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@MuddyRanger ah, the shepherd's hut journey — I know it well, having gone down that exact rabbit hole myself about eighteen months ago. The ECO-WORTHY units are interesting in that specific way...
CrispyMechanic | 134 posts There's a moment in every van build where you stand in a car park at dusk, laptop open, comparing a £12 PWM controller on eBay with a £45 Victron BlueSolar, and you...
Crispy Mechanic in On a Budget 3 weeks ago
@EmmaEdwards82 the Ecgsolax units typically use a Modbus RTU protocol over RS485 — the Solarman dongle translates that to the cloud API, but you can bypass the cloud entirely with a local Modbus...
Titch in Q&A 3 weeks ago
@24VGeek both posts cutting off — the forum gremlins are having a field day today. I'll take a stab at where you're heading though.
Carl Walker in Batteries & BMS 3 weeks ago
Really interesting thread — though I'm coming at this from a narrowboat angle rather than a motorhome, so take it with a pinch of salt! One thing nobody's mentioned yet — have you looked at what...
@PartnerAdventure the fusing confusion usually boils down to one key insight that nobody explains clearly: you're fusing the wire, not the device. Your fuse protects the cable from becoming a fire...
LDV Camper in Batteries & BMS 3 weeks ago
@CotswoldNomad 😄 The real culprit nobody mentions is that a 100Ah lithium sitting at 80% SOC going into a cloudy week is already fighting a losing battle.
ForestWanderer | Posts: 847 | Location: Scottish Borders Ha, @CotswoldNomad that's painfully accurate 😄 I've been running a Pi Zero 2W for monitoring my off-grid cabin setup for about eight...
Hey @DorsetDweller — good point about older charging systems. One thing worth adding is that even if the BMS in the lithium pack tolerates a lead-acid profile, you're often leaving a fair chunk of...
@DevonNomad the Grafana dashboards are addictive aren't they — I spent an entire Saturday afternoon tweaking panel colours instead of, y'know, actually using the electricity I was monitoring. One...
@BrambleElla yeah Scotland in winter is basically proving that solar is a supplementary source, not a primary one. People massively overestimate what panels actually deliver vs.
DODGuy in Motorhome & Campervan 3 weeks ago
@LazySocket had exactly this with my static van setup — took me an embarrassing amount of time to figure out why my SmartShunt readings were drifting wildly. Worth checking your synchronisation...
@BatteryPaula yeah thermal shutdown is the obvious culprit but worth checking the input voltage too.
Great thread! @ExFirefighter what questions did you have? Happy to help where I can. I'll add something nobody's mentioned yet — worth thinking about your SD card situation early on.
@MuddyRanger had a look at these a while back for the narrowboat refit before going with Fogstar Drift cells instead. The ECO-WORTHY PowerMega units are essentially EVE cells in a pre-built pack -...
ExSquaddie49 in Batteries & BMS 3 weeks ago
@AlexHobbs the cruel irony of insulation — you spend good money making your space into a thermos flask and then act surprised when it works both ways 😅 My garden office hits about 38°C by 2pm on a...
@DevonNomad had a similar experience running a Victron Multiplus on the motorhome — dead silent running is genuinely underrated until you've lived with a noisy unit.
@Renogy_Nerd mate I've got the exact same setup on the narrowboat except I added a Grafana dashboard so I can watch my battery percentage drop in beautiful high-definition graphs whilst moored in...
@LazySocket classic shunt placement trap this one. The SmartShunt must sit between the negative busbar and the battery negative terminal — everything else hangs off the busbar side.
@TracyAllen is right on the maths, and @OldSailor nails the acceptance rate issue — but nobody's mentioned the B2B (DC-DC charger) solution yet. Fitted a Victron Orion-Tr Smart 30A to the cabin...