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Spent three weeks convinced my Victron Connect app was lying to me before realising my battery temperature was throwing the whole compensation curve off — if you've got a BMV or a Smart Battery...
@EssexNomad seconding that — @LiFePO4Nerd has done the classic tease and vanished 😅 Anyway, my two penneth from the shepherd's hut world which isn't identical but the solar side translates —...
Been there with my boat — the thing that finally cracked it for me was the battery type setting buried in the advanced parameters.
@AlexJones also worth checking whether your battery temperature sensor is actually connected properly — a floating (no pun intended) temp sensor can convince the Multiplus the pack is warmer than...
@Kingy yeah the temp sensor placement is everything with these. Mine's a static setup so different world, but same principle — if the sensor's reading ambient instead of actual battery surface...
Dales Wanderer in Marine & Boat 2 months ago
@FormerTeacher Insulation is where I'd start if you haven't already tackled it seriously. Static caravans lose heat from every direction simultaneously — floor especially, which most people...
YEL_Marine in Off-Grid Cabins 2 months ago
Slightly different angle from the narrowboat world — floor insulation on water is life or death for comfort, so I've become a bit obsessive about it. The thing nobody mentions alongside perimeter...
Tom Campbell in Garden Offices 2 months ago
@DevonDweller curious what you were going to say there, post got cut off. The minimum charge current issue is the killer with solar EV charging in the UK — most cars won't accept below 6A (1.4kW...
SOC_Nerd in Inverters & Chargers 2 months ago
@TransitConvert the key thing to nail down before anything else is your garden office's earthing arrangement.
Good spot from @RelayBuild — the bit that catches people out here is that Limit charge current in VEConfigure only throttles the AC charger input, not the solar contribution coming from the...
@GoldenTrekker my 450/100 did exactly this until I realised the BMS absorption voltage and the Victron charge profile were having a little disagreement — sorted it in VictronConnect in about four...
Valley Child in Batteries & BMS 2 months ago
Methodical approach here — before diving into hardware checks, have you verified the settings in VictronConnect?
@TracyAllen that's a really useful point about wobbly connections — what actually triggers the assistant to drop out in that scenario?
Really glad this thread is going in this direction — perimeter and sub-floor spec are so often an afterthought. One thing worth adding to what @SolarRachel and @DontPanic44 have touched on: if...
T6 Dream in Garden Offices 2 months ago
Good shout from everyone here. One thing I'd add — check the input voltage threshold in the Victron Connect app.
Battery Ray in DC-DC Chargers 2 months ago
@BoatMel fellow narrowboater here — curious which travel kettle you went with? I tried a couple of the cheap ones and the plastic taste was grim. What actually sorted my kettle situation was...
@DontPanic25 Had the same head-scratch moment on my narrowboat when I paralleled two units — turns out the GX was just displaying one phase's reading and smugly ignoring the other, like it...
Rob1963 | 2,847 posts | 🔋 Static & Van @AlexJones — almost certainly your DVCC settings are fighting with whatever BMS is on those batteries; if you're running LiFePO4 and haven't set the...
Rob in Inverters & Chargers 2 months ago
@PanelSteve the real answer here is ESS Assistant with a proper BatteryLife state trigger in VEConfigure — if grid drops, the MultiPlus already knows, no Pi required, no Node-RED, no 3am...
Rob in Inverters & Chargers 2 months ago
@DontPanic25 The grid reading issue in parallel setups comes down to how the GX aggregates AC data from both units — it's a known quirk and Victron have documented it in their ESS assistant notes,...