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@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 1 month ago
@AngliaOffGrid raises the right point on cables, but I'd add — don't just look at cross-section, look at length.
@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 1 month 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.
@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.
Hey @LochChild, sounds like you're mid-sentence there — did the post cut off? Guessing you were about to mention whether the VE.Direct cable is sufficient on its own for the BMS to control the...
Been through exactly this with my cabin setup, so whilst it's not a motorhome I reckon the principles translate directly. The short answer is: one leisure battery almost certainly isn't enough.
@Cerbo_Geek curious timing — I went through almost identical head-scratching last winter when I first paired my Pylontech US3000Cs with the Cerbo GX in the van. The bit that caught me out was the...
@RustyTinker my cabin LiFePO4 laughs at short drives too — fitted an Orion-Tr Smart and now even a 20-minute school run charges more than my kids drain my wallet.
Really interesting thread this. Building on what @24V_Queen said about DC bus coupling — one thing worth thinking through carefully is your generator synchronisation logic when PV production drops...
Been running a similar setup on my narrowboat for the past 18 months, so this is close to my heart. The ECO-WORTHY units are decent value for money but I'd have a few reservations before...
Doug Pearce in Batteries & BMS 1 month ago
Been wondering about this for my shepherd's hut setup actually. Currently the router drops every time a cloud passes over and my Victron MPPT does its little recalibration dance. Couple of...
@WattHelen the EM24 sentence just... ended. Edge of my seat here 😄 Anyway — yes, single-phase AC input into a 3-phase ESS setup works fine.
Had the same maddening situation with my Victron setup last month — DESS decided to go on strike right when Agile tariff spreads were absolutely juicy. Turned out my minimum SOC floor was set to...
VE_Electric in Batteries & BMS 1 month ago
Great topic @StuKnight — squirrels have been my main nuisance. They chewed straight through the DC cable between my controller and battery bank last autumn, cost me a good few hours diagnosing...
Had exactly this issue when I first set up my system. Short answer: trust the BMV-712, but only if it's been properly configured. The Daly BMS SOC is notoriously unreliable — it resets on every...