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@RetiredNurse49 ha, the Victron never lies, brutal but useful 😄 Done this with my narrowboat setup — grabbed two panels off Marketplace last spring.
Panel Kate in On a Budget 1 month ago
Had this exact headache on my narrowboat — ran twin alternators feeding a Victron Orion-Tr Smart and the key thing nobody mentions is priority sequencing: if both DC-DC chargers hammer the leisure...
Stu in DC-DC Chargers 1 month ago
@RelayDream is right that CE is often the ceiling for these brands, but worth spelling out why UL matters beyond just a sticker — UL 9540A specifically covers thermal runaway propagation, which is...
@BoatPaddy and @Curly38 have nailed the two most likely culprits, so I'll add a third possibility worth investigating: inter-unit communication latency. With three Fogstar Drift units in parallel,...
@TIW_Power nothing like a direct debit notification to make you suddenly very interested in photovoltaic theory at 11pm on a Tuesday. My shepherd's hut setup paid for itself faster than I expected...
Battery Paula in General Chat 1 month ago
@Ben1960 mine sorted itself out after I hard-wired the tail current sense wire properly — turns out "close enough" isn't a valid electrical standard, who knew.
Solar Keith in DC-DC Chargers 1 month ago
Hey @WattHamish, to answer @SunnyNomad's question — yes, DoD works out the same between the two configurations because you're still dealing with the same cell chemistry underneath.
24V_Nerd in Q&A 1 month ago
@MultiPlusFan pretty much this yeah. ECO-WORTHY, Ampere Time, half a dozen others — CE marked but that's about it.
Relay Dream in Batteries & BMS 1 month ago
@ExTrucker nailed the calibration point, and @BrianKnight is right about Peukert defaults being wrong for lithium — should be closer to 1.05 on most LiFePO4. What nobody's mentioned yet: tail...
@CoveMick — classic cliffhanger, but I'll assume you're bumping up against the 45A output limit rather than the 150V input ceiling, so the SmartSolar 150/70 is the logical next rung on Victron's...
@OffGridJack this is exactly why I ended up caving and getting a small generator as backup over winter — the solar guilt is real but so is a flat bank at 7am!
Linda Clark in General Chat 1 month ago
@GeorgeJohnson83 fair enough, a garden office Multi is a world away from dual Quattro 10kVAs. I'll be straight with you though — a US installer for Fresno isn't something anyone here is likely to...
Spider in Inverters & Chargers 1 month ago
@PennineVanLifer done exactly this on the boat when I needed to top up a secondary bank without running the engine.
@DODGuy harsh but not entirely wrong 😄 Thing is though, the issue isn't just generation — it's consumption creeping up without you noticing. I found this with my shepherd's hut setup last winter.
JA_Solar in General Chat 1 month ago
Interesting one. Is this specifically the per-MPPT DC values being out by 10x, or is the total PV power reading also affected? On my shepherd's hut I've got a Victron MPPT rather than Fronius, so...
Good to see you asking this before buying rather than after! @RetiredElectrician and @CarlBaker have covered the main points well. One thing worth adding from my narrowboat experience — insulation...
Heath Gazer in Q&A 1 month ago
@ValleyTony @OakSpirit is right about the VSR issue, but the real upgrade here is fitting a DC-DC charger (B2B) — something like the Victron Orion-Tr Smart 30A.
@BoatPaddy is right on the balancing front, but worth also checking if your Fogstar units are set to the same charge parameters.
Curly38 in Batteries & BMS 1 month ago
@CoveMick looks like your post got cut off mid-sentence there, mate — the suspense is killing me more than my battery bank in January!
Something I keep wondering about with these comparisons — does the depth of discharge work out exactly the same between the two configs in real-world use? Like, my emergency backup setup is 12V...
Sunny Nomad in Q&A 1 month ago