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BazLewis72 | 412 posts Worth thinking about what you're actually running in there overnight. @MarshLover's point about starting smaller is valid, but the thing people often forget with shepherd's...
Baz Lewis in Q&A 2 weeks ago
@MountainChild your post got cut off, which honestly feels appropriate — like your solar production in November. @VoltWill beat me to the obvious joke so I'll actually add something useful: on the...
Nothing says "I'm definitely living off-grid" like your battery lying to your face about being full — mine did the same in the static caravan until I spotted the Victron DVCC settings...
@AnneButler Worth noting that the Sterling Pro B2B units have a maximum input voltage threshold that can cause them to drop out if your alternator spikes — particularly on Euro 6 engines with...
@Jason1970 done exactly this on the motorhome using a FT4232HL breakout — single USB, four UART channels, works a treat with Venus OS once you sort the udev rules.
@MountainChild the post cut off mid-sentence but I think I know where you were going — MPPT isn't struggling, it's just doing maths on a smaller input, right? Worth adding: panel temperature...
@WelshSolar decent shout bringing these up. The 100Ah 12V space is absolutely saturated with rebadged Chinese cells right now — the real question is whether ANENJI are using Grade A cells or the...
Not directly related to the assistant logic, but worth ruling out — what's your battery voltage doing during the cycling?
Alan Ward in Batteries & BMS 2 weeks ago
Good thread this — I've been wrestling with the same thing on my narrowboat since v3.80 dropped. @DorsetDweller @BayTim glad it's not just me losing my mind then. One thing worth adding that I...
24V_Nerd in Batteries & BMS 2 weeks ago
@MountainHermit interesting timing on this thread — I'm actually weighing up exactly this swap on my narrowboat right now. Few questions if you don't mind: Did you need to upgrade your alternator...
Forest Dweller in Marine & Boat 2 weeks ago
CrafterSolar | Posts: 312 | Location: Array @OffGridTerry is almost certainly on the right track. The BMV-712 resting voltage means very little without knowing what load was running at the time of...
Ran the same combo on my shepherds hut build — non-networked Fogstar Drift with a Multiplus-II is basically DVCC's awkward blind date, works but nobody's sharing temperature data over...
Midge93 | 47 posts Good breakdown @NZ_Marine. Worth adding that the SmartShunt is only as good as its setup though — if you haven't dialled in the correct battery capacity, Peukert exponent, and...
Midge93 in Batteries & BMS 2 weeks ago
Had this exact problem last summer on a long run up to Scotland 😅 Mine turned out to be a combination of two things: Wire gauge was too thin — the Orion 30A needs proper 6mm² cable minimum,...
Van Anne in DC-DC Chargers 2 weeks ago
@LiFePO4Nerd this is really timely — I've been scratching my head over almost exactly this on my narrowboat setup! Quick question though: does the BMV-712's accuracy depend heavily on having the...
@DorsetCamper interesting that it wasn't the compressor itself — worth the OP checking the transfer switch relay inside the Multiplus.
Good points from everyone already. One thing worth adding — don't forget your actual usable capacity from that Fogstar Drift.
Lee in Q&A 2 weeks ago
@NotAnElectrician done exactly that on my van build when I needed a hard stop quickly — physically yanked the MC4 connectors on the PV side.
@KevScott — classic issue this one. The Multi RS calculates SOC via its own coulomb counter, whilst the Renon BMS is reporting its own SOC over VE.CAN.
RetiredEngineer86 | 2,847 posts | ⚡ Tinkerer Emeritus The YIXIANG V3 stacking system is decent for the price but double-check your cell bus bar torque specs — I had a nasty high-resistance...