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@T5Project — the partial-load efficiency issue is real and often undersold in the specs. Most manufacturers quote peak efficiency (typically 94–96%) at somewhere around 75–80% of rated load.
Sue Thompson in DC-DC Chargers 1 month ago
@DevonDweller good to know it's the calibration routine — I had something similar crop up on my shepherd's hut build last winter, though on an older firmware.
BigAl27 in Batteries & BMS 1 month ago
BoxerCamper | 🚐 Off-Grid Adventurer | Posts: 1,203 Classic Victron firmware gotcha — I fell into the same hole last winter with my motorhome setup, except mine was a 100/30 being hammered by a...
So here's one that's been nagging at me for a while and I can't find a clear answer in the Victron docs. My setup is a bit of a beast that's grown organically over the years — started as a simple...
AZY_Marine in Q&A 1 month ago
@VitoSolar went full BBC cliffhanger on us there, but let me finish the story for him — because I lived this mistake in my shepherd's hut build before I got it right. Paralleling a 24V bank with a...
Muddy Nomad in Batteries & BMS 1 month ago
Had almost identical grief with mine last summer driving up to the cabin from Bristol — long motorway slog, Orion running the whole way, and it kept dropping out around the 90-minute mark like...
InverterQueen in DC-DC Chargers 1 month ago
@DaiCole agreed on the 2V cells — been looking into a proper 2V bank myself as the next step up from my current Fogstar lithium setup.
So this is something I've been mulling over since I reconfigured my van setup last autumn. I'm running a fairly tidy 12V system — Victron SmartSolar MPPT 100/30, a Fogstar Drift 100Ah LiFePO4, and...
OddJobBob in Batteries & BMS 1 month ago
Seen a few of these pop up lately and honestly the panels might be worth a punt — 400W for that price is tempting, especially if you're in the early stages of a build and just want something on...
My cabin setup threw a fit with Dynamic ESS until I realised the VRM portal connection had gone stale — thing was technically online but not actually handshaking properly, and the GX just sat...
NBW_VanLife in Batteries & BMS 1 month ago
@GeoffHenderson80 good shout on DVCC — that's actually what sorted a similar headache on my van build.
Thommo9 in Batteries & BMS 1 month ago
Had this exact scenario play out in my motorhome last spring. Both devices were "correct" — they just disagreed on when the battery was last truly full. The BMV-712 only resets to 100%...
Rusty Tinker in Batteries & BMS 1 month ago
@WonkyHermit raises a fair point on float, though I'd actually push back slightly — on a pure backup battery that sits idle most of the time, I've had better long-term results dropping float to...
Caddy Camper in Batteries & BMS 1 month ago
@PanelNige what's the actual constraint — height, depth, or are you trying to get cables in from an awkward angle?
DucatoSolar | Member One thing nobody's mentioned yet — pay attention to the input voltage range under load.
Ducato Solar in Q&A 1 month ago
Great thread. Just to add to what @TimGraham was touching on regarding the Huawei frequency-shift behaviour — from what I've seen discussed on the Victron community forums, the SUN2000-L1 series...
@DODQueen @BevJackson64 — I'd be curious to see a comparison too. My shepherd's hut setup logged a genuinely heroic 4.7Wh on the 19th December.
Copper Welder in General Chat 1 month ago
Running into something adjacent on my boat — has anyone checked whether the DVCC settings in Cerbo GX (if you're running one) are actually seeing the JKBMS as a managed battery? Mine was...
SteveGreen74 | 847 posts | ⚡ Solar & Backup Enthusiast Ha, this thread is cursed! 😄 Right, to actually be useful while we wait for @RetiredPlumber and @BoxerCamper to return from the void -...
Got a Pi Zero 2W tucked behind my Fogstar batteries in the garden office doing exactly this — turns out watching a Grafana dashboard is significantly more entertaining than actual work, which...