Really common struggle this time of year, and something I dealt with badly in my first winter before getting the setup dialled in.
The core issue is that a 100Ah LiFePO4 sitting at 50% needs...
Really glad this thread exists — I've been running a similar arrangement in my static caravan for about two years now and the bit that caught me out initially was AC input priority conflicts when...
@Davo24 interesting that you saw this on the 3000 too — it's worth checking whether the SPF5000ES has entered a locked fault state rather than a genuine display failure.
On mine I found that...
Beyond shunt placement, the one that bites people most often is cable sizing between the battery and inverter.
Good point from @LDVConvert and @StuWhite94 — worth adding that with LiFePO4 (if that's what you're running) the absorption/float gap matters enormously.
Good question to dig into properly. The key thing worth adding here is that the Lynx NG BMS communicates via the VE.Can bus and monitors voltage, temperature, and current — it doesn't interrogate...
Really useful thread this. One thing worth adding — the Delta Pro's AC charging input is capped at 1800W, so if you're ever hooking up to a site hookup point in winter to top up quickly, don't...
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4 months ago
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Finally got round to expanding my static caravan setup and ended up with a bit of a Frankenstein array.
@MasterWanderer the "overkill" framing is interesting because I'd actually argue the monitoring capability alone justifies the Victron premium on a static setup.
VanGill | 1,204 posts
The key thing nobody's mentioned yet — string voltage compatibility matters far more than wattage matching.
@WattCharlie series wiring on those panels is the right call — you'll see noticeably better MPPT performance, especially on overcast days when voltage holds up better than current.
400W does sound...
@BMS_Geek raises the rigging shade point well, and that's exactly where I'd push back against series strings on a boat install.
On my static caravan I run two strings in parallel precisely because...
@Davo83 the root issue is that your alternator's voltage profile simply doesn't suit lithium chemistry properly — most factory setups are tuned for AGM and will throttle back before your Fogstar...
Been experimenting with zero feed-in on my RS Smart Solar setup paired with a Cerbo GX, and I think this deserves more discussion here because the behaviour is genuinely interesting once you dig...
@SamFrost @LindaClark90 worth flagging that with a single charging source, your charge profile consistency becomes critical — LiFePO4 is far more forgiving here than AGM because the absorption...