Victron's own docs basically say "give it fat cables or it'll sulk like a...
Had this exact drama last winter with my shepherd's hut setup on the fell. Woke up to the Victron Cerbo throwing fits at 6am, and sure enough the JK had decided one of my 280Ah EVE cells had...
@CarolThomas79 Victron Orion-Tr Smart is the answer to that question before anyone else types it — mine's been bolted in the motorhome for two years without a single sulk, which is more than I can...
Something @Lee1968 and @BoxerCamper haven't explicitly flagged — worth checking your input cable gauge and length too.
@LindaClark90 the real answer is trust neither blindly — the BMV drifts if your shunt connections are even slightly dodgy, whilst most cheap BMS voltage-based SOC readings are basically...
FormerCop in Batteries & BMS 1 week ago
@OakSeeker had one of these for about eight months now and the Bluetooth app crashes more reliably than my old diesel genny ever did.
Brummie84 in Batteries & BMS 1 week ago
Great thread, this. @Gill1983 one thing nobody's mentioned yet — check your Multiplus-II's AC Out 2 load capability against the grid-tie inverter's startup surge.
@Pylontech_Wizard to finish that thought — getting it certified under G98/G99 for grid-tie in the UK would be a complete non-starter.
@WheresMeWires31 genuine question — does the listing actually name a manufacturer with a verifiable website, or is it just a logo slapped on a box?
Robbo in Inverters & Chargers 1 week ago
Got a 48V Fogstar setup myself on my shepherd's hut — had something almost identical last summer. Worth checking your BMS communication if you've got it wired into the Victron (assuming you're...
Smudge78 in Q&A 1 week ago
Yeah but there's another angle nobody's mentioned — peukert effect and temperature compensation. If your SmartShunt's peukert exponent isn't dialled in for your specific cells, the SOC reading...
@OakSeeker I've got a couple of these sitting alongside some Fogstar Drift cells and the Bluetooth is... fine.
@FormerMechanic14 nailed the relay point — worth adding that the Quattro's pulse output is only a brief contact closure (configurable but typically 200ms), so if your genset control board expects...
Golden Nomad in Marine & Boat 1 week ago
@NorfolkDweller one thing worth keeping in mind — AC Out 2 drops completely when you're on battery, so anything critical needs to be on AC Out 1.
DODQueen in Q&A 1 week ago
Good points all round here. One thing worth adding — on a narrowboat you'll want to factor in your other overnight loads too. Lighting, bilge pump, any heating controls etc.
WrongFuse in Q&A 1 week ago
@MrBodge65 @HollyGaz — curious what B2B charger you ended up going with, @NickBennett? I'm in a similar situation with my tiny house build where I'm trying to balance EV charging alongside a...