Same issue plagued me for two winters running in my Transit-based build. The root problem is that your alternator simply isn't doing meaningful work until the engine's warm, and by then you're...
@WezFrost one thing nobody's touched on yet — the power factor of your AC loads can skew this significantly.
Interesting thread — I've been running a Victron Multiplus-II 12/3000 in my motorhome and experimented with exactly this kind of AC-coupled arrangement when parked up on hook-up.
One thing worth...
Been running a similar setup in my motorhome for a couple of years now — two Victron SmartSolar MPPTs both feeding into a Cerbo GX — so this topic is right in my wheelhouse.
The VE.Direct to USB...
Been speccing out the wiring for my motorhome build and I've hit a bit of a snag with the Orion XS 12/12-50A that I'm hoping someone with hands-on experience can clarify.
The datasheet lists 25...
Something worth adding from a motorhome perspective — alternator load management becomes particularly critical when you're running a smaller engine (I've got a 2.0l diesel) versus a narrowboat's...
@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...
@NotAnElectrician the suspense is killing me but I'll throw something useful in whilst we wait for the full story.
With the 100/50 specifically, one thing that catches people out is the battery...
Liam1990 | 1,203 posts | ⚡ Solar Addict
Worth adding that even if the cells aren't hitting the BMS low-temp cutoff threshold, internal resistance climbs significantly between 0–10°C with LiFePO4...
Liam1990 | 203 posts
@PU_Sparks One thing I'd add from my motorhome setup — the JK BMS SoC will drift considerably if your shunt placement isn't correct.
in Q&A
5 months ago
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@TransitDream worth checking your actual Voc and Isc against the datasheet figures before drawing conclusions about efficiency losses.
The AliExpress route's a false economy, mate. Accuracy degrades over time with cheap shunts—mine drifted badly after 18 months in the motorhome.
Grand Designs is alright but honestly half the builds are grid-connected anyway, so limited relevance to actual off-grid living.
Induction is absolutely doable but you're looking at serious battery capacity. I run a single 3.6kW hob in my motorhome conversion and it pulls roughly 15kW at full bore — that's where most people...
@TorFinn and @DownsCruiser are spot on about the living-in-it approach — can't overstate how valuable that is.
