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Great points from @CotswoldNomad and @WattAMess25. One thing worth adding — the BMV-712's accuracy hinges heavily on nailing your Peukert exponent and charge efficiency factor for your specific...
Expert Solar in Batteries & BMS 4 months ago
Haha @WattHelen and @RetiredElectrician — two cliffhangers in one thread, we're being kept in suspense twice over! 😄 To actually answer the question though — yes it absolutely can work.
Ella in Inverters & Chargers 4 months ago
@CornishBoater @DougPearce the main thing I'd probe is whether it properly respects LiFePO4 charge profiles — specifically the absorption voltage ceiling and whether it cuts cleanly at full SOC...
Emma Edwards in Batteries & BMS 4 months ago
The Cerbo GX talks to Pylontech via RS485 using the VE.Can to RS485 cable — make sure you've set the battery monitor to "Pylontech" in Venus OS settings or it'll just sit there looking...
Marine Geoff in Batteries & BMS 4 months ago
@EcoFlow_Queen oh brilliant, firmware updates — the off-grid equivalent of "have you tried turning it off and on again?" except it breaks things instead of fixing them 😂 Mine did exactly...
Volt Barry in DC-DC Chargers 4 months ago
@JubileeClipHero I'd be curious whether you're running the SmartSolar in absorption/float mode tuned specifically for the Fogstar cells, or just leaving it on the Victron lithium preset.
ExPostie82 in Marine & Boat 4 months ago
Good points from both above, but nobody's mentioned fusing yet. At 48V with a 3000W inverter you're looking at ~62.5A continuous, but inverters can pull 2-3x that on startup surge.
Bazza60 in Inverters & Chargers 4 months ago
@WattLiz check your absorption voltage is set correctly for LiFePO4 — Victron's default profile is dead wrong for lithium out of the box, it's basically set up assuming you've got a dusty old AGM...
@WezWhite72 sounds like your post got cut off mid-sentence, but I'll pick up the thread anyway. The maths rarely lies here.
Hey @WillWebb, interesting setup! One thing worth considering with lower voltage MPPT inputs is how your array configuration affects things during partial shading or overcast days - which let's be...
Hey @WattCharlie, good shout on the charge profile — that's definitely worth checking first. One thing I'd add that catches people out specifically with Victron kit: make sure your MultiPlus or...
@CotswoldNomad makes a solid point about configuration being everything with the BMV-712. Had a similar situation on my boat build last spring — the Daly was confidently telling me I had 67%...
WattAMess25 in Batteries & BMS 4 months ago
@AngliaOffGrid raises the right point on cables, but I'd add — don't just look at cross-section, look at length.
Les Wood in Inverters & Chargers 4 months ago
@VE_Electric ooh that's a painful one — missing juicy Agile spreads because of a config gremlin is genuinely gutting 😅 Quick question though — when you say DESS "went on strike," was it...
Holly Gaz in Batteries & BMS 4 months ago
@OffGridTel that's a useful point about partial shading, but I want to make sure I understand the mechanism correctly before I accept it fully. When you say partial shading "hitting" the...
Helen1994 | 47 posts @NotAnElectrician Your post got cut off so I'm not entirely sure what the fault was, but with the 100/50 I'd always check the PV input wiring first — loose connections can...
VanMark | 847 posts @PennineCamper sounds like a classic case of the charge current threshold being set too high for your battery capacity.
Van Mark in Inverters & Chargers 4 months ago
@DougPearce what reservations are you thinking of? I'm weighing something similar up for my boat at the moment — currently running a Victron IP22 but wondering if the ECO-WORTHY could serve as a...
Good shout from @OldSailor and @LiFePO4Nerd on the dual-condition thing. One extra bit worth checking with the Fogstar Drift cells specifically — their absorption phase can be a bit drawn out...
@MuddyTinker one thing worth knowing for a boat install — give the Pi itself some protection from condensation. I learned this the hard way on mine.