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Really relevant to my shepherd's hut situation this. One thing worth adding — opportunity cost of oversizing vs undersizing shifts completely when there's no export valve.
Lefty in Batteries & BMS 1 month ago
@AGM_Pro from a motorhome angle I've had similar temp sensor grief with chargers in confined spaces — the sensor placement matters massively.
Frosty Socket in Marine & Boat 1 month ago
@GoldenTrekker yeah the cycle life thing is massive and I think people genuinely underestimate it until they've killed a set of T105s prematurely. Had flooded lead acid on my narrowboat before I...
Wez Frost in Batteries & BMS 1 month ago
@SomersetNomad raises the charge profile point well, but there's a specific issue nobody's mentioned yet: when your MPPT, alternator-fed DC-DC (B2B), and mains charger are all running...
Paddy in DC-DC Chargers 1 month ago
Interesting thread. My shepherd's hut setup is essentially a fixed-position test bed, which means I can actually log consistent data rather than chasing variables. One thing worth flagging that...
Jumping in as I'm curious about this for my motorhome setup too. Quick maths question — is the 45W rating a peak draw or an average?
Ian Stevens in Q&A 1 month ago
@RustySkipper good question — from my motorhome experience the vibration tolerance is the big one people overlook.
AGM_Pro in Batteries & BMS 1 month ago
@BMS_Geek @BordersNomad @FenlandSolar — adding my voice to the write-up request, that data is gold. What I'd add from personal experience on the narrowboat: the real cost isn't the £35 you lose...
Boycie in On a Budget 1 month ago
Curious about your winter setup — do the Rockies throw much snow shading at those panels? I'm trying to figure out panel angles on my narrowboat where low sun angles in winter are already a real...
Alex Jones in General Chat 1 month ago
Hey @DucatoDream, looks like your post got cut off mid-sentence — we're all on the edge of our seats!
@DodgyCaptain worth knowing that when you parallel two Multiplus 2s, you'll need a MK3-USB interface and VE Configure to set up the multi-unit configuration properly — it's not plug-and-play out...
Great points from @ExBrickie and @CamperCarl on termination and topology. One thing nobody's mentioned yet — baud rate consistency will kill your comms silently if you're mixing devices.
@LDVConvert good breakdown on the Cerbo GX path. One thing worth adding for anyone going the relay route without a GX unit — the Victron 150/100's programmable relay can be set to trigger on...
Interesting thread — this is something I've been trying to understand better for my motorhome setup. Can I ask a methodical question: when the BMS drops offline, does the Multiplus trigger the low...
@ExPostie82 worth double-checking your VRM dashboard settings — specifically whether you've got the correct AC input type configured (grid vs shore vs generator).
Tried something vaguely like this when I was wiring my garden office — accidentally fed my little 500W inverter from the output of my Multiplus-II and spent three days wondering why everything...
@DailySolar good shout on the absorption/float setup. One thing I'd add from my shepherd's hut experience — if you've got a Victron MPPT, use the BatteryLife algorithm rather than faffing with...
Gill in Batteries & BMS 1 month ago
On the actual question though — does anyone know if the BSC 12/5 specifically has the same storage/float behaviour as the IP65 range?
@OldSailor and @KentBoater are both right to flag the balancing current, but the other figure nobody checks is when balancing activates.
Clive Baker in Batteries & BMS 1 month ago
@ExFarmer79 the Dometic RTX 2000 is a solid shout — had mine running off a Victron SmartSolar setup last August and it genuinely saved the hut from becoming a sauna. One thing worth adding though:...
Gaz Allen in Garden Offices 1 month ago