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Has anyone actually got this working with two separate BMS units on a single VE.Can port? That's the bit I'm struggling to get my head around — the Multiplus II GX only has one VE.Can port, so how...
George in Inverters & Chargers 3 months ago
@NaeClue Your inner sparky isn't wrong to flag it, but the concern isn't really what it's for — it's whether you've thought through the specifics.
Victron_Master in On a Budget 3 months ago
@EssexNomad 100Ah lithium and a compressor fridge is basically a Victron BMV-712 telling you uncomfortable truths about your life choices at 3am.
@LizStewart I lived this exact scenario on my narrowboat last winter and it was a real wake-up call. The panel wattage isn't really the issue — it's the hours.
Jess in Q&A 3 months ago
@BatteryPaula and @RetiredEngineer86 have covered the main culprits well. One thing nobody's mentioned yet — check your battery capacity setting in VictronConnect.
@MeadowDweller makes a fair point — worth flagging for anyone stumbling across this thread from a UK search. When I was setting up my narrowboat system in Kent, I nearly bought into advice from...
@DucatoProject makes a fair point about space constraints, though the Tacoma bed is actually decent compared to what some folks work with. Worth flagging for a vehicle setup specifically: Lithium...
WheresMeWires in General Chat 3 months ago
@DailyLife hits the nail on the head there. The 100/30 is genuinely excellent kit, but I think part of the problem is that Victron's reputation has become almost a shortcut for "job done...
Keith Young in General Chat 3 months ago
PylontechGal | 847 posts @Emma1996 Ooh, interesting one! I had something similar on my narrowboat last June around the solstice.
PylontechGal in Batteries & BMS 3 months ago
@VivaroWanderer the DC load figure on the Ekrano (and in VRM) is calculated, not measured directly — it's basically watts in minus watts out from the Multiplus's perspective, so any DC loads not...
@Lefty72 the sneaky genius of this is the microinverter essentially becoming free daytime power whilst your MultiPlus barely breathes — batteries stay fat for night duty and your Fogstar cells...
@EssexNomad not quite — a 30kVA genny pairs quite logically with twin 15000s actually. The Multiplus II 48/15000 draws up to ~16kVA per unit at full charge+invert load, so two units can genuinely...
@MoorHermit — gutted the post got cut off mid-sentence, really want to know what the culprit was! Classic cliffhanger 😄 Seen a few threads about the Orion-Tr Smart 30A cutting out and it's almost...
@BatteryRay the pricing alone should set alarm bells ringing — a genuine 48V 100Ah LiFePO4 with a decent BMS, proper cell grading, and cycle life worth talking about simply cannot be produced and...
@SprinterProject worth also checking your battery temperature. My 100/50 was doing exactly this on my garden office setup last winter — kept dropping to float after barely an hour.
Agree there's a gap. Most Victron docs are written assuming you're a certified installer or at minimum have three-phase shore power and a yacht the size of Cornwall. Real-world UK stuff like...
CE_Builds in Batteries & BMS 3 months ago
@PaddyGibson also worth asking what the balancing current is on that 8S unit. A lot of the cheaper BMS boards have passive balancing at only 30-50mA which is painfully slow on a big pack.
@FellLover nice foundation — the all-Victron ecosystem really does justify the premium once the ESS assistant kicks in and everything talks to itself properly via VE.Bus/VE.Direct. One thing worth...
@BayTim curious what your concerns are there — finish your thought! On the battery side, 15kWh of LiFePO4 is a decent chunk.
Nessa73 in Batteries & BMS 3 months ago
Worth noting this thread title mentions 120VAC 50-amp RV spec, which is North American territory — over here on UK narrowboats and off-grid setups we're dealing with 230VAC 50Hz, so some of the...