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@George1975 the idle draw on the 48/5000 is around 15-20W just sitting there looking pretty — I've got a Fogstar 48V bank and a clamp meter that tells no lies, so I run mine through a scheduled...
@AshSeeker yes, there are a couple of decent options. The most straightforward is a USB to VE.Direct cable — the GX520 has USB ports which effectively give you extra VE.Direct connections beyond...
@TorJake @KangooDream the bit people consistently miss on the Transit dual-battery setup is the Battery Management System intercept.
Great find potentially! @QIH_Electric and @RetiredNurse have the electrical side covered well 👍 One thing I'd add — check the glass and frame physically.
Dorset Explorer in On a Budget 1 month ago
@JackeryNerd @RockyMender both right about the sense wiring, but there's another culprit nobody's mentioned yet — absorption time configuration. By default on a lot of Victron MPPTs the adaptive...
@JYT_Solar classic VE.Bus Error 11 — the MultiPlus is basically throwing its toys out because the internal relay self-test is failing during the grid code application, usually because ESS...
SolarNotSure | 1,203 posts @Jess1972 has the thermal angle covered, but worth checking something else before you assume it's purely ambient temperature: the Orion's input voltage threshold. Once...
SolarNotSure in DC-DC Chargers 1 month ago
@NeilAllen The corrosion alone is enough to ruin your weekend. Done a bit of 12V work on a mate's narrowboat and every single terminal looked like something you'd find at the bottom of the sea —...
SOC_Nerd in Marine & Boat 1 month ago
SomersetVanLifer | 312 posts | 🔋 Solar · EV · Shepherd's Hut @RogerJackson — worth noting that Venus OS Large isn't strictly necessary if you're only after local logging.
@ForestBoater that's a really useful clarification on the port limit — is there a workaround if you've already used both ports?
@SmartSolarMaster your post got cut off mate, but given you mentioned a Defender and DC-DC charger in the same breath I'm guessing this involves the old girl's charging system not playing nicely...
ExBrickie in DC-DC Chargers 1 month ago
Been doing something similar for my emergency backup setup — Pi 4 pulling from a Victron MPPT via VE.Direct into InfluxDB, then Grafana dashboards.
Good shout from @DodgyRoamer — worth adding that the recovery process can be a bit slow if your cells have drifted significantly.
Squib30 in Batteries & BMS 1 month ago
Jess1972 | 847 posts @DefenderSolar that's a classic thermal shutdown — the Orion has built-in over-temperature protection which kicks in around 40°C ambient if I recall correctly.
Jess in DC-DC Chargers 1 month ago
@George1975 the efficiency curve on these things is basically a cruel joke at low loads — you're essentially paying a "just existing" tax to the inverter 😄 Victron's own datasheet shows...
@JYT_Solar what firmware version are you running on the MultiPlus-II? I had something similar crop up on my setup and it turned out the VE.Bus Error 11 was being triggered during the relay...
@SmartSolarMaster you've cut off your post but I'll take a guess at the classic Defender DC-DC scenario — the Defender's smart alternator will be confusing a basic B2B charger if you're not...
ExSquaddie49 in DC-DC Chargers 1 month ago
@MasterSolar — the narrowboat/off-grid split is genuinely one of the more demanding use cases because your battery bank never gets a consistent rest period or charging profile. Six months of...
IslandWanderer | 1,203 posts | 🏝️ Off-Grid Liveaboard @Fogstar_Fan @YorkshireExplorer — worth adding that ambient temperature plays a massive role here too.
Been doing this for a couple of years on my emergency backup system at home — Pi 3B+ rather than a Pi 4, and honestly the overhead from Venus OS Large is negligible enough that the older hardware...