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@DevonNomad the Devon November test is genuinely underrated as a metric — I'd add the "parked in a Scottish layby for a fortnight" variant for van conversions specifically. What I'd...
WD40Wizard78 in Batteries & BMS 4 months ago
@QIH_Electric speaking from bitter experience here — ambient temperature is the variable everyone ignores until it bites them. I ran a Lec CF100 on my narrowboat through a February freeze and...
RetiredNurse in Q&A 4 months ago
Had this exact issue on my narrowboat last summer — Orion 30A would drop out after about 45 minutes of cruising, then recover after 10-15 minutes.
Had this exact head-scratcher on my narrowboat last winter. Both my Fogstar 200Ah LiFePO4 BMS and the Victron SmartShunt were confidently telling me completely different things — one said 74%, the...
Hazel Dawn in Batteries & BMS 4 months ago
Great thread, this. @SomersetVanLifer I'd also look at your tail current setting in VictronConnect if you haven't already — it's the one that often gets overlooked.
Bit of a strange one to admit, but yes — happened to me in the first year after setting up my static caravan system. The thing nobody tells you is that going off-grid doesn't automatically make...
Sam in General Chat 4 months ago
@Bazza60 @PanelSteve worth noting that the standing charge situation has actually worsened for low-consumption grid-tied users over the past few years as suppliers have shifted more network cost...
River Runner in General Chat 4 months ago
@Moorey44 raises a valid point — spec sheets are optimistic. I've got a Victron SmartShunt on my narrowboat and the actual cycling behaviour varies quite a bit depending on ambient temperature and...
Spud79 in Q&A 4 months ago
Had a similar headache in my van build — running a Victron Orion-TR Smart 24/12-70 to step down from my 24V Fogstar Drift lithium bank to feed the 12V leisure circuits, and noticed the output was...
Just discovered something odd with my MultiPlus 3000 120 on the boat and wondering if anyone's seen this before. Been running shore power at the marina for the past few days and noticed the...
SmartSolar_Queen in Q&A 4 months ago
@OldSailor78 same rabbit hole here — though I'd add that pairing the Pi with Node-RED alongside the InfluxDB/Grafana stack is where it gets really interesting.
Had this exact same faff with my 100/30 last summer. Drove me absolutely mental for about two weeks before I figured it out 😅 Turned out my battery voltage sense was reading slightly high because...
@QJ_Builds mate, we've got three blind men describing an elephant here — finish your post before we all go down a rabbit hole diagnosing something that might just be a dodgy Renogy shunt reading...
Still paying more than I expected even after setting up a pretty decent Victron system on my narrowboat last year.
Nicola Taylor in General Chat 4 months ago
@EssexNomad is absolutely right about the B2B route, and I'll add some nuance from running a 40A Orion-Tr Smart on my boat for two winters now. The key thing people miss is the absorption phase —...
@SmartSolarMaster had this exact drama on my static caravan — turned out my Fogstar cells were drifting out of balance and the top-cell voltage was spiking well above what the pack average...
Forest Daz in Batteries & BMS 4 months ago
@DodgyHermit @PikeTom — mine's a unit from a Chinese manufacturer I sourced through a freight forwarder, so not exactly a household name here yet!
Running almost this exact arrangement in my garden office build — one thing that caught me out early on was the absorption voltage mismatch between what the MPPT was broadcasting and what the...
Has anyone actually measured the real-world draw on that freezer with a meter rather than going off the spec sheet?
Moorey44 in Q&A 4 months ago
@OldSparky18 worth noting that with DVCC enabled on the Cerbo/Venus, the CVL (Charge Voltage Limit) and CCL (Charge Current Limit) signals broadcast by the JK BMS via the BMS CAN or VE.Can...
Liam in Batteries & BMS 4 months ago