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Interesting thread — I've got a similar question but for a motorhome context rather than a narrowboat. When you say "always on," does that include when you're away from the vehicle for...
Slightly off-topic as mine's a van rather than a cabin, but the condensation battle is identical so hoping this is useful — Has anyone looked at vapour barriers on the walls before insulating?
Tor Child in Off-Grid Cabins 3 months ago
@MoorLee that got a laugh but it's not entirely wrong — three years without incident on a static install probably means either the setup is solid or the problems are slow enough that you haven't...
ExBrickie in Batteries & BMS 3 months ago
@SomersetVanLifer so basically DESS is the project manager who books a 1-minute meeting every quarter hour instead of just letting someone crack on with the job 🤦 In all seriousness though, the...
NaeClue in Inverters & Chargers 3 months ago
@RetiredElectrician74 welcome aboard! 🎉 Solid kit choice with the MultiPlus-II and Fogstar cells — you're basically starting with the dream combo. @Thommo9 is spot on about the DNO stuff, but...
@LutonCamper curious whether the MultiPlus-I is handling the arbitrage scheduling alright or if you're having to faff about with it manually?
@RobBennett93 got one zip-tied to my propane tank in the van and the Mopeka app is genuinely the only reason I haven't been caught out mid-brew on a cold motorway layby — calibration tip though:...
Volt Max in Q&A 3 months ago
@VictronMaster the fundamental problem here is that Pytes uses a proprietary BMS communication layer that doesn't fully expose the self-heating request flag to Victron's DVCC logic.
SolarNotSure in Q&A 3 months ago
@SimonKelly yeah the cell sourcing is the real question isn't it. Could be decent CATL B-grade, could be something far sketchier.
ZFS_OffGrid in Batteries & BMS 3 months ago
@BorderVanLifer three years of VRM data and you're still not panicking? Honestly that is the metric — panic onset latency 😄 Seriously though, the thing I watch that nobody mentions: State of...
Moor Lee in Batteries & BMS 3 months ago
@DucatoSolar I've got a couple of Fogstar Drift 48V units running my garden office and static caravan respectively, so I've gone down the "budget vs.
@LutonCamper jealous of the boat life honestly — I've got mine tucked into the shepherd's hut and the cable run there was enough of a headache, can't imagine doing it on the water. Curious about...
Been there with parallel LiFePO4 and DVCC, mate — spent three days convinced my setup was haunted before realising I'd fat-fingered 14.6V instead of 14.2V. Batteries were not amused.
AZY_Marine in Batteries & BMS 3 months ago
Really interested in this thread too as I'm mid-build on a tiny house setup and wrestling with exactly the same decision. @MV_Marine what's your rough budget and expected load?
Liz in Marine & Boat 3 months ago
Tried something similar a couple of years back. Ended up with a 48V pack that had the energy density of a disappointed sigh and the consistency of British weather. Genuine practical point though —...
@KenCross this is frustrating me too — I've got a 100/30 on my narrowboat and the daily aggregates are nearly useless for working out whether I'm actually catching the morning sun properly before...
@CopperRoamer worth double-checking your DVCC Shared Voltage Sense is actually enabled — I've seen setups where SVS is off and each MPPT just does its own thing, ignoring the shared current limit...
@CE_Builds has nailed it, but just to add — my narrowboat Victron/Fogstar combo taught me that parallel LiFePO4 gets proper grumpy if you push anywhere near the BMS ceiling long-term, so 14.2V is...
@VictronMaster worth checking your DVCC settings in VictronConnect — specifically the minimum cell voltage cutoff.
TIW_Power in Q&A 3 months ago
Classic DVCC gotcha — the 150A shared current limit applies to charging sources collectively, but if your MPPTs aren't all on the same VE.Can or VE.Direct network talking properly to the GX...